/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/array-examples/data_structures_set_multi_proc_trivial_ground.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-22 23:48:24,848 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 23:48:24,851 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 23:48:24,889 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 23:48:24,889 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 23:48:24,891 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 23:48:24,893 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 23:48:24,895 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 23:48:24,897 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 23:48:24,899 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 23:48:24,900 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 23:48:24,901 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2020-12-22 23:48:24,978 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 23:48:25,037 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 23:48:25,037 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 23:48:25,042 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 23:48:25,042 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 23:48:25,043 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 23:48:25,043 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 23:48:25,043 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 23:48:25,044 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 23:48:25,044 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 23:48:25,044 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 23:48:25,045 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 23:48:25,046 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 23:48:25,046 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 23:48:25,046 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 23:48:25,047 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 23:48:25,047 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 23:48:25,047 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 23:48:25,048 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 23:48:25,048 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 23:48:25,048 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 23:48:25,049 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 23:48:25,049 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 23:48:25,049 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 23:48:25,050 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 23:48:25,050 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 23:48:25,050 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 23:48:25,461 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 23:48:25,491 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 23:48:25,494 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 23:48:25,496 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 23:48:25,497 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 23:48:25,498 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-examples/data_structures_set_multi_proc_trivial_ground.i [2020-12-22 23:48:25,578 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/9cd1d8776/3ed19e39c6d04045ad22632329bcd75b/FLAG2c31f23e4 [2020-12-22 23:48:26,299 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 23:48:26,300 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/array-examples/data_structures_set_multi_proc_trivial_ground.i [2020-12-22 23:48:26,313 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/9cd1d8776/3ed19e39c6d04045ad22632329bcd75b/FLAG2c31f23e4 [2020-12-22 23:48:26,618 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/9cd1d8776/3ed19e39c6d04045ad22632329bcd75b [2020-12-22 23:48:26,621 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 23:48:26,628 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 23:48:26,631 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 23:48:26,631 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 23:48:26,635 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 23:48:26,636 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:48:26" (1/1) ... [2020-12-22 23:48:26,638 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73ca2684 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:48:26, skipping insertion in model container [2020-12-22 23:48:26,638 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:48:26" (1/1) ... [2020-12-22 23:48:26,646 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 23:48:26,667 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 23:48:26,876 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/array-examples/data_structures_set_multi_proc_trivial_ground.i[838,851] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~set,],base],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[~set,],offset],BinaryExpression[ARITHMUL,IntegerLiteral[4],IdentifierExpression[~size,]]]]] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: lhs: VariableLHS[~x~0,] left hand side expression in assignment: lhs: ArrayLHS[VariableLHS[~set~0,],[IdentifierExpression[~x~0,]]] left hand side expression in assignment: lhs: VariableLHS[~x~0,] left hand side expression in assignment: lhs: VariableLHS[~y~0,] left hand side expression in assignment: lhs: VariableLHS[~v~0,] left hand side expression in assignment: lhs: ArrayLHS[VariableLHS[~values~0,],[IdentifierExpression[~v~0,]]] left hand side expression in assignment: lhs: VariableLHS[~v~0,] left hand side expression in assignment: lhs: VariableLHS[~n~0,] left hand side expression in assignment: lhs: VariableLHS[~x~0,] left hand side expression in