/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-simple/sll2c_remove_all.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 19:34:12,629 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 19:34:12,634 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 19:34:12,688 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 19:34:12,688 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 19:34:12,692 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 19:34:12,696 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 19:34:12,703 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 19:34:12,706 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 19:34:12,712 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 19:34:12,713 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 19:34:12,715 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 19:34:12,715 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 19:34:12,718 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 19:34:12,720 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 19:34:12,722 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 19:34:12,723 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 19:34:12,726 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 19:34:12,736 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 19:34:12,738 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 19:34:12,740 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 19:34:12,741 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 19:34:12,742 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 19:34:12,743 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 19:34:12,746 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 19:34:12,750 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 19:34:12,750 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 19:34:12,751 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 19:34:12,752 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 19:34:12,753 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 19:34:12,753 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 19:34:12,754 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 19:34:12,754 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 19:34:12,755 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 19:34:12,755 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 19:34:12,756 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 19:34:12,757 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2020-12-22 19:34:12,785 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 19:34:12,785 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 19:34:12,787 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 19:34:12,787 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 19:34:12,788 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 19:34:12,788 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 19:34:12,788 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-22 19:34:12,788 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 19:34:12,788 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 19:34:12,788 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-22 19:34:12,789 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-22 19:34:12,790 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-22 19:34:12,790 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 19:34:12,791 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-22 19:34:12,791 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 19:34:12,791 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 19:34:12,791 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 19:34:12,791 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 19:34:12,791 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 19:34:12,792 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 19:34:12,792 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 19:34:12,792 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 19:34:12,792 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 19:34:12,792 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 19:34:12,793 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 19:34:13,209 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 19:34:13,240 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 19:34:13,243 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 19:34:13,244 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 19:34:13,246 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 19:34:13,247 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-simple/sll2c_remove_all.i [2020-12-22 19:34:13,329 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3316e909c/1b3a56063a264571b998f4b46b847fa5/FLAGac57462be [2020-12-22 19:34:13,925 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 19:34:13,925 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-simple/sll2c_remove_all.i [2020-12-22 19:34:13,945 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3316e909c/1b3a56063a264571b998f4b46b847fa5/FLAGac57462be [2020-12-22 19:34:14,330 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3316e909c/1b3a56063a264571b998f4b46b847fa5 [2020-12-22 19:34:14,335 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 19:34:14,337 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 19:34:14,341 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 19:34:14,341 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 19:34:14,346 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 19:34:14,347 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 07:34:14" (1/1) ... [2020-12-22 19:34:14,349 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56e64d13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:34:14, skipping insertion in model container [2020-12-22 19:34:14,349 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 07:34:14" (1/1) ... [2020-12-22 19:34:14,358 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 19:34:14,427 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 19:34:14,724 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-simple/sll2c_remove_all.i[24082,24095] [2020-12-22 19:34:14,729 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 19:34:14,745 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 19:34:14,846 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-simple/sll2c_remove_all.i[24082,24095] [2020-12-22 19:34:14,847 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 19:34:14,944 INFO L208 MainTranslator]: Completed translation [2020-12-22 19:34:14,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:34:14 WrapperNode [2020-12-22 19:34:14,945 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 19:34:14,946 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 19:34:14,947 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 19:34:14,947 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 19:34:14,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:34:14" (1/1) ... [2020-12-22 19:34:15,011 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:34:14" (1/1) ... [2020-12-22 19:34:15,064 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 19:34:15,066 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 19:34:15,067 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 19:34:15,067 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 19:34:15,078 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:34:14" (1/1) ... [2020-12-22 19:34:15,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:34:14" (1/1) ... [2020-12-22 19:34:15,082 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:34:14" (1/1) ... [2020-12-22 19:34:15,083 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:34:14" (1/1) ... [2020-12-22 19:34:15,091 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:34:14" (1/1) ... [2020-12-22 19:34:15,096 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:34:14" (1/1) ... [2020-12-22 19:34:15,098 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:34:14" (1/1) ... [2020-12-22 19:34:15,102 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 19:34:15,103 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 19:34:15,103 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 19:34:15,103 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 19:34:15,104 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:34:14" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 19:34:15,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 19:34:15,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 19:34:15,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 19:34:15,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 19:34:15,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 19:34:15,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 19:34:15,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 19:34:15,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 19:34:15,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 19:34:15,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 19:34:15,948 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 19:34:15,948 INFO L299 CfgBuilder]: Removed 19 assume(true) statements. [2020-12-22 19:34:15,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 07:34:15 BoogieIcfgContainer [2020-12-22 19:34:15,950 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 19:34:15,952 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 19:34:15,952 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 19:34:15,955 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 19:34:15,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 07:34:14" (1/3) ... [2020-12-22 19:34:15,957 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fcb09bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 07:34:15, skipping insertion in model container [2020-12-22 19:34:15,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:34:14" (2/3) ... [2020-12-22 19:34:15,957 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fcb09bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 07:34:15, skipping insertion in model container [2020-12-22 19:34:15,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 07:34:15" (3/3) ... [2020-12-22 19:34:15,959 INFO L111 eAbstractionObserver]: Analyzing ICFG sll2c_remove_all.i [2020-12-22 19:34:15,966 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 19:34:15,971 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 46 error locations. [2020-12-22 19:34:15,990 INFO L253 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2020-12-22 19:34:16,012 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 19:34:16,012 INFO L378 AbstractCegarLoop]: Hoare is false [2020-12-22 19:34:16,013 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 19:34:16,013 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 19:34:16,013 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 19:34:16,013 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 19:34:16,013 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 19:34:16,013 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 19:34:16,032 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states. [2020-12-22 19:34:16,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-22 19:34:16,039 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:34:16,039 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-22 19:34:16,040 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:34:16,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:34:16,046 INFO L82 PathProgramCache]: Analyzing trace with hash 925702, now seen corresponding path program 1 times [2020-12-22 19:34:16,056 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:34:16,056 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880131672] [2020-12-22 19:34:16,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:34:16,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:34:16,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:34:16,237 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880131672] [2020-12-22 19:34:16,238 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:34:16,238 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 19:34:16,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828451346] [2020-12-22 19:34:16,244 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 19:34:16,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:34:16,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 19:34:16,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:34:16,262 INFO L87 Difference]: Start difference. First operand 97 states. Second operand 3 states. [2020-12-22 19:34:16,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:34:16,513 INFO L93 Difference]: Finished difference Result 147 states and 155 transitions. [2020-12-22 19:34:16,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 19:34:16,515 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-12-22 19:34:16,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:34:16,527 INFO L225 Difference]: With dead ends: 147 [2020-12-22 19:34:16,527 INFO L226 Difference]: Without dead ends: 143 [2020-12-22 19:34:16,529 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 [2020-12-22 19:34:16,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2020-12-22 19:34:16,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 89. [2020-12-22 19:34:16,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-12-22 19:34:16,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 92 transitions. [2020-12-22 19:34:16,578 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 92 transitions. Word has length 4 [2020-12-22 19:34:16,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:34:16,579 INFO L481 AbstractCegarLoop]: Abstraction has 89 states and 92 transitions. [2020-12-22 19:34:16,580 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 19:34:16,580 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 92 transitions. [2020-12-22 19:34:16,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-22 19:34:16,580 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:34:16,581 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-22 19:34:16,582 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 19:34:16,583 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:34:16,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:34:16,585 INFO L82 PathProgramCache]: Analyzing trace with hash 925703, now seen corresponding path program 1 times [2020-12-22 19:34:16,585 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:34:16,585 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005925962] [2020-12-22 19:34:16,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:34:16,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:34:16,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:34:16,653 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005925962] [2020-12-22 19:34:16,654 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:34:16,654 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 19:34:16,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19162930] [2020-12-22 19:34:16,656 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 19:34:16,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:34:16,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 19:34:16,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:34:16,658 INFO L87 Difference]: Start difference. First operand 89 states and 92 transitions. Second operand 3 states. [2020-12-22 19:34:16,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:34:16,879 INFO L93 Difference]: Finished difference Result 85 states and 88 transitions. [2020-12-22 19:34:16,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 19:34:16,880 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-12-22 19:34:16,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:34:16,882 INFO L225 Difference]: With dead ends: 85 [2020-12-22 19:34:16,882 INFO L226 Difference]: Without dead ends: 85 [2020-12-22 19:34:16,883 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 [2020-12-22 19:34:16,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-12-22 19:34:16,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-12-22 19:34:16,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-12-22 19:34:16,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 88 transitions. [2020-12-22 19:34:16,904 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 88 transitions. Word has length 4 [2020-12-22 19:34:16,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:34:16,905 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 88 transitions. [2020-12-22 19:34:16,905 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 19:34:16,905 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 88 transitions. [2020-12-22 19:34:16,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-22 19:34:16,906 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:34:16,906 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:34:16,906 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 19:34:16,907 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:34:16,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:34:16,908 INFO L82 PathProgramCache]: Analyzing trace with hash 2097994085, now seen corresponding path program 1 times [2020-12-22 19:34:16,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:34:16,908 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354591025] [2020-12-22 19:34:16,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:34:16,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:34:16,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:34:16,995 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354591025] [2020-12-22 19:34:16,996 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:34:16,996 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 19:34:16,996 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140945901] [2020-12-22 19:34:16,997 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 19:34:16,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:34:17,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 19:34:17,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:34:17,003 INFO L87 Difference]: Start difference. First operand 85 states and 88 transitions. Second operand 3 states. [2020-12-22 19:34:17,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:34:17,034 INFO L93 Difference]: Finished difference Result 95 states and 98 transitions. [2020-12-22 19:34:17,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 19:34:17,038 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-12-22 19:34:17,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:34:17,039 INFO L225 Difference]: With dead ends: 95 [2020-12-22 19:34:17,040 INFO L226 Difference]: Without dead ends: 95 [2020-12-22 19:34:17,040 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:34:17,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-12-22 19:34:17,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 86. [2020-12-22 19:34:17,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-12-22 19:34:17,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 89 transitions. [2020-12-22 19:34:17,061 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 89 transitions. Word has length 9 [2020-12-22 19:34:17,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:34:17,061 INFO L481 AbstractCegarLoop]: Abstraction has 86 states and 89 transitions. [2020-12-22 19:34:17,062 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 19:34:17,062 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 89 transitions. [2020-12-22 19:34:17,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-22 19:34:17,062 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:34:17,063 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:34:17,065 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 19:34:17,065 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:34:17,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:34:17,066 INFO L82 PathProgramCache]: Analyzing trace with hash 231455864, now seen corresponding path program 1 times [2020-12-22 19:34:17,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:34:17,067 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799060038] [2020-12-22 19:34:17,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:34:17,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:34:17,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:34:17,160 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799060038] [2020-12-22 19:34:17,161 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:34:17,161 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 19:34:17,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174325071] [2020-12-22 19:34:17,162 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 19:34:17,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:34:17,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 19:34:17,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 19:34:17,163 INFO L87 Difference]: Start difference. First operand 86 states and 89 transitions. Second operand 5 states. [2020-12-22 19:34:17,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:34:17,532 INFO L93 Difference]: Finished difference Result 144 states and 150 transitions. [2020-12-22 19:34:17,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 19:34:17,533 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-12-22 19:34:17,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:34:17,534 INFO L225 Difference]: With dead ends: 144 [2020-12-22 19:34:17,534 INFO L226 Difference]: Without dead ends: 144 [2020-12-22 19:34:17,535 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 19:34:17,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-12-22 19:34:17,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 85. [2020-12-22 19:34:17,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-12-22 19:34:17,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 88 transitions. [2020-12-22 19:34:17,543 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 88 transitions. Word has length 14 [2020-12-22 19:34:17,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:34:17,543 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 88 transitions. [2020-12-22 19:34:17,544 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 19:34:17,544 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 88 transitions. [2020-12-22 19:34:17,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-22 19:34:17,544 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:34:17,544 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:34:17,545 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 19:34:17,545 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:34:17,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:34:17,546 INFO L82 PathProgramCache]: Analyzing trace with hash 231455865, now seen corresponding path program 1 times [2020-12-22 19:34:17,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:34:17,546 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483145811] [2020-12-22 19:34:17,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:34:17,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:34:17,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:34:17,647 