/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/memsafety-ext3/getNumbers4-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 17:36:04,864 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 17:36:04,867 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 17:36:04,905 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 17:36:04,905 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 17:36:04,909 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 17:36:04,914 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 17:36:04,920 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 17:36:04,925 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 17:36:04,929 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 17:36:04,934 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 17:36:04,936 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 17:36:04,937 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 17:36:04,938 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 17:36:04,940 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 17:36:04,941 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 17:36:04,942 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 17:36:04,943 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 17:36:04,946 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 17:36:04,948 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 17:36:04,950 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 17:36:04,952 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 17:36:04,954 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 17:36:04,968 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 17:36:04,973 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-23 17:36:04,986 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 17:36:04,987 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 17:36:04,989 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 17:36:04,990 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 17:36:04,992 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 17:36:04,992 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 17:36:04,993 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 17:36:04,994 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 17:36:04,994 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 17:36:04,995 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 17:36:04,997 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 17:36:05,003 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2020-12-23 17:36:05,055 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 17:36:05,056 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 17:36:05,061 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 17:36:05,061 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 17:36:05,062 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 17:36:05,062 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 17:36:05,062 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-23 17:36:05,062 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 17:36:05,062 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 17:36:05,063 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-23 17:36:05,064 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-23 17:36:05,065 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-23 17:36:05,065 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 17:36:05,065 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-23 17:36:05,065 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 17:36:05,065 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 17:36:05,066 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 17:36:05,066 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 17:36:05,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 17:36:05,066 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 17:36:05,067 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 17:36:05,067 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 17:36:05,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 17:36:05,067 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 17:36:05,068 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 17:36:05,524 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 17:36:05,555 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 17:36:05,559 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 17:36:05,560 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 17:36:05,561 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 17:36:05,563 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety-ext3/getNumbers4-1.c [2020-12-23 17:36:05,656 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/986346903/88394259cebc496aa320f75f1a18e194/FLAG143daa712 [2020-12-23 17:36:06,236 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 17:36:06,237 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/memsafety-ext3/getNumbers4-1.c [2020-12-23 17:36:06,246 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/986346903/88394259cebc496aa320f75f1a18e194/FLAG143daa712 [2020-12-23 17:36:06,601 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/986346903/88394259cebc496aa320f75f1a18e194 [2020-12-23 17:36:06,605 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 17:36:06,608 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 17:36:06,611 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 17:36:06,611 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 17:36:06,616 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 17:36:06,618 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 05:36:06" (1/1) ... [2020-12-23 17:36:06,621 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5de47938 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:36:06, skipping insertion in model container [2020-12-23 17:36:06,621 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 05:36:06" (1/1) ... [2020-12-23 17:36:06,631 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 17:36:06,652 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: lhs: ArrayLHS[VariableLHS[~array~0,GLOBAL],[IdentifierExpression[~i~0,]]] left hand side expression in assignment: lhs: ArrayLHS[VariableLHS[~numbers2~0,GLOBAL],[IdentifierExpression[~i~1,]]] left hand side expression in assignment: lhs: ArrayLHS[VariableLHS[~numbers3~0,GLOBAL],[IdentifierExpression[~i~2,]]] left hand side expression in assignment: lhs: ArrayLHS[VariableLHS[~numbers4~0,GLOBAL],[IdentifierExpression[~i~3,]]] [2020-12-23 17:36:06,866 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 17:36:06,884 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#array~0,GLOBAL],base],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[~#array~0,GLOBAL],offset],BinaryExpression[ARITHMUL,IntegerLiteral[4],IdentifierExpression[~i~0,]]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#numbers2~0,GLOBAL],base],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[~#numbers2~0,GLOBAL],offset],BinaryExpression[ARITHMUL,IntegerLiteral[4],IdentifierExpression[~i~1,]]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#numbers3~0,GLOBAL],base],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[~#numbers3~0,GLOBAL],offset],BinaryExpression[ARITHMUL,IntegerLiteral[4],IdentifierExpression[~i~2,]]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#numbers4~0,GLOBAL],base],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[~#numbers4~0,GLOBAL],offset],BinaryExpression[ARITHMUL,IntegerLiteral[4],IdentifierExpression[~i~3,]]]]] [2020-12-23 17:36:06,910 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 17:36:06,932 INFO L208 MainTranslator]: Completed translation [2020-12-23 17:36:06,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:36:06 WrapperNode [2020-12-23 17:36:06,933 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 17:36:06,935 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 17:36:06,935 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 17:36:06,935 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 17:36:06,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:36:06" (1/1) ... [2020-12-23 17:36:06,958 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:36:06" (1/1) ... [2020-12-23 17:36:06,986 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 17:36:06,987 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 17:36:06,987 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 17:36:06,987 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 17:36:06,997 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:36:06" (1/1) ... [2020-12-23 17:36:06,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:36:06" (1/1) ... [2020-12-23 17:36:07,001 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:36:06" (1/1) ... [2020-12-23 17:36:07,001 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:36:06" (1/1) ... [2020-12-23 17:36:07,009 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:36:06" (1/1) ... [2020-12-23 17:36:07,014 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:36:06" (1/1) ... [2020-12-23 17:36:07,016 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:36:06" (1/1) ... [2020-12-23 17:36:07,018 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 17:36:07,019 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 17:36:07,020 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 17:36:07,020 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 17:36:07,021 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:36:06" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 17:36:07,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-23 17:36:07,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 17:36:07,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 17:36:07,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-23 17:36:07,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 17:36:07,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 17:36:07,841 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 17:36:07,842 INFO L299 CfgBuilder]: Removed 17 assume(true) statements. [2020-12-23 17:36:07,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 05:36:07 BoogieIcfgContainer [2020-12-23 17:36:07,844 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 17:36:07,846 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 17:36:07,846 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 17:36:07,850 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 17:36:07,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 05:36:06" (1/3) ... [2020-12-23 17:36:07,851 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@226f5e69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 05:36:07, skipping insertion in model container [2020-12-23 17:36:07,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:36:06" (2/3) ... [2020-12-23 17:36:07,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@226f5e69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 05:36:07, skipping insertion in model container [2020-12-23 17:36:07,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 05:36:07" (3/3) ... [2020-12-23 17:36:07,854 INFO L111 eAbstractionObserver]: Analyzing ICFG getNumbers4-1.c [2020-12-23 17:36:07,862 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 17:36:07,868 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 17 error locations. [2020-12-23 17:36:07,893 INFO L253 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2020-12-23 17:36:07,922 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 17:36:07,922 INFO L378 AbstractCegarLoop]: Hoare is false [2020-12-23 17:36:07,923 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 17:36:07,923 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 17:36:07,923 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 17:36:07,923 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 17:36:07,924 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 17:36:07,924 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 17:36:07,943 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states. [2020-12-23 17:36:07,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-23 17:36:07,950 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:36:07,951 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-23 17:36:07,952 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-23 17:36:07,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:36:07,960 INFO L82 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2020-12-23 17:36:07,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:36:07,973 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222731267] [2020-12-23 17:36:07,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:36:08,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:36:08,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:36:08,202 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222731267] [2020-12-23 17:36:08,203 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:36:08,203 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-23 17:36:08,204 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536245856] [2020-12-23 17:36:08,210 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 17:36:08,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:36:08,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 17:36:08,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 17:36:08,231 INFO L87 Difference]: Start difference. First operand 53 states. Second operand 3 states. [2020-12-23 17:36:08,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:36:08,291 INFO L93 Difference]: Finished difference Result 52 states and 56 transitions. [2020-12-23 17:36:08,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 17:36:08,293 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-12-23 17:36:08,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:36:08,303 INFO L225 Difference]: With dead ends: 52 [2020-12-23 17:36:08,303 INFO L226 Difference]: Without dead ends: 50 [2020-12-23 17:36:08,305 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 17:36:08,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-12-23 17:36:08,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-12-23 17:36:08,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-12-23 17:36:08,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2020-12-23 17:36:08,344 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 4 [2020-12-23 17:36:08,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:36:08,345 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2020-12-23 17:36:08,345 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 17:36:08,345 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2020-12-23 17:36:08,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-23 17:36:08,346 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:36:08,346 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-23 17:36:08,346 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 17:36:08,347 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-23 17:36:08,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:36:08,348 INFO L82 PathProgramCache]: Analyzing trace with hash 925766, now seen corresponding path program 1 times [2020-12-23 17:36:08,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:36:08,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887950234] [2020-12-23 17:36:08,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:36:08,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:36:08,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:36:08,447 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887950234] [2020-12-23 17:36:08,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:36:08,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 17:36:08,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157450081] [2020-12-23 17:36:08,450 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 17:36:08,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:36:08,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 17:36:08,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 17:36:08,452 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. Second operand 4 states. [2020-12-23 17:36:08,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:36:08,578 INFO L93 Difference]: Finished difference Result 53 states and 57 transitions. [2020-12-23 17:36:08,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 17:36:08,579 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2020-12-23 17:36:08,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:36:08,581 INFO L225 Difference]: With dead ends: 53 [2020-12-23 17:36:08,581 INFO L226 Difference]: Without dead ends: 53 [2020-12-23 17:36:08,582 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 17:36:08,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-12-23 17:36:08,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 52. [2020-12-23 17:36:08,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-12-23 17:36:08,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 56 transitions. [2020-12-23 17:36:08,594 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 56 transitions. Word has length 4 [2020-12-23 17:36:08,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:36:08,595 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 56 transitions. [2020-12-23 17:36:08,595 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 17:36:08,595 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 56 transitions. [2020-12-23 17:36:08,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-23 17:36:08,596 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:36:08,596 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2020-12-23 17:36:08,597 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 17:36:08,597 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-23 17:36:08,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:36:08,598 INFO L82 PathProgramCache]: Analyzing trace with hash 1809646286, now seen corresponding path program 1 times [2020-12-23 17:36:08,601 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:36:08,601 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443875407] [2020-12-23 17:36:08,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:36:08,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:36:08,738 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:36:08,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443875407] [2020-12-23 17:36:08,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [954136402] [2020-12-23 17:36:08,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:36:08,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:36:08,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-23 17:36:08,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:36:08,909 INFO L443 ElimStorePlain]: Different costs {0=[|v_#length_23|], 10=[|v_#valid_27|]} [2020-12-23 17:36:08,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:36:08,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:36:08,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:36:08,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:36:08,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:36:08,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:36:08,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:36:08,987 INFO L348 Elim1Store]: treesize reduction 27, result has 50.9 percent of original size [2020-12-23 17:36:08,988 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 18 treesize of output 43 [2020-12-23 17:36:08,993 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:36:09,060 INFO L625 ElimStorePlain]: treesize reduction 10, result has 88.0 percent of original size [2020-12-23 17:36:09,108 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:36:09,109 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 305 treesize of output 293 [2020-12-23 17:36:09,119 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:36:09,130 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:36:09,134 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-23 17:36:09,141 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:36:09,215 INFO L625 ElimStorePlain]: treesize reduction 26, result has 68.3 percent of original size [2020-12-23 17:36:09,247 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-23 17:36:09,248 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:59, output treesize:44 [2020-12-23 17:36:09,518 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:36:09,519 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:36:09,519 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2020-12-23 17:36:09,519 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384446552] [2020-12-23 17:36:09,520 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-23 17:36:09,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:36:09,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-23 17:36:09,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-12-23 17:36:09,521 INFO L87 Difference]: Start difference. First operand 52 states and 56 transitions. Second operand 8 states. [2020-12-23 17:36:09,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:36:09,658 INFO L93 Difference]: Finished difference Result 56 states and 60 transitions. [2020-12-23 17:36:09,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 17:36:09,659 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2020-12-23 17:36:09,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:36:09,660 INFO L225 Difference]: With dead ends: 56 [2020-12-23 17:36:09,660 INFO L226 Difference]: Without dead ends: 56 [2020-12-23 17:36:09,661 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-12-23 17:36:09,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-12-23 17:36:09,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 55. [2020-12-23 17:36:09,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-12-23 17:36:09,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 59 transitions. [2020-12-23 17:36:09,668 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 59 transitions. Word has length 7 [2020-12-23 17:36:09,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:36:09,669 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 59 transitions. [2020-12-23 17:36:09,669 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-23 17:36:09,669 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 59 transitions. [2020-12-23 17:36:09,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-23 17:36:09,670 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:36:09,670 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1] [2020-12-23 17:36:09,885 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-12-23 17:36:09,886 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-23 17:36:09,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:36:09,887 INFO L82 PathProgramCache]: Analyzing trace with hash 742961990, now seen corresponding path program 2 times [2020-12-23 17:36:09,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:36:09,888 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85310745] [2020-12-23 17:36:09,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:36:09,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:36:10,000 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:36:10,001 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85310745] [2020-12-23 17:36:10,001 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [825170214] [2020-12-23 17:36:10,001 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-12-23 17:36:10,074 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-23 17:36:10,074 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 17:36:10,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 12 conjunts are in the unsatisfiable core [2020-12-23 17:36:10,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:36:10,091 INFO L443 ElimStorePlain]: Different costs {0=[|v_#length_24|], 10=[|v_#valid_28|]} [2020-12-23 17:36:10,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:36:10,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:36:10,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:36:10,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:36:10,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:36:10,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:36:10,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:36:10,155 INFO L348 Elim1Store]: treesize reduction 27, result has 50.9 percent of original size [2020-12-23 17:36:10,155 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 18 treesize of output 43 [2020-12-23 17:36:10,158 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:36:10,216 INFO L625 ElimStorePlain]: treesize reduction 10, result has 88.0 percent of original size [2020-12-23 17:36:10,242 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:36:10,242 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 207 treesize of output 197 [2020-12-23 17:36:10,248 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:36:10,250 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:36:10,252 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-23 17:36:10,254 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:36:10,259 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:36:10,329 INFO L625 ElimStorePlain]: treesize reduction 73, result has 43.4 percent of original size [2020-12-23 17:36:10,342 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-23 17:36:10,343 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:59, output treesize:44 [2020-12-23 17:36:10,608 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:36:10,609 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:36:10,609 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2020-12-23 17:36:10,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801337091] [2020-12-23 17:36:10,610 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 17:36:10,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:36:10,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 17:36:10,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-12-23 17:36:10,611 INFO L87 Difference]: Start difference. First operand 55 states and 59 transitions. Second operand 10 states. [2020-12-23 17:36:10,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:36:10,828 INFO L93 Difference]: Finished difference Result 59 states and 63 transitions. [2020-12-23 17:36:10,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 17:36:10,830 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 10 [2020-12-23 17:36:10,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:36:10,831 INFO L225 Difference]: With dead ends: 59 [2020-12-23 17:36:10,832 INFO L226 Difference]: Without dead ends: 59 [2020-12-23 17:36:10,832 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-12-23 17:36:10,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-12-23 17:36:10,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 58. [2020-12-23 17:36:10,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-12-23 17:36:10,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 62 transitions. [2020-12-23 17:36:10,838 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 62 transitions. Word has length 10 [2020-12-23 17:36:10,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:36:10,839 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 62 transitions. [2020-12-23 17:36:10,839 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 17:36:10,839 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 62 transitions. [2020-12-23 17:36:10,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-23 17:36:10,840 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:36:10,840 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1] [2020-12-23 17:36:11,053 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:36:11,054 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-23 17:36:11,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:36:11,056 INFO L82 PathProgramCache]: Analyzing trace with hash 1614122958, now seen corresponding path program 3 times [2020-12-23 17:36:11,056 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:36:11,057 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295757867] [2020-12-23 17:36:11,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:36:11,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:36:11,187 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:36:11,187 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295757867] [2020-12-23 17:36:11,187 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1459066278] [2020-12-23 17:36:11,188 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-12-23 17:36:11,249 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-12-23 17:36:11,249 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 17:36:11,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-23 17:36:11,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:36:11,276 INFO L443 ElimStorePlain]: Different costs {0=[|v_#length_25|], 10=[|v_#valid_29|]} [2020-12-23 17:36:11,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:36:11,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:36:11,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:36:11,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:36:11,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:36:11,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:36:11,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:36:11,326 INFO L348 Elim1Store]: treesize reduction 27, result has 50.9 percent of original size [2020-12-23 17:36:11,328 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 18 treesize of output 43 [2020-12-23 17:36:11,331 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:36:11,380 INFO L625 ElimStorePlain]: treesize reduction 10, result has 88.0 percent of original size [2020-12-23 17:36:11,397 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:36:11,404 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 110 treesize of output 112 [2020-12-23 17:36:11,408 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:36:11,410 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-23 17:36:11,412 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:36:11,418 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:36:11,500 INFO L625 ElimStorePlain]: treesize reduction 159, result has 26.0 percent of original size [2020-12-23 17:36:11,513 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-23 17:36:11,514 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:59, output treesize:44 [2020-12-23 17:36:11,871 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-12-23 17:36:11,872 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 17:36:11,872 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 9 [2020-12-23 17:36:11,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017552527] [2020-12-23 17:36:11,873 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 17:36:11,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:36:11,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 