/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/bitvector/modulus-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 01:37:54,290 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 01:37:54,294 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 01:37:54,350 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 01:37:54,351 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 01:37:54,356 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 01:37:54,361 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 01:37:54,367 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 01:37:54,370 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 01:37:54,379 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 01:37:54,383 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 01:37:54,385 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 01:37:54,386 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 01:37:54,389 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 01:37:54,391 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 01:37:54,393 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 01:37:54,405 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 01:37:54,413 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 01:37:54,417 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 01:37:54,424 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 01:37:54,429 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 01:37:54,431 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 01:37:54,432 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 01:37:54,434 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 01:37:54,444 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-23 01:37:54,449 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 01:37:54,450 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 01:37:54,452 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 01:37:54,453 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 01:37:54,454 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 01:37:54,454 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 01:37:54,455 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 01:37:54,455 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 01:37:54,456 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 01:37:54,457 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 01:37:54,457 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 01:37:54,463 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 01:37:54,516 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 01:37:54,517 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 01:37:54,521 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 01:37:54,521 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 01:37:54,522 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 01:37:54,522 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 01:37:54,522 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 01:37:54,523 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 01:37:54,523 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 01:37:54,523 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 01:37:54,524 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 01:37:54,524 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 01:37:54,525 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 01:37:54,525 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 01:37:54,525 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 01:37:54,525 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 01:37:54,526 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 01:37:54,526 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 01:37:54,526 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 01:37:54,526 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 01:37:54,527 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 01:37:54,527 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 01:37:54,527 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 01:37:54,527 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 01:37:54,527 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 01:37:54,528 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 01:37:54,946 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 01:37:55,009 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 01:37:55,013 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 01:37:55,014 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 01:37:55,015 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 01:37:55,016 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/modulus-2.i [2020-12-23 01:37:55,119 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/5ed878873/a0d625350754491485c220dc9b45bfd8/FLAGff910fef3 [2020-12-23 01:37:55,793 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 01:37:55,794 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/bitvector/modulus-2.i [2020-12-23 01:37:55,802 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/5ed878873/a0d625350754491485c220dc9b45bfd8/FLAGff910fef3 [2020-12-23 01:37:56,167 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/5ed878873/a0d625350754491485c220dc9b45bfd8 [2020-12-23 01:37:56,170 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 01:37:56,173 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 01:37:56,176 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 01:37:56,176 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 01:37:56,181 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 01:37:56,182 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:37:56" (1/1) ... [2020-12-23 01:37:56,184 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27bbe103 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:37:56, skipping insertion in model container [2020-12-23 01:37:56,185 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:37:56" (1/1) ... [2020-12-23 01:37:56,193 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 01:37:56,215 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-23 01:37:56,373 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/bitvector/modulus-2.i[947,960] left hand side expression in assignment: lhs: VariableLHS[~d~0,] left hand side expression in assignment: lhs: VariableLHS[~m~0,] left hand side expression in assignment: lhs: VariableLHS[~m~0,] left hand side expression in assignment: lhs: VariableLHS[~n~0,] left hand side expression in assignment: lhs: VariableLHS[~n~0,] left hand side expression in assignment: lhs: VariableLHS[~m~0,] [2020-12-23 01:37:56,395 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 01:37:56,405 INFO L203 MainTranslator]: Completed pre-run [2020-12-23 01:37:56,421 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/bitvector/modulus-2.i[947,960] left hand side expression in assignment: lhs: VariableLHS[~d~0,] left hand side expression in assignment: lhs: VariableLHS[~m~0,] left hand side expression in assignment: lhs: VariableLHS[~m~0,] left hand side expression in assignment: lhs: VariableLHS[~n~0,] left hand side expression in assignment: lhs: VariableLHS[~n~0,] left hand side expression in assignment: lhs: VariableLHS[~m~0,] [2020-12-23 01:37:56,428 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 01:37:56,446 INFO L208 MainTranslator]: Completed translation [2020-12-23 01:37:56,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:37:56 WrapperNode [2020-12-23 01:37:56,447 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 01:37:56,449 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 01:37:56,449 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 01:37:56,449 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 01:37:56,459 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:37:56" (1/1) ... [2020-12-23 01:37:56,469 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:37:56" (1/1) ... [2020-12-23 01:37:56,493 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 01:37:56,493 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 01:37:56,494 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 01:37:56,494 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 01:37:56,505 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:37:56" (1/1) ... [2020-12-23 01:37:56,506 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:37:56" (1/1) ... [2020-12-23 01:37:56,508 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:37:56" (1/1) ... [2020-12-23 01:37:56,509 