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483145811] [2020-12-22 19:34:17,647 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:34:17,647 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 19:34:17,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300699910] [2020-12-22 19:34:17,651 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 19:34:17,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:34:17,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 19:34:17,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 19:34:17,656 INFO L87 Difference]: Start difference. First operand 85 states and 88 transitions. Second operand 5 states. [2020-12-22 19:34:17,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:34:17,877 INFO L93 Difference]: Finished difference Result 89 states and 92 transitions. [2020-12-22 19:34:17,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 19:34:17,878 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-12-22 19:34:17,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:34:17,879 INFO L225 Difference]: With dead ends: 89 [2020-12-22 19:34:17,879 INFO L226 Difference]: Without dead ends: 89 [2020-12-22 19:34:17,880 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 19:34:17,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-12-22 19:34:17,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 84. [2020-12-22 19:34:17,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-12-22 19:34:17,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 87 transitions. [2020-12-22 19:34:17,886 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 87 transitions. Word has length 14 [2020-12-22 19:34:17,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:34:17,887 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 87 transitions. [2020-12-22 19:34:17,887 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 19:34:17,887 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 87 transitions. [2020-12-22 19:34:17,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-22 19:34:17,888 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:34:17,888 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:34:17,888 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 19:34:17,889 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:34:17,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:34:17,889 INFO L82 PathProgramCache]: Analyzing trace with hash 1879150547, now seen corresponding path program 1 times [2020-12-22 19:34:17,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:34:17,890 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044231407] [2020-12-22 19:34:17,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:34:17,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:34:18,006 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-22 19:34:18,007 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044231407] [2020-12-22 19:34:18,007 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:34:18,007 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 19:34:18,008 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778309179] [2020-12-22 19:34:18,008 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 19:34:18,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:34:18,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 19:34:18,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-22 19:34:18,009 INFO L87 Difference]: Start difference. First operand 84 states and 87 transitions. Second operand 6 states. [2020-12-22 19:34:18,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:34:18,332 INFO L93 Difference]: Finished difference Result 137 states and 143 transitions. [2020-12-22 19:34:18,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 19:34:18,333 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-12-22 19:34:18,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:34:18,334 INFO L225 Difference]: With dead ends: 137 [2020-12-22 19:34:18,334 INFO L226 Difference]: Without dead ends: 137 [2020-12-22 19:34:18,335 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-22 19:34:18,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2020-12-22 19:34:18,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 83. [2020-12-22 19:34:18,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-12-22 19:34:18,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 86 transitions. [2020-12-22 19:34:18,341 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 86 transitions. Word has length 17 [2020-12-22 19:34:18,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:34:18,342 INFO L481 AbstractCegarLoop]: Abstraction has 83 states and 86 transitions. [2020-12-22 19:34:18,342 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 19:34:18,342 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 86 transitions. [2020-12-22 19:34:18,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-22 19:34:18,343 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:34:18,343 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:34:18,343 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 19:34:18,343 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:34:18,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:34:18,344 INFO L82 PathProgramCache]: Analyzing trace with hash 1879150548, now seen corresponding path program 1 times [2020-12-22 19:34:18,344 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:34:18,345 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575068282] [2020-12-22 19:34:18,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:34:18,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:34:18,492 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:34:18,493 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575068282] [2020-12-22 19:34:18,493 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [611282681] [2020-12-22 19:34:18,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:34:18,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:34:18,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 21 conjunts are in the unsatisfiable core [2020-12-22 19:34:18,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:34:18,788 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:34:18,789 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 1 case distinctions, treesize of input 9 treesize of output 25 [2020-12-22 19:34:18,797 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:34:18,841 INFO L625 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2020-12-22 19:34:18,852 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:34:18,853 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:9, output treesize:5 [2020-12-22 19:34:18,971 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:34:18,971 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 [2020-12-22 19:34:18,975 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:34:19,007 INFO L625 ElimStorePlain]: treesize reduction 14, result has 50.0 percent of original size [2020-12-22 19:34:19,012 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 19:34:19,013 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:14 [2020-12-22 19:34:19,078 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-22 19:34:19,078 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 19:34:19,078 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2020-12-22 19:34:19,079 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145864696] [2020-12-22 19:34:19,079 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 19:34:19,079 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:34:19,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 19:34:19,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-12-22 19:34:19,080 INFO L87 Difference]: Start difference. First operand 83 states and 86 transitions. Second operand 7 states. [2020-12-22 19:34:19,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:34:19,268 INFO L93 Difference]: Finished difference Result 82 states and 85 transitions. [2020-12-22 19:34:19,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 19:34:19,273 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2020-12-22 19:34:19,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:34:19,273 INFO L225 Difference]: With dead ends: 82 [2020-12-22 19:34:19,274 INFO L226 Difference]: Without dead ends: 82 [2020-12-22 19:34:19,274 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-12-22 19:34:19,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-12-22 19:34:19,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2020-12-22 19:34:19,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-12-22 19:34:19,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 85 transitions. [2020-12-22 19:34:19,284 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 85 transitions. Word has length 17 [2020-12-22 19:34:19,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:34:19,284 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 85 transitions. [2020-12-22 19:34:19,284 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 19:34:19,285 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 85 transitions. [2020-12-22 19:34:19,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-22 19:34:19,286 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:34:19,286 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:34:19,499 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-12-22 19:34:19,501 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:34:19,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:34:19,502 INFO L82 PathProgramCache]: Analyzing trace with hash 1917500726, now seen corresponding path program 1 times [2020-12-22 19:34:19,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:34:19,503 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285210977] [2020-12-22 19:34:19,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:34:19,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:34:19,630 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-22 19:34:19,630 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285210977] [2020-12-22 19:34:19,631 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:34:19,631 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 19:34:19,631 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581941946] [2020-12-22 19:34:19,632 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 19:34:19,632 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:34:19,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 19:34:19,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 19:34:19,635 INFO L87 Difference]: Start difference. First operand 82 states and 85 transitions. Second operand 5 states. [2020-12-22 19:34:19,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:34:19,910 INFO L93 Difference]: Finished difference Result 124 states and 130 transitions. [2020-12-22 19:34:19,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 19:34:19,911 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-12-22 19:34:19,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:34:19,912 INFO L225 Difference]: With dead ends: 124 [2020-12-22 19:34:19,912 INFO L226 Difference]: Without dead ends: 124 [2020-12-22 19:34:19,912 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 19:34:19,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-12-22 19:34:19,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 80. [2020-12-22 19:34:19,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-12-22 19:34:19,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 86 transitions. [2020-12-22 19:34:19,918 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 86 transitions. Word has length 21 [2020-12-22 19:34:19,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:34:19,918 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 86 transitions. [2020-12-22 19:34:19,919 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 19:34:19,919 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 86 transitions. [2020-12-22 19:34:19,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-22 19:34:19,919 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:34:19,920 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:34:19,920 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 19:34:19,920 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:34:19,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:34:19,921 INFO L82 PathProgramCache]: Analyzing trace with hash 1917500727, now seen corresponding path program 1 times [2020-12-22 19:34:19,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:34:19,921 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064035074] [2020-12-22 19:34:19,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:34:19,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:34:20,045 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:34:20,046 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064035074] [2020-12-22 19:34:20,046 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [108453535] [2020-12-22 19:34:20,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:34:20,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:34:20,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 16 conjunts are in the unsatisfiable core [2020-12-22 19:34:20,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:34:20,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:34:20,214 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2020-12-22 19:34:20,216 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:34:20,233 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:34:20,236 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 19:34:20,236 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:20 [2020-12-22 19:34:20,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:34:20,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:34:20,365 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:34:20,366 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 36 [2020-12-22 19:34:20,371 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:34:20,420 INFO L625 ElimStorePlain]: treesize reduction 14, result has 67.4 percent of original size [2020-12-22 19:34:20,426 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 19:34:20,426 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:30, output treesize:29 [2020-12-22 19:34:20,605 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:34:20,605 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:34:20,605 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2020-12-22 19:34:20,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166334244] [2020-12-22 19:34:20,606 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 19:34:20,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:34:20,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 19:34:20,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-12-22 19:34:20,608 INFO L87 Difference]: Start difference. First operand 80 states and 86 transitions. Second operand 8 states. [2020-12-22 19:34:20,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:34:20,813 INFO L93 Difference]: Finished difference Result 76 states and 79 transitions. [2020-12-22 19:34:20,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 19:34:20,814 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 21 [2020-12-22 19:34:20,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:34:20,815 INFO L225 Difference]: With dead ends: 76 [2020-12-22 19:34:20,815 INFO L226 Difference]: Without dead ends: 76 [2020-12-22 19:34:20,815 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-22 19:34:20,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-12-22 19:34:20,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 71. [2020-12-22 19:34:20,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-12-22 19:34:20,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 75 transitions. [2020-12-22 19:34:20,823 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 75 transitions. Word has length 21 [2020-12-22 19:34:20,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:34:20,823 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 75 transitions. [2020-12-22 19:34:20,823 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 19:34:20,823 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 75 transitions. [2020-12-22 19:34:20,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-22 19:34:20,824 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:34:20,824 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:34:21,040 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:34:21,042 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:34:21,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:34:21,042 INFO L82 PathProgramCache]: Analyzing trace with hash -687019599, now seen corresponding path program 1 times [2020-12-22 19:34:21,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:34:21,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199674609] [2020-12-22 19:34:21,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:34:21,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:34:21,225 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:34:21,227 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199674609] [2020-12-22 19:34:21,228 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:34:21,228 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-22 19:34:21,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069844377] [2020-12-22 19:34:21,229 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-22 19:34:21,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:34:21,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-22 19:34:21,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-12-22 19:34:21,230 INFO L87 Difference]: Start difference. First operand 71 states and 75 transitions. Second operand 10 states. [2020-12-22 19:34:21,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:34:21,929 INFO L93 Difference]: Finished difference Result 112 states and 118 transitions. [2020-12-22 19:34:21,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 19:34:21,933 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2020-12-22 19:34:21,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:34:21,937 INFO L225 Difference]: With dead ends: 112 [2020-12-22 19:34:21,937 INFO L226 Difference]: Without dead ends: 112 [2020-12-22 19:34:21,939 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2020-12-22 19:34:21,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-12-22 19:34:21,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 72. [2020-12-22 19:34:21,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-12-22 19:34:21,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 77 transitions. [2020-12-22 19:34:21,953 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 77 transitions. Word has length 22 [2020-12-22 19:34:21,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:34:21,955 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 77 transitions. [2020-12-22 19:34:21,956 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-22 19:34:21,956 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 77 transitions. [2020-12-22 19:34:21,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-22 19:34:21,957 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:34:21,957 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:34:21,957 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 19:34:21,958 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:34:21,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:34:21,958 INFO L82 PathProgramCache]: Analyzing trace with hash -687019598, now seen corresponding path program 1 times [2020-12-22 19:34:21,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:34:21,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396142140] [2020-12-22 19:34:21,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:34:21,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:34:22,189 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:34:22,193 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396142140] [2020-12-22 19:34:22,194 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:34:22,195 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-22 19:34:22,195 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057560239] [2020-12-22 19:34:22,195 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-22 19:34:22,195 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:34:22,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-22 19:34:22,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-12-22 19:34:22,196 INFO L87 Difference]: Start difference. First operand 72 states and 77 transitions. Second operand 10 states. [2020-12-22 19:34:22,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:34:22,955 INFO L93 Difference]: Finished difference Result 106 states and 112 transitions. [2020-12-22 19:34:22,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-12-22 19:34:22,956 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2020-12-22 19:34:22,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:34:22,957 INFO L225 Difference]: With dead ends: 106 [2020-12-22 19:34:22,957 INFO L226 Difference]: Without dead ends: 106 [2020-12-22 19:34:22,958 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2020-12-22 19:34:22,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-12-22 19:34:22,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 72. [2020-12-22 19:34:22,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-12-22 19:34:22,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 76 transitions. [2020-12-22 19:34:22,961 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 76 transitions. Word has length 22 [2020-12-22 19:34:22,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:34:22,961 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 76 transitions. [2020-12-22 19:34:22,961 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-22 19:34:22,962 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 76 transitions. [2020-12-22 19:34:22,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-22 19:34:22,962 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:34:22,962 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:34:22,963 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 19:34:22,963 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:34:22,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:34:22,963 INFO L82 PathProgramCache]: Analyzing trace with hash 177241924, now seen corresponding path program 1 times [2020-12-22 19:34:22,964 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:34:22,964 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926279213] [2020-12-22 19:34:22,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:34:22,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:34:23,008 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-22 19:34:23,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926279213] [2020-12-22 19:34:23,008 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:34:23,008 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 19:34:23,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116138119] [2020-12-22 