17:36:11,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-12-23 17:36:11,874 INFO L87 Difference]: Start difference. First operand 58 states and 62 transitions. Second operand 6 states. [2020-12-23 17:36:11,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:36:11,981 INFO L93 Difference]: Finished difference Result 57 states and 61 transitions. [2020-12-23 17:36:11,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 17:36:11,982 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-12-23 17:36:11,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:36:11,983 INFO L225 Difference]: With dead ends: 57 [2020-12-23 17:36:11,983 INFO L226 Difference]: Without dead ends: 57 [2020-12-23 17:36:11,984 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-12-23 17:36:11,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-12-23 17:36:11,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 56. [2020-12-23 17:36:11,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-12-23 17:36:11,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 60 transitions. [2020-12-23 17:36:11,989 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 60 transitions. Word has length 13 [2020-12-23 17:36:11,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:36:11,989 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 60 transitions. [2020-12-23 17:36:11,990 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 17:36:11,990 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 60 transitions. [2020-12-23 17:36:11,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-23 17:36:11,990 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:36:11,991 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:36:12,202 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:36:12,203 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-23 17:36:12,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:36:12,204 INFO L82 PathProgramCache]: Analyzing trace with hash -118451422, now seen corresponding path program 1 times [2020-12-23 17:36:12,205 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:36:12,205 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851246526] [2020-12-23 17:36:12,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:36:12,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:36:12,281 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:36:12,282 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851246526] [2020-12-23 17:36:12,282 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [905751488] [2020-12-23 17:36:12,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:36:12,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:36:12,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-23 17:36:12,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:36:12,373 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:36:12,373 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:36:12,373 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2020-12-23 17:36:12,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754720680] [2020-12-23 17:36:12,374 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 17:36:12,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:36:12,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 17:36:12,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-12-23 17:36:12,375 INFO L87 Difference]: Start difference. First operand 56 states and 60 transitions. Second operand 7 states. [2020-12-23 17:36:12,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:36:12,406 INFO L93 Difference]: Finished difference Result 61 states and 65 transitions. [2020-12-23 17:36:12,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 17:36:12,406 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2020-12-23 17:36:12,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:36:12,407 INFO L225 Difference]: With dead ends: 61 [2020-12-23 17:36:12,407 INFO L226 Difference]: Without dead ends: 61 [2020-12-23 17:36:12,408 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-12-23 17:36:12,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-12-23 17:36:12,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 59. [2020-12-23 17:36:12,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-12-23 17:36:12,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 63 transitions. [2020-12-23 17:36:12,413 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 63 transitions. Word has length 16 [2020-12-23 17:36:12,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:36:12,413 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 63 transitions. [2020-12-23 17:36:12,413 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 17:36:12,413 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 63 transitions. [2020-12-23 17:36:12,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-23 17:36:12,414 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:36:12,414 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:36:12,629 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:36:12,630 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-23 17:36:12,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:36:12,631 INFO L82 PathProgramCache]: Analyzing trace with hash -2129139286, now seen corresponding path program 2 times [2020-12-23 17:36:12,631 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:36:12,632 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893150027] [2020-12-23 17:36:12,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:36:12,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:36:12,736 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:36:12,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893150027] [2020-12-23 17:36:12,740 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1690939157] [2020-12-23 17:36:12,740 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:36:12,804 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-23 17:36:12,804 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 17:36:12,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-23 17:36:12,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:36:12,926 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 25 [2020-12-23 17:36:12,927 INFO L348 Elim1Store]: treesize reduction 141, result has 23.8 percent of original size [2020-12-23 17:36:12,927 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 4 case distinctions, treesize of input 18 treesize of output 49 [2020-12-23 17:36:12,931 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:36:12,969 INFO L625 ElimStorePlain]: treesize reduction 10, result has 80.8 percent of original size [2020-12-23 17:36:12,986 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-23 17:36:12,987 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:22, output treesize:24 [2020-12-23 17:36:13,066 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-12-23 17:36:13,067 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 17:36:13,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 10 [2020-12-23 17:36:13,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856645752] [2020-12-23 17:36:13,073 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 17:36:13,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:36:13,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 17:36:13,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-12-23 17:36:13,075 INFO L87 Difference]: Start difference. First operand 59 states and 63 transitions. Second operand 5 states. [2020-12-23 17:36:13,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:36:13,198 INFO L93 Difference]: Finished difference Result 67 states and 71 transitions. [2020-12-23 17:36:13,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 17:36:13,199 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-12-23 17:36:13,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:36:13,202 INFO L225 Difference]: With dead ends: 67 [2020-12-23 17:36:13,202 INFO L226 Difference]: Without dead ends: 67 [2020-12-23 17:36:13,203 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-12-23 17:36:13,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-12-23 17:36:13,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 61. [2020-12-23 17:36:13,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-12-23 17:36:13,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 66 transitions. [2020-12-23 17:36:13,222 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 66 transitions. Word has length 19 [2020-12-23 17:36:13,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:36:13,223 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 66 transitions. [2020-12-23 17:36:13,223 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 17:36:13,223 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 66 transitions. [2020-12-23 17:36:13,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-23 17:36:13,224 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:36:13,225 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:36:13,440 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-12-23 17:36:13,441 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-23 17:36:13,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:36:13,442 INFO L82 PathProgramCache]: Analyzing trace with hash -2129139287, now seen corresponding path program 1 times [2020-12-23 17:36:13,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:36:13,442 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227824910] [2020-12-23 17:36:13,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:36:13,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:36:13,492 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-12-23 17:36:13,492 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227824910] [2020-12-23 17:36:13,492 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:36:13,492 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 17:36:13,493 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134126732] [2020-12-23 17:36:13,493 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 17:36:13,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:36:13,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 17:36:13,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 17:36:13,494 INFO L87 Difference]: Start difference. First operand 61 states and 66 transitions. Second operand 5 states. [2020-12-23 17:36:13,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:36:13,549 INFO L93 Difference]: Finished difference Result 60 states and 64 transitions. [2020-12-23 17:36:13,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 17:36:13,550 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-12-23 17:36:13,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:36:13,551 INFO L225 Difference]: With dead ends: 60 [2020-12-23 17:36:13,551 INFO L226 Difference]: Without dead ends: 60 [2020-12-23 17:36:13,552 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-23 17:36:13,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-12-23 17:36:13,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-12-23 17:36:13,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-12-23 17:36:13,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 64 transitions. [2020-12-23 17:36:13,555 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 64 transitions. Word has length 19 [2020-12-23 17:36:13,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:36:13,556 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 64 transitions. [2020-12-23 17:36:13,556 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 17:36:13,556 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 64 transitions. [2020-12-23 17:36:13,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-23 17:36:13,557 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:36:13,557 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:36:13,557 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-23 17:36:13,557 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-23 17:36:13,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:36:13,558 INFO L82 PathProgramCache]: Analyzing trace with hash -1578808454, now seen corresponding path program 1 times [2020-12-23 17:36:13,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:36:13,558 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286606701] [2020-12-23 17:36:13,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:36:13,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:36:13,621 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:36:13,622 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286606701] [2020-12-23 17:36:13,622 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [281070437] [2020-12-23 17:36:13,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-12-23 17:36:13,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:36:13,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-23 17:36:13,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:36:13,749 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:36:13,750 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:36:13,750 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2020-12-23 17:36:13,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793090057] [2020-12-23 17:36:13,751 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-23 17:36:13,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:36:13,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-23 17:36:13,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2020-12-23 17:36:13,752 INFO L87 Difference]: Start difference. First operand 60 states and 64 transitions. Second operand 8 states. [2020-12-23 17:36:13,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:36:13,806 INFO L93 Difference]: Finished difference Result 65 states and 69 transitions. [2020-12-23 17:36:13,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-23 17:36:13,807 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 20 [2020-12-23 17:36:13,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:36:13,808 INFO L225 Difference]: With dead ends: 65 [2020-12-23 17:36:13,808 INFO L226 Difference]: Without dead ends: 65 [2020-12-23 17:36:13,808 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2020-12-23 17:36:13,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-12-23 17:36:13,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 63. [2020-12-23 17:36:13,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-12-23 17:36:13,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 67 transitions. [2020-12-23 17:36:13,823 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 67 transitions. Word has length 20 [2020-12-23 17:36:13,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:36:13,823 INFO L481 AbstractCegarLoop]: Abstraction has 63 states and 67 transitions. [2020-12-23 17:36:13,823 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-23 17:36:13,824 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 67 transitions. [2020-12-23 17:36:13,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-23 17:36:13,824 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:36:13,824 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:36:14,037 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:36:14,037 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-23 17:36:14,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:36:14,038 INFO L82 PathProgramCache]: Analyzing trace with hash -2115101182, now seen corresponding path program 2 times [2020-12-23 17:36:14,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:36:14,039 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984321934] [2020-12-23 17:36:14,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:36:14,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:36:14,134 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:36:14,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984321934] [2020-12-23 17:36:14,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1847979900] [2020-12-23 17:36:14,134 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-12-23 17:36:14,193 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-23 17:36:14,193 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 17:36:14,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 17:36:14,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:36:14,391 WARN L197 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 28 [2020-12-23 17:36:14,393 INFO L348 Elim1Store]: treesize reduction 234, result has 18.2 percent of original size [2020-12-23 17:36:14,394 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 5 case distinctions, treesize of input 389 treesize of output 408 [2020-12-23 17:36:14,411 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:36:14,483 INFO L625 ElimStorePlain]: treesize reduction 24, result has 72.4 percent of original size [2020-12-23 17:36:14,488 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:14,490 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:14,492 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:14,494 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:14,497 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:14,524 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-12-23 17:36:14,524 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:42, output treesize:63 [2020-12-23 17:36:14,530 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:14,532 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:14,533 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:14,535 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:14,537 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:14,587 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:14,589 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:14,591 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:14,593 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:14,595 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:14,730 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:14,731 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:14,733 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:14,735 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:14,737 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:14,874 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:14,875 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:14,878 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:14,880 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:14,882 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:15,036 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:15,038 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:15,040 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:15,042 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:15,043 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:15,168 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:15,170 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:15,171 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:15,173 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:15,174 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:15,287 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:15,289 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:15,290 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:15,292 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:15,294 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:15,411 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:15,413 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:15,414 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:15,415 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:15,417 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:15,528 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:15,530 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:15,531 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:15,532 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:15,534 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:15,662 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:15,664 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:15,666 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:15,667 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:15,669 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:15,795 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:15,797 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:15,798 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:15,800 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:15,801 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:15,916 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:15,918 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:15,919 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:15,920 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:15,921 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:16,038 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:16,039 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:16,041 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:16,042 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:16,044 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:16,172 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:16,173 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:16,175 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:16,177 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:16,178 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:16,315 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:16,317 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:16,318 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:16,319 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:16,321 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:16,438 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:16,439 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:16,440 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:16,442 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:16,444 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:16,553 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:16,554 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:16,556 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:16,558 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:16,559 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:16,675 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:16,677 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:16,680 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:16,682 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:16,683 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:16,805 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:16,806 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:16,808 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:16,809 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:16,810 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:16,931 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:16,933 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:16,934 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:16,935 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:16,937 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:17,047 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:17,049 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:17,050 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:17,051 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:17,053 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:17,167 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:17,168 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:17,169 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:17,171 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:17,172 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:17,270 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-12-23 17:36:17,272 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 17:36:17,272 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [8] total 9 [2020-12-23 17:36:17,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898166041] [2020-12-23 17:36:17,276 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 17:36:17,276 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:36:17,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 17:36:17,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-12-23 17:36:17,279 INFO L87 Difference]: Start difference. First operand 63 states and 67 transitions. Second operand 3 states. [2020-12-23 17:36:17,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:36:17,319 INFO L93 Difference]: Finished difference Result 62 states and 66 transitions. [2020-12-23 17:36:17,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 17:36:17,319 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-12-23 17:36:17,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:36:17,321 INFO L225 Difference]: With dead ends: 62 [2020-12-23 17:36:17,321 INFO L226 Difference]: Without dead ends: 62 [2020-12-23 17:36:17,321 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 2 SyntacticMatches, 21 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-12-23 17:36:17,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-12-23 17:36:17,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2020-12-23 17:36:17,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-12-23 17:36:17,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 66 transitions. [2020-12-23 17:36:17,326 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 66 transitions. Word has length 23 [2020-12-23 17:36:17,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:36:17,326 INFO L481 AbstractCegarLoop]: Abstraction has 62 states and 66 transitions. [2020-12-23 17:36:17,326 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 17:36:17,327 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 66 transitions. [2020-12-23 17:36:17,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-23 17:36:17,327 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:36:17,327 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:36:17,541 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-12-23 17:36:17,542 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-23 17:36:17,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:36:17,543 INFO L82 PathProgramCache]: Analyzing trace with hash -2115101181, now seen corresponding path program 1 times [2020-12-23 17:36:17,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:36:17,543 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549065920] [2020-12-23 17:36:17,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:36:17,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:36:17,650 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:36:17,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549065920] [2020-12-23 17:36:17,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481990395] [2020-12-23 17:36:17,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:36:17,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:36:17,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-23 17:36:17,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:36:17,748 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:36:17,748 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:36:17,748 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2020-12-23 17:36:17,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879748487] [2020-12-23 17:36:17,749 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 17:36:17,749 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:36:17,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 17:36:17,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2020-12-23 17:36:17,750 INFO L87 Difference]: Start difference. First operand 62 states and 66 transitions. Second operand 9 states. [2020-12-23 17:36:17,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:36:17,789 INFO L93 Difference]: Finished difference Result 67 states and 71 transitions. [2020-12-23 17:36:17,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-23 17:36:17,790 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2020-12-23 17:36:17,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:36:17,792 INFO L225 Difference]: With dead ends: 67 [2020-12-23 17:36:17,792 INFO L226 Difference]: Without dead ends: 67 [2020-12-23 17:36:17,794 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2020-12-23 17:36:17,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-12-23 17:36:17,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 65. [2020-12-23 17:36:17,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-12-23 17:36:17,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 69 transitions. [2020-12-23 17:36:17,815 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 69 transitions. Word has length 23 [2020-12-23 17:36:17,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:36:17,815 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 69 transitions. [2020-12-23 17:36:17,815 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 17:36:17,815 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 69 transitions. [2020-12-23 17:36:17,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-23 17:36:17,816 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:36:17,816 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:36:18,017 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2020-12-23 17:36:18,018 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-23 17:36:18,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:36:18,019 INFO L82 PathProgramCache]: Analyzing trace with hash -1533419909, now seen corresponding path program 2 times [2020-12-23 17:36:18,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:36:18,020 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377449332] [2020-12-23 17:36:18,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:36:18,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:36:18,120 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:36:18,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377449332] [2020-12-23 17:36:18,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [62829004] [2020-12-23 17:36:18,121 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-12-23 17:36:18,202 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-23 17:36:18,202 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 17:36:18,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-23 17:36:18,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:36:18,212 INFO L443 ElimStorePlain]: Different costs {0=[|v_#length_27|], 5=[|v_#valid_31|]} [2020-12-23 17:36:18,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:36:18,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:36:18,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:36:18,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:36:18,301 INFO