/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/loops/matrix-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 04:20:18,482 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 04:20:18,485 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 04:20:18,525 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 04:20:18,526 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 04:20:18,527 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 04:20:18,529 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 04:20:18,532 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 04:20:18,535 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 04:20:18,536 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 04:20:18,538 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 04:20:18,539 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 04:20:18,540 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 04:20:18,541 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 04:20:18,543 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 04:20:18,545 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 04:20:18,546 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 04:20:18,547 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 04:20:18,549 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 04:20:18,552 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 04:20:18,554 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 04:20:18,556 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 04:20:18,567 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 04:20:18,569 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 04:20:18,578 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 04:20:18,595 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 04:20:18,596 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 04:20:18,598 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 04:20:18,599 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 04:20:18,660 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 04:20:18,660 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 04:20:18,666 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 04:20:18,666 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 04:20:18,666 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 04:20:18,666 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 04:20:18,667 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 04:20:18,667 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 04:20:18,667 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 04:20:18,667 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 04:20:18,669 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 04:20:18,669 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 04:20:18,669 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 04:20:18,669 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 04:20:18,670 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 04:20:18,670 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 04:20:18,670 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 04:20:18,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 04:20:18,670 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 04:20:18,671 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 04:20:18,671 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 04:20:18,671 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 04:20:18,671 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 04:20:18,671 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 04:20:18,672 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 04:20:18,672 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 04:20:19,080 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 04:20:19,114 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 04:20:19,118 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 04:20:19,119 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 04:20:19,124 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 04:20:19,125 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/matrix-1.c [2020-12-22 04:20:19,220 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d12d15fb3/fd044e9dce604532adbd5588796a4653/FLAG1d76041ec [2020-12-22 04:20:19,890 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 04:20:19,893 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/matrix-1.c [2020-12-22 04:20:19,901 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d12d15fb3/fd044e9dce604532adbd5588796a4653/FLAG1d76041ec [2020-12-22 04:20:20,223 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d12d15fb3/fd044e9dce604532adbd5588796a4653 [2020-12-22 04:20:20,226 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 04:20:20,229 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 04:20:20,232 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 04:20:20,232 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 04:20:20,236 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 04:20:20,238 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:20:20" (1/1) ... [2020-12-22 04:20:20,241 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e926432 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:20:20, skipping insertion in model container [2020-12-22 04:20:20,241 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:20:20" (1/1) ... [2020-12-22 04:20:20,250 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 04:20:20,270 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 04:20:20,419 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/matrix-1.c[320,333] [2020-12-22 04:20:20,439 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 04:20:20,450 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 04:20:20,466 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/matrix-1.c[320,333] [2020-12-22 04:20:20,475 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 04:20:20,494 INFO L208 MainTranslator]: Completed translation [2020-12-22 04:20:20,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:20:20 WrapperNode [2020-12-22 04:20:20,495 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 04:20:20,497 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 04:20:20,497 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 04:20:20,497 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 04:20:20,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:20:20" (1/1) ... [2020-12-22 04:20:20,517 