assignment: lhs: VariableLHS[~y~0,] left hand side expression in assignment: lhs: VariableLHS[~x~0,] left hand side expression in assignment: lhs: VariableLHS[~y~0,] [2020-12-22 23:48:26,932 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 23:48:26,949 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 23:48:26,971 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/array-examples/data_structures_set_multi_proc_trivial_ground.i[838,851] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~set,],base],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[~set,],offset],BinaryExpression[ARITHMUL,IntegerLiteral[4],IdentifierExpression[~size,]]]]] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: lhs: VariableLHS[~x~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#set~0,],base],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[~#set~0,],offset],BinaryExpression[ARITHMUL,IntegerLiteral[4],IdentifierExpression[~x~0,]]]]] left hand side expression in assignment: lhs: VariableLHS[~x~0,] left hand side expression in assignment: lhs: VariableLHS[~y~0,] left hand side expression in assignment: lhs: VariableLHS[~v~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#values~0,],base],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[~#values~0,],offset],BinaryExpression[ARITHMUL,IntegerLiteral[4],IdentifierExpression[~v~0,]]]]] left hand side expression in assignment: lhs: VariableLHS[~v~0,] left hand side expression in assignment: lhs: VariableLHS[~n~0,] left hand side expression in assignment: lhs: VariableLHS[~x~0,] left hand side expression in assignment: lhs: VariableLHS[~y~0,] left hand side expression in assignment: lhs: VariableLHS[~x~0,] left hand side expression in assignment: lhs: VariableLHS[~y~0,] [2020-12-22 23:48:27,023 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 23:48:27,049 INFO L208 MainTranslator]: Completed translation [2020-12-22 23:48:27,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:48:27 WrapperNode [2020-12-22 23:48:27,050 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 23:48:27,052 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 23:48:27,052 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 23:48:27,053 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 23:48:27,064 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:48:27" (1/1) ... [2020-12-22 23:48:27,090 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:48:27" (1/1) ... [2020-12-22 23:48:27,145 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 23:48:27,149 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 23:48:27,150 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 23:48:27,150 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 23:48:27,162 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:48:27" (1/1) ... [2020-12-22 23:48:27,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:48:27" (1/1) ... [2020-12-22 23:48:27,182 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:48:27" (1/1) ... [2020-12-22 23:48:27,182 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:48:27" (1/1) ... [2020-12-22 23:48:27,198 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:48:27" (1/1) ... [2020-12-22 23:48:27,217 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:48:27" (1/1) ... [2020-12-22 23:48:27,221 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:48:27" (1/1) ... [2020-12-22 23:48:27,226 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 23:48:27,230 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 23:48:27,231 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 23:48:27,231 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 23:48:27,232 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:48:27" (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 [2020-12-22 23:48:27,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 23:48:27,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 23:48:27,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 23:48:27,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 23:48:27,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 23:48:27,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 23:48:27,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 23:48:27,979 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 23:48:27,980 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2020-12-22 23:48:27,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:48:27 BoogieIcfgContainer [2020-12-22 23:48:27,982 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 23:48:27,983 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 23:48:27,983 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 23:48:27,987 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 23:48:27,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 11:48:26" (1/3) ... [2020-12-22 23:48:27,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a84b3ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:48:27, skipping insertion in model container [2020-12-22 23:48:27,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:48:27" (2/3) ... [2020-12-22 23:48:27,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a84b3ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:48:27, skipping insertion in model container [2020-12-22 23:48:27,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:48:27" (3/3) ... [2020-12-22 23:48:27,991 INFO L111 eAbstractionObserver]: Analyzing ICFG data_structures_set_multi_proc_trivial_ground.i [2020-12-22 23:48:27,998 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 23:48:28,003 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-12-22 23:48:28,023 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-22 