L348 Elim1Store]: treesize reduction 73, result has 33.0 percent of original size [2020-12-23 17:36:18,302 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 18 treesize of output 46 [2020-12-23 17:36:18,307 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:36:18,357 INFO L625 ElimStorePlain]: treesize reduction 10, result has 85.5 percent of original size [2020-12-23 17:36:18,369 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 103 treesize of output 101 [2020-12-23 17:36:18,372 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:36:18,435 INFO L625 ElimStorePlain]: treesize reduction 22, result has 69.9 percent of original size [2020-12-23 17:36:18,443 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-23 17:36:18,444 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:42, output treesize:36 [2020-12-23 17:36:18,716 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2020-12-23 17:36:18,717 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 17:36:18,717 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 11 [2020-12-23 17:36:18,717 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185438508] [2020-12-23 17:36:18,718 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 17:36:18,718 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:36:18,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 17:36:18,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-12-23 17:36:18,719 INFO L87 Difference]: Start difference. First operand 65 states and 69 transitions. Second operand 4 states. [2020-12-23 17:36:18,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:36:18,795 INFO L93 Difference]: Finished difference Result 68 states and 72 transitions. [2020-12-23 17:36:18,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 17:36:18,796 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2020-12-23 17:36:18,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:36:18,797 INFO L225 Difference]: With dead ends: 68 [2020-12-23 17:36:18,797 INFO L226 Difference]: Without dead ends: 68 [2020-12-23 17:36:18,797 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-12-23 17:36:18,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-12-23 17:36:18,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 66. [2020-12-23 17:36:18,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-12-23 17:36:18,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 70 transitions. [2020-12-23 17:36:18,801 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 70 transitions. Word has length 26 [2020-12-23 17:36:18,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:36:18,801 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 70 transitions. [2020-12-23 17:36:18,801 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 17:36:18,802 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 70 transitions. [2020-12-23 17:36:18,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-12-23 17:36:18,802 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:36:18,803 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:36:19,006 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:36:19,007 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-23 17:36:19,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:36:19,008 INFO L82 PathProgramCache]: Analyzing trace with hash -281744994, now seen corresponding path program 1 times [2020-12-23 17:36:19,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:36:19,008 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245416010] [2020-12-23 17:36:19,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:36:19,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:36:19,134 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-23 17:36:19,135 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245416010] [2020-12-23 17:36:19,135 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [969104439] [2020-12-23 17:36:19,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:36:19,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:36:19,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-23 17:36:19,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:36:19,237 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-23 17:36:19,238 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:36:19,238 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2020-12-23 17:36:19,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632517634] [2020-12-23 17:36:19,239 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 17:36:19,242 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:36:19,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 17:36:19,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2020-12-23 17:36:19,243 INFO L87 Difference]: Start difference. First operand 66 states and 70 transitions. Second operand 10 states. [2020-12-23 17:36:19,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:36:19,295 INFO L93 Difference]: Finished difference Result 71 states and 75 transitions. [2020-12-23 17:36:19,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-23 17:36:19,296 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 30 [2020-12-23 17:36:19,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:36:19,297 INFO L225 Difference]: With dead ends: 71 [2020-12-23 17:36:19,297 INFO L226 Difference]: Without dead ends: 71 [2020-12-23 17:36:19,297 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2020-12-23 17:36:19,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-12-23 17:36:19,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 69. [2020-12-23 17:36:19,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-12-23 17:36:19,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 73 transitions. [2020-12-23 17:36:19,306 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 73 transitions. Word has length 30 [2020-12-23 17:36:19,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:36:19,307 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 73 transitions. [2020-12-23 17:36:19,307 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 17:36:19,307 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 73 transitions. [2020-12-23 17:36:19,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-23 17:36:19,308 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:36:19,309 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:36:19,519 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:36:19,520 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-23 17:36:19,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:36:19,521 INFO L82 PathProgramCache]: Analyzing trace with hash 425603622, now seen corresponding path program 2 times [2020-12-23 17:36:19,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:36:19,521 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375897689] [2020-12-23 17:36:19,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:36:19,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:36:19,611 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-23 17:36:19,611 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375897689] [2020-12-23 17:36:19,612 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [31788615] [2020-12-23 17:36:19,612 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-12-23 17:36:19,691 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-23 17:36:19,691 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 17:36:19,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-23 17:36:19,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:36:19,742 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-23 17:36:19,745 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:36:19,745 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 11 [2020-12-23 17:36:19,747 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449648159] [2020-12-23 17:36:19,748 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-23 17:36:19,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:36:19,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-23 17:36:19,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2020-12-23 17:36:19,751 INFO L87 Difference]: Start difference. First operand 69 states and 73 transitions. Second operand 11 states. [2020-12-23 17:36:19,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:36:19,804 INFO L93 Difference]: Finished difference Result 74 states and 78 transitions. [2020-12-23 17:36:19,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-23 17:36:19,805 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 33 [2020-12-23 17:36:19,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:36:19,806 INFO L225 Difference]: With dead ends: 74 [2020-12-23 17:36:19,806 INFO L226 Difference]: Without dead ends: 74 [2020-12-23 17:36:19,806 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2020-12-23 17:36:19,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-12-23 17:36:19,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 72. [2020-12-23 17:36:19,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-12-23 17:36:19,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 76 transitions. [2020-12-23 17:36:19,809 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 76 transitions. Word has length 33 [2020-12-23 17:36:19,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:36:19,809 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 76 transitions. [2020-12-23 17:36:19,810 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-23 17:36:19,810 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 76 transitions. [2020-12-23 17:36:19,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-12-23 17:36:19,814 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:36:19,814 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:36:20,028 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-12-23 17:36:20,029 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-23 17:36:20,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:36:20,030 INFO L82 PathProgramCache]: Analyzing trace with hash 1938668702, now seen corresponding path program 3 times [2020-12-23 17:36:20,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:36:20,030 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699670633] [2020-12-23 17:36:20,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:36:20,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:36:20,144 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-23 17:36:20,145 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699670633] [2020-12-23 17:36:20,145 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [992780403] [2020-12-23 17:36:20,145 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-12-23 17:36:20,199 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-12-23 17:36:20,200 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 17:36:20,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 17 conjunts are in the unsatisfiable core [2020-12-23 17:36:20,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:36:20,386 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-12-23 17:36:20,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:36:20,387 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7] total 18 [2020-12-23 17:36:20,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291282400] [2020-12-23 17:36:20,387 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-23 17:36:20,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:36:20,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-23 17:36:20,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2020-12-23 17:36:20,388 INFO L87 Difference]: Start difference. First operand 72 states and 76 transitions. Second operand 18 states. [2020-12-23 17:36:21,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:36:21,330 INFO L93 Difference]: Finished difference Result 139 states and 147 transitions. [2020-12-23 17:36:21,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-12-23 17:36:21,331 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 36 [2020-12-23 17:36:21,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:36:21,332 INFO L225 Difference]: With dead ends: 139 [2020-12-23 17:36:21,333 INFO L226 Difference]: Without dead ends: 139 [2020-12-23 17:36:21,333 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=299, Invalid=891, Unknown=0, NotChecked=0, Total=1190 [2020-12-23 17:36:21,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-12-23 17:36:21,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 79. [2020-12-23 17:36:21,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-12-23 17:36:21,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 83 transitions. [2020-12-23 17:36:21,337 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 83 transitions. Word has length 36 [2020-12-23 17:36:21,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:36:21,337 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 83 transitions. [2020-12-23 17:36:21,337 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-12-23 17:36:21,337 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 83 transitions. [2020-12-23 17:36:21,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-12-23 17:36:21,338 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:36:21,338 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:36:21,549 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-12-23 17:36:21,550 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-23 17:36:21,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:36:21,551 INFO L82 PathProgramCache]: Analyzing trace with hash 1210017151, now seen corresponding path program 1 times [2020-12-23 17:36:21,551 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:36:21,552 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855956662] [2020-12-23 17:36:21,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:36:21,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:36:21,698 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-23 17:36:21,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855956662] [2020-12-23 17:36:21,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [280444901] [2020-12-23 17:36:21,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-12-23 17:36:21,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:36:21,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-23 17:36:21,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:36:21,825 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-23 17:36:21,826 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:36:21,826 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 13 [2020-12-23 17:36:21,826 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091972284] [2020-12-23 17:36:21,826 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-12-23 17:36:21,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:36:21,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-12-23 17:36:21,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2020-12-23 17:36:21,828 INFO L87 Difference]: Start difference. First operand 79 states and 83 transitions. Second operand 13 states. [2020-12-23 17:36:21,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:36:21,877 INFO L93 Difference]: Finished difference Result 82 states and 86 transitions. [2020-12-23 17:36:21,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-12-23 17:36:21,877 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 40 [2020-12-23 17:36:21,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:36:21,878 INFO L225 Difference]: With dead ends: 82 [2020-12-23 17:36:21,878 INFO L226 Difference]: Without dead ends: 82 [2020-12-23 17:36:21,879 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2020-12-23 17:36:21,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-12-23 17:36:21,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2020-12-23 17:36:21,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-12-23 17:36:21,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 86 transitions. [2020-12-23 17:36:21,882 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 86 transitions. Word has length 40 [2020-12-23 17:36:21,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:36:21,882 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 86 transitions. [2020-12-23 17:36:21,882 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-12-23 17:36:21,882 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 86 transitions. [2020-12-23 17:36:21,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-12-23 17:36:21,883 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:36:21,883 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:36:22,096 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2020-12-23 17:36:22,097 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-23 17:36:22,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:36:22,098 INFO L82 PathProgramCache]: Analyzing trace with hash -20077561, now seen corresponding path program 2 times [2020-12-23 17:36:22,098 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:36:22,098 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636231175] [2020-12-23 17:36:22,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:36:22,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:36:22,246 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2020-12-23 17:36:22,247 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636231175] [2020-12-23 17:36:22,247 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [431961638] [2020-12-23 17:36:22,247 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:36:22,308 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-23 17:36:22,308 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 17:36:22,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-23 17:36:22,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:36:22,337 INFO L443 ElimStorePlain]: Different costs {0=[|v_#length_28|], 10=[|v_#valid_32|]} [2020-12-23 17:36:22,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:36:22,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:36:22,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:36:22,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:36:22,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:36:22,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:36:22,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:36:22,402 INFO L348 Elim1Store]: treesize reduction 27, result has 50.9 percent of original size [2020-12-23 17:36:22,402 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 18 treesize of output 43 [2020-12-23 17:36:22,404 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:36:22,478 INFO L625 ElimStorePlain]: treesize reduction 10, result has 88.4 percent of original size [2020-12-23 17:36:22,503 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:36:22,504 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 152 treesize of output 150 [2020-12-23 17:36:22,507 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:36:22,507 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:36:22,510 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:36:22,511 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:36:22,511 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:36:22,516 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:36:22,602 INFO L625 ElimStorePlain]: treesize reduction 66, result has 47.2 percent of original size [2020-12-23 17:36:22,609 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-23 17:36:22,610 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:62, output treesize:47 [2020-12-23 17:36:23,333 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2020-12-23 17:36:23,334 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:36:23,334 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 5] total 8 [2020-12-23 17:36:23,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608241395] [2020-12-23 17:36:23,334 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 17:36:23,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:36:23,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 17:36:23,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-12-23 17:36:23,335 INFO L87 Difference]: Start difference. First operand 82 states and 86 transitions. Second operand 10 states. [2020-12-23 17:36:23,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:36:23,709 INFO L93 Difference]: Finished difference Result 87 states and 91 transitions. [2020-12-23 17:36:23,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-23 17:36:23,709 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 43 [2020-12-23 17:36:23,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:36:23,710 INFO L225 Difference]: With dead ends: 87 [2020-12-23 17:36:23,710 INFO L226 Difference]: Without dead ends: 87 [2020-12-23 17:36:23,711 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2020-12-23 17:36:23,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-12-23 17:36:23,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 85. [2020-12-23 17:36:23,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-12-23 17:36:23,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 89 transitions. [2020-12-23 17:36:23,713 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 89 transitions. Word has length 43 [2020-12-23 17:36:23,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:36:23,714 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 89 transitions. [2020-12-23 17:36:23,714 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 17:36:23,714 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 89 transitions. [2020-12-23 17:36:23,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-12-23 17:36:23,715 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:36:23,715 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2020-12-23 17:36:23,924 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:36:23,925 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-23 17:36:23,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:36:23,926 INFO L82 PathProgramCache]: Analyzing trace with hash -676132566, now seen corresponding path program 4 times [2020-12-23 17:36:23,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:36:23,926 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280003967] [2020-12-23 17:36:23,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:36:23,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:36:24,286 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 100 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:36:24,286 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280003967] [2020-12-23 17:36:24,287 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [602023679] [2020-12-23 17:36:24,287 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:36:24,359 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-12-23 17:36:24,359 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 17:36:24,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 28 conjunts are in the unsatisfiable core [2020-12-23 17:36:24,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:36:24,509 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 100 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:36:24,509 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:36:24,509 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17] total 20 [2020-12-23 17:36:24,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056890244] [2020-12-23 17:36:24,510 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-12-23 17:36:24,510 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:36:24,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-12-23 17:36:24,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2020-12-23 17:36:24,511 INFO L87 Difference]: Start difference. First operand 85 states and 89 transitions. Second operand 21 states. [2020-12-23 17:36:25,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:36:25,245 INFO L93 Difference]: Finished difference Result 89 states and 93 transitions. [2020-12-23 17:36:25,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-23 17:36:25,246 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 47 [2020-12-23 17:36:25,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:36:25,247 INFO L225 Difference]: With dead ends: 89 [2020-12-23 17:36:25,247 INFO L226 Difference]: Without dead ends: 89 [2020-12-23 17:36:25,247 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=312, Invalid=878, Unknown=0, NotChecked=0, Total=1190 [2020-12-23 17:36:25,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-12-23 17:36:25,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 86. [2020-12-23 17:36:25,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-12-23 17:36:25,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 90 transitions. [2020-12-23 17:36:25,250 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 90 transitions. Word has length 47 [2020-12-23 17:36:25,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:36:25,250 INFO L481 AbstractCegarLoop]: Abstraction has 86 states and 90 transitions. [2020-12-23 17:36:25,251 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-12-23 17:36:25,251 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 90 transitions. [2020-12-23 17:36:25,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-12-23 17:36:25,251 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:36:25,251 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2020-12-23 17:36:25,465 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2020-12-23 17:36:25,466 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-23 17:36:25,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:36:25,466 INFO L82 PathProgramCache]: Analyzing trace with hash -1578211554, now seen corresponding path program 5 times [2020-12-23 17:36:25,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:36:25,467 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858554959] [2020-12-23 17:36:25,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:36:25,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:36:25,844 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 100 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:36:25,844 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858554959] [2020-12-23 17:36:25,845 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [15776972] [2020-12-23 17:36:25,845 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:36:26,012 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2020-12-23 17:36:26,013 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 17:36:26,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 23 conjunts are in the unsatisfiable core [2020-12-23 17:36:26,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:36:26,348 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 15 proven. 