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:20:20" (1/1) ... [2020-12-22 04:20:20,543 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 04:20:20,545 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 04:20:20,545 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 04:20:20,545 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 04:20:20,556 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:20:20" (1/1) ... [2020-12-22 04:20:20,557 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:20:20" (1/1) ... [2020-12-22 04:20:20,559 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:20:20" (1/1) ... [2020-12-22 04:20:20,559 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:20:20" (1/1) ... [2020-12-22 04:20:20,565 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:20:20" (1/1) ... [2020-12-22 04:20:20,570 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:20:20" (1/1) ... [2020-12-22 04:20:20,571 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:20:20" (1/1) ... [2020-12-22 04:20:20,574 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 04:20:20,575 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 04:20:20,575 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 04:20:20,575 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 04:20:20,576 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:20:20" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 04:20:20,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 04:20:20,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 04:20:20,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 04:20:20,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 04:20:20,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 04:20:20,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 04:20:20,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 04:20:21,046 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 04:20:21,047 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-22 04:20:21,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:20:21 BoogieIcfgContainer [2020-12-22 04:20:21,051 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 04:20:21,057 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 04:20:21,057 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 04:20:21,065 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 04:20:21,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 04:20:20" (1/3) ... [2020-12-22 04:20:21,070 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38439c34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:20:21, skipping insertion in model container [2020-12-22 04:20:21,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:20:20" (2/3) ... [2020-12-22 04:20:21,073 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38439c34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:20:21, skipping insertion in model container [2020-12-22 04:20:21,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:20:21" (3/3) ... [2020-12-22 04:20:21,079 INFO L111 eAbstractionObserver]: Analyzing ICFG matrix-1.c [2020-12-22 04:20:21,095 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 04:20:21,110 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-22 04:20:21,169 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-22 04:20:21,212 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 04:20:21,212 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 04:20:21,212 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 04:20:21,213 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 04:20:21,213 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 04:20:21,213 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 04:20:21,213 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 04:20:21,213 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 04:20:21,231 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2020-12-22 04:20:21,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-22 04:20:21,238 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:20:21,239 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-22 04:20:21,239 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:20:21,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:20:21,247 INFO L82 PathProgramCache]: Analyzing trace with hash 889621918, now seen corresponding path program 1 times [2020-12-22 04:20:21,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:20:21,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577079101] [2020-12-22 04:20:21,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:20:21,375 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 04:20:21,376 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [989067722] [2020-12-22 04:20:21,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 04:20:21,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:20:21,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-22 04:20:21,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 04:20:21,610 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 04:20:21,611 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577079101] [2020-12-22 04:20:21,611 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 04:20:21,612 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [989067722] [2020-12-22 04:20:21,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 04:20:21,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 04:20:21,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555244343] [2020-12-22 04:20:21,620 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 04:20:21,620 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:20:21,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 04:20:21,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 04:20:21,639 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 3 states. [2020-12-22 04:20:21,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:20:21,697 INFO L93 Difference]: Finished difference Result 33 states and 48 transitions. [2020-12-22 04:20:21,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 04:20:21,701 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-12-22 04:20:21,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:20:21,713 INFO L225 Difference]: With dead ends: 33 [2020-12-22 04:20:21,713 INFO L226 Difference]: Without dead ends: 16 [2020-12-22 04:20:21,716 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 04:20:21,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-12-22 04:20:21,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 12. [2020-12-22 