23:48:28,052 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 23:48:28,052 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 23:48:28,052 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 23:48:28,052 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 23:48:28,053 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 23:48:28,053 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 23:48:28,053 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 23:48:28,053 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 23:48:28,070 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states. [2020-12-22 23:48:28,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-22 23:48:28,077 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 23:48:28,077 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 23:48:28,078 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 23:48:28,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 23:48:28,084 INFO L82 PathProgramCache]: Analyzing trace with hash 212109301, now seen corresponding path program 1 times [2020-12-22 23:48:28,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 23:48:28,096 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371546505] [2020-12-22 23:48:28,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 23:48:28,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 23:48:28,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 23:48:28,380 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371546505] [2020-12-22 23:48:28,382 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 23:48:28,382 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 23:48:28,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260467417] [2020-12-22 23:48:28,389 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 23:48:28,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 23:48:28,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 23:48:28,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 23:48:28,416 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 3 states. [2020-12-22 23:48:28,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 23:48:28,580 INFO L93 Difference]: Finished difference Result 137 states and 207 transitions. [2020-12-22 23:48:28,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 23:48:28,583 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-12-22 23:48:28,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 23:48:28,602 INFO L225 Difference]: With dead ends: 137 [2020-12-22 23:48:28,603 INFO L226 Difference]: Without dead ends: 85 [2020-12-22 23:48:28,608 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 23:48:28,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-12-22 23:48:28,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 45. [2020-12-22 23:48:28,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-12-22 23:48:28,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 56 transitions. [2020-12-22 23:48:28,677 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 56 transitions. Word has length 8 [2020-12-22 23:48:28,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 23:48:28,678 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 56 transitions. [2020-12-22 23:48:28,678 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 23:48:28,678 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 56 transitions. [2020-12-22 23:48:28,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-22 23:48:28,680 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 23:48:28,680 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 23:48:28,681 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 23:48:28,682 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 23:48:28,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 23:48:28,685 INFO L82 PathProgramCache]: Analyzing trace with hash 1436007159, now seen corresponding path program 1 times [2020-12-22 23:48:28,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 23:48:28,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261046096] [2020-12-22 23:48:28,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 23:48:28,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 23:48:28,789 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 23:48:28,789 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261046096] [2020-12-22 23:48:28,790 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1524187567] [2020-12-22 23:48:28,790 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 [2020-12-22 23:48:28,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 23:48:28,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-22 23:48:28,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 23:48:28,989 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 23:48:28,989 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 23:48:28,990 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-12-22 23:48:28,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981074835] [2020-12-22 23:48:28,994 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 23:48:28,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 23:48:29,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 23:48:29,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 23:48:29,001 INFO L87 Difference]: Start difference. First operand 45 states and 56 transitions. Second operand 5 states. [2020-12-22 23:48:29,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 23:48:29,129 INFO L93 Difference]: Finished difference Result 166 states and 208 transitions. [2020-12-22 23:48:29,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 23:48:29,130 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-12-22 