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:37:56" (1/1) ... [2020-12-23 01:37:56,523 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:37:56" (1/1) ... [2020-12-23 01:37:56,535 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:37:56" (1/1) ... [2020-12-23 01:37:56,537 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:37:56" (1/1) ... [2020-12-23 01:37:56,546 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 01:37:56,547 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 01:37:56,547 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 01:37:56,548 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 01:37:56,549 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:37:56" (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 01:37:56,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 01:37:56,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 01:37:56,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 01:37:56,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 01:37:56,916 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 01:37:56,917 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2020-12-23 01:37:56,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:37:56 BoogieIcfgContainer [2020-12-23 01:37:56,919 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 01:37:56,921 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 01:37:56,922 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 01:37:56,926 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 01:37:56,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 01:37:56" (1/3) ... [2020-12-23 01:37:56,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f753646 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:37:56, skipping insertion in model container [2020-12-23 01:37:56,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:37:56" (2/3) ... [2020-12-23 01:37:56,929 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f753646 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:37:56, skipping insertion in model container [2020-12-23 01:37:56,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:37:56" (3/3) ... [2020-12-23 01:37:56,931 INFO L111 eAbstractionObserver]: Analyzing ICFG modulus-2.i [2020-12-23 01:37:56,989 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 01:37:57,001 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 01:37:57,060 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-23 01:37:57,094 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 01:37:57,095 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 01:37:57,095 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 01:37:57,095 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 01:37:57,095 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 01:37:57,096 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 01:37:57,096 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 01:37:57,096 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 01:37:57,113 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2020-12-23 01:37:57,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-23 01:37:57,119 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:37:57,120 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:37:57,120 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:37:57,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:37:57,127 INFO L82 PathProgramCache]: Analyzing trace with hash -1232845228, now seen corresponding path program 1 times [2020-12-23 01:37:57,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:37:57,140 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272832866] [2020-12-23 01:37:57,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:37:57,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:37:57,308 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 01:37:57,309 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272832866] [2020-12-23 01:37:57,310 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 01:37:57,310 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 01:37:57,311 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603721396] [2020-12-23 01:37:57,317 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-23 01:37:57,317 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:37:57,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-23 01:37:57,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 01:37:57,337 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 2 states. [2020-12-23 01:37:57,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:37:57,358 INFO L93 Difference]: Finished difference Result 31 states and 44 transitions. [2020-12-23 01:37:57,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-23 01:37:57,359 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-12-23 01:37:57,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:37:57,369 INFO L225 Difference]: With dead ends: 31 [2020-12-23 01:37:57,369 INFO L226 Difference]: Without dead ends: 13 [2020-12-23 01:37:57,373 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 01:37:57,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-12-23 01:37:57,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-12-23 01:37:57,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-12-23 01:37:57,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2020-12-23 01:37:57,410 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 10 [2020-12-23 01:37:57,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:37:57,411 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2020-12-23 01:37:57,411 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-23 01:37:57,411 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2020-12-23 01:37:57,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-23 01:37:57,412 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:37:57,412 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:37:57,413 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 01:37:57,413 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:37:57,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:37:57,414 INFO L82 PathProgramCache]: Analyzing trace with hash -2042191854, now seen corresponding path program 1 times [2020-12-23 01:37:57,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:37:57,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084495820] [2020-12-23 01:37:57,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:37:57,436 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:37:57,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1293518054] [2020-12-23 01:37:57,437 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 01:37:57,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:37:57,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 20 conjunts are in the unsatisfiable core [2020-12-23 01:37:57,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:37:57,967 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:37:58,144 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:37:58,291 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:37:58,415 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:37:58,525 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:37:58,573 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 01:37:58,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084495820] [2020-12-23 01:37:58,574 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:37:58,575 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1293518054] [2020-12-23 01:37:58,575 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 01:37:58,575 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-23 01:37:58,575 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071959671] [2020-12-23 01:37:58,577 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 01:37:58,577 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:37:58,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 01:37:58,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-23 01:37:58,579 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand 7 states. [2020-12-23 01:37:58,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:37:58,729 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2020-12-23 01:37:58,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-23 01:37:58,730 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2020-12-23 01:37:58,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:37:58,731 INFO L225 Difference]: With dead ends: 23 [2020-12-23 01:37:58,731 INFO