94 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2020-12-23 17:36:26,348 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:36:26,348 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 11] total 24 [2020-12-23 17:36:26,348 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301358592] [2020-12-23 17:36:26,349 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-12-23 17:36:26,349 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:36:26,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-12-23 17:36:26,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=539, Unknown=0, NotChecked=0, Total=650 [2020-12-23 17:36:26,350 INFO L87 Difference]: Start difference. First operand 86 states and 90 transitions. Second operand 26 states. [2020-12-23 17:36:27,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:36:27,543 INFO L93 Difference]: Finished difference Result 94 states and 98 transitions. [2020-12-23 17:36:27,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-12-23 17:36:27,544 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 52 [2020-12-23 17:36:27,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:36:27,545 INFO L225 Difference]: With dead ends: 94 [2020-12-23 17:36:27,545 INFO L226 Difference]: Without dead ends: 94 [2020-12-23 17:36:27,546 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=395, Invalid=1245, Unknown=0, NotChecked=0, Total=1640 [2020-12-23 17:36:27,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-12-23 17:36:27,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 91. [2020-12-23 17:36:27,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-12-23 17:36:27,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 95 transitions. [2020-12-23 17:36:27,549 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 95 transitions. Word has length 52 [2020-12-23 17:36:27,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:36:27,549 INFO L481 AbstractCegarLoop]: Abstraction has 91 states and 95 transitions. [2020-12-23 17:36:27,549 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-12-23 17:36:27,549 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 95 transitions. [2020-12-23 17:36:27,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-12-23 17:36:27,550 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:36:27,550 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1] [2020-12-23 17:36:27,763 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:36:27,764 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-23 17:36:27,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:36:27,765 INFO L82 PathProgramCache]: Analyzing trace with hash 1470341546, now seen corresponding path program 6 times [2020-12-23 17:36:27,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:36:27,765 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708355404] [2020-12-23 17:36:27,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:36:27,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:36:28,139 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 100 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:36:28,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708355404] [2020-12-23 17:36:28,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1180147465] [2020-12-23 17:36:28,140 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:36:28,211 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2020-12-23 17:36:28,211 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 17:36:28,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 12 conjunts are in the unsatisfiable core [2020-12-23 17:36:28,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:36:28,331 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 25 [2020-12-23 17:36:28,332 INFO L348 Elim1Store]: treesize reduction 141, result has 23.8 percent of original size [2020-12-23 17:36:28,332 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 4 case distinctions, treesize of input 18 treesize of output 49 [2020-12-23 17:36:28,334 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:36:28,385 INFO L625 ElimStorePlain]: treesize reduction 10, result has 80.8 percent of original size [2020-12-23 17:36:28,389 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-23 17:36:28,390 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:22, output treesize:24 [2020-12-23 17:36:28,707 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2020-12-23 17:36:28,707 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 17:36:28,708 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [18] total 24 [2020-12-23 17:36:28,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802899961] [2020-12-23 17:36:28,708 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-23 17:36:28,708 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:36:28,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-23 17:36:28,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=548, Unknown=0, NotChecked=0, Total=650 [2020-12-23 17:36:28,709 INFO L87 Difference]: Start difference. First operand 91 states and 95 transitions. Second operand 8 states. [2020-12-23 17:36:28,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:36:28,951 INFO L93 Difference]: Finished difference Result 90 states and 94 transitions. [2020-12-23 17:36:28,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-23 17:36:28,951 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2020-12-23 17:36:28,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:36:28,953 INFO L225 Difference]: With dead ends: 90 [2020-12-23 17:36:28,953 INFO L226 Difference]: Without dead ends: 90 [2020-12-23 17:36:28,954 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=142, Invalid=788, Unknown=0, NotChecked=0, Total=930 [2020-12-23 17:36:28,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-12-23 17:36:28,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 89. [2020-12-23 17:36:28,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-12-23 17:36:28,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 93 transitions. [2020-12-23 17:36:28,957 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 93 transitions. Word has length 57 [2020-12-23 17:36:28,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:36:28,957 INFO L481 AbstractCegarLoop]: Abstraction has 89 states and 93 transitions. [2020-12-23 17:36:28,957 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-23 17:36:28,957 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 93 transitions. [2020-12-23 17:36:28,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-12-23 17:36:28,958 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:36:28,958 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:36:29,158 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,18 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:36:29,159 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-23 17:36:29,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:36:29,160 INFO L82 PathProgramCache]: Analyzing trace with hash -1427960200, now seen corresponding path program 1 times [2020-12-23 17:36:29,160 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:36:29,160 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978431367] [2020-12-23 17:36:29,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:36:29,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:36:29,209 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2020-12-23 17:36:29,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978431367] [2020-12-23 17:36:29,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:36:29,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 17:36:29,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67680331] [2020-12-23 17:36:29,210 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 17:36:29,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:36:29,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 17:36:29,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 17:36:29,211 INFO L87 Difference]: Start difference. First operand 89 states and 93 transitions. Second operand 5 states. [2020-12-23 17:36:29,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:36:29,264 INFO L93 Difference]: Finished difference Result 88 states and 92 transitions. [2020-12-23 17:36:29,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 17:36:29,265 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2020-12-23 17:36:29,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:36:29,266 INFO L225 Difference]: With dead ends: 88 [2020-12-23 17:36:29,266 INFO L226 Difference]: Without dead ends: 88 [2020-12-23 17:36:29,266 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-23 17:36:29,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-12-23 17:36:29,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2020-12-23 17:36:29,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-12-23 17:36:29,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 92 transitions. [2020-12-23 17:36:29,269 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 92 transitions. Word has length 60 [2020-12-23 17:36:29,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:36:29,270 INFO L481 AbstractCegarLoop]: Abstraction has 88 states and 92 transitions. [2020-12-23 17:36:29,270 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 17:36:29,270 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 92 transitions. [2020-12-23 17:36:29,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-12-23 17:36:29,270 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:36:29,271 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:36:29,271 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-12-23 17:36:29,271 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-23 17:36:29,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:36:29,271 INFO L82 PathProgramCache]: Analyzing trace with hash -1427960199, now seen corresponding path program 1 times [2020-12-23 17:36:29,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:36:29,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044421075] [2020-12-23 17:36:29,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:36:29,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:36:29,372 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2020-12-23 17:36:29,372 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044421075] [2020-12-23 17:36:29,373 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [91264604] [2020-12-23 17:36:29,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:36:29,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:36:29,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-23 17:36:29,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:36:29,577 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2020-12-23 17:36:29,578 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:36:29,578 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 13 [2020-12-23 17:36:29,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814184830] [2020-12-23 17:36:29,578 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-12-23 17:36:29,579 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:36:29,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-12-23 17:36:29,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-12-23 17:36:29,579 INFO L87 Difference]: Start difference. First operand 88 states and 92 transitions. Second operand 13 states. [2020-12-23 17:36:29,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:36:29,845 INFO L93 Difference]: Finished difference Result 104 states and 108 transitions. [2020-12-23 17:36:29,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-23 17:36:29,849 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 60 [2020-12-23 17:36:29,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:36:29,850 INFO L225 Difference]: With dead ends: 104 [2020-12-23 17:36:29,850 INFO L226 Difference]: Without dead ends: 104 [2020-12-23 17:36:29,850 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2020-12-23 17:36:29,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-12-23 17:36:29,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 95. [2020-12-23 17:36:29,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-12-23 17:36:29,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 99 transitions. [2020-12-23 17:36:29,853 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 99 transitions. Word has length 60 [2020-12-23 17:36:29,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:36:29,854 INFO L481 AbstractCegarLoop]: Abstraction has 95 states and 99 transitions. [2020-12-23 17:36:29,854 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-12-23 17:36:29,854 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 99 transitions. [2020-12-23 17:36:29,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-12-23 17:36:29,854 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:36:29,855 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:36:30,058 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2020-12-23 17:36:30,059 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-23 17:36:30,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:36:30,060 INFO L82 PathProgramCache]: Analyzing trace with hash -751524970, now seen corresponding path program 1 times [2020-12-23 17:36:30,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:36:30,060 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738448090] [2020-12-23 17:36:30,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:36:30,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:36:30,153 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2020-12-23 17:36:30,153 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738448090] [2020-12-23 17:36:30,153 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2045332230] [2020-12-23 17:36:30,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:36:30,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:36:30,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-23 17:36:30,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:36:30,331 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2020-12-23 17:36:30,331 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:36:30,331 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2020-12-23 17:36:30,331 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553110036] [2020-12-23 17:36:30,332 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 17:36:30,332 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:36:30,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 17:36:30,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2020-12-23 17:36:30,333 INFO L87 Difference]: Start difference. First operand 95 states and 99 transitions. Second operand 9 states. [2020-12-23 17:36:30,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:36:30,379 INFO L93 Difference]: Finished difference Result 104 states and 108 transitions. [2020-12-23 17:36:30,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-23 17:36:30,379 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 66 [2020-12-23 17:36:30,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:36:30,380 INFO L225 Difference]: With dead ends: 104 [2020-12-23 17:36:30,380 INFO L226 Difference]: Without dead ends: 104 [2020-12-23 17:36:30,381 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2020-12-23 17:36:30,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-12-23 17:36:30,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 100. [2020-12-23 17:36:30,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-12-23 17:36:30,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 104 transitions. [2020-12-23 17:36:30,384 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 104 transitions. Word has length 66 [2020-12-23 17:36:30,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:36:30,384 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 104 transitions. [2020-12-23 17:36:30,384 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 17:36:30,384 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 104 transitions. [2020-12-23 17:36:30,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-12-23 17:36:30,385 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:36:30,385 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:36:30,599 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2020-12-23 17:36:30,600 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-23 17:36:30,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:36:30,600 INFO L82 PathProgramCache]: Analyzing trace with hash -1036355294, now seen corresponding path program 2 times [2020-12-23 17:36:30,601 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:36:30,601 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56011894] [2020-12-23 17:36:30,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:36:30,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:36:30,689 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2020-12-23 17:36:30,689 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56011894] [2020-12-23 17:36:30,689 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [517295726] [2020-12-23 17:36:30,689 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:36:30,758 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-23 17:36:30,758 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 17:36:30,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 17:36:30,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:36:30,907 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 28 [2020-12-23 17:36:30,910 INFO L348 Elim1Store]: treesize reduction 234, result has 18.2 percent of original size [2020-12-23 17:36:30,911 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 5 case distinctions, treesize of input 171 treesize of output 198 [2020-12-23 17:36:30,916 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:36:30,999 INFO L625 ElimStorePlain]: treesize reduction 28, result has 69.2 percent of original size [2020-12-23 17:36:31,003 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:31,005 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:31,006 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:31,008 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:31,009 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:31,023 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-12-23 17:36:31,023 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:42, output treesize:63 [2020-12-23 17:36:31,025 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:31,026 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:31,027 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:31,028 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:31,030 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:31,066 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:31,068 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:31,069 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:31,070 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:31,072 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:31,178 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:31,180 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:31,181 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:31,183 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:31,184 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:31,295 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:31,296 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:31,298 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:31,300 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:31,302 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:31,468 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:31,470 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:31,471 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:31,473 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:31,476 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:31,656 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:31,657 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:31,659 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:31,661 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:31,663 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:31,839 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:31,840 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:31,842 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:31,844 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:31,846 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:31,983 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:31,984 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:31,985 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:31,986 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:31,988 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:32,097 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:32,099 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:32,100 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:32,101 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:32,103 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:32,211 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:32,212 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:32,213 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:32,215 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:32,216 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:32,328 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:32,329 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:32,330 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:32,332 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:32,334 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:32,439 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:32,441 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:32,442 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:32,443 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:32,445 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:32,608 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:32,610 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:32,611 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:32,612 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:32,613 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:32,766 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:32,767 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:32,769 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:32,770 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:32,772 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:32,887 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:32,888 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:32,890 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:32,891 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:32,892 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:33,003 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:33,005 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:33,006 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:33,007 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:33,008 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:33,110 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:33,111 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:33,112 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:33,113 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:33,115 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:33,225 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:33,226 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:33,227 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:33,228 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:33,229 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:33,321 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:33,322 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:33,323 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:33,324 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:33,326 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:33,430 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:33,432 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:33,433 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:33,434 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:33,435 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:33,530 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:33,531 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:33,533 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:33,536 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:33,539 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:33,671 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:33,672 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:33,673 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:33,674 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:33,676 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:33,797 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:33,798 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:33,799 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:33,800 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:33,801 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:33,935 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:33,937 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:33,938 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:33,939 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:33,940 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:34,054 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:34,056 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:34,057 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:34,059 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:34,060 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:34,175 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:34,176 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:34,177 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:34,179 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:34,180 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:34,283 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:34,284 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:34,285 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:34,286 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:34,288 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:34,393 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:34,394 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:34,395 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:34,396 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:34,398 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:34,515 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:34,516 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:34,517 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:34,518 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:34,519 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:34,640 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:34,642 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:34,643 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:34,644 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:34,645 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:34,751 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:34,752 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:34,753 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:34,755 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:34,756 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:34,861 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:34,862 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:34,863 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:34,864 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:34,865 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:34,970 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:34,971 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:34,972 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:34,973 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:34,974 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:35,076 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:35,077 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:35,078 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:35,079 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:35,081 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:35,185 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:35,187 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:35,188 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:35,189 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:35,190 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:35,287 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:35,288 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:35,289 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:35,290 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:35,292 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:35,395 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:35,396 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:35,397 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:35,398 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:35,399 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:35,516 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:35,518 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:35,519 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:35,520 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:35,521 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:35,636 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:35,638 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:35,639 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:35,640 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:35,641 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:35,750 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:35,751 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:35,752 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:35,753 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:35,754 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:35,867 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:35,868 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:35,869 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:35,871 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:35,872 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:35,975 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:35,976 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:35,977 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:35,978 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:35,979 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:36,079 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:36,081 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:36,082 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:36,083 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:36,084 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:36,193 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:36,194 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:36,195 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:36,196 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:36,197 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:36,304 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:36,305 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:36,306 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:36,307 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:36,309 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:36,406 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:36,407 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:36,408 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:36,409 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:36,409 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:36,506 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:36,508 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:36,509 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:36,510 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:36,511 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:36,601 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:36,602 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:36,603 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:36,604 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:36,605 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:36,710 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:36,711 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:36,712 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:36,713 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:36,716 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:36,830 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:36,831 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:36,832 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:36,834 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:36,835 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:36,939 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:36,940 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:36,941 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:36,942 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:36,944 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:37,049 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:37,050 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:37,051 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:37,052 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:37,054 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:37,163 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:37,164 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:37,165 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:37,166 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:37,167 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:37,270 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:37,271 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:37,272 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:37,283 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:37,284 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:37,389 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:37,390 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:37,391 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:37,392 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:37,393 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:37,497 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:37,498 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:37,499 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:37,500 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:37,502 