23:48:29,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 23:48:29,132 INFO L225 Difference]: With dead ends: 166 [2020-12-22 23:48:29,132 INFO L226 Difference]: Without dead ends: 126 [2020-12-22 23:48:29,134 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 23:48:29,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-12-22 23:48:29,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 47. [2020-12-22 23:48:29,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-12-22 23:48:29,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 58 transitions. [2020-12-22 23:48:29,144 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 58 transitions. Word has length 10 [2020-12-22 23:48:29,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 23:48:29,144 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 58 transitions. [2020-12-22 23:48:29,144 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 23:48:29,144 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 58 transitions. [2020-12-22 23:48:29,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-22 23:48:29,145 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 23:48:29,145 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 23:48:29,360 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-12-22 23:48:29,361 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 23:48:29,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 23:48:29,363 INFO L82 PathProgramCache]: Analyzing trace with hash 780809593, now seen corresponding path program 2 times [2020-12-22 23:48:29,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 23:48:29,364 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184583617] [2020-12-22 23:48:29,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 23:48:29,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 23:48:29,426 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-22 23:48:29,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184583617] [2020-12-22 23:48:29,427 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 23:48:29,427 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 23:48:29,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490600900] [2020-12-22 23:48:29,428 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 23:48:29,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 23:48:29,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 23:48:29,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 23:48:29,429 INFO L87 Difference]: Start difference. First operand 47 states and 58 transitions. Second operand 4 states. [2020-12-22 23:48:29,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 23:48:29,490 INFO L93 Difference]: Finished difference Result 92 states and 117 transitions. [2020-12-22 23:48:29,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 23:48:29,493 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-12-22 23:48:29,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 23:48:29,494 INFO L225 Difference]: With dead ends: 92 [2020-12-22 23:48:29,494 INFO L226 Difference]: Without dead ends: 51 [2020-12-22 23:48:29,495 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 23:48:29,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-12-22 23:48:29,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 50. [2020-12-22 23:48:29,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-12-22 23:48:29,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 62 transitions. [2020-12-22 23:48:29,514 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 62 transitions. Word has length 12 [2020-12-22 23:48:29,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 23:48:29,514 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 62 transitions. [2020-12-22 23:48:29,514 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 23:48:29,515 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 62 transitions. [2020-12-22 23:48:29,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-22 23:48:29,516 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 23:48:29,516 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 23:48:29,518 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 23:48:29,518 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 23:48:29,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 23:48:29,519 INFO L82 PathProgramCache]: Analyzing trace with hash -1692621165, now seen corresponding path program 1 times [2020-12-22 23:48:29,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 23:48:29,520 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010143143] [2020-12-22 23:48:29,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 23:48:29,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 23:48:29,612 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-22 23:48:29,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010143143] [2020-12-22 23:48:29,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 23:48:29,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 23:48:29,613 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114760571] [2020-12-22 23:48:29,614 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 23:48:29,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 23:48:29,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 23:48:29,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 23:48:29,616 INFO L87 Difference]: Start difference. First operand 50 states and 62 transitions. Second operand 3 states. [2020-12-22 23:48:29,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 23:48:29,685 INFO L93 Difference]: Finished difference Result 111 states and 139 transitions. [2020-12-22 23:48:29,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 23:48:29,686 