19:34:23,009 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 19:34:23,009 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:34:23,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 19:34:23,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 19:34:23,010 INFO L87 Difference]: Start difference. First operand 72 states and 76 transitions. Second operand 4 states. [2020-12-22 19:34:23,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:34:23,027 INFO L93 Difference]: Finished difference Result 107 states and 112 transitions. [2020-12-22 19:34:23,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 19:34:23,028 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2020-12-22 19:34:23,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:34:23,029 INFO L225 Difference]: With dead ends: 107 [2020-12-22 19:34:23,029 INFO L226 Difference]: Without dead ends: 107 [2020-12-22 19:34:23,029 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 19:34:23,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-12-22 19:34:23,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 71. [2020-12-22 19:34:23,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-12-22 19:34:23,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 74 transitions. [2020-12-22 19:34:23,032 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 74 transitions. Word has length 23 [2020-12-22 19:34:23,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:34:23,032 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 74 transitions. [2020-12-22 19:34:23,032 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 19:34:23,033 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 74 transitions. [2020-12-22 19:34:23,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-22 19:34:23,033 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:34:23,033 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:34:23,034 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 19:34:23,034 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:34:23,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:34:23,034 INFO L82 PathProgramCache]: Analyzing trace with hash 2047516256, now seen corresponding path program 1 times [2020-12-22 19:34:23,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:34:23,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502101326] [2020-12-22 19:34:23,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:34:23,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:34:23,154 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:34:23,155 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502101326] [2020-12-22 19:34:23,155 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:34:23,155 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-22 19:34:23,155 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31172896] [2020-12-22 19:34:23,156 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-22 19:34:23,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:34:23,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-22 19:34:23,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-12-22 19:34:23,157 INFO L87 Difference]: Start difference. First operand 71 states and 74 transitions. Second operand 10 states. [2020-12-22 19:34:23,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:34:23,725 INFO L93 Difference]: Finished difference Result 122 states and 128 transitions. [2020-12-22 19:34:23,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-12-22 19:34:23,726 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 27 [2020-12-22 19:34:23,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:34:23,727 INFO L225 Difference]: With dead ends: 122 [2020-12-22 19:34:23,727 INFO L226 Difference]: Without dead ends: 122 [2020-12-22 19:34:23,727 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=139, Invalid=281, Unknown=0, NotChecked=0, Total=420 [2020-12-22 19:34:23,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2020-12-22 19:34:23,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 83. [2020-12-22 19:34:23,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-12-22 19:34:23,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 94 transitions. [2020-12-22 19:34:23,731 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 94 transitions. Word has length 27 [2020-12-22 19:34:23,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:34:23,731 INFO L481 AbstractCegarLoop]: Abstraction has 83 states and 94 transitions. [2020-12-22 19:34:23,731 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-22 19:34:23,731 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 94 transitions. [2020-12-22 19:34:23,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-22 19:34:23,732 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:34:23,732 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:34:23,733 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 19:34:23,733 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:34:23,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:34:23,733 INFO L82 PathProgramCache]: Analyzing trace with hash -951074440, now seen corresponding path program 1 times [2020-12-22 19:34:23,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:34:23,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961203034] [2020-12-22 19:34:23,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:34:23,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:34:23,795 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-22 19:34:23,795 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961203034] [2020-12-22 19:34:23,796 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:34:23,796 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 19:34:23,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850138812] [2020-12-22 19:34:23,796 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 19:34:23,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:34:23,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 19:34:23,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 19:34:23,797 INFO L87 Difference]: Start difference. First operand 83 states and 94 transitions. Second operand 6 states. [2020-12-22 19:34:24,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:34:24,026 INFO L93 Difference]: Finished difference Result 83 states and 94 transitions. [2020-12-22 19:34:24,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 19:34:24,027 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2020-12-22 19:34:24,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:34:24,028 INFO L225 Difference]: With dead ends: 83 [2020-12-22 19:34:24,028 INFO L226 Difference]: Without dead ends: 83 [2020-12-22 19:34:24,029 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-12-22 19:34:24,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-12-22 19:34:24,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 82. [2020-12-22 19:34:24,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-12-22 19:34:24,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 94 transitions. [2020-12-22 19:34:24,032 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 94 transitions. Word has length 28 [2020-12-22 19:34:24,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:34:24,032 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 94 transitions. [2020-12-22 19:34:24,033 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 19:34:24,033 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 94 transitions. [2020-12-22 19:34:24,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-22 19:34:24,033 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:34:24,034 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:34:24,034 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 19:34:24,034 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:34:24,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:34:24,035 INFO L82 PathProgramCache]: Analyzing trace with hash -951074439, now seen corresponding path program 1 times [2020-12-22 19:34:24,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:34:24,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132398108] [2020-12-22 19:34:24,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:34:24,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:34:24,309 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:34:24,309 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132398108] [2020-12-22 19:34:24,310 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:34:24,310 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-22 19:34:24,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390544209] [2020-12-22 19:34:24,310 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 19:34:24,311 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:34:24,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 19:34:24,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2020-12-22 19:34:24,312 INFO L87 Difference]: Start difference. First operand 82 states and 94 transitions. Second operand 12 states. [2020-12-22 19:34:25,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:34:25,464 INFO L93 Difference]: Finished difference Result 134 states and 149 transitions. [2020-12-22 19:34:25,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 19:34:25,465 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 28 [2020-12-22 19:34:25,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:34:25,467 INFO L225 Difference]: With dead ends: 134 [2020-12-22 19:34:25,467 INFO L226 Difference]: Without dead ends: 134 [2020-12-22 19:34:25,474 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=164, Invalid=388, Unknown=0, NotChecked=0, Total=552 [2020-12-22 19:34:25,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-12-22 19:34:25,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 92. [2020-12-22 19:34:25,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-12-22 19:34:25,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 106 transitions. [2020-12-22 19:34:25,478 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 106 transitions. Word has length 28 [2020-12-22 19:34:25,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:34:25,480 INFO L481 AbstractCegarLoop]: Abstraction has 92 states and 106 transitions. [2020-12-22 19:34:25,480 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 19:34:25,480 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 106 transitions. [2020-12-22 19:34:25,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-22 19:34:25,482 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:34:25,482 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:34:25,482 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-22 19:34:25,483 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:34:25,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:34:25,483 INFO L82 PathProgramCache]: Analyzing trace with hash -951505389, now seen corresponding path program 1 times [2020-12-22 19:34:25,484 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:34:25,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259813988] [2020-12-22 19:34:25,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:34:25,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:34:25,650 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:34:25,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259813988] [2020-12-22 19:34:25,651 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:34:25,651 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-22 19:34:25,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472252507] [2020-12-22 19:34:25,652 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-22 19:34:25,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:34:25,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-22 19:34:25,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-12-22 19:34:25,654 INFO L87 Difference]: Start difference. First operand 92 states and 106 transitions. Second operand 10 states. [2020-12-22 19:34:26,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:34:26,227 INFO L93 Difference]: Finished difference Result 114 states and 129 transitions. [2020-12-22 19:34:26,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 19:34:26,228 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 28 [2020-12-22 19:34:26,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:34:26,229 INFO L225 Difference]: With dead ends: 114 [2020-12-22 19:34:26,229 INFO L226 Difference]: Without dead ends: 114 [2020-12-22 19:34:26,230 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=123, Invalid=257, Unknown=0, NotChecked=0, Total=380 [2020-12-22 19:34:26,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-12-22 19:34:26,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 95. [2020-12-22 19:34:26,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-12-22 19:34:26,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 109 transitions. [2020-12-22 19:34:26,233 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 109 transitions. Word has length 28 [2020-12-22 19:34:26,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:34:26,234 INFO L481 AbstractCegarLoop]: Abstraction has 95 states and 109 transitions. [2020-12-22 19:34:26,234 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-22 19:34:26,234 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 109 transitions. [2020-12-22 19:34:26,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-12-22 19:34:26,234 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:34:26,235 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:34:26,235 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-22 19:34:26,235 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:34:26,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:34:26,236 INFO L82 PathProgramCache]: Analyzing trace with hash 568104130, now seen corresponding path program 1 times [2020-12-22 19:34:26,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:34:26,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639091191] [2020-12-22 19:34:26,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:34:26,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:34:26,323 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-22 19:34:26,324 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639091191] [2020-12-22 19:34:26,324 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:34:26,324 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 19:34:26,324 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279495588] [2020-12-22 19:34:26,325 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 19:34:26,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:34:26,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 19:34:26,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 19:34:26,326 INFO L87 Difference]: Start difference. First operand 95 states and 109 transitions. Second operand 5 states. [2020-12-22 19:34:26,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:34:26,521 INFO L93 Difference]: Finished difference Result 94 states and 107 transitions. [2020-12-22 19:34:26,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 19:34:26,524 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2020-12-22 19:34:26,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:34:26,525 INFO L225 Difference]: With dead ends: 94 [2020-12-22 19:34:26,525 INFO L226 Difference]: Without dead ends: 94 [2020-12-22 19:34:26,526 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-22 19:34:26,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-12-22 19:34:26,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2020-12-22 19:34:26,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-12-22 19:34:26,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 107 transitions. [2020-12-22 19:34:26,530 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 107 transitions. Word has length 29 [2020-12-22 19:34:26,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:34:26,530 INFO L481 AbstractCegarLoop]: Abstraction has 94 states and 107 transitions. [2020-12-22 19:34:26,530 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 19:34:26,530 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 107 transitions. [2020-12-22 19:34:26,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-12-22 19:34:26,531 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:34:26,531 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:34:26,531 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-22 19:34:26,531 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:34:26,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:34:26,532 INFO L82 PathProgramCache]: Analyzing trace with hash 431358966, now seen corresponding path program 1 times [2020-12-22 19:34:26,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:34:26,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531700694] [2020-12-22 19:34:26,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:34:26,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:34:26,769 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:34:26,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531700694] [2020-12-22 19:34:26,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1862209289] [2020-12-22 19:34:26,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:34:26,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:34:26,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-22 19:34:26,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:34:27,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:34:27,111 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 0 case distinctions, treesize of input 12 treesize of output 14 [2020-12-22 19:34:27,113 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:34:27,122 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:34:27,124 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 19:34:27,125 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:16 [2020-12-22 19:34:27,173 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-22 19:34:27,173 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 19:34:27,173 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [13] total 18 [2020-12-22 19:34:27,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124527663] [2020-12-22 19:34:27,174 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 19:34:27,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:34:27,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 19:34:27,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2020-12-22 19:34:27,175 INFO L87 Difference]: Start difference. First operand 94 states and 107 transitions. Second operand 7 states. [2020-12-22 19:34:27,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:34:27,512 INFO L93 Difference]: Finished difference Result 100 states and 113 transitions. [2020-12-22 19:34:27,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 19:34:27,513 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 30 [2020-12-22 19:34:27,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:34:27,513 INFO L225 Difference]: With dead ends: 100 [2020-12-22 19:34:27,513 INFO L226 Difference]: Without dead ends: 100 [2020-12-22 19:34:27,514 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=74, Invalid=432, Unknown=0, NotChecked=0, Total=506 [2020-12-22 19:34:27,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-12-22 19:34:27,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 93. [2020-12-22 19:34:27,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-12-22 19:34:27,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 105 transitions. [2020-12-22 19:34:27,517 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 105 transitions. Word has length 30 [2020-12-22 19:34:27,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:34:27,517 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 105 transitions. [2020-12-22 19:34:27,517 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 19:34:27,517 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 105 transitions. [2020-12-22 19:34:27,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-22 19:34:27,518 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:34:27,518 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:34:27,726 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2020-12-22 19:34:27,727 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:34:27,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:34:27,728 INFO L82 PathProgramCache]: Analyzing trace with hash -1705084994, now seen corresponding path program 1 times [2020-12-22 19:34:27,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:34:27,729 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993405932] [2020-12-22 19:34:27,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:34:27,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:34:27,971 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-22 19:34:27,972 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993405932] [2020-12-22 19:34:27,974 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:34:27,974 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-22 19:34:27,975 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742709676] [2020-12-22 19:34:27,976 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 19:34:27,976 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:34:27,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 19:34:27,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2020-12-22 19:34:27,977 INFO L87 Difference]: Start difference. First operand 93 states and 105 transitions. Second operand 11 states. [2020-12-22 19:34:28,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:34:28,560 INFO L93 Difference]: Finished difference Result 98 states and 108 transitions. [2020-12-22 19:34:28,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-22 19:34:28,561 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 33 [2020-12-22 19:34:28,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:34:28,562 INFO L225 Difference]: With dead ends: 98 [2020-12-22 19:34:28,562 INFO L226 Difference]: Without dead ends: 98 [2020-12-22 19:34:28,563 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2020-12-22 19:34:28,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-12-22 19:34:28,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 94. [2020-12-22 19:34:28,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-12-22 19:34:28,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 105 transitions. [2020-12-22 19:34:28,566 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 105 transitions. Word has length 33 [2020-12-22 19:34:28,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:34:28,566 INFO L481 AbstractCegarLoop]: Abstraction has 94 states and 105 transitions. [2020-12-22 19:34:28,566 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 19:34:28,566 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 105 transitions. [2020-12-22 19:34:28,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-22 19:34:28,567 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:34:28,567 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:34:28,567 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-22 19:34:28,567 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:34:28,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:34:28,568 