04:20:21,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-12-22 04:20:21,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2020-12-22 04:20:21,758 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 6 [2020-12-22 04:20:21,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:20:21,759 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2020-12-22 04:20:21,759 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 04:20:21,759 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2020-12-22 04:20:21,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-22 04:20:21,760 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:20:21,760 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:20:21,973 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2020-12-22 04:20:21,974 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:20:21,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:20:21,977 INFO L82 PathProgramCache]: Analyzing trace with hash -235638193, now seen corresponding path program 1 times [2020-12-22 04:20:21,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:20:21,978 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948996880] [2020-12-22 04:20:21,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:20:21,996 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 04:20:21,997 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1219166502] [2020-12-22 04:20:21,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 04:20:22,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:20:22,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-22 04:20:22,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 04:20:22,097 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 04:20:22,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948996880] [2020-12-22 04:20:22,098 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 04:20:22,098 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1219166502] [2020-12-22 04:20:22,098 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 04:20:22,098 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 04:20:22,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137733132] [2020-12-22 04:20:22,100 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 04:20:22,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:20:22,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 04:20:22,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 04:20:22,102 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand 4 states. [2020-12-22 04:20:22,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:20:22,147 INFO L93 Difference]: Finished difference Result 28 states and 36 transitions. [2020-12-22 04:20:22,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 04:20:22,148 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-12-22 04:20:22,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:20:22,149 INFO L225 Difference]: With dead ends: 28 [2020-12-22 04:20:22,149 INFO L226 Difference]: Without dead ends: 19 [2020-12-22 04:20:22,150 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 04:20:22,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-12-22 04:20:22,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 13. [2020-12-22 04:20:22,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-12-22 04:20:22,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2020-12-22 04:20:22,155 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 9 [2020-12-22 04:20:22,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:20:22,155 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2020-12-22 04:20:22,155 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 04:20:22,156 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2020-12-22 04:20:22,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-22 04:20:22,156 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:20:22,156 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:20:22,364 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 04:20:22,365 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:20:22,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:20:22,367 INFO L82 PathProgramCache]: Analyzing trace with hash -589728809, now seen corresponding path program 1 times [2020-12-22 04:20:22,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:20:22,368 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313354927] [2020-12-22 04:20:22,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:20:22,385 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 04:20:22,386 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1149679045] [2020-12-22 04:20:22,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 04:20:22,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:20:22,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-22 04:20:22,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 04:20:22,546 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2020-12-22 04:20:22,547 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 04:20:22,562 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:20:22,565 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 04:20:22,566 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:40, output treesize:14 [2020-12-22 04:20:22,766 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 04:20:22,778 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 04:20:22,794 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 04:20:22,827 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 04:20:22,828 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313354927] [2020-12-22 04:20:22,828 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 04:20:22,828 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1149679045] [2020-12-22 04:20:22,828 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-22 04:20:22,829 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-12-22 04:20:22,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789702781] [2020-12-22 04:20:22,830 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 04:20:22,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:20:22,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 04:20:22,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-22 04:20:22,835 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand 6 states. [2020-12-22 04:20:23,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:20:23,026 INFO L93 Difference]: Finished difference Result 27 states and 33 transitions. [2020-12-22 