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:37,613 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:37,614 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:37,615 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:37,616 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:37,618 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:37,730 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:37,731 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:37,733 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:37,734 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:37,735 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:37,850 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:37,852 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:37,853 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:37,854 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:37,855 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:37,940 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:37,941 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:37,942 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:37,942 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:37,943 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:38,035 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:38,036 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:38,037 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:38,038 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:38,039 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:38,125 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:38,125 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:38,126 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:38,127 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:38,127 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:38,229 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:38,230 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:38,231 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:38,232 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:38,232 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:38,311 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:38,312 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:38,313 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:38,314 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:38,315 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:38,399 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:38,400 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:38,401 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:38,401 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:38,406 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:38,487 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:38,488 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:38,489 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:38,489 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:38,490 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:38,575 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:38,576 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:38,576 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:38,577 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:38,577 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:38,671 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:38,672 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:38,673 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:38,674 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:38,675 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:38,774 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:38,774 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:38,775 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:38,776 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:38,777 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:38,857 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:38,857 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:38,858 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-23 17:36:38,859 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-23 17:36:38,860 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-23 17:36:39,015 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2020-12-23 17:36:39,016 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 17:36:39,016 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [9] total 10 [2020-12-23 17:36:39,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446010167] [2020-12-23 17:36:39,016 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 17:36:39,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:36:39,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 17:36:39,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2020-12-23 17:36:39,017 INFO L87 Difference]: Start difference. First operand 100 states and 104 transitions. Second operand 3 states. [2020-12-23 17:36:39,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:36:39,046 INFO L93 Difference]: Finished difference Result 99 states and 103 transitions. [2020-12-23 17:36:39,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 17:36:39,047 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 71 [2020-12-23 17:36:39,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:36:39,047 INFO L225 Difference]: With dead ends: 99 [2020-12-23 17:36:39,048 INFO L226 Difference]: Without dead ends: 99 [2020-12-23 17:36:39,048 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 2 SyntacticMatches, 69 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 420 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2020-12-23 17:36:39,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-12-23 17:36:39,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2020-12-23 17:36:39,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-12-23 17:36:39,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 103 transitions. [2020-12-23 17:36:39,051 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 103 transitions. Word has length 71 [2020-12-23 17:36:39,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:36:39,051 INFO L481 AbstractCegarLoop]: Abstraction has 99 states and 103 transitions. [2020-12-23 17:36:39,051 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 17:36:39,051 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 103 transitions. [2020-12-23 17:36:39,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-12-23 17:36:39,052 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:36:39,052 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:36:39,266 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2020-12-23 17:36:39,267 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-23 17:36:39,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:36:39,268 INFO L82 PathProgramCache]: Analyzing trace with hash -1036355293, now seen corresponding path program 1 times [2020-12-23 17:36:39,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:36:39,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370274610] [2020-12-23 17:36:39,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:36:39,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:36:39,360 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2020-12-23 17:36:39,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370274610] [2020-12-23 17:36:39,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1517890894] [2020-12-23 17:36:39,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:36:39,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:36:39,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-23 17:36:39,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:36:39,531 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2020-12-23 17:36:39,531 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:36:39,531 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2020-12-23 17:36:39,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534796010] [2020-12-23 17:36:39,532 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 17:36:39,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:36:39,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 17:36:39,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2020-12-23 17:36:39,533 INFO L87 Difference]: Start difference. First operand 99 states and 103 transitions. Second operand 10 states. [2020-12-23 17:36:39,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:36:39,599 INFO L93 Difference]: Finished difference Result 108 states and 112 transitions. [2020-12-23 17:36:39,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-23 17:36:39,600 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 71 [2020-12-23 17:36:39,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:36:39,601 INFO L225 Difference]: With dead ends: 108 [2020-12-23 17:36:39,601 INFO L226 Difference]: Without dead ends: 108 [2020-12-23 17:36:39,601 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2020-12-23 17:36:39,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-12-23 17:36:39,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 104. [2020-12-23 17:36:39,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-12-23 17:36:39,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 108 transitions. [2020-12-23 17:36:39,604 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 108 transitions. Word has length 71 [2020-12-23 17:36:39,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:36:39,604 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 108 transitions. [2020-12-23 17:36:39,604 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 17:36:39,605 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 108 transitions. [2020-12-23 17:36:39,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-12-23 17:36:39,605 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:36:39,605 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:36:39,816 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2020-12-23 17:36:39,817 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-23 17:36:39,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:36:39,818 INFO L82 PathProgramCache]: Analyzing trace with hash -713540841, now seen corresponding path program 2 times [2020-12-23 17:36:39,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:36:39,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820349587] [2020-12-23 17:36:39,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:36:39,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:36:39,910 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2020-12-23 17:36:39,911 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820349587] [2020-12-23 17:36:39,911 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [538066616] [2020-12-23 17:36:39,911 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:36:39,976 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-23 17:36:39,976 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 17:36:39,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-23 17:36:39,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:36:39,984 INFO L443 ElimStorePlain]: Different costs {0=[|v_#length_30|], 5=[|v_#valid_34|]} [2020-12-23 17:36:39,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:36:39,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:36:39,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:36:39,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:36:40,063 INFO L348 Elim1Store]: treesize reduction 73, result has 33.0 percent of original size [2020-12-23 17:36:40,063 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 18 treesize of output 46 [2020-12-23 17:36:40,065 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:36:40,121 INFO L625 ElimStorePlain]: treesize reduction 10, result has 85.5 percent of original size [2020-12-23 17:36:40,133 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 235 treesize of output 227 [2020-12-23 17:36:40,152 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:36:40,199 INFO L625 ElimStorePlain]: treesize reduction 4, result has 92.7 percent of original size [2020-12-23 17:36:40,206 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-23 17:36:40,207 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:42, output treesize:36 [2020-12-23 17:36:40,841 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2020-12-23 17:36:40,841 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 17:36:40,841 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [10] total 12 [2020-12-23 17:36:40,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133962823] [2020-12-23 17:36:40,842 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 17:36:40,842 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:36:40,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 17:36:40,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2020-12-23 17:36:40,843 INFO L87 Difference]: Start difference. First operand 104 states and 108 transitions. Second operand 4 states. [2020-12-23 17:36:40,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:36:40,915 INFO L93 Difference]: Finished difference Result 107 states and 111 transitions. [2020-12-23 17:36:40,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 17:36:40,916 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 76 [2020-12-23 17:36:40,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:36:40,917 INFO L225 Difference]: With dead ends: 107 [2020-12-23 17:36:40,917 INFO L226 Difference]: Without dead ends: 107 [2020-12-23 17:36:40,917 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2020-12-23 17:36:40,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-12-23 17:36:40,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 105. [2020-12-23 17:36:40,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-12-23 17:36:40,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 109 transitions. [2020-12-23 17:36:40,920 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 109 transitions. Word has length 76 [2020-12-23 17:36:40,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:36:40,920 INFO L481 AbstractCegarLoop]: Abstraction has 105 states and 109 transitions. [2020-12-23 17:36:40,920 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 17:36:40,921 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 109 transitions. [2020-12-23 17:36:40,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-12-23 17:36:40,921 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:36:40,921 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 7, 7, 7, 7, 7, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:36:41,135 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:36:41,136 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-23 17:36:41,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:36:41,137 INFO L82 PathProgramCache]: Analyzing trace with hash -1708759558, now seen corresponding path program 1 times [2020-12-23 17:36:41,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:36:41,137 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644722649] [2020-12-23 17:36:41,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:36:41,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:36:41,232 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2020-12-23 17:36:41,233 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644722649] [2020-12-23 17:36:41,233 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1729530369] [2020-12-23 17:36:41,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:36:41,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:36:41,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-23 17:36:41,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:36:41,423 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2020-12-23 17:36:41,424 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:36:41,424 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 11 [2020-12-23 17:36:41,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263404248] [2020-12-23 17:36:41,424 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-23 17:36:41,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:36:41,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-23 17:36:41,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2020-12-23 17:36:41,425 INFO L87 Difference]: Start difference. First operand 105 states and 109 transitions. Second operand 11 states. [2020-12-23 17:36:41,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:36:41,509 INFO L93 Difference]: Finished difference Result 114 states and 118 transitions. [2020-12-23 17:36:41,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-23 17:36:41,510 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 80 [2020-12-23 17:36:41,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:36:41,511 INFO L225 Difference]: With dead ends: 114 [2020-12-23 17:36:41,511 INFO L226 Difference]: Without dead ends: 114 [2020-12-23 17:36:41,512 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2020-12-23 17:36:41,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-12-23 17:36:41,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 110. [2020-12-23 17:36:41,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-12-23 17:36:41,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 114 transitions. [2020-12-23 17:36:41,515 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 114 transitions. Word has length 80 [2020-12-23 17:36:41,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:36:41,515 INFO L481 AbstractCegarLoop]: Abstraction has 110 states and 114 transitions. [2020-12-23 17:36:41,515 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-23 17:36:41,516 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 114 transitions. [2020-12-23 17:36:41,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-12-23 17:36:41,516 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:36:41,517 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 8, 8, 8, 8, 8, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:36:41,729 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2020-12-23 17:36:41,730 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-23 17:36:41,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:36:41,731 INFO L82 PathProgramCache]: Analyzing trace with hash 265393798, now seen corresponding path program 2 times [2020-12-23 17:36:41,731 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:36:41,731 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018579046] [2020-12-23 17:36:41,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:36:41,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:36:41,859 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2020-12-23 17:36:41,859 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018579046] [2020-12-23 17:36:41,859 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1136551551] [2020-12-23 17:36:41,860 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:36:41,960 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-23 17:36:41,961 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 17:36:41,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-23 17:36:41,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:36:42,066 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2020-12-23 17:36:42,067 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:36:42,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 12 [2020-12-23 17:36:42,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633813858] [2020-12-23 17:36:42,069 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-23 17:36:42,069 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:36:42,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-23 17:36:42,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2020-12-23 17:36:42,070 INFO L87 Difference]: Start difference. First operand 110 states and 114 transitions. Second operand 12 states. [2020-12-23 17:36:42,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:36:42,167 INFO L93 Difference]: Finished difference Result 119 states and 123 transitions. [2020-12-23 17:36:42,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-23 17:36:42,168 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 85 [2020-12-23 17:36:42,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:36:42,169 INFO L225 Difference]: With dead ends: 119 [2020-12-23 17:36:42,169 INFO L226 Difference]: Without dead ends: 119 [2020-12-23 17:36:42,169 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2020-12-23 17:36:42,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-12-23 17:36:42,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 115. [2020-12-23 17:36:42,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-12-23 17:36:42,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 119 transitions. [2020-12-23 17:36:42,176 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 119 transitions. Word has length 85 [2020-12-23 17:36:42,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:36:42,177 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 119 transitions. [2020-12-23 17:36:42,177 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-23 17:36:42,177 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 119 transitions. [2020-12-23 17:36:42,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-12-23 17:36:42,177 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:36:42,178 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:36:42,378 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:36:42,378 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-23 17:36:42,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:36:42,379 INFO L82 PathProgramCache]: Analyzing trace with hash 1149951354, now seen corresponding path program 3 times [2020-12-23 17:36:42,379 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:36:42,380 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177754318] [2020-12-23 17:36:42,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:36:42,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:36:42,515 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 0 proven. 189 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2020-12-23 17:36:42,515 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177754318] [2020-12-23 17:36:42,515 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1316598699] [2020-12-23 17:36:42,516 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:36:42,582 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-12-23 17:36:42,582 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 17:36:42,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 17 conjunts are in the unsatisfiable core [2020-12-23 17:36:42,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:36:42,829 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 25 proven. 2 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2020-12-23 17:36:42,829 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:36:42,829 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 7] total 19 [2020-12-23 17:36:42,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695724315] [2020-12-23 17:36:42,830 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-12-23 17:36:42,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:36:42,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-12-23 17:36:42,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2020-12-23 17:36:42,831 INFO L87 Difference]: Start difference. First operand 115 states and 119 transitions. Second operand 19 states. [2020-12-23 17:36:43,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:36:43,674 INFO L93 Difference]: Finished difference Result 128 states and 132 transitions. [2020-12-23 17:36:43,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-23 17:36:43,674 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 90 [2020-12-23 17:36:43,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:36:43,675 INFO L225 Difference]: With dead ends: 128 [2020-12-23 17:36:43,676 INFO L226 Difference]: Without dead ends: 128 [2020-12-23 17:36:43,676 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=284, Invalid=772, Unknown=0, NotChecked=0, Total=1056 [2020-12-23 17:36:43,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-12-23 17:36:43,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 124. [2020-12-23 17:36:43,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-12-23 17:36:43,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 128 transitions. [2020-12-23 17:36:43,680 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 128 transitions. Word has length 90 [2020-12-23 17:36:43,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:36:43,680 INFO L481 AbstractCegarLoop]: Abstraction has 124 states and 128 transitions. [2020-12-23 17:36:43,680 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-12-23 17:36:43,680 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 128 transitions. [2020-12-23 17:36:43,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-12-23 17:36:43,681 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:36:43,681 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:36:43,895 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2020-12-23 17:36:43,896 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-23 17:36:43,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:36:43,897 INFO L82 PathProgramCache]: Analyzing trace with hash -1301409354, now seen corresponding path program 1 times [2020-12-23 17:36:43,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:36:43,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965223311] [2020-12-23 17:36:43,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:36:43,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:36:44,051 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2020-12-23 17:36:44,051 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965223311] [2020-12-23 17:36:44,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [344261354] [2020-12-23 17:36:44,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:36:44,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:36:44,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-23 17:36:44,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:36:44,159 INFO L443 ElimStorePlain]: Different costs {0=[|v_#length_31|], 5=[|v_#valid_35|]} [2020-12-23 17:36:44,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:36:44,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:36:44,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:36:44,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:36:44,231 INFO L348 Elim1Store]: treesize reduction 73, result has 33.0 percent of original size [2020-12-23 17:36:44,232 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 18 treesize of output 46 [2020-12-23 17:36:44,233 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:36:44,287 INFO L625 ElimStorePlain]: treesize reduction 10, result has 85.5 percent of original size [2020-12-23 17:36:44,296 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 47 treesize of output 45 [2020-12-23 17:36:44,298 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2020-12-23 17:36:44,357 INFO L625 ElimStorePlain]: treesize reduction 30, result has 63.0 percent of original size [2020-12-23 17:36:44,364 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-23 17:36:44,364 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:42, output treesize:36 [2020-12-23 17:36:45,174 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2020-12-23 17:36:45,175 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:36:45,175 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2020-12-23 17:36:45,175 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764730543] [2020-12-23 17:36:45,175 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-23 17:36:45,176 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:36:45,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-23 17:36:45,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-12-23 17:36:45,176 INFO L87 Difference]: Start difference. First operand 124 states and 128 transitions. Second operand 8 states. [2020-12-23 17:36:45,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:36:45,316 INFO L93 Difference]: Finished difference Result 127 states and 131 transitions. [2020-12-23 17:36:45,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 17:36:45,317 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 96 [2020-12-23 17:36:45,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:36:45,318 INFO L225 Difference]: With dead ends: 127 [2020-12-23 17:36:45,318 INFO L226 Difference]: Without dead ends: 127 [2020-12-23 17:36:45,318 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-12-23 17:36:45,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-12-23 17:36:45,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 125. [2020-12-23 17:36:45,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-12-23 17:36:45,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 129 transitions. [2020-12-23 17:36:45,321 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 129 transitions. Word has length 96 [2020-12-23 17:36:45,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:36:45,322 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 129 transitions. [2020-12-23 17:36:45,322 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-23 17:36:45,322 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 129 transitions. [2020-12-23 17:36:45,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-12-23 17:36:45,323 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:36:45,323 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:36:45,536 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,27 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:36:45,537 INFO L429 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-23 17:36:45,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:36:45,538 INFO L82 PathProgramCache]: Analyzing trace with hash -989735655, now seen corresponding path program 4 times [2020-12-23 17:36:45,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:36:45,538 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907945223] [2020-12-23 17:36:45,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:36:45,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:36:45,853 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 164 proven. 80 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2020-12-23 17:36:45,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907945223] [2020-12-23 17:36:45,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1050656378] [2020-12-23 17:36:45,853 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:36:45,944 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-12-23 17:36:45,945 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 17:36:45,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 28 conjunts are in the unsatisfiable core [2020-12-23 17:36:45,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:36:46,467 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 164 proven. 