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-12-22 23:48:29,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 23:48:29,687 INFO L225 Difference]: With dead ends: 111 [2020-12-22 23:48:29,687 INFO L226 Difference]: Without dead ends: 73 [2020-12-22 23:48:29,688 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 23:48:29,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-12-22 23:48:29,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 51. [2020-12-22 23:48:29,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-12-22 23:48:29,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 63 transitions. [2020-12-22 23:48:29,705 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 63 transitions. Word has length 23 [2020-12-22 23:48:29,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 23:48:29,705 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 63 transitions. [2020-12-22 23:48:29,705 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 23:48:29,706 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 63 transitions. [2020-12-22 23:48:29,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-22 23:48:29,707 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 23:48:29,708 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 23:48:29,708 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 23:48:29,708 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 23:48:29,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 23:48:29,709 INFO L82 PathProgramCache]: Analyzing trace with hash -2112056943, now seen corresponding path program 1 times [2020-12-22 23:48:29,714 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 23:48:29,715 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738898032] [2020-12-22 23:48:29,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 23:48:29,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 23:48:29,821 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-22 23:48:29,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738898032] [2020-12-22 23:48:29,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2048082185] [2020-12-22 23:48:29,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 23:48:29,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 23:48:29,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-22 23:48:29,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 23:48:29,957 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-22 23:48:29,957 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 23:48:29,958 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 7 [2020-12-22 23:48:29,958 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648473715] [2020-12-22 23:48:29,958 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 23:48:29,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 23:48:29,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 23:48:29,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-22 23:48:29,960 INFO L87 Difference]: Start difference. First operand 51 states and 63 transitions. Second operand 7 states. [2020-12-22 23:48:30,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 23:48:30,256 INFO L93 Difference]: Finished difference Result 312 states and 396 transitions. [2020-12-22 23:48:30,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 23:48:30,257 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2020-12-22 23:48:30,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 23:48:30,261 INFO L225 Difference]: With dead ends: 312 [2020-12-22 23:48:30,261 INFO L226 Difference]: Without dead ends: 268 [2020-12-22 23:48:30,262 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2020-12-22 23:48:30,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2020-12-22 23:48:30,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 72. [2020-12-22 23:48:30,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-12-22 23:48:30,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 90 transitions. [2020-12-22 23:48:30,278 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 90 transitions. Word has length 25 [2020-12-22 23:48:30,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 23:48:30,278 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 90 transitions. [2020-12-22 23:48:30,279 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 23:48:30,279 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 90 transitions. [2020-12-22 23:48:30,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-12-22 23:48:30,280 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 23:48:30,280 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 23:48:30,493 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 23:48:30,494 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 23:48:30,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 23:48:30,495 INFO L82 PathProgramCache]: Analyzing trace with hash -369930547, now seen corresponding path program 2 times [2020-12-22 23:48:30,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 23:48:30,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060130377] [2020-12-22 23:48:30,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 23:48:30,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 23:48:30,568 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-12-22 23:48:30,569 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060130377] [2020-12-22 23:48:30,569 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 23:48:30,569 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 23:48:30,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453158136] [2020-12-22 23:48:30,570 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 23:48:30,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 