L226 Difference]: Without dead ends: 19 [2020-12-23 01:37:58,732 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2020-12-23 01:37:58,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-12-23 01:37:58,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 15. [2020-12-23 01:37:58,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-12-23 01:37:58,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2020-12-23 01:37:58,737 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 18 transitions. Word has length 10 [2020-12-23 01:37:58,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:37:58,738 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 18 transitions. [2020-12-23 01:37:58,738 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 01:37:58,738 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2020-12-23 01:37:58,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-23 01:37:58,739 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:37:58,739 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:37:58,953 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-12-23 01:37:58,954 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:37:58,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:37:58,955 INFO L82 PathProgramCache]: Analyzing trace with hash -2042132272, now seen corresponding path program 1 times [2020-12-23 01:37:58,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:37:58,956 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684876890] [2020-12-23 01:37:58,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:37:58,974 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:37:58,975 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [185020285] [2020-12-23 01:37:58,975 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 [2020-12-23 01:37:59,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:37:59,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 18 conjunts are in the unsatisfiable core [2020-12-23 01:37:59,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:37:59,158 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:37:59,187 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:37:59,295 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:37:59,392 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:37:59,435 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 01:37:59,436 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684876890] [2020-12-23 01:37:59,436 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:37:59,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [185020285] [2020-12-23 01:37:59,443 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 01:37:59,443 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-23 01:37:59,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316596932] [2020-12-23 01:37:59,444 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 01:37:59,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:37:59,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 01:37:59,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-12-23 01:37:59,448 INFO L87 Difference]: Start difference. First operand 15 states and 18 transitions. Second operand 7 states. [2020-12-23 01:37:59,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:37:59,569 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2020-12-23 01:37:59,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-23 01:37:59,570 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2020-12-23 01:37:59,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:37:59,570 INFO L225 Difference]: With dead ends: 19 [2020-12-23 01:37:59,571 INFO L226 Difference]: Without dead ends: 14 [2020-12-23 01:37:59,571 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-12-23 01:37:59,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2020-12-23 01:37:59,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2020-12-23 01:37:59,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-12-23 01:37:59,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2020-12-23 01:37:59,575 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 10 [2020-12-23 01:37:59,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:37:59,575 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2020-12-23 01:37:59,575 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 01:37:59,576 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2020-12-23 01:37:59,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-23 01:37:59,576 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:37:59,576 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:37:59,789 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:37:59,790 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:37:59,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:37:59,791 INFO L82 PathProgramCache]: Analyzing trace with hash 387361989, now seen corresponding path program 1 times [2020-12-23 01:37:59,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:37:59,792 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251905328] [2020-12-23 01:37:59,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:37:59,808 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:37:59,809 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1651816017] [2020-12-23 01:37:59,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:37:59,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:37:59,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 01:37:59,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:37:59,937 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 01:37:59,938 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251905328] [2020-12-23 01:37:59,938 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:37:59,938 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1651816017] [2020-12-23 01:37:59,938 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 01:37:59,938 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 01:37:59,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453101710] [2020-12-23 01:37:59,939 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 01:37:59,940 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:37:59,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 01:37:59,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 01:37:59,942 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand 4 states. [2020-12-23 01:37:59,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:37:59,987 INFO L93 Difference]: Finished difference Result 23 states and 28 transitions. [2020-12-23 01:37:59,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 01:37:59,987 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-12-23 01:37:59,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:37:59,989 INFO L225 Difference]: With dead ends: 23 [2020-12-23 01:37:59,989 INFO L226 Difference]: Without dead ends: 15 [2020-12-23 01:37:59,989 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 01:37:59,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-12-23 01:37:59,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-12-23 01:37:59,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-12-23 01:37:59,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2020-12-23 01:37:59,996 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 13 [2020-12-23 01:37:59,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:37:59,997 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2020-12-23 01:37:59,997 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 01:37:59,997 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2020-12-23 01:37:59,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-23 01:37:59,999 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:37:59,999 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:38:00,212 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:38:00,213 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:38:00,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:38:00,214 INFO L82 PathProgramCache]: Analyzing trace with hash 1988806915, now seen corresponding path program 1 times [2020-12-23 01:38:00,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:38:00,214 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827568451] [2020-12-23 01:38:00,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:38:00,247 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:38:00,250 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [892319159] [2020-12-23 01:38:00,250 