80 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2020-12-23 17:36:46,467 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:36:46,467 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17] total 33 [2020-12-23 17:36:46,467 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15311096] [2020-12-23 17:36:46,468 INFO L461 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-12-23 17:36:46,468 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:36:46,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-12-23 17:36:46,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=923, Unknown=0, NotChecked=0, Total=1122 [2020-12-23 17:36:46,469 INFO L87 Difference]: Start difference. First operand 125 states and 129 transitions. Second operand 34 states. [2020-12-23 17:36:47,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:36:47,511 INFO L93 Difference]: Finished difference Result 133 states and 137 transitions. [2020-12-23 17:36:47,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-23 17:36:47,512 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 100 [2020-12-23 17:36:47,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:36:47,513 INFO L225 Difference]: With dead ends: 133 [2020-12-23 17:36:47,513 INFO L226 Difference]: Without dead ends: 133 [2020-12-23 17:36:47,516 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 537 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=523, Invalid=1733, Unknown=0, NotChecked=0, Total=2256 [2020-12-23 17:36:47,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-12-23 17:36:47,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 129. [2020-12-23 17:36:47,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2020-12-23 17:36:47,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 133 transitions. [2020-12-23 17:36:47,519 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 133 transitions. Word has length 100 [2020-12-23 17:36:47,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:36:47,520 INFO L481 AbstractCegarLoop]: Abstraction has 129 states and 133 transitions. [2020-12-23 17:36:47,520 INFO L482 AbstractCegarLoop]: Interpolant automaton has 34 states. [2020-12-23 17:36:47,520 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 133 transitions. [2020-12-23 17:36:47,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-23 17:36:47,521 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:36:47,521 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:36:47,735 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2020-12-23 17:36:47,735 INFO L429 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-23 17:36:47,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:36:47,736 INFO L82 PathProgramCache]: Analyzing trace with hash -617034237, now seen corresponding path program 2 times [2020-12-23 17:36:47,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:36:47,736 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947365657] [2020-12-23 17:36:47,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:36:47,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:36:47,905 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2020-12-23 17:36:47,905 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947365657] [2020-12-23 17:36:47,905 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [300809487] [2020-12-23 17:36:47,906 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:36:47,965 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-23 17:36:47,966 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 17:36:47,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-23 17:36:47,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:36:47,972 INFO L443 ElimStorePlain]: Different costs {0=[|v_#length_32|], 5=[|v_#valid_36|]} [2020-12-23 17:36:47,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:36:47,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:36:47,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:36:47,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:36:48,055 INFO L348 Elim1Store]: treesize reduction 73, result has 33.0 percent of original size [2020-12-23 17:36:48,055 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 18 treesize of output 46 [2020-12-23 17:36:48,057 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:36:48,124 INFO L625 ElimStorePlain]: treesize reduction 10, result has 86.1 percent of original size [2020-12-23 17:36:48,135 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 69 treesize of output 67 [2020-12-23 17:36:48,138 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:36:48,211 INFO L625 ElimStorePlain]: treesize reduction 26, result has 67.5 percent of original size [2020-12-23 17:36:48,217 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-23 17:36:48,217 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:45, output treesize:39 [2020-12-23 17:36:49,190 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2020-12-23 17:36:49,191 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:36:49,191 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 9 [2020-12-23 17:36:49,191 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491488440] [2020-12-23 17:36:49,191 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-23 17:36:49,192 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:36:49,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-23 17:36:49,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-12-23 17:36:49,192 INFO L87 Difference]: Start difference. First operand 129 states and 133 transitions. Second operand 11 states. [2020-12-23 17:36:49,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:36:49,661 INFO L93 Difference]: Finished difference Result 134 states and 138 transitions. [2020-12-23 17:36:49,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-23 17:36:49,662 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 101 [2020-12-23 17:36:49,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:36:49,663 INFO L225 Difference]: With dead ends: 134 [2020-12-23 17:36:49,663 INFO L226 Difference]: Without dead ends: 134 [2020-12-23 17:36:49,663 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2020-12-23 17:36:49,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-12-23 17:36:49,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 132. [2020-12-23 17:36:49,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-12-23 17:36:49,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 136 transitions. [2020-12-23 17:36:49,667 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 136 transitions. Word has length 101 [2020-12-23 17:36:49,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:36:49,667 INFO L481 AbstractCegarLoop]: Abstraction has 132 states and 136 transitions. [2020-12-23 17:36:49,667 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-23 17:36:49,668 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 136 transitions. [2020-12-23 17:36:49,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-12-23 17:36:49,668 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:36:49,668 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:36:49,877 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,29 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:36:49,877 INFO L429 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-23 17:36:49,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:36:49,878 INFO L82 PathProgramCache]: Analyzing trace with hash -699686170, now seen corresponding path program 5 times [2020-12-23 17:36:49,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:36:49,878 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586275081] [2020-12-23 17:36:49,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:36:49,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:36:50,215 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 164 proven. 92 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2020-12-23 17:36:50,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586275081] [2020-12-23 17:36:50,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1344459221] [2020-12-23 17:36:50,215 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:36:54,177 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2020-12-23 17:36:54,178 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 17:36:54,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 22 conjunts are in the unsatisfiable core [2020-12-23 17:36:54,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:36:54,194 INFO L443 ElimStorePlain]: Different costs {0=[|v_#length_33|], 10=[|v_#valid_37|]} [2020-12-23 17:36:54,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:36:54,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:36:54,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:36:54,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:36:54,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:36:54,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:36:54,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:36:54,263 INFO L348 Elim1Store]: treesize reduction 27, result has 50.9 percent of original size [2020-12-23 17:36:54,263 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 18 treesize of output 43 [2020-12-23 17:36:54,265 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:36:54,333 INFO L625 ElimStorePlain]: treesize reduction 10, result has 88.0 percent of original size [2020-12-23 17:36:54,355 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:36:54,356 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 207 treesize of output 197 [2020-12-23 17:36:54,358 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:36:54,359 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:36:54,361 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:36:54,362 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-23 17:36:54,363 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:36:54,445 INFO L625 ElimStorePlain]: treesize reduction 34, result has 62.2 percent of original size [2020-12-23 17:36:54,453 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-23 17:36:54,454 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:59, output treesize:44 [2020-12-23 17:36:55,738 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2020-12-23 17:36:55,738 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:36:55,738 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 6] total 23 [2020-12-23 17:36:55,739 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159048900] [2020-12-23 17:36:55,739 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-12-23 17:36:55,739 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:36:55,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-12-23 17:36:55,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=499, Unknown=0, NotChecked=0, Total=600 [2020-12-23 17:36:55,740 INFO L87 Difference]: Start difference. First operand 132 states and 136 transitions. Second operand 25 states. [2020-12-23 17:36:57,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:36:57,265 INFO L93 Difference]: Finished difference Result 136 states and 140 transitions. [2020-12-23 17:36:57,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-12-23 17:36:57,266 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 105 [2020-12-23 17:36:57,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:36:57,267 INFO L225 Difference]: With dead ends: 136 [2020-12-23 17:36:57,267 INFO L226 Difference]: Without dead ends: 136 [2020-12-23 17:36:57,268 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=370, Invalid=1190, Unknown=0, NotChecked=0, Total=1560 [2020-12-23 17:36:57,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-12-23 17:36:57,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 133. [2020-12-23 17:36:57,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-12-23 17:36:57,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 137 transitions. [2020-12-23 17:36:57,271 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 137 transitions. Word has length 105 [2020-12-23 17:36:57,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:36:57,272 INFO L481 AbstractCegarLoop]: Abstraction has 133 states and 137 transitions. [2020-12-23 17:36:57,272 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-12-23 17:36:57,272 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 137 transitions. [2020-12-23 17:36:57,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-12-23 17:36:57,273 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:36:57,273 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:36:57,486 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2020-12-23 17:36:57,486 INFO L429 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-23 17:36:57,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:36:57,487 INFO L82 PathProgramCache]: Analyzing trace with hash 1508601145, now seen corresponding path program 6 times [2020-12-23 17:36:57,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:36:57,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234431990] [2020-12-23 17:36:57,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:36:57,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:36:57,839 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 164 proven. 109 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2020-12-23 17:36:57,839 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234431990] [2020-12-23 17:36:57,839 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [693696964] [2020-12-23 17:36:57,840 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:36:57,915 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2020-12-23 17:36:57,915 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 17:36:57,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-23 17:36:57,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:36:57,923 INFO L443 ElimStorePlain]: Different costs {0=[|v_#length_34|], 10=[|v_#valid_38|]} [2020-12-23 17:36:57,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:36:57,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:36:57,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:36:57,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:36:57,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:36:57,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:36:57,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:36:58,005 INFO L348 Elim1Store]: treesize reduction 27, result has 50.9 percent of original size [2020-12-23 17:36:58,005 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 18 treesize of output 43 [2020-12-23 17:36:58,006 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:36:58,073 INFO L625 ElimStorePlain]: treesize reduction 10, result has 88.0 percent of original size [2020-12-23 17:36:58,095 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:36:58,096 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 194 treesize of output 192 [2020-12-23 17:36:58,099 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:36:58,100 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:36:58,101 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:36:58,102 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:36:58,103 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:36:58,105 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:36:58,269 WARN L197 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 37 [2020-12-23 17:36:58,270 INFO L625 ElimStorePlain]: treesize reduction 109, result has 33.9 percent of original size [2020-12-23 17:36:58,275 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-23 17:36:58,276 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:59, output treesize:44 [2020-12-23 17:36:59,584 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 401 trivial. 0 not checked. [2020-12-23 17:36:59,585 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 17:36:59,585 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [18] total 24 [2020-12-23 17:36:59,585 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777436716] [2020-12-23 17:36:59,586 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-23 17:36:59,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:36:59,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-23 17:36:59,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=548, Unknown=0, NotChecked=0, Total=650 [2020-12-23 17:36:59,586 INFO L87 Difference]: Start difference. First operand 133 states and 137 transitions. Second operand 8 states. [2020-12-23 17:37:00,529 WARN L197 SmtUtils]: Spent 638.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 46 [2020-12-23 17:37:00,842 WARN L197 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 48 [2020-12-23 17:37:00,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:37:00,883 INFO L93 Difference]: Finished difference Result 132 states and 136 transitions. [2020-12-23 17:37:00,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-23 17:37:00,884 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 110 [2020-12-23 17:37:00,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:37:00,885 INFO L225 Difference]: With dead ends: 132 [2020-12-23 17:37:00,885 INFO L226 Difference]: Without dead ends: 132 [2020-12-23 17:37:00,886 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=142, Invalid=788, Unknown=0, NotChecked=0, Total=930 [2020-12-23 17:37:00,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-12-23 17:37:00,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 131. [2020-12-23 17:37:00,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-12-23 17:37:00,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 135 transitions. [2020-12-23 17:37:00,890 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 135 transitions. Word has length 110 [2020-12-23 17:37:00,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:37:00,890 INFO L481 AbstractCegarLoop]: Abstraction has 131 states and 135 transitions. [2020-12-23 17:37:00,890 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-23 17:37:00,891 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 135 transitions. [2020-12-23 17:37:00,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-12-23 17:37:00,891 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:37:00,891 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:37:01,101 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,31 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:37:01,102 INFO L429 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-23 17:37:01,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:37:01,102 INFO L82 PathProgramCache]: Analyzing trace with hash 197443008, now seen corresponding path program 1 times [2020-12-23 17:37:01,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:37:01,103 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727519094] [2020-12-23 17:37:01,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:37:01,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:37:01,166 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2020-12-23 17:37:01,166 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727519094] [2020-12-23 17:37:01,167 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:37:01,167 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 17:37:01,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83822934] [2020-12-23 17:37:01,167 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 17:37:01,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:37:01,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 17:37:01,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 17:37:01,168 INFO L87 Difference]: Start difference. First operand 131 states and 135 transitions. Second operand 5 states. [2020-12-23 17:37:01,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:37:01,215 INFO L93 Difference]: Finished difference Result 130 states and 134 transitions. [2020-12-23 17:37:01,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 17:37:01,216 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 113 [2020-12-23 17:37:01,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:37:01,217 INFO L225 Difference]: With dead ends: 130 [2020-12-23 17:37:01,217 INFO L226 Difference]: Without dead ends: 130 [2020-12-23 17:37:01,217 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-23 17:37:01,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-12-23 17:37:01,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2020-12-23 17:37:01,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-12-23 17:37:01,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 134 transitions. [2020-12-23 17:37:01,220 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 134 transitions. Word has length 113 [2020-12-23 17:37:01,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:37:01,220 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 134 transitions. [2020-12-23 17:37:01,220 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 17:37:01,221 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 134 transitions. [2020-12-23 17:37:01,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-12-23 17:37:01,221 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:37:01,221 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:37:01,221 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-12-23 17:37:01,222 INFO L429 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-23 17:37:01,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:37:01,222 INFO L82 PathProgramCache]: Analyzing trace with hash 197443009, now seen corresponding path program 1 times [2020-12-23 17:37:01,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:37:01,222 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452216643] [2020-12-23 17:37:01,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:37:01,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:37:01,310 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2020-12-23 17:37:01,311 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452216643] [2020-12-23 17:37:01,311 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1345360478] [2020-12-23 17:37:01,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:37:01,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:37:01,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-23 17:37:01,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:37:01,542 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2020-12-23 17:37:01,542 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:37:01,542 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2020-12-23 17:37:01,542 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750958307] [2020-12-23 17:37:01,543 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-23 17:37:01,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:37:01,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-23 17:37:01,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2020-12-23 17:37:01,544 INFO L87 Difference]: Start difference. First operand 130 states and 134 transitions. Second operand 8 states. [2020-12-23 17:37:01,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:37:01,586 INFO L93 Difference]: Finished difference Result 139 states and 143 transitions. [2020-12-23 17:37:01,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-23 17:37:01,587 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 113 [2020-12-23 17:37:01,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:37:01,588 INFO L225 Difference]: With dead ends: 139 [2020-12-23 17:37:01,588 INFO L226 Difference]: Without dead ends: 139 [2020-12-23 17:37:01,588 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2020-12-23 17:37:01,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-12-23 17:37:01,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 135. [2020-12-23 17:37:01,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2020-12-23 17:37:01,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 139 transitions. [2020-12-23 17:37:01,592 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 139 transitions. Word has length 113 [2020-12-23 17:37:01,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:37:01,592 INFO L481 AbstractCegarLoop]: Abstraction has 135 states and 139 transitions. [2020-12-23 17:37:01,592 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-23 17:37:01,592 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 139 transitions. [2020-12-23 17:37:01,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-12-23 17:37:01,593 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:37:01,593 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:37:01,808 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2020-12-23 17:37:01,809 INFO L429 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-23 17:37:01,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:37:01,810 INFO L82 PathProgramCache]: Analyzing trace with hash -1842707180, now seen corresponding path program 2 times [2020-12-23 17:37:01,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:37:01,810 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855469717] [2020-12-23 17:37:01,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:37:01,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:37:01,901 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2020-12-23 17:37:01,902 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855469717] [2020-12-23 17:37:01,902 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [109880120] [2020-12-23 17:37:01,902 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:37:01,975 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-23 17:37:01,975 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 17:37:01,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-23 17:37:01,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:37:02,076 INFO L348 Elim1Store]: treesize reduction 141, result has 23.8 percent of original size [2020-12-23 17:37:02,077 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 4 case distinctions, treesize of input 18 treesize of output 49 [2020-12-23 17:37:02,078 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:37:02,128 INFO L625 ElimStorePlain]: treesize reduction 10, result has 80.8 percent of original size [2020-12-23 17:37:02,134 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-23 17:37:02,135 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:22, output treesize:24 [2020-12-23 17:37:02,361 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2020-12-23 17:37:02,362 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 17:37:02,362 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 11 [2020-12-23 17:37:02,362 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006588249] [2020-12-23 17:37:02,362 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 17:37:02,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:37:02,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 17:37:02,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-12-23 17:37:02,363 INFO L87 Difference]: Start difference. First operand 135 states and 139 transitions. Second operand 5 states. [2020-12-23 17:37:02,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:37:02,459 INFO L93 Difference]: Finished difference Result 142 states and 146 transitions. [2020-12-23 17:37:02,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 17:37:02,460 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 118 [2020-12-23 17:37:02,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:37:02,461 INFO L225 Difference]: With dead ends: 142 [2020-12-23 17:37:02,461 INFO L226 Difference]: Without dead ends: 142 [2020-12-23 17:37:02,461 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2020-12-23 17:37:02,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2020-12-23 17:37:02,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 137. [2020-12-23 17:37:02,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2020-12-23 17:37:02,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 141 transitions. [2020-12-23 17:37:02,465 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 141 transitions. Word has length 118 [2020-12-23 17:37:02,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:37:02,465 INFO L481 AbstractCegarLoop]: Abstraction has 137 states and 141 transitions. [2020-12-23 17:37:02,465 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 17:37:02,465 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 141 transitions. [2020-12-23 17:37:02,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-12-23 17:37:02,466 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:37:02,466 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:37:02,679 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2020-12-23 17:37:02,679 INFO L429 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-23 17:37:02,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:37:02,680 INFO L82 PathProgramCache]: Analyzing trace with hash -1289347714, now seen corresponding path program 1 times [2020-12-23 17:37:02,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:37:02,681 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824189812] [2020-12-23 17:37:02,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:37:02,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:37:02,766 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2020-12-23 17:37:02,766 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824189812] [2020-12-23 17:37:02,766 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:37:02,767 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-23 17:37:02,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417140020] [2020-12-23 17:37:02,768 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 17:37:02,768 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:37:02,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 17:37:02,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 17:37:02,769 INFO L87 Difference]: Start difference. First operand 137 states and 141 transitions. Second operand 3 states. [2020-12-23 17:37:02,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:37:02,788 INFO L93 Difference]: Finished difference Result 136 states and 140 transitions. [2020-12-23 17:37:02,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 17:37:02,789 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 119 [2020-12-23 17:37:02,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:37:02,790 INFO L225 Difference]: With dead ends: 136 [2020-12-23 17:37:02,790 INFO L226 Difference]: Without dead ends: 136 [2020-12-23 17:37:02,790 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 17:37:02,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-12-23 17:37:02,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-12-23 17:37:02,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-12-23 17:37:02,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 140 transitions. [2020-12-23 17:37:02,795 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 140 transitions. Word has length 