04:20:23,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 04:20:23,027 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2020-12-22 04:20:23,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:20:23,028 INFO L225 Difference]: With dead ends: 27 [2020-12-22 04:20:23,028 INFO L226 Difference]: Without dead ends: 23 [2020-12-22 04:20:23,029 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-12-22 04:20:23,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-12-22 04:20:23,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2020-12-22 04:20:23,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-12-22 04:20:23,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 27 transitions. [2020-12-22 04:20:23,036 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 27 transitions. Word has length 12 [2020-12-22 04:20:23,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:20:23,037 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 27 transitions. [2020-12-22 04:20:23,037 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 04:20:23,037 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2020-12-22 04:20:23,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-22 04:20:23,038 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:20:23,038 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:20:23,252 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 04:20:23,253 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:20:23,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:20:23,255 INFO L82 PathProgramCache]: Analyzing trace with hash -1399075435, now seen corresponding path program 1 times [2020-12-22 04:20:23,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:20:23,256 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564798248] [2020-12-22 04:20:23,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:20:23,267 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 04:20:23,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2091894283] [2020-12-22 04:20:23,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 04:20:23,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:20:23,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-22 04:20:23,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 04:20:23,375 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2020-12-22 04:20:23,376 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 04:20:23,387 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:20:23,393 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 04:20:23,393 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:37, output treesize:20 [2020-12-22 04:20:23,560 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 04:20:23,565 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 04:20:23,574 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 04:20:23,591 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 04:20:23,591 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564798248] [2020-12-22 04:20:23,592 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 04:20:23,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2091894283] [2020-12-22 04:20:23,592 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-22 04:20:23,592 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-12-22 04:20:23,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494500659] [2020-12-22 04:20:23,593 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 04:20:23,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:20:23,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 04:20:23,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 04:20:23,595 INFO L87 Difference]: Start difference. First operand 21 states and 27 transitions. Second operand 6 states. [2020-12-22 04:20:23,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:20:23,811 INFO L93 Difference]: Finished difference Result 30 states and 37 transitions. [2020-12-22 04:20:23,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 04:20:23,812 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2020-12-22 04:20:23,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:20:23,813 INFO L225 Difference]: With dead ends: 30 [2020-12-22 04:20:23,813 INFO L226 Difference]: Without dead ends: 26 [2020-12-22 04:20:23,814 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-12-22 04:20:23,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-12-22 04:20:23,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 19. [2020-12-22 04:20:23,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-12-22 04:20:23,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2020-12-22 04:20:23,820 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 24 transitions. Word has length 12 [2020-12-22 04:20:23,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:20:23,821 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 24 transitions. [2020-12-22 04:20:23,821 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 04:20:23,821 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2020-12-22 04:20:23,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-22 04:20:23,822 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:20:23,822 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2020-12-22 04:20:24,036 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 04:20:24,037 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:20:24,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:20:24,040 INFO L82 PathProgramCache]: Analyzing trace with hash 2141915984, now seen corresponding path program 2 times [2020-12-22 04:20:24,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:20:24,041 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007723467] [2020-12-22 04:20:24,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:20:24,053 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 04:20:24,053 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2144294788] [2020-12-22 04:20:24,054 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 04:20:24,119 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-22 04:20:24,119 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 04:20:24,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-22 04:20:24,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 04:20:24,170 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-22 04:20:24,171 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007723467] [2020-12-22 04:20:24,171 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 04:20:24,174 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2144294788] [2020-12-22 