INFO L82 PathProgramCache]: Analyzing trace with hash -1705032379, now seen corresponding path program 1 times [2020-12-22 19:34:28,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:34:28,568 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192483251] [2020-12-22 19:34:28,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:34:28,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:34:29,059 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:34:29,059 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192483251] [2020-12-22 19:34:29,059 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1812319110] [2020-12-22 19:34:29,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:34:29,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:34:29,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 83 conjunts are in the unsatisfiable core [2020-12-22 19:34:29,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:34:29,278 INFO L443 ElimStorePlain]: Different costs {0=[|v_#length_51|], 3=[|v_#valid_61|]} [2020-12-22 19:34:29,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:34:29,288 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2020-12-22 19:34:29,289 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:34:29,310 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:34:29,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:34:29,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:34:29,323 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 0 case distinctions, treesize of input 15 treesize of output 14 [2020-12-22 19:34:29,325 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:34:29,345 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:34:29,346 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:34:29,346 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:33, output treesize:27 [2020-12-22 19:34:29,662 INFO L443 ElimStorePlain]: Different costs {1=[|v_#length_52|], 3=[|v_#valid_62|]} [2020-12-22 19:34:29,677 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:34:29,677 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2020-12-22 19:34:29,679 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:34:29,712 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:34:29,761 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:34:29,761 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 17 treesize of output 50 [2020-12-22 19:34:29,766 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:34:29,863 INFO L625 ElimStorePlain]: treesize reduction 28, result has 55.6 percent of original size [2020-12-22 19:34:29,865 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:34:29,865 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:42, output treesize:35 [2020-12-22 19:34:30,306 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 [2020-12-22 19:34:30,308 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:34:30,339 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:34:30,340 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:34:30,340 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:46, output treesize:42 [2020-12-22 19:34:30,591 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:34:30,609 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:34:30,610 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 43 [2020-12-22 19:34:30,614 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 1] term [2020-12-22 19:34:30,614 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:34:30,619 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-12-22 19:34:30,691 INFO L625 ElimStorePlain]: treesize reduction 26, result has 67.5 percent of original size [2020-12-22 19:34:30,693 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. [2020-12-22 19:34:30,693 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:62, output treesize:54 [2020-12-22 19:34:31,548 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 78 treesize of output 54 [2020-12-22 19:34:31,551 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:34:31,586 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:34:31,592 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 19:34:31,592 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:105, output treesize:78 [2020-12-22 19:34:31,903 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:34:31,904 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:34:31,926 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:34:31,926 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 5 new quantified variables, introduced 3 case distinctions, treesize of input 65 treesize of output 51 [2020-12-22 19:34:31,929 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:34:31,934 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:34:31,935 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 19:34:31,991 INFO L625 ElimStorePlain]: treesize reduction 4, result has 90.0 percent of original size [2020-12-22 19:34:32,000 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. [2020-12-22 19:34:32,000 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:82, output treesize:24 [2020-12-22 19:34:32,202 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:34:32,202 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:34:32,202 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 20] total 37 [2020-12-22 19:34:32,202 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256593277] [2020-12-22 19:34:32,203 INFO L461 AbstractCegarLoop]: Interpolant automaton has 38 states [2020-12-22 19:34:32,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:34:32,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2020-12-22 19:34:32,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=1305, Unknown=0, NotChecked=0, Total=1406 [2020-12-22 19:34:32,204 INFO L87 Difference]: Start difference. First operand 94 states and 105 transitions. Second operand 38 states. [2020-12-22 19:34:32,700 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-12-22 19:34:32,903 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2020-12-22 19:34:33,262 WARN L197 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2020-12-22 19:34:33,568 WARN L197 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2020-12-22 19:34:33,918 WARN L197 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2020-12-22 19:34:34,123 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2020-12-22 19:34:34,624 WARN L197 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2020-12-22 19:34:35,128 WARN L197 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2020-12-22 19:34:35,808 WARN L197 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 97 [2020-12-22 19:34:36,713 WARN L197 SmtUtils]: Spent 784.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 121 [2020-12-22 19:34:37,659 WARN L197 SmtUtils]: Spent 846.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 127 [2020-12-22 19:34:38,769 WARN L197 SmtUtils]: Spent 891.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 136 [2020-12-22 19:34:39,855 WARN L197 SmtUtils]: Spent 936.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 136 [2020-12-22 19:34:41,125 WARN L197 SmtUtils]: Spent 948.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 139 [2020-12-22 19:34:42,086 WARN L197 SmtUtils]: Spent 838.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 124 [2020-12-22 19:34:42,527 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 33 [2020-12-22 19:34:42,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:34:42,963 INFO L93 Difference]: Finished difference Result 155 states and 170 transitions. [2020-12-22 19:34:42,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-12-22 19:34:42,964 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 33 [2020-12-22 19:34:42,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:34:42,965 INFO L225 Difference]: With dead ends: 155 [2020-12-22 19:34:42,965 INFO L226 Difference]: Without dead ends: 155 [2020-12-22 19:34:42,967 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 527 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=480, Invalid=2712, Unknown=0, NotChecked=0, Total=3192 [2020-12-22 19:34:42,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2020-12-22 19:34:42,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 119. [2020-12-22 19:34:42,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-12-22 19:34:42,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 133 transitions. [2020-12-22 19:34:42,971 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 133 transitions. Word has length 33 [2020-12-22 19:34:42,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:34:42,971 INFO L481 AbstractCegarLoop]: Abstraction has 119 states and 133 transitions. [2020-12-22 19:34:42,972 INFO L482 AbstractCegarLoop]: Interpolant automaton has 38 states. [2020-12-22 19:34:42,972 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 133 transitions. [2020-12-22 19:34:42,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-22 19:34:42,972 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:34:42,972 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:34:43,187 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:34:43,188 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:34:43,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:34:43,189 INFO L82 PathProgramCache]: Analyzing trace with hash -1705032378, now seen corresponding path program 1 times [2020-12-22 19:34:43,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:34:43,190 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366217675] [2020-12-22 19:34:43,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:34:43,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:34:43,910 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:34:43,910 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366217675] [2020-12-22 19:34:43,911 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1151318295] [2020-12-22 19:34:43,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:34:44,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:34:44,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 81 conjunts are in the unsatisfiable core [2020-12-22 19:34:44,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:34:44,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:34:44,141 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 9 treesize of output 11 [2020-12-22 19:34:44,142 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:34:44,182 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:34:44,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:34:44,195 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2020-12-22 19:34:44,196 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:34:44,225 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:34:44,226 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:34:44,227 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:31, output treesize:33 [2020-12-22 19:34:44,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:34:44,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:34:44,672 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:34:44,672 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 18 [2020-12-22 19:34:44,675 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:34:44,680 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:34:44,716 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:34:44,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:34:44,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:34:44,732 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2020-12-22 19:34:44,734 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:34:44,769 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:34:44,771 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:34:44,771 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:54, output treesize:42 [2020-12-22 19:34:45,148 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 [2020-12-22 19:34:45,150 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:34:45,198 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:34:45,208 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 [2020-12-22 19:34:45,209 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:34:45,258 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:34:45,260 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:34:45,260 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:61, output treesize:54 [2020-12-22 19:34:45,569 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:34:45,570 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 65 treesize of output 67 [2020-12-22 19:34:45,574 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 3, 2, 1] term [2020-12-22 19:34:45,574 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:34:45,577 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:34:45,618 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:34:45,627 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 34 treesize of output 25 [2020-12-22 19:34:45,631 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:34:45,670 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:34:45,672 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 19:34:45,673 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:97, output treesize:81 [2020-12-22 19:34:46,760 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:34:46,760 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 5 new quantified variables, introduced 3 case distinctions, treesize of input 179 treesize of output 125 [2020-12-22 19:34:46,765 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:34:46,769 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 19:34:46,804 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:34:46,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:34:46,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:34:46,814 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 16 [2020-12-22 19:34:46,816 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:34:46,844 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:34:46,847 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. [2020-12-22 19:34:46,847 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:184, output treesize:36 [2020-12-22 19:34:47,095 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:34:47,096 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:34:47,096 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2020-12-22 19:34:47,096 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046650493] [2020-12-22 19:34:47,096 INFO L461 AbstractCegarLoop]: Interpolant automaton has 37 states [2020-12-22 19:34:47,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:34:47,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2020-12-22 19:34:47,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=1240, Unknown=0, NotChecked=0, Total=1332 [2020-12-22 19:34:47,098 INFO L87 Difference]: Start difference. First operand 119 states and 133 transitions. Second operand 37 states. [2020-12-22 19:34:47,744 WARN L197 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2020-12-22 19:34:48,031 WARN L197 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2020-12-22 19:34:48,529 WARN L197 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2020-12-22 19:34:48,901 WARN L197 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2020-12-22 19:34:49,412 WARN L197 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2020-12-22 19:34:49,671 WARN L197 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-12-22 19:34:49,896 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-12-22 19:34:50,382 WARN L197 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 80 [2020-12-22 19:34:51,088 WARN L197 SmtUtils]: Spent 589.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 106 [2020-12-22 19:34:52,052 WARN L197 SmtUtils]: Spent 823.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 134 [2020-12-22 19:34:53,342 WARN L197 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 173 DAG size of output: 167 [2020-12-22 19:34:54,669 WARN L197 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 184 DAG size of output: 173 [2020-12-22 19:34:56,190 WARN L197 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 179 DAG size of output: 173 [2020-12-22 19:34:57,598 WARN L197 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 179 DAG size of output: 173 [2020-12-22 19:34:58,720 WARN L197 SmtUtils]: Spent 872.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 149 [2020-12-22 19:34:59,227 WARN L197 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2020-12-22 19:35:00,816 WARN L197 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 196 DAG size of output: 190 [2020-12-22 19:35:02,301 WARN L197 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 190 DAG size of output: 184 [2020-12-22 19:35:04,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:35:04,115 INFO L93 Difference]: Finished difference Result 215 states and 234 transitions. [2020-12-22 19:35:04,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-12-22 19:35:04,116 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 33 [2020-12-22 19:35:04,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:35:04,118 INFO L225 Difference]: With dead ends: 215 [2020-12-22 19:35:04,118 INFO L226 Difference]: Without dead ends: 215 [2020-12-22 19:35:04,120 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 613 ImplicationChecksByTransitivity, 16.6s TimeCoverageRelationStatistics Valid=522, Invalid=2900, Unknown=0, NotChecked=0, Total=3422 [2020-12-22 19:35:04,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2020-12-22 19:35:04,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 122. [2020-12-22 19:35:04,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-12-22 19:35:04,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 136 transitions. [2020-12-22 19:35:04,124 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 136 transitions. Word has length 33 [2020-12-22 19:35:04,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:35:04,124 INFO L481 AbstractCegarLoop]: Abstraction has 122 states and 136 transitions. [2020-12-22 19:35:04,125 INFO L482 AbstractCegarLoop]: Interpolant automaton has 37 states. [2020-12-22 19:35:04,125 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 136 transitions. [2020-12-22 19:35:04,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-22 19:35:04,125 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:35:04,125 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:35:04,338 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2020-12-22 19:35:04,339 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:35:04,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:35:04,340 INFO L82 PathProgramCache]: Analyzing trace with hash 72908500, now seen corresponding path program 1 times [2020-12-22 19:35:04,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:35:04,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409303987] [2020-12-22 19:35:04,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:35:04,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:35:04,407 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-22 19:35:04,407 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409303987] [2020-12-22 19:35:04,407 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1547290371] [2020-12-22 19:35:04,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:35:04,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:35:04,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 12 conjunts are in the unsatisfiable core [2020-12-22 19:35:04,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:35:04,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:35:04,591 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 9 treesize of output 11 [2020-12-22 19:35:04,593 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:35:04,610 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:35:04,613 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 19:35:04,613 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:16, output treesize:17 [2020-12-22 19:35:04,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:35:04,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:35:04,707 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:35:04,707 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 36 [2020-12-22 19:35:04,709 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:35:04,761 INFO L625 ElimStorePlain]: treesize reduction 14, result has 64.1 percent of original size [2020-12-22 19:35:04,763 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 19:35:04,763 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:25 [2020-12-22 19:35:04,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:35:04,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:35:04,924 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:35:04,925 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 36 [2020-12-22 19:35:04,927 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:35:04,976 INFO L625 ElimStorePlain]: treesize reduction 10, result has 75.0 percent of original size [2020-12-22 19:35:04,978 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:35:04,979 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:35:04,980 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:35:04,982 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 19:35:04,982 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:27, output treesize:30 [2020-12-22 19:35:04,984 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:35:04,985 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:35:04,986 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:35:05,022 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:35:05,023 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:35:05,024 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:35:05,061 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:35:05,063 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:35:05,064 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:35:05,099 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:35:05,100 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:35:05,101 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:35:05,159 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-22 19:35:05,159 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:35:05,159 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8 [2020-12-22 19:35:05,160 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716711662] [2020-12-22 19:35:05,160 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 19:35:05,160 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:35:05,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 19:35:05,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-12-22 19:35:05,161 INFO L87 Difference]: Start difference. First operand 122 states and 136 transitions. Second operand 9 states. [2020-12-22 19:35:05,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:35:05,873 INFO L93 Difference]: Finished difference Result 179 states and 197 transitions. [2020-12-22 19:35:05,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 19:35:05,878 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 