119 [2020-12-23 17:37:02,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:37:02,795 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 140 transitions. [2020-12-23 17:37:02,795 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 17:37:02,795 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 140 transitions. [2020-12-23 17:37:02,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-12-23 17:37:02,796 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:37:02,796 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:37:02,796 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-12-23 17:37:02,797 INFO L429 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-23 17:37:02,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:37:02,797 INFO L82 PathProgramCache]: Analyzing trace with hash -1289347713, now seen corresponding path program 1 times [2020-12-23 17:37:02,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:37:02,798 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345834851] [2020-12-23 17:37:02,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:37:02,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:37:02,887 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2020-12-23 17:37:02,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345834851] [2020-12-23 17:37:02,888 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [208764358] [2020-12-23 17:37:02,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:37:02,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:37:02,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-23 17:37:03,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:37:03,107 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2020-12-23 17:37:03,107 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:37:03,107 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2020-12-23 17:37:03,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534060708] [2020-12-23 17:37:03,109 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 17:37:03,109 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:37:03,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 17:37:03,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2020-12-23 17:37:03,110 INFO L87 Difference]: Start difference. First operand 136 states and 140 transitions. Second operand 9 states. [2020-12-23 17:37:03,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:37:03,158 INFO L93 Difference]: Finished difference Result 145 states and 149 transitions. [2020-12-23 17:37:03,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-23 17:37:03,159 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 119 [2020-12-23 17:37:03,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:37:03,160 INFO L225 Difference]: With dead ends: 145 [2020-12-23 17:37:03,160 INFO L226 Difference]: Without dead ends: 145 [2020-12-23 17:37:03,161 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2020-12-23 17:37:03,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-12-23 17:37:03,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 141. [2020-12-23 17:37:03,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2020-12-23 17:37:03,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 145 transitions. [2020-12-23 17:37:03,165 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 145 transitions. Word has length 119 [2020-12-23 17:37:03,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:37:03,165 INFO L481 AbstractCegarLoop]: Abstraction has 141 states and 145 transitions. [2020-12-23 17:37:03,165 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 17:37:03,165 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 145 transitions. [2020-12-23 17:37:03,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-12-23 17:37:03,166 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:37:03,166 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:37:03,380 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2020-12-23 17:37:03,381 INFO L429 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-23 17:37:03,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:37:03,382 INFO L82 PathProgramCache]: Analyzing trace with hash 947903122, now seen corresponding path program 2 times [2020-12-23 17:37:03,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:37:03,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069590177] [2020-12-23 17:37:03,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:37:03,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:37:03,503 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2020-12-23 17:37:03,503 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069590177] [2020-12-23 17:37:03,503 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1248223983] [2020-12-23 17:37:03,504 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:37:03,570 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-23 17:37:03,571 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 17:37:03,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-23 17:37:03,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:37:03,670 INFO L348 Elim1Store]: treesize reduction 141, result has 23.8 percent of original size [2020-12-23 17:37:03,670 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 4 case distinctions, treesize of input 18 treesize of output 49 [2020-12-23 17:37:03,672 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:37:03,713 INFO L625 ElimStorePlain]: treesize reduction 10, result has 80.8 percent of original size [2020-12-23 17:37:03,717 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-23 17:37:03,717 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:22, output treesize:24 [2020-12-23 17:37:03,932 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 461 trivial. 0 not checked. [2020-12-23 17:37:03,933 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 17:37:03,933 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 11 [2020-12-23 17:37:03,933 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303034264] [2020-12-23 17:37:03,933 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 17:37:03,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:37:03,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 17:37:03,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-12-23 17:37:03,934 INFO L87 Difference]: Start difference. First operand 141 states and 145 transitions. Second operand 4 states. [2020-12-23 17:37:03,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:37:03,974 INFO L93 Difference]: Finished difference Result 144 states and 148 transitions. [2020-12-23 17:37:03,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 17:37:03,975 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 124 [2020-12-23 17:37:03,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:37:03,976 INFO L225 Difference]: With dead ends: 144 [2020-12-23 17:37:03,976 INFO L226 Difference]: Without dead ends: 144 [2020-12-23 17:37:03,977 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-12-23 17:37:03,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-12-23 17:37:03,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 142. [2020-12-23 17:37:03,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-12-23 17:37:03,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 146 transitions. [2020-12-23 17:37:03,980 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 146 transitions. Word has length 124 [2020-12-23 17:37:03,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:37:03,980 INFO L481 AbstractCegarLoop]: Abstraction has 142 states and 146 transitions. [2020-12-23 17:37:03,980 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 17:37:03,980 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 146 transitions. [2020-12-23 17:37:03,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-12-23 17:37:03,981 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:37:03,981 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:37:04,194 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2020-12-23 17:37:04,194 INFO L429 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-23 17:37:04,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:37:04,195 INFO L82 PathProgramCache]: Analyzing trace with hash -384393803, now seen corresponding path program 1 times [2020-12-23 17:37:04,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:37:04,195 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902081078] [2020-12-23 17:37:04,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:37:04,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:37:04,293 INFO L134 CoverageAnalysis]: Checked inductivity of 463 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2020-12-23 17:37:04,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902081078] [2020-12-23 17:37:04,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1244417647] [2020-12-23 17:37:04,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:37:04,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:37:04,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-23 17:37:04,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:37:04,521 INFO L134 CoverageAnalysis]: Checked inductivity of 463 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2020-12-23 17:37:04,521 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:37:04,521 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2020-12-23 17:37:04,521 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351561305] [2020-12-23 17:37:04,522 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 17:37:04,522 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:37:04,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 17:37:04,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2020-12-23 17:37:04,522 INFO L87 Difference]: Start difference. First operand 142 states and 146 transitions. Second operand 10 states. [2020-12-23 17:37:04,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:37:04,584 INFO L93 Difference]: Finished difference Result 151 states and 155 transitions. [2020-12-23 17:37:04,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-23 17:37:04,584 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 128 [2020-12-23 17:37:04,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:37:04,586 INFO L225 Difference]: With dead ends: 151 [2020-12-23 17:37:04,586 INFO L226 Difference]: Without dead ends: 151 [2020-12-23 17:37:04,586 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2020-12-23 17:37:04,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2020-12-23 17:37:04,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 147. [2020-12-23 17:37:04,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-12-23 17:37:04,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 151 transitions. [2020-12-23 17:37:04,589 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 151 transitions. Word has length 128 [2020-12-23 17:37:04,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:37:04,590 INFO L481 AbstractCegarLoop]: Abstraction has 147 states and 151 transitions. [2020-12-23 17:37:04,590 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 17:37:04,590 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 151 transitions. [2020-12-23 17:37:04,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-12-23 17:37:04,591 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:37:04,591 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 7, 7, 7, 7, 7, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:37:04,805 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,36 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:37:04,806 INFO L429 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-23 17:37:04,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:37:04,806 INFO L82 PathProgramCache]: Analyzing trace with hash -1311447550, now seen corresponding path program 2 times [2020-12-23 17:37:04,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:37:04,807 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301522317] [2020-12-23 17:37:04,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:37:04,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:37:04,921 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2020-12-23 17:37:04,922 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301522317] [2020-12-23 17:37:04,922 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945271205] [2020-12-23 17:37:04,922 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:37:05,045 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-23 17:37:05,046 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 17:37:05,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-23 17:37:05,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:37:05,170 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2020-12-23 17:37:05,170 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:37:05,170 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 11 [2020-12-23 17:37:05,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147437252] [2020-12-23 17:37:05,172 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-23 17:37:05,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:37:05,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-23 17:37:05,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2020-12-23 17:37:05,173 INFO L87 Difference]: Start difference. First operand 147 states and 151 transitions. Second operand 11 states. [2020-12-23 17:37:05,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:37:05,244 INFO L93 Difference]: Finished difference Result 156 states and 160 transitions. [2020-12-23 17:37:05,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-23 17:37:05,245 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 133 [2020-12-23 17:37:05,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:37:05,246 INFO L225 Difference]: With dead ends: 156 [2020-12-23 17:37:05,246 INFO L226 Difference]: Without dead ends: 156 [2020-12-23 17:37:05,247 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2020-12-23 17:37:05,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2020-12-23 17:37:05,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 152. [2020-12-23 17:37:05,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2020-12-23 17:37:05,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 156 transitions. [2020-12-23 17:37:05,250 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 156 transitions. Word has length 133 [2020-12-23 17:37:05,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:37:05,251 INFO L481 AbstractCegarLoop]: Abstraction has 152 states and 156 transitions. [2020-12-23 17:37:05,251 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-23 17:37:05,251 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 156 transitions. [2020-12-23 17:37:05,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-12-23 17:37:05,252 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:37:05,252 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:37:05,466 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2020-12-23 17:37:05,467 INFO L429 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-23 17:37:05,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:37:05,468 INFO L82 PathProgramCache]: Analyzing trace with hash 271107541, now seen corresponding path program 3 times [2020-12-23 17:37:05,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:37:05,468 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338002159] [2020-12-23 17:37:05,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:37:05,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:37:05,600 INFO L134 CoverageAnalysis]: Checked inductivity of 530 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2020-12-23 17:37:05,600 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338002159] [2020-12-23 17:37:05,600 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [821368146] [2020-12-23 17:37:05,600 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:37:05,679 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-12-23 17:37:05,679 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 17:37:05,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-23 17:37:05,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:37:05,778 INFO L348 Elim1Store]: treesize reduction 141, result has 23.8 percent of original size [2020-12-23 17:37:05,779 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 4 case distinctions, treesize of input 18 treesize of output 49 [2020-12-23 17:37:05,781 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:37:05,820 INFO L625 ElimStorePlain]: treesize reduction 10, result has 80.8 percent of original size [2020-12-23 17:37:05,824 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-23 17:37:05,824 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:22, output treesize:24 [2020-12-23 17:37:06,151 INFO L134 CoverageAnalysis]: Checked inductivity of 530 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2020-12-23 17:37:06,151 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 17:37:06,152 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 16 [2020-12-23 17:37:06,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828127139] [2020-12-23 17:37:06,152 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 17:37:06,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:37:06,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 17:37:06,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2020-12-23 17:37:06,153 INFO L87 Difference]: Start difference. First operand 152 states and 156 transitions. Second operand 7 states. [2020-12-23 17:37:06,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:37:06,350 INFO L93 Difference]: Finished difference Result 153 states and 157 transitions. [2020-12-23 17:37:06,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-23 17:37:06,351 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 138 [2020-12-23 17:37:06,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:37:06,353 INFO L225 Difference]: With dead ends: 153 [2020-12-23 17:37:06,353 INFO L226 Difference]: Without dead ends: 153 [2020-12-23 17:37:06,353 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=284, Unknown=0, NotChecked=0, Total=380 [2020-12-23 17:37:06,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-12-23 17:37:06,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 151. [2020-12-23 17:37:06,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2020-12-23 17:37:06,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 155 transitions. [2020-12-23 17:37:06,358 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 155 transitions. Word has length 138 [2020-12-23 17:37:06,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:37:06,358 INFO L481 AbstractCegarLoop]: Abstraction has 151 states and 155 transitions. [2020-12-23 17:37:06,358 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 17:37:06,358 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 155 transitions. [2020-12-23 17:37:06,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-12-23 17:37:06,359 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:37:06,359 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:37:06,573 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2020-12-23 17:37:06,574 INFO L429 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-23 17:37:06,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:37:06,575 INFO L82 PathProgramCache]: Analyzing trace with hash -185600802, now seen corresponding path program 1 times [2020-12-23 17:37:06,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:37:06,575 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489045642] [2020-12-23 17:37:06,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:37:06,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:37:06,707 INFO L134 CoverageAnalysis]: Checked inductivity of 531 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2020-12-23 17:37:06,708 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489045642] [2020-12-23 17:37:06,708 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1396727687] [2020-12-23 17:37:06,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:37:06,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:37:06,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-23 17:37:06,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:37:06,967 INFO L134 CoverageAnalysis]: Checked inductivity of 531 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2020-12-23 17:37:06,967 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:37:06,967 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 12 [2020-12-23 17:37:06,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094070761] [2020-12-23 17:37:06,968 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-23 17:37:06,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:37:06,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-23 17:37:06,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2020-12-23 17:37:06,969 INFO L87 Difference]: Start difference. First operand 151 states and 155 transitions. Second operand 12 states. [2020-12-23 17:37:07,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:37:07,064 INFO L93 Difference]: Finished difference Result 160 states and 164 transitions. [2020-12-23 17:37:07,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-23 17:37:07,065 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 139 [2020-12-23 17:37:07,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:37:07,066 INFO L225 Difference]: With dead ends: 160 [2020-12-23 17:37:07,066 INFO L226 Difference]: Without dead ends: 160 [2020-12-23 17:37:07,066 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2020-12-23 17:37:07,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-12-23 17:37:07,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 156. [2020-12-23 17:37:07,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-12-23 17:37:07,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 160 transitions. [2020-12-23 17:37:07,070 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 160 transitions. Word has length 139 [2020-12-23 17:37:07,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:37:07,071 INFO L481 AbstractCegarLoop]: Abstraction has 156 states and 160 transitions. [2020-12-23 17:37:07,071 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-23 17:37:07,071 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 160 transitions. [2020-12-23 17:37:07,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-12-23 17:37:07,072 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:37:07,072 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:37:07,285 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,39 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:37:07,285 INFO L429 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-23 17:37:07,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:37:07,286 INFO L82 PathProgramCache]: Analyzing trace with hash 811821681, now seen corresponding path program 2 times [2020-12-23 17:37:07,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:37:07,287 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406966100] [2020-12-23 17:37:07,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:37:07,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:37:07,466 INFO L134 CoverageAnalysis]: Checked inductivity of 572 backedges. 0 proven. 189 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2020-12-23 17:37:07,467 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406966100] [2020-12-23 17:37:07,467 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1822194641] [2020-12-23 17:37:07,467 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:37:07,541 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-23 17:37:07,542 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 17:37:07,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-23 17:37:07,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:37:07,646 INFO L348 Elim1Store]: treesize reduction 141, result has 23.8 percent of original size [2020-12-23 17:37:07,646 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 4 case distinctions, treesize of input 18 treesize of output 49 [2020-12-23 17:37:07,648 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:37:07,691 INFO L625 ElimStorePlain]: treesize reduction 10, result has 81.8 percent of original size [2020-12-23 17:37:07,695 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-23 17:37:07,696 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:25, output treesize:27 [2020-12-23 17:37:08,054 INFO L134 CoverageAnalysis]: Checked inductivity of 572 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 570 trivial. 0 not checked. [2020-12-23 17:37:08,055 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:37:08,055 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5] total 17 [2020-12-23 17:37:08,056 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751489099] [2020-12-23 17:37:08,056 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-12-23 17:37:08,056 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:37:08,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-12-23 17:37:08,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2020-12-23 17:37:08,057 INFO L87 Difference]: Start difference. First operand 156 states and 160 transitions. Second operand 17 states. [2020-12-23 17:37:08,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:37:08,512 INFO L93 Difference]: Finished difference Result 160 states and 164 transitions. [2020-12-23 17:37:08,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-23 17:37:08,513 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 144 [2020-12-23 17:37:08,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:37:08,514 INFO L225 Difference]: With dead ends: 160 [2020-12-23 17:37:08,514 INFO L226 Difference]: Without dead ends: 160 [2020-12-23 17:37:08,515 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=235, Invalid=695, Unknown=0, NotChecked=0, Total=930 [2020-12-23 17:37:08,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-12-23 17:37:08,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 158. [2020-12-23 17:37:08,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-12-23 17:37:08,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 162 transitions. [2020-12-23 17:37:08,518 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 162 transitions. Word has length 144 [2020-12-23 17:37:08,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:37:08,518 INFO L481 AbstractCegarLoop]: Abstraction has 158 states and 162 transitions. [2020-12-23 17:37:08,518 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-12-23 17:37:08,518 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 162 transitions. [2020-12-23 17:37:08,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-12-23 17:37:08,519 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:37:08,520 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:37:08,732 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2020-12-23 17:37:08,732 INFO L429 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-23 17:37:08,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:37:08,733 INFO L82 PathProgramCache]: Analyzing trace with hash -1038633797, now seen corresponding path program 1 times [2020-12-23 17:37:08,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:37:08,733 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559341596] [2020-12-23 17:37:08,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:37:08,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:37:08,806 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 615 trivial. 0 not checked. [2020-12-23 17:37:08,806 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559341596] [2020-12-23 17:37:08,807 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [581581971] [2020-12-23 17:37:08,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:37:08,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:37:08,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 17:37:08,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:37:09,055 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 615 trivial. 0 not checked. [2020-12-23 17:37:09,055 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:37:09,055 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-12-23 17:37:09,056 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046026032] [2020-12-23 17:37:09,056 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 17:37:09,056 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:37:09,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 17:37:09,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 17:37:09,057 INFO L87 Difference]: Start difference. First operand 158 states and 162 transitions. Second operand 5 states. [2020-12-23 17:37:09,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:37:09,080 INFO L93 Difference]: Finished difference Result 167 states and 171 transitions. [2020-12-23 17:37:09,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 17:37:09,081 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 151 [2020-12-23 17:37:09,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:37:09,082 INFO L225 Difference]: With dead ends: 167 [2020-12-23 17:37:09,082 INFO L226 Difference]: Without dead ends: 167 [2020-12-23 17:37:09,083 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 17:37:09,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2020-12-23 17:37:09,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 163. [2020-12-23 17:37:09,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-12-23 17:37:09,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 167 transitions. [2020-12-23 17:37:09,086 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 167 transitions. Word has length 151 [2020-12-23 17:37:09,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:37:09,087 INFO L481 AbstractCegarLoop]: Abstraction has 163 states and 167 transitions. [2020-12-23 17:37:09,087 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 17:37:09,087 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 167 transitions. [2020-12-23 17:37:09,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-12-23 17:37:09,088 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:37:09,088 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:37:09,301 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,41 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:37:09,302 INFO L429 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-23 17:37:09,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:37:09,303 INFO L82 PathProgramCache]: Analyzing trace with hash 1960877391, now seen corresponding path program 2 times [2020-12-23 17:37:09,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:37:09,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274878767] [2020-12-23 17:37:09,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:37:09,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:37:09,399 INFO L134 CoverageAnalysis]: Checked inductivity of 622 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 618 trivial. 