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 01:38:00,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:38:00,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 22 conjunts are in the unsatisfiable core [2020-12-23 01:38:00,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:38:00,453 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:38:00,454 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:00,455 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:38:00,456 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:00,457 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:00,462 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 2, 1] term [2020-12-23 01:38:00,463 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:00,467 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:38:00,468 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-23 01:38:00,469 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:00,472 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:38:00,533 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:00,547 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 01:38:00,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827568451] [2020-12-23 01:38:00,548 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:38:00,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [892319159] [2020-12-23 01:38:00,549 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 01:38:00,549 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-12-23 01:38:00,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582802867] [2020-12-23 01:38:00,550 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-23 01:38:00,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:38:00,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-23 01:38:00,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-12-23 01:38:00,551 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 8 states. [2020-12-23 01:38:00,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:38:00,707 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2020-12-23 01:38:00,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-23 01:38:00,708 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2020-12-23 01:38:00,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:38:00,709 INFO L225 Difference]: With dead ends: 19 [2020-12-23 01:38:00,709 INFO L226 Difference]: Without dead ends: 15 [2020-12-23 01:38:00,710 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-12-23 01:38:00,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-12-23 01:38:00,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-12-23 01:38:00,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-12-23 01:38:00,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2020-12-23 01:38:00,713 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 14 [2020-12-23 01:38:00,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:38:00,714 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2020-12-23 01:38:00,714 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-23 01:38:00,714 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2020-12-23 01:38:00,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-23 01:38:00,715 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:38:00,715 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:38:00,915 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:38:00,916 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:38:00,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:38:00,917 INFO L82 PathProgramCache]: Analyzing trace with hash 1988866497, now seen corresponding path program 1 times [2020-12-23 01:38:00,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:38:00,918 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586798610] [2020-12-23 01:38:00,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:38:00,944 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:38:00,944 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1092994102] [2020-12-23 01:38:00,945 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 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 01:38:01,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:38:01,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 21 conjunts are in the unsatisfiable core [2020-12-23 01:38:01,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:38:01,127 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:38:01,128 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:38:01,129 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,130 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:38:01,130 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,132 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:38:01,132 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,134 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,137 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:38:01,138 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-23 01:38:01,139 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,141 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:38:01,144 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:38:01,146 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:38:01,147 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:38:01,149 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,151 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:38:01,153 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:38:01,154 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,154 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,155 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:38:01,156 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,157 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:38:01,158 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,160 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,161 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-23 01:38:01,162 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,164 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:38:01,165 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-23 01:38:01,166 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,167 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,168 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,170 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:38:01,174 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:38:01,176 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:38:01,177 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:38:01,178 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,180 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:38:01,181 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,183 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:38:01,185 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,187 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,191 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:38:01,193 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-23 01:38:01,196 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,200 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:38:01,203 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:38:01,204 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:38:01,205 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:38:01,206 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,208 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:38:01,209 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:38:01,210 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,211 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,212 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:38:01,213 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,214 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:38:01,215 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,217 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,218 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-23 01:38:01,221 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,223 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:38:01,224 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-23 01:38:01,225 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,226 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,228 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,230 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:38:01,232 