23:48:30,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 23:48:30,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 23:48:30,572 INFO L87 Difference]: Start difference. First operand 72 states and 90 transitions. Second operand 4 states. [2020-12-22 23:48:30,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 23:48:30,602 INFO L93 Difference]: Finished difference Result 139 states and 174 transitions. [2020-12-22 23:48:30,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 23:48:30,603 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2020-12-22 23:48:30,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 23:48:30,604 INFO L225 Difference]: With dead ends: 139 [2020-12-22 23:48:30,604 INFO L226 Difference]: Without dead ends: 102 [2020-12-22 23:48:30,605 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 23:48:30,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2020-12-22 23:48:30,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 75. [2020-12-22 23:48:30,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-12-22 23:48:30,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 93 transitions. [2020-12-22 23:48:30,615 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 93 transitions. Word has length 29 [2020-12-22 23:48:30,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 23:48:30,615 INFO L481 AbstractCegarLoop]: Abstraction has 75 states and 93 transitions. [2020-12-22 23:48:30,615 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 23:48:30,615 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 93 transitions. [2020-12-22 23:48:30,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-12-22 23:48:30,616 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 23:48:30,617 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 23:48:30,617 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 23:48:30,617 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 23:48:30,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 23:48:30,618 INFO L82 PathProgramCache]: Analyzing trace with hash 811776259, now seen corresponding path program 1 times [2020-12-22 23:48:30,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 23:48:30,618 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031150136] [2020-12-22 23:48:30,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 23:48:30,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 23:48:30,694 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-12-22 23:48:30,695 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031150136] [2020-12-22 23:48:30,695 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 23:48:30,695 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 23:48:30,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631348036] [2020-12-22 23:48:30,696 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 23:48:30,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 23:48:30,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 23:48:30,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 23:48:30,697 INFO L87 Difference]: Start difference. First operand 75 states and 93 transitions. Second operand 4 states. [2020-12-22 23:48:30,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 23:48:30,718 INFO L93 Difference]: Finished difference Result 84 states and 104 transitions. [2020-12-22 23:48:30,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 23:48:30,719 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2020-12-22 23:48:30,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 23:48:30,719 INFO L225 Difference]: With dead ends: 84 [2020-12-22 23:48:30,719 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 23:48:30,720 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 23:48:30,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 23:48:30,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 23:48:30,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 23:48:30,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 23:48:30,721 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2020-12-22 23:48:30,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 23:48:30,721 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 23:48:30,722 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 23:48:30,722 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 23:48:30,722 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 23:48:30,722 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 23:48:30,724 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-22 23:48:31,007 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2020-12-22 23:48:31,007 INFO L189 CegarLoopUtils]: For program point L52(lines 52 54) no Hoare annotation was computed. [2020-12-22 23:48:31,008 INFO L189 CegarLoopUtils]: For program point L52-2(lines 52 54) no Hoare annotation was computed. [2020-12-22 23:48:31,008 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-22 23:48:31,008 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-22 23:48:31,008 INFO L189 CegarLoopUtils]: For program point L61-2(lines 61 65) no Hoare annotation was computed. [2020-12-22 23:48:31,008 INFO L185 CegarLoopUtils]: At program point L61-3(lines 61 65) the Hoare annotation is: (and (= ULTIMATE.start_main_~n~0 0) (= ULTIMATE.start_main_~x~0 0)) [2020-12-22 23:48:31,009 INFO L189 CegarLoopUtils]: For program point L61-4(lines 61 65) no Hoare annotation was computed. [2020-12-22 23:48:31,009 INFO L189 CegarLoopUtils]: For program point L62-2(lines 62 64) no Hoare annotation was computed. [2020-12-22 23:48:31,009 INFO L185 CegarLoopUtils]: At program point L62-3(lines 62 64) the Hoare annotation is: false [2020-12-22 23:48:31,010 INFO L189 