33 [2020-12-22 19:35:05,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:35:05,879 INFO L225 Difference]: With dead ends: 179 [2020-12-22 19:35:05,880 INFO L226 Difference]: Without dead ends: 179 [2020-12-22 19:35:05,880 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 26 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-12-22 19:35:05,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2020-12-22 19:35:05,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 120. [2020-12-22 19:35:05,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-12-22 19:35:05,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 133 transitions. [2020-12-22 19:35:05,884 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 133 transitions. Word has length 33 [2020-12-22 19:35:05,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:35:05,884 INFO L481 AbstractCegarLoop]: Abstraction has 120 states and 133 transitions. [2020-12-22 19:35:05,884 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 19:35:05,884 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 133 transitions. [2020-12-22 19:35:05,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-12-22 19:35:05,885 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:35:05,885 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:35:06,094 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:35:06,095 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:35:06,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:35:06,096 INFO L82 PathProgramCache]: Analyzing trace with hash -2034803757, now seen corresponding path program 1 times [2020-12-22 19:35:06,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:35:06,097 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099434394] [2020-12-22 19:35:06,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:35:06,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:35:07,095 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:35:07,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099434394] [2020-12-22 19:35:07,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [202916095] [2020-12-22 19:35:07,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:35:07,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:35:07,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 63 conjunts are in the unsatisfiable core [2020-12-22 19:35:07,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:35:07,562 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:35:07,563 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2020-12-22 19:35:07,565 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:35:07,567 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:35:07,570 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:35:07,582 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:35:07,583 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:35:07,583 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:14 [2020-12-22 19:35:07,918 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2020-12-22 19:35:07,919 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:35:07,934 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:35:07,936 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. [2020-12-22 19:35:07,936 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:21 [2020-12-22 19:35:08,157 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:35:08,158 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 46 [2020-12-22 19:35:08,160 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 3, 2, 1] term [2020-12-22 19:35:08,161 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:35:08,161 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:35:08,180 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:35:08,182 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 19:35:08,183 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:37, output treesize:29 [2020-12-22 19:35:09,613 WARN L197 SmtUtils]: Spent 727.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2020-12-22 19:35:10,485 WARN L197 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2020-12-22 19:35:10,577 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:35:10,578 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 58 treesize of output 107 [2020-12-22 19:35:10,582 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-22 19:35:10,583 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:35:10,589 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:35:10,649 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:35:10,651 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:35:10,651 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:35:10,653 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:35:10,655 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:35:10,655 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:73, output treesize:125 [2020-12-22 19:35:10,947 WARN L197 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 30 [2020-12-22 19:35:11,072 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:35:11,080 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 [2020-12-22 19:35:11,081 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:35:11,087 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 [2020-12-22 19:35:11,088 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:35:11,109 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:35:11,111 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-12-22 19:35:11,111 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:37, output treesize:15 [2020-12-22 19:35:11,237 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:35:11,238 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:35:11,238 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 22] total 40 [2020-12-22 19:35:11,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633133903] [2020-12-22 19:35:11,238 INFO L461 AbstractCegarLoop]: Interpolant automaton has 40 states [2020-12-22 19:35:11,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:35:11,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2020-12-22 19:35:11,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=1425, Unknown=0, NotChecked=0, Total=1560 [2020-12-22 19:35:11,240 INFO L87 Difference]: Start difference. First operand 120 states and 133 transitions. Second operand 40 states. [2020-12-22 19:35:11,972 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 27 [2020-12-22 19:35:12,163 WARN L197 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2020-12-22 19:35:12,386 WARN L197 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 40 [2020-12-22 19:35:13,850 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-12-22 19:35:14,107 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2020-12-22 19:35:14,352 WARN L197 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-12-22 19:35:14,632 WARN L197 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 75 [2020-12-22 19:35:14,925 WARN L197 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 79 [2020-12-22 19:35:15,212 WARN L197 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 75 [2020-12-22 19:35:15,677 WARN L197 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 92 [2020-12-22 19:35:16,049 WARN L197 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 78 [2020-12-22 19:35:16,390 WARN L197 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 81 [2020-12-22 19:35:17,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:35:17,028 INFO L93 Difference]: Finished difference Result 153 states and 167 transitions. [2020-12-22 19:35:17,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-12-22 19:35:17,029 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 34 [2020-12-22 19:35:17,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:35:17,031 INFO L225 Difference]: With dead ends: 153 [2020-12-22 19:35:17,031 INFO L226 Difference]: Without dead ends: 151 [2020-12-22 19:35:17,032 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 443 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=540, Invalid=2882, Unknown=0, NotChecked=0, Total=3422 [2020-12-22 19:35:17,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2020-12-22 19:35:17,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 120. [2020-12-22 19:35:17,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-12-22 19:35:17,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 132 transitions. [2020-12-22 19:35:17,036 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 132 transitions. Word has length 34 [2020-12-22 19:35:17,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:35:17,036 INFO L481 AbstractCegarLoop]: Abstraction has 120 states and 132 transitions. [2020-12-22 19:35:17,036 INFO L482 AbstractCegarLoop]: Interpolant automaton has 40 states. [2020-12-22 19:35:17,036 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 132 transitions. [2020-12-22 19:35:17,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-12-22 19:35:17,037 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:35:17,037 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:35:17,251 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:35:17,252 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:35:17,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:35:17,253 INFO L82 PathProgramCache]: Analyzing trace with hash 1096436753, now seen corresponding path program 1 times [2020-12-22 19:35:17,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:35:17,253 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160231266] [2020-12-22 19:35:17,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:35:17,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:35:18,021 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:35:18,022 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160231266] [2020-12-22 19:35:18,022 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [283307175] [2020-12-22 19:35:18,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:35:18,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:35:18,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 59 conjunts are in the unsatisfiable core [2020-12-22 19:35:18,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:35:18,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:35:18,336 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2020-12-22 19:35:18,337 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:35:18,357 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:35:18,359 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 19:35:18,359 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:20 [2020-12-22 19:35:18,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:35:18,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:35:18,518 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:35:18,519 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 36 [2020-12-22 19:35:18,522 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:35:18,591 INFO L625 ElimStorePlain]: treesize reduction 14, result has 69.6 percent of original size [2020-12-22 19:35:18,593 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 19:35:18,594 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:33, output treesize:32 [2020-12-22 19:35:20,014 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 23 treesize of output 15 [2020-12-22 19:35:20,016 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:35:20,046 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:35:20,047 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. [2020-12-22 19:35:20,048 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:62, output treesize:51 [2020-12-22 19:35:20,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:35:20,775 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:35:20,776 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 18 treesize of output 28 [2020-12-22 19:35:20,778 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:35:20,779 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:35:20,782 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-12-22 19:35:20,881 INFO L625 ElimStorePlain]: treesize reduction 5, result has 92.9 percent of original size [2020-12-22 19:35:20,884 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:35:20,886 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:35:20,888 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 19:35:20,888 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:51 [2020-12-22 19:35:21,330 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:35:21,331 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:35:21,332 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:35:21,333 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:35:21,355 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:35:21,472 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 30 [2020-12-22 19:35:21,472 INFO L348 Elim1Store]: treesize reduction 24, result has 68.0 percent of original size [2020-12-22 19:35:21,473 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 64 treesize of output 76 [2020-12-22 19:35:21,477 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-22 19:35:21,477 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:35:21,479 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:35:21,480 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-22 19:35:21,480 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-22 19:35:21,481 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:35:21,482 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:35:21,483 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:35:21,485 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-22 19:35:21,485 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:35:21,487 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:35:21,488 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:35:21,489 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-12-22 19:35:21,490 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:35:21,490 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-22 19:35:21,493 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:35:21,494 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-22 19:35:21,495 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:35:21,496 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:35:21,497 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:35:21,498 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-12-22 19:35:21,500 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:35:21,501 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:35:21,502 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-22 19:35:21,506 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:35:21,507 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:35:21,508 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 19:35:21,511 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:35:21,512 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:35:21,513 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-22 19:35:21,515 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:35:21,516 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-22 19:35:21,516 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:35:21,517 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:35:21,518 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:35:21,519 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-12-22 19:35:21,520 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:35:21,522 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:35:21,523 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 19:35:21,526 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:35:21,527 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:35:21,528 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:35:21,531 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:35:21,532 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:35:21,533 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 19:35:21,536 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-22 19:35:21,537 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:35:21,538 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:35:21,540 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-22 19:35:21,540 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-22 19:35:21,541 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:35:21,542 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:35:21,543 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:35:21,544 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-22 19:35:21,545 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:35:21,546 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:35:21,548 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:35:21,549 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-12-22 19:35:21,550 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:35:21,550 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-22 19:35:21,553 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:35:21,554 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-22 19:35:21,555 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:35:21,556 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:35:21,557 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:35:21,558 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-12-22 19:35:21,559 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:35:21,560 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:35:21,561 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-22 19:35:21,565 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:35:21,566 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:35:21,567 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 19:35:21,570 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:35:21,571 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:35:21,572 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-22 19:35:21,575 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:35:21,576 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-22 19:35:21,576 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:35:21,577 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:35:21,578 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:35:21,579 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-12-22 19:35:21,581 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:35:21,582 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:35:21,583 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 19:35:21,585 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:35:21,586 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:35:21,587 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:35:21,590 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:35:21,591 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:35:21,592 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 19:35:21,594 INFO L547 ElimStorePlain]: Start of recursive call 2: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 19:35:21,648 INFO L348 Elim1Store]: treesize reduction 24, result has 45.5 percent of original size [2020-12-22 19:35:21,648 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 49 [2020-12-22 19:35:21,651 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-22 19:35:21,653 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-22 19:35:21,654 INFO L547 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 19:35:21,803 WARN L197 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 35 [2020-12-22 19:35:21,804 INFO L625 ElimStorePlain]: treesize reduction 68, result has 59.8 percent of original size [2020-12-22 19:35:21,809 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 6 dim-0 vars, and 2 xjuncts. [2020-12-22 19:35:21,809 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:128, output treesize:106 [2020-12-22 19:35:22,023 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 [2020-12-22 19:35:22,025 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:35:22,032 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:35:22,033 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:35:22,033 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:22, output treesize:7 [2020-12-22 19:35:22,099 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:35:22,099 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:35:22,099 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 40 [2020-12-22 19:35:22,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964974039] [2020-12-22 19:35:22,100 INFO L461 AbstractCegarLoop]: Interpolant automaton has 41 states [2020-12-22 19:35:22,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:35:22,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2020-12-22 19:35:22,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1527, Unknown=0, NotChecked=0, Total=1640 [2020-12-22 19:35:22,101 INFO L87 Difference]: Start difference. First operand 120 states and 132 transitions. Second operand 41 states. [2020-12-22 19:35:22,790 WARN L197 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 42 [2020-12-22 19:35:23,000 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 37 [2020-12-22 19:35:23,356 WARN L197 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2020-12-22 19:35:23,625 WARN L197 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2020-12-22 19:35:23,912 WARN L197 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2020-12-22 19:35:24,185 WARN L197 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2020-12-22 19:35:24,432 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2020-12-22 19:35:24,801 WARN L197 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2020-12-22 19:35:25,333 WARN L197 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 77 [2020-12-22 19:35:25,861 WARN L197 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 95 [2020-12-22 19:35:26,063 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2020-12-22 19:35:26,583 WARN L197 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 99 [2020-12-22 19:35:27,159 WARN L197 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 103 [2020-12-22 19:35:27,704 WARN L197 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 99 [2020-12-22 19:35:28,393 WARN L197 SmtUtils]: Spent 483.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 109 [2020-12-22 19:35:28,596 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 40 [2020-12-22 19:35:29,218 WARN L197 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 109 [2020-12-22 19:35:29,417 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2020-12-22 19:35:29,726 WARN L197 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2020-12-22 19:35:30,072 WARN L197 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2020-12-22 19:35:30,444 WARN L197 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2020-12-22 19:35:31,073 WARN L197 SmtUtils]: Spent 532.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 116 [2020-12-22 19:35:31,416 WARN L197 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2020-12-22 19:35:31,982 WARN L197 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 107 [2020-12-22 19:35:32,606 WARN L197 SmtUtils]: Spent 498.