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:38:01,234 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:38:01,235 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,236 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,237 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:38:01,238 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,239 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:38:01,239 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,241 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,242 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-23 01:38:01,244 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,246 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:38:01,247 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-23 01:38:01,249 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,250 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,252 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,254 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:38:01,259 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:38:01,261 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,262 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,263 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:38:01,264 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,265 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:38:01,266 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,269 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 2, 2, 2, 2, 2, 2, 1] term [2020-12-23 01:38:01,270 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:38:01,276 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,278 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-23 01:38:01,279 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,281 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:38:01,282 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-23 01:38:01,283 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,284 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,285 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,287 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:38:01,294 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:38:01,296 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-23 01:38:01,297 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,299 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,300 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,302 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:38:01,305 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 5 disjuncts [2020-12-23 01:38:01,311 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,312 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,313 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,315 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 2, 2, 2, 2, 1] term [2020-12-23 01:38:01,316 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:38:01,321 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:38:01,324 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:38:01,330 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-23 01:38:01,332 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,334 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:38:01,335 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 6 disjuncts [2020-12-23 01:38:01,337 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,339 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:38:01,347 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:38:01,355 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:38:01,356 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,357 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:38:01,358 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,359 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:38:01,360 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,362 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,364 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:38:01,366 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-23 01:38:01,369 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,371 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:38:01,374 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:38:01,377 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:38:01,378 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:38:01,379 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,381 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:38:01,383 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:38:01,384 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:38:01,385 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-23 01:38:01,387 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,388 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:38:01,393 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:38:01,395 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:38:01,396 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:38:01,396 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,399 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:38:01,400 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:38:01,403 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-23 01:38:01,405 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,406 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:38:01,408 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 6 disjuncts [2020-12-23 01:38:01,412 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,413 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:38:01,423 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:38:01,432 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:38:01,434 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:38:01,435 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:38:01,436 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,438 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:38:01,440 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 4 disjuncts [2020-12-23 01:38:01,443 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:38:01,448 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:38:01,450 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:38:01,452 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,455 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:38:01,456 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 2, 2, 2, 1] term [2020-12-23 01:38:01,457 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:38:01,462 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:38:01,463 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,463 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:38:01,464 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,466 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:38:01,467 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,468 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:38:01,470 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 2, 2, 2, 2, 2, 1] term [2020-12-23 01:38:01,471 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:38:01,685 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:38:01,737 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:38:01,809 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:38:01,865 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 01:38:01,866 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586798610] [2020-12-23 01:38:01,866 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:38:01,866 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1092994102] [2020-12-23 01:38:01,866 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 01:38:01,867 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-12-23 01:38:01,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732543360] [2020-12-23 01:38:01,867 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 01:38:01,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:38:01,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 01:38:01,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-12-23 01:38:01,868 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand 10 states. [2020-12-23 01:38:02,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:38:02,070 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2020-12-23 01:38:02,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-23 01:38:02,070 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 