CegarLoopUtils]: For program point L13(line 13) no Hoare annotation was computed. [2020-12-22 23:48:31,010 INFO L189 CegarLoopUtils]: For program point L13-1(line 13) no Hoare annotation was computed. [2020-12-22 23:48:31,010 INFO L189 CegarLoopUtils]: For program point L13-3(line 13) no Hoare annotation was computed. [2020-12-22 23:48:31,010 INFO L189 CegarLoopUtils]: For program point L13-4(line 13) no Hoare annotation was computed. [2020-12-22 23:48:31,011 INFO L189 CegarLoopUtils]: For program point L13-5(line 13) no Hoare annotation was computed. [2020-12-22 23:48:31,011 INFO L189 CegarLoopUtils]: For program point L13-7(line 13) no Hoare annotation was computed. [2020-12-22 23:48:31,011 INFO L189 CegarLoopUtils]: For program point L13-8(line 13) no Hoare annotation was computed. [2020-12-22 23:48:31,011 INFO L189 CegarLoopUtils]: For program point L13-9(line 13) no Hoare annotation was computed. [2020-12-22 23:48:31,011 INFO L189 CegarLoopUtils]: For program point L13-11(line 13) no Hoare annotation was computed. [2020-12-22 23:48:31,013 INFO L189 CegarLoopUtils]: For program point L55-2(lines 55 59) no Hoare annotation was computed. [2020-12-22 23:48:31,013 INFO L189 CegarLoopUtils]: For program point L22-2(lines 22 24) no Hoare annotation was computed. [2020-12-22 23:48:31,014 INFO L185 CegarLoopUtils]: At program point L55-3(lines 55 59) the Hoare annotation is: (and (= ULTIMATE.start_main_~n~0 0) (= ULTIMATE.start_main_~x~0 0) (= ULTIMATE.start_elem_exists_~i~0 0) (= ULTIMATE.start_elem_exists_~size 0)) [2020-12-22 23:48:31,015 INFO L185 CegarLoopUtils]: At program point L22-3(lines 22 24) the Hoare annotation is: (and (= ULTIMATE.start_main_~n~0 0) (= ULTIMATE.start_main_~x~0 0) (= ULTIMATE.start_elem_exists_~i~0 0) (= ULTIMATE.start_elem_exists_~size 0)) [2020-12-22 23:48:31,015 INFO L189 CegarLoopUtils]: For program point L22-4(lines 22 24) no Hoare annotation was computed. [2020-12-22 23:48:31,016 INFO L189 CegarLoopUtils]: For program point L47-2(lines 47 50) no Hoare annotation was computed. [2020-12-22 23:48:31,016 INFO L185 CegarLoopUtils]: At program point L47-3(lines 47 50) the Hoare annotation is: (and (= ULTIMATE.start_main_~n~0 0) (= ULTIMATE.start_main_~x~0 0)) [2020-12-22 23:48:31,016 INFO L189 CegarLoopUtils]: For program point L47-4(lines 47 50) no Hoare annotation was computed. [2020-12-22 23:48:31,016 INFO L189 CegarLoopUtils]: For program point L39-2(lines 39 43) no Hoare annotation was computed. [2020-12-22 23:48:31,016 INFO L185 CegarLoopUtils]: At program point L39-3(lines 39 43) the Hoare annotation is: (and (= ULTIMATE.start_main_~n~0 0) (= ULTIMATE.start_main_~x~0 0)) [2020-12-22 23:48:31,017 INFO L189 CegarLoopUtils]: For program point L39-4(lines 39 43) no Hoare annotation was computed. [2020-12-22 23:48:31,017 INFO L189 CegarLoopUtils]: For program point L23(line 23) no Hoare annotation was computed. [2020-12-22 23:48:31,017 INFO L189 CegarLoopUtils]: For program point L56-2(lines 56 58) no Hoare annotation was computed. [2020-12-22 23:48:31,017 INFO L185 CegarLoopUtils]: At program point L56-3(lines 56 58) the Hoare annotation is: false [2020-12-22 23:48:31,017 INFO L189 CegarLoopUtils]: For program point L40-2(lines 40 42) no Hoare annotation was computed. [2020-12-22 23:48:31,017 INFO L185 CegarLoopUtils]: At program point L40-3(lines 40 42) the Hoare annotation is: false [2020-12-22 23:48:31,018 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-22 23:48:31,018 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2020-12-22 23:48:31,018 INFO L192 CegarLoopUtils]: At program point L66(lines 27 67) the Hoare annotation is: true [2020-12-22 23:48:31,018 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-22 23:48:31,018 INFO L189 CegarLoopUtils]: For program point L33-2(lines 33 36) no Hoare annotation was computed. [2020-12-22 23:48:31,018 INFO L185 CegarLoopUtils]: At program point L33-3(lines 33 36) the Hoare annotation is: (= ULTIMATE.start_main_~n~0 0) [2020-12-22 23:48:31,019 INFO L189 CegarLoopUtils]: For program point L33-4(lines 33 36) no Hoare annotation was computed. [2020-12-22 23:48:31,019 INFO L185 CegarLoopUtils]: At program point L25(lines 20 26) the Hoare annotation is: (and (= ULTIMATE.start_main_~n~0 0) (= ULTIMATE.start_main_~x~0 0) (= ULTIMATE.start_elem_exists_~i~0 0) (= |ULTIMATE.start_elem_exists_#res| 0) (= ULTIMATE.start_elem_exists_~size 0)) [2020-12-22 23:48:31,019 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2020-12-22 23:48:31,019 INFO L185 CegarLoopUtils]: At program point L18(lines 16 19) the Hoare annotation is: false [2020-12-22 23:48:31,020 INFO L189 CegarLoopUtils]: For program point L51-2(lines 51 60) no Hoare annotation was computed. [2020-12-22 23:48:31,021 INFO L185 CegarLoopUtils]: At program point L51-3(lines 51 60) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~n~0 0)) (.cse1 (= ULTIMATE.start_main_~x~0 0))) (or (and .cse0 .cse1 (= ULTIMATE.start_elem_exists_~i~0 0) (= ULTIMATE.start_elem_exists_~size 0)) (and .cse0 .cse1 (= ULTIMATE.start_main_~v~0 0)))) [2020-12-22 23:48:31,021 INFO L189 CegarLoopUtils]: For program point L51-4(lines 51 60) no Hoare annotation was computed. [2020-12-22 23:48:31,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 11:48:31 BoogieIcfgContainer [2020-12-22 23:48:31,053 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 23:48:31,054 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 23:48:31,054 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 23:48:31,054 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 23:48:31,055 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:48:27" (3/4) ... [2020-12-22 23:48:31,059 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 