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 113 [2020-12-22 19:35:33,036 WARN L197 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2020-12-22 19:35:33,472 WARN L197 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2020-12-22 19:35:33,927 WARN L197 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2020-12-22 19:35:34,433 WARN L197 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2020-12-22 19:35:34,776 WARN L197 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2020-12-22 19:35:35,422 WARN L197 SmtUtils]: Spent 450.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 107 [2020-12-22 19:35:35,750 WARN L197 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 51 [2020-12-22 19:35:36,219 WARN L197 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2020-12-22 19:35:36,611 WARN L197 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 63 [2020-12-22 19:35:36,993 WARN L197 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2020-12-22 19:35:37,257 WARN L197 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2020-12-22 19:35:38,030 WARN L197 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2020-12-22 19:35:38,357 WARN L197 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2020-12-22 19:35:38,730 WARN L197 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 63 [2020-12-22 19:35:39,180 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 42 [2020-12-22 19:35:39,472 WARN L197 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 59 [2020-12-22 19:35:40,253 WARN L197 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2020-12-22 19:35:40,564 WARN L197 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 65 [2020-12-22 19:35:40,926 WARN L197 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 65 [2020-12-22 19:35:41,490 WARN L197 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 69 [2020-12-22 19:35:41,887 WARN L197 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 67 [2020-12-22 19:35:42,087 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2020-12-22 19:35:42,466 WARN L197 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2020-12-22 19:35:42,883 WARN L197 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2020-12-22 19:35:43,259 WARN L197 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2020-12-22 19:35:43,596 WARN L197 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 67 [2020-12-22 19:35:43,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:35:43,823 INFO L93 Difference]: Finished difference Result 223 states and 236 transitions. [2020-12-22 19:35:43,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2020-12-22 19:35:43,824 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 38 [2020-12-22 19:35:43,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:35:43,825 INFO L225 Difference]: With dead ends: 223 [2020-12-22 19:35:43,826 INFO L226 Difference]: Without dead ends: 223 [2020-12-22 19:35:43,829 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 16 SyntacticMatches, 3 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2057 ImplicationChecksByTransitivity, 21.4s TimeCoverageRelationStatistics Valid=1724, Invalid=7978, Unknown=0, NotChecked=0, Total=9702 [2020-12-22 19:35:43,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2020-12-22 19:35:43,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 134. [2020-12-22 19:35:43,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-12-22 19:35:43,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 152 transitions. [2020-12-22 19:35:43,834 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 152 transitions. Word has length 38 [2020-12-22 19:35:43,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:35:43,834 INFO L481 AbstractCegarLoop]: Abstraction has 134 states and 152 transitions. [2020-12-22 19:35:43,834 INFO L482 AbstractCegarLoop]: Interpolant automaton has 41 states. [2020-12-22 19:35:43,834 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 152 transitions. [2020-12-22 19:35:43,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-12-22 19:35:43,835 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:35:43,835 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:35:44,039 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2020-12-22 19:35:44,040 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:35:44,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:35:44,041 INFO L82 PathProgramCache]: Analyzing trace with hash 1096489368, now seen corresponding path program 2 times [2020-12-22 19:35:44,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:35:44,042 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602696026] [2020-12-22 19:35:44,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:35:44,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:35:44,775 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:35:44,775 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602696026] [2020-12-22 19:35:44,775 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1585360322] [2020-12-22 19:35:44,775 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-12-22 19:35:44,965 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-22 19:35:44,966 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 19:35:44,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 104 conjunts are in the unsatisfiable core [2020-12-22 19:35:44,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:35:45,270 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-22 19:35:45,272 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:35:45,301 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:35:45,302 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:35:45,302 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:25, output treesize:24 [2020-12-22 19:35:45,630 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-22 19:35:45,631 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:35:45,662 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:35:45,670 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-22 19:35:45,671 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:35:45,701 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:35:45,702 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:35:45,702 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:40, output treesize:32 [2020-12-22 19:35:45,980 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:35:45,981 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 79 [2020-12-22 19:35:45,983 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 3, 2, 1] term [2020-12-22 19:35:45,983 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:35:45,985 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-12-22 19:35:46,071 INFO L625 ElimStorePlain]: treesize reduction 71, result has 50.7 percent of original size [2020-12-22 19:35:46,079 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:35:46,104 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:35:46,105 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 54 [2020-12-22 19:35:46,107 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 1] term [2020-12-22 19:35:46,108 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:35:46,109 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2020-12-22 19:35:46,188 INFO L625 ElimStorePlain]: treesize reduction 37, result has 63.7 percent of original size [2020-12-22 19:35:46,190 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:35:46,190 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:81, output treesize:65 [2020-12-22 19:35:47,870 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-22 19:35:48,221 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2020-12-22 19:35:48,222 INFO L348 Elim1Store]: treesize reduction 16, result has 84.8 percent of original size [2020-12-22 19:35:48,222 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 6 new quantified variables, introduced 6 case distinctions, treesize of input 150 treesize of output 156 [2020-12-22 19:35:48,226 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:35:48,286 INFO L625 ElimStorePlain]: treesize reduction 12, result has 86.2 percent of original size [2020-12-22 19:35:48,287 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. [2020-12-22 19:35:48,288 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:172, output treesize:75 [2020-12-22 19:35:48,599 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:35:48,623 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:35:48,624 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 5 new quantified variables, introduced 3 case distinctions, treesize of input 73 treesize of output 51 [2020-12-22 19:35:48,628 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 19:35:48,647 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:35:48,653 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. [2020-12-22 19:35:48,653 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:79, output treesize:15 [2020-12-22 19:35:48,907 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:35:48,908 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:35:48,908 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 25] total 45 [2020-12-22 19:35:48,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040927006] [2020-12-22 19:35:48,909 INFO L461 AbstractCegarLoop]: Interpolant automaton has 46 states [2020-12-22 19:35:48,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:35:48,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2020-12-22 19:35:48,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=1927, Unknown=0, NotChecked=0, Total=2070 [2020-12-22 19:35:48,910 INFO L87 Difference]: Start difference. First operand 134 states and 152 transitions. Second operand 46 states. [2020-12-22 19:35:50,002 WARN L197 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2020-12-22 19:35:50,634 WARN L197 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2020-12-22 19:35:51,100 WARN L197 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 75 [2020-12-22 19:35:51,772 WARN L197 SmtUtils]: Spent 550.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 97 [2020-12-22 19:35:52,649 WARN L197 SmtUtils]: Spent 777.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 121 [2020-12-22 19:35:53,585 WARN L197 SmtUtils]: Spent 836.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 127 [2020-12-22 19:35:54,541 WARN L197 SmtUtils]: Spent 861.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 131 [2020-12-22 19:35:55,563 WARN L197 SmtUtils]: Spent 829.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 127 [2020-12-22 19:35:56,556 WARN L197 SmtUtils]: Spent 843.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 127 [2020-12-22 19:35:57,590 WARN L197 SmtUtils]: Spent 894.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 135 [2020-12-22 19:35:58,638 WARN L197 SmtUtils]: Spent 905.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 141 [2020-12-22 19:35:59,566 WARN L197 SmtUtils]: Spent 778.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 135 [2020-12-22 19:36:00,573 WARN L197 SmtUtils]: Spent 886.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 144 [2020-12-22 19:36:01,574 WARN L197 SmtUtils]: Spent 877.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 132 [2020-12-22 19:36:02,880 WARN L197 SmtUtils]: Spent 901.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 135 [2020-12-22 19:36:03,901 WARN L197 SmtUtils]: Spent 789.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 124 [2020-12-22 19:36:04,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:36:04,711 INFO L93 Difference]: Finished difference Result 183 states and 207 transitions. [2020-12-22 19:36:04,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-12-22 19:36:04,712 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 38 [2020-12-22 19:36:04,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:36:04,718 INFO L225 Difference]: With dead ends: 183 [2020-12-22 19:36:04,718 INFO L226 Difference]: Without dead ends: 183 [2020-12-22 19:36:04,720 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1057 ImplicationChecksByTransitivity, 17.3s TimeCoverageRelationStatistics Valid=812, Invalid=4590, Unknown=0, NotChecked=0, Total=5402 [2020-12-22 19:36:04,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2020-12-22 19:36:04,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 136. [2020-12-22 19:36:04,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-12-22 19:36:04,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 155 transitions. [2020-12-22 19:36:04,724 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 155 transitions. Word has length 38 [2020-12-22 19:36:04,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:36:04,725 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 155 transitions. [2020-12-22 19:36:04,725 INFO L482 AbstractCegarLoop]: Interpolant automaton has 46 states. [2020-12-22 19:36:04,725 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 155 transitions. [2020-12-22 19:36:04,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-12-22 19:36:04,725 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:36:04,726 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:36:04,938 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:36:04,939 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:36:04,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:36:04,940 INFO L82 PathProgramCache]: Analyzing trace with hash 1096489369, now seen corresponding path program 2 times [2020-12-22 19:36:04,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:36:04,941 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473813933] [2020-12-22 19:36:04,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:36:04,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:36:05,734 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:36:05,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473813933] [2020-12-22 19:36:05,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [381400464] [2020-12-22 19:36:05,734 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-12-22 19:36:05,918 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-22 19:36:05,919 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 19:36:05,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 107 conjunts are in the unsatisfiable core [2020-12-22 19:36:05,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:36:05,948 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 10 treesize of output 8 [2020-12-22 19:36:05,950 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:36:05,963 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:36:05,964 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:36:05,964 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:11 [2020-12-22 19:36:06,737 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-22 19:36:06,739 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:36:06,776 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:36:06,784 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 [2020-12-22 19:36:06,786 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:36:06,820 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:36:06,822 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:36:06,822 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:42, output treesize:34 [2020-12-22 19:36:07,084 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:36:07,110 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:36:07,111 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 57 [2020-12-22 19:36:07,112 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 1] term [2020-12-22 19:36:07,112 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:36:07,113 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-12-22 19:36:07,198 INFO L625 ElimStorePlain]: treesize reduction 40, result has 63.6 percent of original size [2020-12-22 19:36:07,243 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:36:07,244 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 71 [2020-12-22 19:36:07,246 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 3, 2, 1] term [2020-12-22 19:36:07,246 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:36:07,248 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2020-12-22 19:36:07,333 INFO L625 ElimStorePlain]: treesize reduction 45, result has 57.9 percent of original size [2020-12-22 19:36:07,335 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:36:07,335 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:78, output treesize:62 [2020-12-22 19:36:09,821 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:36:09,860 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:36:09,861 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 206 treesize of output 127 [2020-12-22 19:36:09,865 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 19:36:09,917 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:36:09,924 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 28 [2020-12-22 19:36:09,927 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:36:09,956 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:36:09,961 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:36:09,961 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:227, output treesize:13 [2020-12-22 19:36:10,098 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:36:10,098 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:36:10,098 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 27] total 46 [2020-12-22 19:36:10,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812770647] [2020-12-22 19:36:10,099 INFO L461 AbstractCegarLoop]: Interpolant automaton has 46 states [2020-12-22 19:36:10,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:36:10,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2020-12-22 19:36:10,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=1927, Unknown=0, NotChecked=0, Total=2070 [2020-12-22 19:36:10,100 INFO L87 Difference]: Start difference. First operand 136 states and 155 transitions. Second operand 46 states. [2020-12-22 19:36:11,327 WARN L197 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2020-12-22 19:36:11,895 WARN L197 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2020-12-22 19:36:12,333 WARN L197 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2020-12-22 19:36:12,939 WARN L197 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 83 [2020-12-22 19:36:13,742 WARN L197 SmtUtils]: Spent 680.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 106 [2020-12-22 19:36:14,651 WARN L197 SmtUtils]: Spent 737.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 112 [2020-12-22 19:36:15,555 WARN L197 SmtUtils]: Spent 778.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 120 [2020-12-22 19:36:16,444 WARN L197 SmtUtils]: Spent 734.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 116 [2020-12-22 19:36:17,373 WARN L197 SmtUtils]: Spent 801.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 120 [2020-12-22 19:36:18,287 WARN L197 SmtUtils]: Spent 766.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 118 [2020-12-22 19:36:19,251 WARN L197 SmtUtils]: Spent 830.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 122 [2020-12-22 19:36:20,242 WARN L197 SmtUtils]: Spent 838.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 122 [2020-12-22 19:36:21,416 WARN L197 SmtUtils]: Spent 916.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 126 [2020-12-22 19:36:22,397 WARN L197 SmtUtils]: Spent 836.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 122 [2020-12-22 19:36:23,455 WARN L197 SmtUtils]: Spent 927.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 130 [2020-12-22 19:36:24,592 WARN L197 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 144 DAG size of output: 133 [2020-12-22 19:36:25,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:36:25,195 INFO L93 Difference]: Finished difference Result 160 states and 182 transitions. [2020-12-22 19:36:25,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-12-22 19:36:25,196 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 38 [2020-12-22 19:36:25,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:36:25,197 INFO L225 Difference]: With dead ends: 160 [2020-12-22 19:36:25,197 INFO L226 Difference]: Without dead ends: 160 [2020-12-22 19:36:25,199 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 854 ImplicationChecksByTransitivity, 17.1s TimeCoverageRelationStatistics Valid=638, Invalid=4332, Unknown=0, NotChecked=0, Total=4970 [2020-12-22 19:36:25,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-12-22 19:36:25,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 133. [2020-12-22 19:36:25,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-12-22 19:36:25,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 150 transitions. [2020-12-22 19:36:25,203 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 150 transitions. Word has length 38 [2020-12-22 19:36:25,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:36:25,203 INFO L481 AbstractCegarLoop]: Abstraction has 133 states and 150 transitions. [2020-12-22 19:36:25,203 INFO L482 AbstractCegarLoop]: Interpolant automaton has 46 states. [2020-12-22 19:36:25,204 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 150 transitions. [2020-12-22 19:36:25,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-12-22 19:36:25,204 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:36:25,204 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:36:25,417 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2020-12-22 19:36:25,418 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:36:25,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:36:25,419 INFO L82 PathProgramCache]: Analyzing trace with hash -370198867, now seen corresponding path program 1 times [2020-12-22 19:36:25,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:36:25,420 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110249747] [2020-12-22 19:36:25,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:36:25,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:36:26,280 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:36:26,280 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110249747] [2020-12-22 19:36:26,280 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1422845346] [2020-12-22 19:36:26,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/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 [2020-12-22 19:36:26,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:36:26,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 82 conjunts are in the unsatisfiable core [2020-12-22 19:36:26,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:36:26,594 INFO L348 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2020-12-22 19:36:26,594 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 19 treesize of output 18 [2020-12-22 19:36:26,598 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:36:26,612 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:36:26,613 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:36:26,613 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:21, output treesize:18 [2020-12-22 19:36:26,944 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:36:26,944 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 69 [2020-12-22 19:36:26,946 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:36:26,947 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:36:26,953 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:36:26,991 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:36:26,993 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:36:26,993 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:38, output treesize:40 [2020-12-22 19:36:27,525 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2020-12-22 19:36:27,530 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:36:27,564 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:36:27,574 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-22 19:36:27,575 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:36:27,609 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:36:27,610 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:36:27,610 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:51, output treesize:32 [2020-12-22 19:36:27,887 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:36:27,887 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 50 [2020-12-22 19:36:27,890 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 3, 2, 1] term [2020-12-22 19:36:27,890 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:36:27,892 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:36:27,923 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:36:27,925 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. [2020-12-22 19:36:27,925 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:52, output treesize:44 [2020-12-22 19:36:28,555 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 57 [2020-12-22 19:36:28,557 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:36:28,592 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:36:28,593 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. [2020-12-22 19:36:28,594 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:98, output treesize:71 [2020-12-22 19:36:29,233 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:36:29,883 WARN L197 SmtUtils]: Spent 647.