0 not checked. [2020-12-23 17:37:09,399 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274878767] [2020-12-23 17:37:09,400 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:37:09,400 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 17:37:09,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909125869] [2020-12-23 17:37:09,400 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 17:37:09,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:37:09,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 17:37:09,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 17:37:09,401 INFO L87 Difference]: Start difference. First operand 163 states and 167 transitions. Second operand 5 states. [2020-12-23 17:37:09,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:37:09,447 INFO L93 Difference]: Finished difference Result 162 states and 166 transitions. [2020-12-23 17:37:09,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 17:37:09,447 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-12-23 17:37:09,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:37:09,448 INFO L225 Difference]: With dead ends: 162 [2020-12-23 17:37:09,448 INFO L226 Difference]: Without dead ends: 162 [2020-12-23 17:37:09,449 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-23 17:37:09,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-12-23 17:37:09,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2020-12-23 17:37:09,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-12-23 17:37:09,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 166 transitions. [2020-12-23 17:37:09,452 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 166 transitions. Word has length 156 [2020-12-23 17:37:09,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:37:09,453 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 166 transitions. [2020-12-23 17:37:09,453 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 17:37:09,453 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 166 transitions. [2020-12-23 17:37:09,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-12-23 17:37:09,454 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:37:09,454 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:37:09,454 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2020-12-23 17:37:09,455 INFO L429 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-23 17:37:09,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:37:09,455 INFO L82 PathProgramCache]: Analyzing trace with hash 1960877392, now seen corresponding path program 1 times [2020-12-23 17:37:09,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:37:09,455 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027534293] [2020-12-23 17:37:09,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:37:09,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:37:09,542 INFO L134 CoverageAnalysis]: Checked inductivity of 622 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 615 trivial. 0 not checked. [2020-12-23 17:37:09,542 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027534293] [2020-12-23 17:37:09,542 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [23026201] [2020-12-23 17:37:09,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:37:09,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:37:09,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-23 17:37:09,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:37:09,807 INFO L134 CoverageAnalysis]: Checked inductivity of 622 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 615 trivial. 0 not checked. [2020-12-23 17:37:09,807 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:37:09,807 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-12-23 17:37:09,808 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554432520] [2020-12-23 17:37:09,808 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 17:37:09,808 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:37:09,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 17:37:09,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-12-23 17:37:09,808 INFO L87 Difference]: Start difference. First operand 162 states and 166 transitions. Second operand 6 states. [2020-12-23 17:37:09,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:37:09,838 INFO L93 Difference]: Finished difference Result 171 states and 175 transitions. [2020-12-23 17:37:09,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 17:37:09,839 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 156 [2020-12-23 17:37:09,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:37:09,840 INFO L225 Difference]: With dead ends: 171 [2020-12-23 17:37:09,840 INFO L226 Difference]: Without dead ends: 171 [2020-12-23 17:37:09,840 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-12-23 17:37:09,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-12-23 17:37:09,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 167. [2020-12-23 17:37:09,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-12-23 17:37:09,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 171 transitions. [2020-12-23 17:37:09,844 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 171 transitions. Word has length 156 [2020-12-23 17:37:09,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:37:09,845 INFO L481 AbstractCegarLoop]: Abstraction has 167 states and 171 transitions. [2020-12-23 17:37:09,845 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 17:37:09,845 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 171 transitions. [2020-12-23 17:37:09,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-12-23 17:37:09,846 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:37:09,846 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:37:10,060 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2020-12-23 17:37:10,061 INFO L429 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-23 17:37:10,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:37:10,061 INFO L82 PathProgramCache]: Analyzing trace with hash 536211772, now seen corresponding path program 2 times [2020-12-23 17:37:10,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:37:10,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088345184] [2020-12-23 17:37:10,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:37:10,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:37:10,177 INFO L134 CoverageAnalysis]: Checked inductivity of 633 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 615 trivial. 0 not checked. [2020-12-23 17:37:10,177 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088345184] [2020-12-23 17:37:10,177 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [934228005] [2020-12-23 17:37:10,177 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:37:10,268 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-23 17:37:10,269 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 17:37:10,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-23 17:37:10,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:37:10,384 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 25 [2020-12-23 17:37:10,385 INFO L348 Elim1Store]: treesize reduction 141, result has 23.8 percent of original size [2020-12-23 17:37:10,385 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 4 case distinctions, treesize of input 18 treesize of output 49 [2020-12-23 17:37:10,388 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:37:10,426 INFO L625 ElimStorePlain]: treesize reduction 10, result has 80.8 percent of original size [2020-12-23 17:37:10,430 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-23 17:37:10,430 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:22, output treesize:24 [2020-12-23 17:37:10,700 INFO L134 CoverageAnalysis]: Checked inductivity of 633 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 633 trivial. 0 not checked. [2020-12-23 17:37:10,700 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 17:37:10,700 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2020-12-23 17:37:10,700 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648352072] [2020-12-23 17:37:10,700 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 17:37:10,701 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:37:10,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 17:37:10,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-12-23 17:37:10,701 INFO L87 Difference]: Start difference. First operand 167 states and 171 transitions. Second operand 5 states. [2020-12-23 17:37:10,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:37:10,792 INFO L93 Difference]: Finished difference Result 171 states and 175 transitions. [2020-12-23 17:37:10,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 17:37:10,793 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-12-23 17:37:10,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:37:10,795 INFO L225 Difference]: With dead ends: 171 [2020-12-23 17:37:10,795 INFO L226 Difference]: Without dead ends: 171 [2020-12-23 17:37:10,795 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2020-12-23 17:37:10,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-12-23 17:37:10,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 169. [2020-12-23 17:37:10,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-12-23 17:37:10,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 173 transitions. [2020-12-23 17:37:10,799 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 173 transitions. Word has length 161 [2020-12-23 17:37:10,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:37:10,800 INFO L481 AbstractCegarLoop]: Abstraction has 169 states and 173 transitions. [2020-12-23 17:37:10,800 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 17:37:10,800 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 173 transitions. [2020-12-23 17:37:10,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-12-23 17:37:10,801 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:37:10,801 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:37:11,014 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2020-12-23 17:37:11,015 INFO L429 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-23 17:37:11,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:37:11,016 INFO L82 PathProgramCache]: Analyzing trace with hash 1693889727, now seen corresponding path program 1 times [2020-12-23 17:37:11,016 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:37:11,016 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015404875] [2020-12-23 17:37:11,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:37:11,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:37:11,112 INFO L134 CoverageAnalysis]: Checked inductivity of 635 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 617 trivial. 0 not checked. [2020-12-23 17:37:11,112 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015404875] [2020-12-23 17:37:11,112 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1561130592] [2020-12-23 17:37:11,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:37:11,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:37:11,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-23 17:37:11,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:37:11,408 INFO L134 CoverageAnalysis]: Checked inductivity of 635 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 617 trivial. 0 not checked. [2020-12-23 17:37:11,409 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:37:11,409 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2020-12-23 17:37:11,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998987834] [2020-12-23 17:37:11,409 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 17:37:11,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:37:11,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 17:37:11,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-12-23 17:37:11,410 INFO L87 Difference]: Start difference. First operand 169 states and 173 transitions. Second operand 7 states. [2020-12-23 17:37:11,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:37:11,446 INFO L93 Difference]: Finished difference Result 178 states and 182 transitions. [2020-12-23 17:37:11,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 17:37:11,446 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 165 [2020-12-23 17:37:11,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:37:11,448 INFO L225 Difference]: With dead ends: 178 [2020-12-23 17:37:11,448 INFO L226 Difference]: Without dead ends: 178 [2020-12-23 17:37:11,448 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-12-23 17:37:11,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-12-23 17:37:11,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 174. [2020-12-23 17:37:11,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-12-23 17:37:11,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 178 transitions. [2020-12-23 17:37:11,452 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 178 transitions. Word has length 165 [2020-12-23 17:37:11,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:37:11,452 INFO L481 AbstractCegarLoop]: Abstraction has 174 states and 178 transitions. [2020-12-23 17:37:11,452 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 17:37:11,452 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 178 transitions. [2020-12-23 17:37:11,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-12-23 17:37:11,453 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:37:11,454 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:37:11,668 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2020-12-23 17:37:11,668 INFO L429 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-23 17:37:11,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:37:11,669 INFO L82 PathProgramCache]: Analyzing trace with hash 1692600915, now seen corresponding path program 2 times [2020-12-23 17:37:11,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:37:11,670 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298143788] [2020-12-23 17:37:11,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:37:11,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:37:11,792 INFO L134 CoverageAnalysis]: Checked inductivity of 651 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 617 trivial. 0 not checked. [2020-12-23 17:37:11,792 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298143788] [2020-12-23 17:37:11,792 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1389682029] [2020-12-23 17:37:11,792 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:37:11,937 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-23 17:37:11,938 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 17:37:11,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-23 17:37:11,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:37:12,088 INFO L134 CoverageAnalysis]: Checked inductivity of 651 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 617 trivial. 0 not checked. [2020-12-23 17:37:12,089 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:37:12,089 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2020-12-23 17:37:12,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113469367] [2020-12-23 17:37:12,090 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-23 17:37:12,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:37:12,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-23 17:37:12,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2020-12-23 17:37:12,090 INFO L87 Difference]: Start difference. First operand 174 states and 178 transitions. Second operand 8 states. [2020-12-23 17:37:12,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:37:12,132 INFO L93 Difference]: Finished difference Result 183 states and 187 transitions. [2020-12-23 17:37:12,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-23 17:37:12,133 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 170 [2020-12-23 17:37:12,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:37:12,134 INFO L225 Difference]: With dead ends: 183 [2020-12-23 17:37:12,134 INFO L226 Difference]: Without dead ends: 183 [2020-12-23 17:37:12,135 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2020-12-23 17:37:12,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2020-12-23 17:37:12,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 179. [2020-12-23 17:37:12,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2020-12-23 17:37:12,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 183 transitions. [2020-12-23 17:37:12,141 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 183 transitions. Word has length 170 [2020-12-23 17:37:12,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:37:12,142 INFO L481 AbstractCegarLoop]: Abstraction has 179 states and 183 transitions. [2020-12-23 17:37:12,142 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-23 17:37:12,143 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 183 transitions. [2020-12-23 17:37:12,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-12-23 17:37:12,144 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:37:12,144 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:37:12,358 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable50 [2020-12-23 17:37:12,359 INFO L429 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-23 17:37:12,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:37:12,359 INFO L82 PathProgramCache]: Analyzing trace with hash -2131685057, now seen corresponding path program 3 times [2020-12-23 17:37:12,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:37:12,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79147999] [2020-12-23 17:37:12,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:37:12,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:37:12,473 INFO L134 CoverageAnalysis]: Checked inductivity of 672 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 617 trivial. 0 not checked. [2020-12-23 17:37:12,474 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79147999] [2020-12-23 17:37:12,474 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1889159661] [2020-12-23 17:37:12,474 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:37:12,558 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-12-23 17:37:12,558 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 17:37:12,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-23 17:37:12,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:37:12,666 INFO L348 Elim1Store]: treesize reduction 141, result has 23.8 percent of original size [2020-12-23 17:37:12,666 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 4 case distinctions, treesize of input 18 treesize of output 49 [2020-12-23 17:37:12,668 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:37:12,707 INFO L625 ElimStorePlain]: treesize reduction 10, result has 80.8 percent of original size [2020-12-23 17:37:12,711 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-23 17:37:12,712 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:22, output treesize:24 [2020-12-23 17:37:13,070 INFO L134 CoverageAnalysis]: Checked inductivity of 672 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 670 trivial. 0 not checked. [2020-12-23 17:37:13,071 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 17:37:13,071 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 13 [2020-12-23 17:37:13,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337433986] [2020-12-23 17:37:13,072 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 17:37:13,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:37:13,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 17:37:13,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-12-23 17:37:13,073 INFO L87 Difference]: Start difference. First operand 179 states and 183 transitions. Second operand 7 states. [2020-12-23 17:37:13,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:37:13,229 INFO L93 Difference]: Finished difference Result 180 states and 184 transitions. [2020-12-23 17:37:13,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-23 17:37:13,230 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 175 [2020-12-23 17:37:13,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:37:13,232 INFO L225 Difference]: With dead ends: 180 [2020-12-23 17:37:13,233 INFO L226 Difference]: Without dead ends: 180 [2020-12-23 17:37:13,234 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2020-12-23 17:37:13,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-12-23 17:37:13,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 177. [2020-12-23 17:37:13,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2020-12-23 17:37:13,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 181 transitions. [2020-12-23 17:37:13,237 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 181 transitions. Word has length 175 [2020-12-23 17:37:13,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:37:13,239 INFO L481 AbstractCegarLoop]: Abstraction has 177 states and 181 transitions. [2020-12-23 17:37:13,239 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 17:37:13,239 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 181 transitions. [2020-12-23 17:37:13,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-12-23 17:37:13,240 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:37:13,240 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:37:13,454 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,46 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:37:13,455 INFO L429 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-23 17:37:13,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:37:13,456 INFO L82 PathProgramCache]: Analyzing trace with hash -1657728922, now seen corresponding path program 1 times [2020-12-23 17:37:13,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:37:13,456 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291197219] [2020-12-23 17:37:13,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:37:13,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:37:13,554 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 670 trivial. 0 not checked. [2020-12-23 17:37:13,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291197219] [2020-12-23 17:37:13,555 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [198505750] [2020-12-23 17:37:13,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:37:13,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:37:13,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 564 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-23 17:37:13,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:37:13,928 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 671 trivial. 0 not checked. [2020-12-23 17:37:13,928 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 17:37:13,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2020-12-23 17:37:13,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923689022] [2020-12-23 17:37:13,929 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 17:37:13,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:37:13,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 17:37:13,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 17:37:13,932 INFO L87 Difference]: Start difference. First operand 177 states and 181 transitions. Second operand 3 states. [2020-12-23 17:37:13,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:37:13,950 INFO L93 Difference]: Finished difference Result 176 states and 180 transitions. [2020-12-23 17:37:13,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 17:37:13,950 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 176 [2020-12-23 17:37:13,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:37:13,951 INFO L225 Difference]: With dead ends: 176 [2020-12-23 17:37:13,951 INFO L226 Difference]: Without dead ends: 0 [2020-12-23 17:37:13,951 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 17:37:13,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-23 17:37:13,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-23 17:37:13,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-23 17:37:13,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-23 17:37:13,952 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 176 [2020-12-23 17:37:13,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:37:13,952 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-23 17:37:13,952 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 17:37:13,953 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-23 17:37:13,953 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-23 17:37:14,166 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable52 [2020-12-23 17:37:14,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 05:37:14 BoogieIcfgContainer [2020-12-23 17:37:14,176 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-23 17:37:14,176 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-23 17:37:14,176 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-23 17:37:14,176 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-23 17:37:14,177 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 05:36:07" (3/4) ... [2020-12-23 17:37:14,180 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-23 17:37:14,201 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-12-23 17:37:14,201 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-23 17:37:14,202 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-23 17:37:14,202 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-23 17:37:14,274 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/memsafety-ext3/getNumbers4-1.c-witness.graphml [2020-12-23 17:37:14,275 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-23 17:37:14,276 INFO L168 Benchmark]: Toolchain (without parser) took 67668.15 ms. Allocated memory was 151.0 MB in the beginning and 388.0 MB in the end (delta: 237.0 MB). Free memory was 126.7 MB in the beginning and 224.7 MB in the end (delta: -98.0 MB). Peak memory consumption was 140.2 MB. Max. memory is 8.0 GB. [2020-12-23 17:37:14,276 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory is still 123.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 17:37:14,277 INFO L168 Benchmark]: CACSL2BoogieTranslator took 323.12 ms. Allocated memory is still 151.0 MB. Free memory was 126.5 MB in the beginning and 116.4 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-12-23 17:37:14,277 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.37 ms. Allocated memory is still 151.0 MB. Free memory was 116.4 MB in the beginning and 114.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-23 17:37:14,278 INFO L168 Benchmark]: Boogie Preprocessor took 31.56 ms. Allocated memory is still 151.0 MB. Free memory was 114.7 MB in the beginning and 113.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 17:37:14,278 INFO L168 Benchmark]: RCFGBuilder took 824.66 ms. Allocated memory is still 151.0 MB. Free memory was 113.3 MB in the beginning and 123.9 MB in the end (delta: -10.6 MB). Peak memory consumption was 16.1 MB. Max. memory is 8.0 GB. [2020-12-23 17:37:14,278 INFO L168 Benchmark]: TraceAbstraction took 66329.77 ms. Allocated memory was 151.0 MB in the beginning and 388.0 MB in the end (delta: 237.0 MB). Free memory was 123.4 MB in the beginning and 227.8 MB in the end (delta: -104.4 MB). Peak memory consumption was 132.5 MB. Max. memory is 8.0 GB. [2020-12-23 17:37:14,279 INFO L168 Benchmark]: Witness Printer took 98.58 ms. Allocated memory is still 388.0 MB. Free memory was 227.8 MB in the beginning and 224.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-23 17:37:14,283 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory is still 123.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 323.12 ms. Allocated memory is still 151.0 MB. Free memory was 126.5 MB in the beginning and 116.4 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 51.37 ms. Allocated memory is still 151.0 MB. Free memory was 116.4 MB in the beginning and 114.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 31.56 ms. Allocated memory is still 151.0 MB. Free memory was 114.7 MB in the beginning and 113.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 824.66 ms. Allocated memory is still 151.0 MB. Free memory was 113.3 MB in the beginning and 123.9 MB in the end (delta: -10.6 MB). Peak memory consumption was 16.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 66329.77 ms. Allocated memory was 151.0 MB in the beginning and 388.0 MB in the end (delta: 237.0 MB). Free memory was 123.4 MB in the beginning and 227.8 MB in the end (delta: -104.4 MB). Peak memory consumption was 132.5 MB. Max. memory is 8.0 GB. * Witness Printer took 98.58 ms. Allocated memory is still 388.0 MB. Free memory was 227.8 MB in the beginning and 224.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 38]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 9]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 38]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 9]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 38]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 47]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 19]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 43]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 47]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 19]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 38]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 19]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 28]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 28]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 19]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 28]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 28]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 17 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 53 locations, 17 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 66.2s, OverallIterations: 53, TraceHistogramMax: 10, AutomataDifference: 12.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1874 SDtfs, 6183 SDslu, 7037 SDs, 0 SdLazy, 5289 SolverSat, 397 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4455 GetRequests, 3709 SyntacticMatches, 92 SemanticMatches, 654 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3040 ImplicationChecksByTransitivity, 18.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=179occurred in iteration=51, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 53 MinimizatonAttempts, 186 StatesRemovedByMinimization, 43 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.0s SsaConstructionTime, 6.7s SatisfiabilityAnalysisTime, 33.0s InterpolantComputationTime, 8307 NumberOfCodeBlocks, 7064 NumberOfCodeBlocksAsserted, 133 NumberOfCheckSat, 8208 ConstructedInterpolants, 669 QuantifiedInterpolants, 5556023 SizeOfPredicates, 146 NumberOfNonLiveVariables, 9802 ConjunctsInSsa, 474 ConjunctsInUnsatCore, 99 InterpolantComputations, 21 PerfectInterpolantSequences, 25285/29644 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...