14 [2020-12-23 01:38:02,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:38:02,071 INFO L225 Difference]: With dead ends: 15 [2020-12-23 01:38:02,071 INFO L226 Difference]: Without dead ends: 0 [2020-12-23 01:38:02,071 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2020-12-23 01:38:02,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-23 01:38:02,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-23 01:38:02,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-23 01:38:02,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-23 01:38:02,072 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-12-23 01:38:02,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:38:02,073 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-23 01:38:02,073 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 01:38:02,073 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-23 01:38:02,073 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-23 01:38:02,279 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-12-23 01:38:02,282 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-23 01:38:02,344 INFO L185 CegarLoopUtils]: At program point L48-2(lines 48 51) the Hoare annotation is: (let ((.cse0 (mod ULTIMATE.start_main_~d~0 4294967296))) (and (< 0 .cse0) (or (= ULTIMATE.start_assume_abort_if_not_~cond 0) (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (< .cse0 4294967295))) [2020-12-23 01:38:02,344 INFO L189 CegarLoopUtils]: For program point L48-3(lines 48 51) no Hoare annotation was computed. [2020-12-23 01:38:02,344 INFO L189 CegarLoopUtils]: For program point L44(lines 44 58) no Hoare annotation was computed. [2020-12-23 01:38:02,345 INFO L192 CegarLoopUtils]: At program point L44-1(lines 44 58) the Hoare annotation is: true [2020-12-23 01:38:02,345 INFO L189 CegarLoopUtils]: For program point L3(line 3) no Hoare annotation was computed. [2020-12-23 01:38:02,345 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-23 01:38:02,345 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-23 01:38:02,345 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-23 01:38:02,345 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 21) no Hoare annotation was computed. [2020-12-23 01:38:02,345 INFO L189 CegarLoopUtils]: For program point L20(lines 20 22) no Hoare annotation was computed. [2020-12-23 01:38:02,346 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-23 01:38:02,346 INFO L189 CegarLoopUtils]: For program point L54-1(lines 54 56) no Hoare annotation was computed. [2020-12-23 01:38:02,346 INFO L189 CegarLoopUtils]: For program point L21(line 21) no Hoare annotation was computed. [2020-12-23 01:38:02,346 INFO L185 CegarLoopUtils]: At program point L46-2(lines 46 53) the Hoare annotation is: (and (< 0 (mod ULTIMATE.start_main_~d~0 4294967296)) (or (= ULTIMATE.start_assume_abort_if_not_~cond 0) (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (= ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~m~0)) [2020-12-23 01:38:02,346 INFO L189 CegarLoopUtils]: For program point L46-3(lines 44 58) no Hoare annotation was computed. [2020-12-23 01:38:02,346 INFO L192 CegarLoopUtils]: At program point L59(lines 36 60) the Hoare annotation is: true [2020-12-23 01:38:02,346 INFO L189 CegarLoopUtils]: For program point L2(lines 2 4) no Hoare annotation was computed. [2020-12-23 01:38:02,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 01:38:02 BoogieIcfgContainer [2020-12-23 01:38:02,368 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-23 01:38:02,369 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-23 01:38:02,369 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-23 01:38:02,369 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-23 01:38:02,370 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:37:56" (3/4) ... [2020-12-23 01:38:02,374 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-23 01:38:02,389 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-23 01:38:02,389 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-23 01:38:02,389 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-23 01:38:02,389 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-23 01:38:02,438 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/bitvector/modulus-2.i-witness.graphml [2020-12-23 01:38:02,439 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-23 01:38:02,442 INFO L168 Benchmark]: Toolchain (without parser) took 6267.85 ms. Allocated memory was 151.0 MB in the beginning and 202.4 MB in the end (delta: 51.4 MB). Free memory was 126.4 MB in the beginning and 102.9 MB in the end (delta: 23.5 MB). Peak memory consumption was 76.2 MB. Max. memory is 8.0 GB. [2020-12-23 01:38:02,442 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory is still 122.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 01:38:02,443 INFO L168 Benchmark]: CACSL2BoogieTranslator took 271.52 ms. Allocated memory is still 151.0 MB. Free memory was 126.2 MB in the beginning and 116.1 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-12-23 01:38:02,444 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.34 ms. Allocated memory is still 151.0 MB. Free memory was 116.0 MB in the beginning and 114.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 01:38:02,444 INFO L168 Benchmark]: Boogie Preprocessor took 52.80 ms. Allocated memory is still 151.0 MB. Free memory was 114.6 MB in the beginning and 113.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-23 01:38:02,445 INFO L168 Benchmark]: RCFGBuilder took 371.82 ms. Allocated memory is still 151.0 MB. Free memory was 113.3 MB in the beginning and 100.8 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2020-12-23 01:38:02,445 INFO L168 Benchmark]: TraceAbstraction took 5446.93 ms. Allocated memory was 151.0 MB in the beginning and 202.4 MB in the end (delta: 51.4 MB). Free memory was 100.4 MB in the beginning and 105.0 MB in the end (delta: -4.6 MB). Peak memory consumption was 47.9 MB. Max. memory is 8.0 GB. [2020-12-23 01:38:02,446 INFO L168 Benchmark]: Witness Printer took 69.90 ms. Allocated memory is still 202.4 MB. Free memory was 105.0 MB in the beginning and 102.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-23 01:38:02,449 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 122.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 271.52 ms. Allocated memory is still 151.0 MB. Free memory was 126.2 MB in the beginning and 116.1 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 44.34 ms. Allocated memory is still 151.0 MB. Free memory was 116.0 MB in the beginning and 114.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 52.80 ms. Allocated memory is still 151.0 MB. Free memory was 114.6 MB in the beginning and 113.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 371.82 ms. Allocated memory is still 151.0 MB. Free memory was 113.3 MB in the beginning and 100.8 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5446.93 ms. Allocated memory was 151.0 MB in the beginning and 202.4 MB in the end (delta: 51.4 MB). Free memory was 100.4 MB in the beginning and 105.0 MB in the end (delta: -4.6 MB). Peak memory consumption was 47.9 MB. Max. memory is 8.0 GB. * Witness Printer took 69.90 ms. Allocated memory is still 202.4 MB. Free memory was 105.0 MB in the beginning and 102.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 21]: 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 1 specifications checked. All of them hold - InvariantResult [Line: 44]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: (0 < d % 4294967296 && (cond == 0 || cond == 1)) && n == m - InvariantResult [Line: 48]: Loop Invariant Derived loop invariant: (0 < d % 4294967296 && (cond == 0 || cond == 1)) && d % 4294967296 < 4294967295 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.1s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 62 SDtfs, 100 SDslu, 61 SDs, 0 SdLazy, 161 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 79 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 10 NumberOfFragments, 36 HoareAnnotationTreeSize, 4 FomulaSimplifications, 22 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 35 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 71 NumberOfCodeBlocks, 71 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 65 ConstructedInterpolants, 0 QuantifiedInterpolants, 3917 SizeOfPredicates, 30 NumberOfNonLiveVariables, 272 ConjunctsInSsa, 84 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 3/5 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...