04:20:24,178 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-22 04:20:24,178 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-12-22 04:20:24,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415085753] [2020-12-22 04:20:24,180 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 04:20:24,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:20:24,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 04:20:24,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 04:20:24,189 INFO L87 Difference]: Start difference. First operand 19 states and 24 transitions. Second operand 4 states. [2020-12-22 04:20:24,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:20:24,214 INFO L93 Difference]: Finished difference Result 21 states and 26 transitions. [2020-12-22 04:20:24,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 04:20:24,216 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-12-22 04:20:24,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:20:24,216 INFO L225 Difference]: With dead ends: 21 [2020-12-22 04:20:24,217 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 04:20:24,218 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 04:20:24,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 04:20:24,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 04:20:24,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 04:20:24,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 04:20:24,222 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-12-22 04:20:24,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:20:24,223 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 04:20:24,223 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 04:20:24,225 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 04:20:24,225 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 04:20:24,440 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 04:20:24,444 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-22 04:20:24,626 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-22 04:20:24,627 INFO L189 CegarLoopUtils]: For program point L21-2(lines 21 28) no Hoare annotation was computed. [2020-12-22 04:20:24,627 INFO L185 CegarLoopUtils]: At program point L21-3(lines 21 28) the Hoare annotation is: (let ((.cse0 (= 1 ULTIMATE.start_main_~N_COL~0))) (or (and .cse0 (= 1 ULTIMATE.start_main_~N_LIN~0) (= ULTIMATE.start_main_~j~0 0)) (and (exists ((aux_mod_ULTIMATE.start_main_~k~0_41 Int)) (and (<= (select (select |#memory_int| |ULTIMATE.start_main_~#matriz~0.base|) (+ |ULTIMATE.start_main_~#matriz~0.offset| (* (mod aux_mod_ULTIMATE.start_main_~k~0_41 4294967296) 4))) ULTIMATE.start_main_~maior~0) (< aux_mod_ULTIMATE.start_main_~k~0_41 1) (<= 0 aux_mod_ULTIMATE.start_main_~k~0_41))) .cse0 (= ULTIMATE.start_main_~j~0 1)))) [2020-12-22 04:20:24,627 INFO L189 CegarLoopUtils]: For program point L21-4(lines 21 28) no Hoare annotation was computed. [2020-12-22 04:20:24,627 INFO L189 CegarLoopUtils]: For program point L7(line 7) no Hoare annotation was computed. [2020-12-22 04:20:24,628 INFO L192 CegarLoopUtils]: At program point L32(lines 13 33) the Hoare annotation is: true [2020-12-22 04:20:24,628 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-22 04:20:24,628 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-22 04:20:24,628 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-22 04:20:24,628 INFO L189 CegarLoopUtils]: For program point L26(lines 26 27) no Hoare annotation was computed. [2020-12-22 04:20:24,628 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 7) no Hoare annotation was computed. [2020-12-22 04:20:24,629 INFO L189 CegarLoopUtils]: For program point L22-2(lines 22 28) no Hoare annotation was computed. [2020-12-22 04:20:24,629 INFO L185 CegarLoopUtils]: At program point L22-3(lines 22 28) the Hoare annotation is: (let ((.cse0 (= 1 ULTIMATE.start_main_~N_COL~0)) (.cse1 (= 1 ULTIMATE.start_main_~N_LIN~0)) (.cse2 (= ULTIMATE.start_main_~j~0 0))) (or (and (= ULTIMATE.start_main_~k~0 0) .cse0 .cse1 .cse2) (and (exists ((aux_mod_ULTIMATE.start_main_~k~0_41 Int)) (and (<= (select (select |#memory_int| |ULTIMATE.start_main_~#matriz~0.base|) (+ |ULTIMATE.start_main_~#matriz~0.offset| (* (mod aux_mod_ULTIMATE.start_main_~k~0_41 4294967296) 4))) ULTIMATE.start_main_~maior~0) (< aux_mod_ULTIMATE.start_main_~k~0_41 1) (<= 0 aux_mod_ULTIMATE.start_main_~k~0_41))) .cse0 .cse1 .cse2))) [2020-12-22 04:20:24,629 INFO L189 CegarLoopUtils]: For program point L6(lines 6 8) no Hoare annotation was computed. [2020-12-22 04:20:24,629 INFO L192 CegarLoopUtils]: At program point L6-2(lines 5 10) the Hoare annotation is: true [2020-12-22 04:20:24,643 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] [2020-12-22 04:20:24,645 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] [2020-12-22 04:20:24,645 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] [2020-12-22 04:20:24,653 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] [2020-12-22 04:20:24,653 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] [2020-12-22 04:20:24,653 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] [2020-12-22 04:20:24,655 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] [2020-12-22 04:20:24,655 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] [2020-12-22 04:20:24,656 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] [2020-12-22 04:20:24,657 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] [2020-12-22 04:20:24,657 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] [2020-12-22 04:20:24,657 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] [2020-12-22 04:20:24,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 04:20:24 BoogieIcfgContainer [2020-12-22 04:20:24,660 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 04:20:24,661 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 04:20:24,661 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 04:20:24,661 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 04:20:24,662 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:20:21" (3/4) ... [2020-12-22 04:20:24,666 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 04:20:24,680 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-12-22 04:20:24,681 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-22 04:20:24,681 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 04:20:24,681 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 04:20:24,717 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((1 == N_COL && 1 == N_LIN) && j == 0) || (((\exists aux_mod_ULTIMATE.start_main_~k~0_41 : int :: (unknown-#memory_int-unknown[matriz][matriz + aux_mod_ULTIMATE.start_main_~k~0_41 % 4294967296 * 4] <= maior && aux_mod_ULTIMATE.start_main_~k~0_41 < 1) && 0 <= aux_mod_ULTIMATE.start_main_~k~0_41) && 1 == N_COL) && j == 1) [2020-12-22 04:20:24,718 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((k == 0 && 1 == N_COL) && 1 == N_LIN) && j == 0) || ((((\exists aux_mod_ULTIMATE.start_main_~k~0_41 : int :: (unknown-#memory_int-unknown[matriz][matriz + aux_mod_ULTIMATE.start_main_~k~0_41 % 4294967296 * 4] <= maior && aux_mod_ULTIMATE.start_main_~k~0_41 < 1) && 0 <= aux_mod_ULTIMATE.start_main_~k~0_41) && 1 == N_COL) && 1 == N_LIN) && j == 0) [2020-12-22 04:20:24,741 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/loops/matrix-1.c-witness.graphml [2020-12-22 04:20:24,742 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 04:20:24,743 INFO L168 Benchmark]: Toolchain (without parser) took 4514.23 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 124.6 MB in the beginning and 99.6 MB in the end (delta: 25.0 MB). Peak memory consumption was 55.9 MB. Max. memory is 8.0 GB. [2020-12-22 04:20:24,744 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 151.0 MB. Free memory was 124.3 MB in the beginning and 123.9 MB in the end (delta: 436.7 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 04:20:24,745 INFO L168 Benchmark]: CACSL2BoogieTranslator took 264.19 ms. Allocated memory is still 151.0 MB. Free memory was 124.6 MB in the beginning and 114.4 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-12-22 04:20:24,745 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.78 ms. Allocated memory is still 151.0 MB. Free memory was 114.4 MB in the beginning and 112.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 04:20:24,746 INFO L168 Benchmark]: Boogie Preprocessor took 29.40 ms. Allocated memory is still 151.0 MB. Free memory was 112.8 MB in the beginning and 111.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 04:20:24,747 INFO L168 Benchmark]: RCFGBuilder took 476.84 ms. Allocated memory is still 151.0 MB. Free memory was 111.8 MB in the beginning and 98.4 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2020-12-22 04:20:24,748 INFO L168 Benchmark]: TraceAbstraction took 3603.44 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 97.9 MB in the beginning and 102.3 MB in the end (delta: -4.4 MB). Peak memory consumption was 27.6 MB. Max. memory is 8.0 GB. [2020-12-22 04:20:24,749 INFO L168 Benchmark]: Witness Printer took 81.13 ms. Allocated memory is still 181.4 MB. Free memory was 102.3 MB in the beginning and 99.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 04:20:24,752 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 151.0 MB. Free memory was 124.3 MB in the beginning and 123.9 MB in the end (delta: 436.7 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 264.19 ms. Allocated memory is still 151.0 MB. Free memory was 124.6 MB in the beginning and 114.4 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 46.78 ms. Allocated memory is still 151.0 MB. Free memory was 114.4 MB in the beginning and 112.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 29.40 ms. Allocated memory is still 151.0 MB. Free memory was 112.8 MB in the beginning and 111.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 476.84 ms. Allocated memory is still 151.0 MB. Free memory was 111.8 MB in the beginning and 98.4 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3603.44 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 97.9 MB in the beginning and 102.3 MB in the end (delta: -4.4 MB). Peak memory consumption was 27.6 MB. Max. memory is 8.0 GB. * Witness Printer took 81.13 ms. Allocated memory is still 181.4 MB. Free memory was 102.3 MB in the beginning and 99.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 7]: 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: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 21]: Loop Invariant [2020-12-22 04:20:24,761 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] [2020-12-22 04:20:24,762 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] [2020-12-22 04:20:24,762 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] [2020-12-22 04:20:24,763 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] [2020-12-22 04:20:24,763 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] [2020-12-22 04:20:24,763 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] Derived loop invariant: ((1 == N_COL && 1 == N_LIN) && j == 0) || (((\exists aux_mod_ULTIMATE.start_main_~k~0_41 : int :: (unknown-#memory_int-unknown[matriz][matriz + aux_mod_ULTIMATE.start_main_~k~0_41 % 4294967296 * 4] <= maior && aux_mod_ULTIMATE.start_main_~k~0_41 < 1) && 0 <= aux_mod_ULTIMATE.start_main_~k~0_41) && 1 == N_COL) && j == 1) - InvariantResult [Line: 22]: Loop Invariant [2020-12-22 04:20:24,764 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] [2020-12-22 04:20:24,764 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] [2020-12-22 04:20:24,764 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] [2020-12-22 04:20:24,765 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] [2020-12-22 04:20:24,765 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] [2020-12-22 04:20:24,765 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] Derived loop invariant: (((k == 0 && 1 == N_COL) && 1 == N_LIN) && j == 0) || ((((\exists aux_mod_ULTIMATE.start_main_~k~0_41 : int :: (unknown-#memory_int-unknown[matriz][matriz + aux_mod_ULTIMATE.start_main_~k~0_41 % 4294967296 * 4] <= maior && aux_mod_ULTIMATE.start_main_~k~0_41 < 1) && 0 <= aux_mod_ULTIMATE.start_main_~k~0_41) && 1 == N_COL) && 1 == N_LIN) && j == 0) - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.2s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 40 SDtfs, 34 SDslu, 59 SDs, 0 SdLazy, 127 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=3, 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, 5 MinimizatonAttempts, 19 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 10 NumberOfFragments, 86 HoareAnnotationTreeSize, 4 FomulaSimplifications, 6 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 63 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 52 ConstructedInterpolants, 11 QuantifiedInterpolants, 4411 SizeOfPredicates, 24 NumberOfNonLiveVariables, 367 ConjunctsInSsa, 52 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 12/17 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...