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 101 [2020-12-22 19:36:29,884 INFO L348 Elim1Store]: treesize reduction 16, result has 93.5 percent of original size [2020-12-22 19:36:29,884 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 15 case distinctions, treesize of input 82 treesize of output 264 [2020-12-22 19:36:29,892 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 19:36:29,893 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 19:36:29,894 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-22 19:36:29,894 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:36:29,895 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:36:29,896 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:36:29,897 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:36:29,898 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:36:29,899 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:36:29,900 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:36:29,901 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:36:29,901 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:36:29,904 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[12, 3, 2, 1] term [2020-12-22 19:36:29,904 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2020-12-22 19:36:29,905 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2020-12-22 19:36:29,906 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-22 19:36:29,906 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-22 19:36:29,907 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-22 19:36:29,908 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2020-12-22 19:36:29,909 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-22 19:36:29,910 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2020-12-22 19:36:29,915 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 3 xjuncts. [2020-12-22 19:36:30,108 WARN L197 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 32 [2020-12-22 19:36:30,109 INFO L625 ElimStorePlain]: treesize reduction 161, result has 45.6 percent of original size [2020-12-22 19:36:30,114 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:36:30,116 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 19:36:30,116 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:91, output treesize:102 [2020-12-22 19:36:30,117 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:36:30,267 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:36:30,270 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:36:30,271 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:36:30,275 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:36:30,276 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:36:30,287 INFO L443 ElimStorePlain]: Different costs {0=[|#memory_$Pointer$.offset|], 6=[|#memory_$Pointer$.base|]} [2020-12-22 19:36:30,295 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 7 treesize of output 3 [2020-12-22 19:36:30,297 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:36:30,305 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 7 treesize of output 3 [2020-12-22 19:36:30,307 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:36:30,375 INFO L625 ElimStorePlain]: treesize reduction 69, result has 41.5 percent of original size [2020-12-22 19:36:30,380 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:36:30,388 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:36:30,389 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 43 treesize of output 26 [2020-12-22 19:36:30,392 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2020-12-22 19:36:30,431 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:36:30,436 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:36:30,436 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:132, output treesize:3 [2020-12-22 19:36:30,499 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:36:30,500 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:36:30,500 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 20] total 39 [2020-12-22 19:36:30,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921873612] [2020-12-22 19:36:30,500 INFO L461 AbstractCegarLoop]: Interpolant automaton has 40 states [2020-12-22 19:36:30,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:36:30,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2020-12-22 19:36:30,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=1427, Unknown=0, NotChecked=0, Total=1560 [2020-12-22 19:36:30,501 INFO L87 Difference]: Start difference. First operand 133 states and 150 transitions. Second operand 40 states. [2020-12-22 19:36:31,341 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-12-22 19:36:31,699 WARN L197 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2020-12-22 19:36:32,058 WARN L197 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2020-12-22 19:36:32,363 WARN L197 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2020-12-22 19:36:32,760 WARN L197 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2020-12-22 19:36:33,333 WARN L197 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 80 [2020-12-22 19:36:34,161 WARN L197 SmtUtils]: Spent 635.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 98 [2020-12-22 19:36:35,115 WARN L197 SmtUtils]: Spent 851.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 118 [2020-12-22 19:36:36,231 WARN L197 SmtUtils]: Spent 907.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 124 [2020-12-22 19:36:37,776 WARN L197 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 139 DAG size of output: 125 [2020-12-22 19:36:39,019 WARN L197 SmtUtils]: Spent 990.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 125 [2020-12-22 19:36:39,408 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-12-22 19:36:39,640 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-12-22 19:36:40,764 WARN L197 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 145 DAG size of output: 129 [2020-12-22 19:36:41,701 WARN L197 SmtUtils]: Spent 835.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 127 [2020-12-22 19:36:41,983 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-12-22 19:36:42,244 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-12-22 19:36:43,809 WARN L197 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 81 [2020-12-22 19:36:44,230 WARN L197 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 84 [2020-12-22 19:36:44,785 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-12-22 19:36:45,067 WARN L197 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2020-12-22 19:36:45,302 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-12-22 19:36:47,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:36:47,137 INFO L93 Difference]: Finished difference Result 267 states and 297 transitions. [2020-12-22 19:36:47,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2020-12-22 19:36:47,139 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 39 [2020-12-22 19:36:47,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:36:47,142 INFO L225 Difference]: With dead ends: 267 [2020-12-22 19:36:47,142 INFO L226 Difference]: Without dead ends: 267 [2020-12-22 19:36:47,144 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1477 ImplicationChecksByTransitivity, 15.3s TimeCoverageRelationStatistics Valid=982, Invalid=5338, Unknown=0, NotChecked=0, Total=6320 [2020-12-22 19:36:47,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2020-12-22 19:36:47,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 164. [2020-12-22 19:36:47,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-12-22 19:36:47,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 187 transitions. [2020-12-22 19:36:47,149 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 187 transitions. Word has length 39 [2020-12-22 19:36:47,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:36:47,149 INFO L481 AbstractCegarLoop]: Abstraction has 164 states and 187 transitions. [2020-12-22 19:36:47,149 INFO L482 AbstractCegarLoop]: Interpolant automaton has 40 states. [2020-12-22 19:36:47,150 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 187 transitions. [2020-12-22 19:36:47,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-12-22 19:36:47,150 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:36:47,150 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:36:47,351 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2020-12-22 19:36:47,352 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:36:47,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:36:47,353 INFO L82 PathProgramCache]: Analyzing trace with hash 1408737171, now seen corresponding path program 1 times [2020-12-22 19:36:47,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:36:47,353 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84791445] [2020-12-22 19:36:47,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:36:47,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:36:48,212 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:36:48,212 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84791445] [2020-12-22 19:36:48,212 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1460495522] [2020-12-22 19:36:48,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/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 [2020-12-22 19:36:48,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:36:48,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 30 conjunts are in the unsatisfiable core [2020-12-22 19:36:48,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:36:48,668 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 23 treesize of output 15 [2020-12-22 19:36:48,670 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:36:48,680 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:36:48,681 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:36:48,681 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:19 [2020-12-22 19:36:49,428 WARN L197 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 30 [2020-12-22 19:36:49,430 INFO L348 Elim1Store]: treesize reduction 24, result has 68.0 percent of original size [2020-12-22 19:36:49,430 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 74 [2020-12-22 19:36:49,432 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:36:49,433 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-22 19:36:49,434 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-22 19:36:49,435 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-22 19:36:49,436 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-22 19:36:49,439 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:36:49,439 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-22 19:36:49,439 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-22 19:36:49,440 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-22 19:36:49,442 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-22 19:36:49,443 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 19:36:49,514 INFO L625 ElimStorePlain]: treesize reduction 40, result has 55.1 percent of original size [2020-12-22 19:36:49,517 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:36:49,518 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:36:49,519 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:36:49,520 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:36:49,521 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-22 19:36:49,522 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:58, output treesize:49 [2020-12-22 19:36:49,523 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:36:49,523 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:36:49,524 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:36:49,524 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:36:50,716 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:36:50,718 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:36:50,719 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:36:50,720 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:36:50,721 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:36:50,722 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:36:50,723 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:36:50,724 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:36:50,727 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:36:50,728 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:36:50,729 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:36:50,729 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:36:50,731 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:36:50,733 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:36:50,738 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:36:50,739 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:36:50,740 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:36:50,741 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:36:50,792 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:36:50,793 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 5 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 59 [2020-12-22 19:36:50,796 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-22 19:36:50,796 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-22 19:36:50,798 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-22 19:36:50,800 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-22 19:36:50,800 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-22 19:36:50,801 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-22 19:36:50,802 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 19:36:50,824 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:36:50,824 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 36 treesize of output 27 [2020-12-22 19:36:50,826 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:36:50,876 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:36:50,881 INFO L547 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2020-12-22 19:36:50,882 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:95, output treesize:23 [2020-12-22 19:36:50,960 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-22 19:36:50,960 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:36:50,961 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 12] total 32 [2020-12-22 19:36:50,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286369988] [2020-12-22 19:36:50,961 INFO L461 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-12-22 19:36:50,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:36:50,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-12-22 19:36:50,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=974, Unknown=2, NotChecked=0, Total=1056 [2020-12-22 19:36:50,963 INFO L87 Difference]: Start difference. First operand 164 states and 187 transitions. Second operand 33 states. [2020-12-22 19:37:00,950 WARN L197 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2020-12-22 19:37:01,224 WARN L197 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 71 [2020-12-22 19:37:01,714 WARN L197 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2020-12-22 19:37:04,046 WARN L197 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-12-22 19:37:30,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:37:30,239 INFO L93 Difference]: Finished difference Result 206 states and 230 transitions. [2020-12-22 19:37:30,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-12-22 19:37:30,240 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 40 [2020-12-22 19:37:30,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:37:30,242 INFO L225 Difference]: With dead ends: 206 [2020-12-22 19:37:30,242 INFO L226 Difference]: Without dead ends: 206 [2020-12-22 19:37:30,244 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 747 ImplicationChecksByTransitivity, 17.4s TimeCoverageRelationStatistics Valid=455, Invalid=3823, Unknown=12, NotChecked=0, Total=4290 [2020-12-22 19:37:30,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-12-22 19:37:30,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 179. [2020-12-22 19:37:30,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2020-12-22 19:37:30,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 213 transitions. [2020-12-22 19:37:30,249 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 213 transitions. Word has length 40 [2020-12-22 19:37:30,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:37:30,250 INFO L481 AbstractCegarLoop]: Abstraction has 179 states and 213 transitions. [2020-12-22 19:37:30,250 INFO L482 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-12-22 19:37:30,250 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 213 transitions. [2020-12-22 19:37:30,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-12-22 19:37:30,250 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:37:30,251 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:37:30,463 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2020-12-22 19:37:30,464 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:37:30,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:37:30,465 INFO L82 PathProgramCache]: Analyzing trace with hash 721179504, now seen corresponding path program 1 times [2020-12-22 19:37:30,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:37:30,466 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594358762] [2020-12-22 19:37:30,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:37:30,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:37:30,595 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-22 19:37:30,596 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594358762] [2020-12-22 19:37:30,596 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:37:30,596 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 19:37:30,596 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990126700] [2020-12-22 19:37:30,597 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 19:37:30,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:37:30,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 19:37:30,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-12-22 19:37:30,597 INFO L87 Difference]: Start difference. First operand 179 states and 213 transitions. Second operand 8 states. [2020-12-22 19:37:30,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:37:30,838 INFO L93 Difference]: Finished difference Result 178 states and 212 transitions. [2020-12-22 19:37:30,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 19:37:30,840 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 41 [2020-12-22 19:37:30,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:37:30,841 INFO L225 Difference]: With dead ends: 178 [2020-12-22 19:37:30,841 INFO L226 Difference]: Without dead ends: 178 [2020-12-22 19:37:30,842 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-22 19:37:30,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-12-22 19:37:30,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2020-12-22 19:37:30,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-12-22 19:37:30,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 212 transitions. [2020-12-22 19:37:30,847 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 212 transitions. Word has length 41 [2020-12-22 19:37:30,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:37:30,847 INFO L481 AbstractCegarLoop]: Abstraction has 178 states and 212 transitions. [2020-12-22 19:37:30,847 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 19:37:30,847 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 212 transitions. [2020-12-22 19:37:30,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-12-22 19:37:30,848 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:37:30,848 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, 1, 1, 1, 1, 1, 1] [2020-12-22 19:37:30,848 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-12-22 19:37:30,848 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:37:30,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:37:30,849 INFO L82 PathProgramCache]: Analyzing trace with hash 349376947, now seen corresponding path program 3 times [2020-12-22 19:37:30,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:37:30,849 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423479053] [2020-12-22 19:37:30,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:37:30,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:37:30,891 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-22 19:37:30,891 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423479053] [2020-12-22 19:37:30,891 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [696124583] [2020-12-22 19:37:30,891 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-12-22 19:37:31,114 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-12-22 19:37:31,115 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 19:37:31,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-22 19:37:31,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:37:31,198 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-22 19:37:31,198 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 19:37:31,198 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2020-12-22 19:37:31,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290541047] [2020-12-22 19:37:31,199 