23:48:31,081 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-12-22 23:48:31,081 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-12-22 23:48:31,082 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 23:48:31,082 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 23:48:31,126 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((n == 0 && x == 0) && i == 0) && \result == 0) && size == 0 [2020-12-22 23:48:31,180 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/array-examples/data_structures_set_multi_proc_trivial_ground.i-witness.graphml [2020-12-22 23:48:31,180 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 23:48:31,183 INFO L168 Benchmark]: Toolchain (without parser) took 4559.17 ms. Allocated memory was 153.1 MB in the beginning and 184.5 MB in the end (delta: 31.5 MB). Free memory was 128.6 MB in the beginning and 139.8 MB in the end (delta: -11.2 MB). Peak memory consumption was 20.7 MB. Max. memory is 8.0 GB. [2020-12-22 23:48:31,183 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 153.1 MB. Free memory was 126.4 MB in the beginning and 126.2 MB in the end (delta: 157.3 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 23:48:31,184 INFO L168 Benchmark]: CACSL2BoogieTranslator took 420.46 ms. Allocated memory is still 153.1 MB. Free memory was 128.4 MB in the beginning and 117.8 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-12-22 23:48:31,184 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.42 ms. Allocated memory is still 153.1 MB. Free memory was 117.6 MB in the beginning and 115.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 23:48:31,185 INFO L168 Benchmark]: Boogie Preprocessor took 76.88 ms. Allocated memory is still 153.1 MB. Free memory was 115.7 MB in the beginning and 114.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 23:48:31,185 INFO L168 Benchmark]: RCFGBuilder took 751.40 ms. Allocated memory is still 153.1 MB. Free memory was 114.2 MB in the beginning and 124.1 MB in the end (delta: -9.9 MB). Peak memory consumption was 12.8 MB. Max. memory is 8.0 GB. [2020-12-22 23:48:31,186 INFO L168 Benchmark]: TraceAbstraction took 3070.29 ms. Allocated memory was 153.1 MB in the beginning and 184.5 MB in the end (delta: 31.5 MB). Free memory was 123.6 MB in the beginning and 144.0 MB in the end (delta: -20.4 MB). Peak memory consumption was 77.1 MB. Max. memory is 8.0 GB. [2020-12-22 23:48:31,187 INFO L168 Benchmark]: Witness Printer took 126.43 ms. Allocated memory is still 184.5 MB. Free memory was 144.0 MB in the beginning and 139.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-12-22 23:48:31,193 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 153.1 MB. Free memory was 126.4 MB in the beginning and 126.2 MB in the end (delta: 157.3 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 420.46 ms. Allocated memory is still 153.1 MB. Free memory was 128.4 MB in the beginning and 117.8 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 93.42 ms. Allocated memory is still 153.1 MB. Free memory was 117.6 MB in the beginning and 115.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 76.88 ms. Allocated memory is still 153.1 MB. Free memory was 115.7 MB in the beginning and 114.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 751.40 ms. Allocated memory is still 153.1 MB. Free memory was 114.2 MB in the beginning and 124.1 MB in the end (delta: -9.9 MB). Peak memory consumption was 12.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3070.29 ms. Allocated memory was 153.1 MB in the beginning and 184.5 MB in the end (delta: 31.5 MB). Free memory was 123.6 MB in the beginning and 144.0 MB in the end (delta: -20.4 MB). Peak memory consumption was 77.1 MB. Max. memory is 8.0 GB. * Witness Printer took 126.43 ms. Allocated memory is still 184.5 MB. Free memory was 144.0 MB in the beginning and 139.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 61]: Loop Invariant Derived loop invariant: n == 0 && x == 0 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 51]: Loop Invariant Derived loop invariant: (((n == 0 && x == 0) && i == 0) && size == 0) || ((n == 0 && x == 0) && v == 0) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: ((n == 0 && x == 0) && i == 0) && size == 0 - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: n == 0 - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: ((n == 0 && x == 0) && i == 0) && size == 0 - InvariantResult [Line: 56]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: n == 0 && x == 0 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: (((n == 0 && x == 0) && i == 0) && \result == 0) && size == 0 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: n == 0 && x == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 48 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.6s, OverallIterations: 7, TraceHistogramMax: 3, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 280 SDtfs, 715 SDslu, 447 SDs, 0 SdLazy, 219 SolverSat, 95 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 365 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 13 LocationsWithAnnotation, 13 PreInvPairs, 29 NumberOfFragments, 95 HoareAnnotationTreeSize, 13 FomulaSimplifications, 454 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 13 FomulaSimplificationsInter, 21 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 171 NumberOfCodeBlocks, 171 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 162 ConstructedInterpolants, 0 QuantifiedInterpolants, 5516 SizeOfPredicates, 0 NumberOfNonLiveVariables, 204 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 9 InterpolantComputations, 5 PerfectInterpolantSequences, 39/46 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...