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 19:37:31,199 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:37:31,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 19:37:31,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 19:37:31,199 INFO L87 Difference]: Start difference. First operand 178 states and 212 transitions. Second operand 4 states. [2020-12-22 19:37:31,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:37:31,213 INFO L93 Difference]: Finished difference Result 99 states and 113 transitions. [2020-12-22 19:37:31,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 19:37:31,214 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 41 [2020-12-22 19:37:31,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:37:31,215 INFO L225 Difference]: With dead ends: 99 [2020-12-22 19:37:31,215 INFO L226 Difference]: Without dead ends: 99 [2020-12-22 19:37:31,216 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 19:37:31,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-12-22 19:37:31,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2020-12-22 19:37:31,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-12-22 19:37:31,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 113 transitions. [2020-12-22 19:37:31,219 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 113 transitions. Word has length 41 [2020-12-22 19:37:31,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:37:31,219 INFO L481 AbstractCegarLoop]: Abstraction has 99 states and 113 transitions. [2020-12-22 19:37:31,219 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 19:37:31,219 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 113 transitions. [2020-12-22 19:37:31,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-12-22 19:37:31,219 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:37:31,219 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:37:31,420 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,14 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:37:31,421 INFO L429 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:37:31,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:37:31,421 INFO L82 PathProgramCache]: Analyzing trace with hash -453681587, now seen corresponding path program 1 times [2020-12-22 19:37:31,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:37:31,422 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028846728] [2020-12-22 19:37:31,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:37:31,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:37:33,945 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:37:33,945 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028846728] [2020-12-22 19:37:33,945 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1687078622] [2020-12-22 19:37:33,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/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 [2020-12-22 19:37:34,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:37:34,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 86 conjunts are in the unsatisfiable core [2020-12-22 19:37:34,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:37:34,192 INFO L348 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2020-12-22 19:37:34,192 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 1 case distinctions, treesize of input 9 treesize of output 11 [2020-12-22 19:37:34,194 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:37:34,206 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:37:34,207 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:37:34,208 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:14 [2020-12-22 19:37:34,669 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 27 [2020-12-22 19:37:34,670 INFO L348 Elim1Store]: treesize reduction 8, result has 87.3 percent of original size [2020-12-22 19:37:34,671 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 22 treesize of output 69 [2020-12-22 19:37:34,673 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:37:34,676 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:37:34,679 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:37:34,702 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:37:34,703 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:37:34,704 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:28, output treesize:30 [2020-12-22 19:37:35,120 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-22 19:37:35,121 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:37:35,151 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:37:35,152 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:37:35,153 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:38, output treesize:34 [2020-12-22 19:37:35,485 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:37:35,486 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 51 [2020-12-22 19:37:35,488 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 3, 2, 1] term [2020-12-22 19:37:35,489 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:37:35,490 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:37:35,519 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:37:35,521 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. [2020-12-22 19:37:35,521 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:54, output treesize:46 [2020-12-22 19:37:38,392 INFO L443 ElimStorePlain]: Different costs {6=[|v_#memory_$Pointer$.offset_37|], 30=[|v_#memory_$Pointer$.base_46|]} [2020-12-22 19:37:38,399 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:37:38,438 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:37:38,438 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 146 treesize of output 136 [2020-12-22 19:37:38,441 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-12-22 19:37:38,441 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:37:38,443 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 19:37:38,444 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-12-22 19:37:38,445 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:37:38,446 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 19:37:38,447 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 19:37:38,643 WARN L197 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2020-12-22 19:37:38,644 INFO L625 ElimStorePlain]: treesize reduction 24, result has 86.9 percent of original size [2020-12-22 19:37:38,652 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:37:38,912 WARN L197 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-12-22 19:37:38,913 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:37:38,913 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 14 case distinctions, treesize of input 142 treesize of output 258 [2020-12-22 19:37:38,920 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-12-22 19:37:38,920 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 19:37:38,920 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:37:38,921 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:37:38,922 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:37:38,922 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-22 19:37:38,924 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 19:37:38,925 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:37:38,926 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:37:38,926 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:37:38,927 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-22 19:37:38,931 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:37:38,932 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:37:38,933 INFO L547 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 19:37:39,141 WARN L197 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-12-22 19:37:39,142 INFO L625 ElimStorePlain]: treesize reduction 28, result has 77.8 percent of original size [2020-12-22 19:37:39,148 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:37:39,148 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:37:39,149 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:37:39,150 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:37:39,152 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:37:39,152 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:37:39,153 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:37:39,154 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:37:39,155 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:37:39,156 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:37:39,157 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:37:39,157 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:37:39,159 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:37:39,160 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:37:39,162 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-22 19:37:39,162 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:180, output treesize:80 [2020-12-22 19:37:39,165 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:37:39,166 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:37:39,167 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:37:39,167 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:37:39,168 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:37:39,169 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:37:39,170 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:37:39,170 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:37:39,172 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:37:39,172 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:37:39,419 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:37:39,420 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:37:39,421 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:37:39,422 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:37:39,423 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:37:39,424 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 19:37:39,426 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:37:39,426 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:37:39,427 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:37:39,431 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:37:39,432 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:37:39,433 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:37:39,433 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:37:39,448 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:37:39,450 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:37:39,451 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2020-12-22 19:37:39,453 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:37:39,465 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 7 treesize of output 3 [2020-12-22 19:37:39,468 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:37:39,746 WARN L197 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2020-12-22 19:37:39,747 INFO L625 ElimStorePlain]: treesize reduction 9, result has 93.3 percent of original size [2020-12-22 19:37:39,750 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2020-12-22 19:37:39,750 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:152, output treesize:125 [2020-12-22 19:37:40,124 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2020-12-22 19:37:40,657 WARN L197 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2020-12-22 19:37:40,675 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 11, 1] term [2020-12-22 19:37:40,676 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:37:40,682 INFO L443 ElimStorePlain]: Different costs {3=[|v_#valid_75|], 6=[v_prenex_3]} [2020-12-22 19:37:40,693 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:37:40,699 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 0 case distinctions, treesize of input 21 treesize of output 21 [2020-12-22 19:37:40,702 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:37:40,925 WARN L197 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2020-12-22 19:37:40,926 INFO L625 ElimStorePlain]: treesize reduction 4, result has 96.6 percent of original size [2020-12-22 19:37:40,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:37:40,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:37:40,946 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:37:40,963 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:37:40,964 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 37 [2020-12-22 19:37:40,967 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:37:41,179 WARN L197 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2020-12-22 19:37:41,180 INFO L625 ElimStorePlain]: treesize reduction 8, result has 92.2 percent of original size [2020-12-22 19:37:41,183 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2020-12-22 19:37:41,183 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:123, output treesize:95 [2020-12-22 19:37:41,512 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2020-12-22 19:37:41,519 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 9, 1] term [2020-12-22 19:37:41,519 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:37:41,542 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:37:41,673 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2020-12-22 19:37:41,674 INFO L348 Elim1Store]: treesize reduction 24, result has 72.4 percent of original size [2020-12-22 19:37:41,674 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 47 treesize of output 84 [2020-12-22 19:37:41,677 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:37:41,678 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-22 19:37:41,680 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:37:41,846 WARN L197 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2020-12-22 19:37:41,847 INFO L625 ElimStorePlain]: treesize reduction 15, result has 89.1 percent of original size [2020-12-22 19:37:41,858 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:37:41,860 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:37:41,992 WARN L197 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 31 [2020-12-22 19:37:41,993 INFO L348 Elim1Store]: treesize reduction 28, result has 67.8 percent of original size [2020-12-22 19:37:41,993 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 65 treesize of output 85 [2020-12-22 19:37:41,996 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-22 19:37:41,997 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-22 19:37:41,998 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:37:41,998 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:37:41,999 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:37:42,001 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:37:42,001 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:37:42,003 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:37:42,003 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:37:42,004 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:37:42,006 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-22 19:37:42,006 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:37:42,007 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:37:42,008 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:37:42,008 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:37:42,009 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-22 19:37:42,010 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:37:42,011 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:37:42,012 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:37:42,013 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:37:42,013 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:37:42,014 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:37:42,016 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:37:42,016 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:37:42,019 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-22 19:37:42,020 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-22 19:37:42,020 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:37:42,020 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:37:42,021 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:37:42,023 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:37:42,023 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:37:42,024 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:37:42,025 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:37:42,026 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:37:42,027 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-22 19:37:42,027 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:37:42,028 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:37:42,029 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:37:42,030 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:37:42,031 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-22 19:37:42,031 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:37:42,032 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:37:42,033 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:37:42,034 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:37:42,034 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:37:42,036 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:37:42,037 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:37:42,037 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:37:42,038 INFO L547 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 19:37:42,254 WARN L197 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2020-12-22 19:37:42,255 INFO L625 ElimStorePlain]: treesize reduction 59, result has 65.3 percent of original size [2020-12-22 19:37:42,259 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:37:42,260 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:37:42,262 INFO L547 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 2 dim-2 vars, End of recursive call: 5 dim-0 vars, and 2 xjuncts. [2020-12-22 19:37:42,262 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 7 variables, input treesize:141, output treesize:108 [2020-12-22 19:37:42,263 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:37:42,264 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:37:42,580 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:37:42,580 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:37:42,856 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:37:42,857 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:37:47,649 WARN L197 SmtUtils]: Spent 4.52 s on a formula simplification that was a NOOP. DAG size: 52 [2020-12-22 19:37:47,659 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-22 19:37:47,673 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-22 19:37:47,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:37:47,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:37:47,720 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:37:47,720 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 43 treesize of output 18 [2020-12-22 19:37:47,722 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:37:47,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:37:47,771 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:37:47,772 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 46 [2020-12-22 19:37:47,774 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:37:47,787 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:37:47,803 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:37:47,803 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 27 [2020-12-22 19:37:47,805 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-22 19:37:47,951 WARN L197 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 26 [2020-12-22 19:37:47,952 INFO L625 ElimStorePlain]: treesize reduction 38, result has 58.2 percent of original size [2020-12-22 19:37:47,955 INFO L547 ElimStorePlain]: Start of recursive call 1: 9 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 2 xjuncts. [2020-12-22 19:37:47,955 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 10 variables, input treesize:195, output treesize:37 [2020-12-22 19:37:48,213 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:37:48,213 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:37:48,213 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 27] total 56 [2020-12-22 19:37:48,213 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410173188] [2020-12-22 19:37:48,214 INFO L461 AbstractCegarLoop]: Interpolant automaton has 57 states [2020-12-22 19:37:48,214 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:37:48,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2020-12-22 19:37:48,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=3011, Unknown=0, NotChecked=0, Total=3192 [2020-12-22 19:37:48,216 INFO L87 Difference]: Start difference. First operand 99 states and 113 transitions. Second operand 57 states. [2020-12-22 19:37:49,044 WARN L197 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-12-22 19:37:49,323 WARN L197 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2020-12-22 19:37:49,848 WARN L197 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2020-12-22 19:37:50,238 WARN L197 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2020-12-22 19:37:50,693 WARN L197 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2020-12-22 19:37:51,138 WARN L197 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 68 [2020-12-22 19:37:51,630 WARN L197 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 72 [2020-12-22 19:37:52,241 WARN L197 SmtUtils]: Spent 493.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 93 [2020-12-22 19:37:53,053 WARN L197 SmtUtils]: Spent 680.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 116 [2020-12-22 19:37:53,978 WARN L197 SmtUtils]: Spent 782.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 124 [2020-12-22 19:37:54,980 WARN L197 SmtUtils]: Spent 857.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 131 [2020-12-22 19:37:56,050 WARN L197 SmtUtils]: Spent 924.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 136 [2020-12-22 19:37:57,126 WARN L197 SmtUtils]: Spent 867.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 132 [2020-12-22 19:37:58,253 WARN L197 SmtUtils]: Spent 945.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 136 [2020-12-22 19:37:59,501 WARN L197 SmtUtils]: Spent 981.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 138 [2020-12-22 19:38:00,684 WARN L197 SmtUtils]: Spent 978.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 138 [2020-12-22 19:38:02,035 WARN L197 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 171 DAG size of output: 140 [2020-12-22 19:38:03,198 WARN L197 SmtUtils]: Spent 955.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 134 [2020-12-22 19:38:03,937 WARN L197 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 98 [2020-12-22 19:38:04,608 WARN L197 SmtUtils]: Spent 530.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 102 [2020-12-22 19:38:05,399 WARN L197 SmtUtils]: Spent 628.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 104 [2020-12-22 19:38:05,914 WARN L197 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 72 [2020-12-22 19:38:22,297 WARN L197 SmtUtils]: Spent 16.18 s on a formula simplification. DAG size of input: 112 DAG size of output: 66