/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/nla-digbench-scaling/cohendiv-ll_valuebound2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 05:02:45,171 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 05:02:45,176 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 05:02:45,235 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 05:02:45,236 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 05:02:45,240 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 05:02:45,243 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 05:02:45,251 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 05:02:45,254 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 05:02:45,260 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 05:02:45,283 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 05:02:45,285 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 05:02:45,285 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 05:02:45,298 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 05:02:45,299 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 05:02:45,301 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 05:02:45,302 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 05:02:45,306 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 05:02:45,311 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 05:02:45,316 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 05:02:45,319 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 05:02:45,321 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 05:02:45,322 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 05:02:45,323 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 05:02:45,326 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 05:02:45,329 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 05:02:45,330 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 05:02:45,331 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 05:02:45,332 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 05:02:45,333 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 05:02:45,333 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 05:02:45,334 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 05:02:45,334 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 05:02:45,334 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 05:02:45,335 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 05:02:45,336 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 05:02:45,337 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 05:02:45,362 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 05:02:45,363 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 05:02:45,364 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 05:02:45,364 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 05:02:45,364 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 05:02:45,365 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 05:02:45,365 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 05:02:45,365 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 05:02:45,365 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 05:02:45,365 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 05:02:45,366 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 05:02:45,366 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 05:02:45,366 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 05:02:45,366 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 05:02:45,366 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 05:02:45,367 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 05:02:45,367 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 05:02:45,367 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 05:02:45,367 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 05:02:45,367 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 05:02:45,368 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 05:02:45,368 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 05:02:45,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 05:02:45,368 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 05:02:45,368 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 05:02:45,369 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 05:02:45,772 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 05:02:45,801 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 05:02:45,805 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 05:02:45,806 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 05:02:45,807 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 05:02:45,808 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound2.c [2020-12-22 05:02:45,888 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/813b89b84/36f9313969c342b8ad0d4b07b910e0df/FLAG39fbd628f [2020-12-22 05:02:46,399 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 05:02:46,399 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound2.c [2020-12-22 05:02:46,407 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/813b89b84/36f9313969c342b8ad0d4b07b910e0df/FLAG39fbd628f [2020-12-22 05:02:46,781 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/813b89b84/36f9313969c342b8ad0d4b07b910e0df [2020-12-22 05:02:46,792 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 05:02:46,795 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 05:02:46,799 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 05:02:46,800 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 05:02:46,804 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 05:02:46,805 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 05:02:46" (1/1) ... [2020-12-22 05:02:46,807 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bdca40f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:02:46, skipping insertion in model container [2020-12-22 05:02:46,808 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 05:02:46" (1/1) ... [2020-12-22 05:02:46,817 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 05:02:46,840 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 05:02:47,070 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/nla-digbench-scaling/cohendiv-ll_valuebound2.c[576,589] [2020-12-22 05:02:47,098 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 05:02:47,109 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 05:02:47,125 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/nla-digbench-scaling/cohendiv-ll_valuebound2.c[576,589] [2020-12-22 05:02:47,150 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 05:02:47,167 INFO L208 MainTranslator]: Completed translation [2020-12-22 05:02:47,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:02:47 WrapperNode [2020-12-22 05:02:47,168 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 05:02:47,171 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 05:02:47,171 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 05:02:47,171 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 05:02:47,179 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:02:47" (1/1) ... [2020-12-22 05:02:47,188 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:02:47" (1/1) ... [2020-12-22 05:02:47,225 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 05:02:47,231 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 05:02:47,231 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 05:02:47,231 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 05:02:47,241 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:02:47" (1/1) ... [2020-12-22 05:02:47,242 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:02:47" (1/1) ... [2020-12-22 05:02:47,253 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:02:47" (1/1) ... [2020-12-22 05:02:47,254 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:02:47" (1/1) ... [2020-12-22 05:02:47,264 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:02:47" (1/1) ... [2020-12-22 05:02:47,274 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:02:47" (1/1) ... [2020-12-22 05:02:47,275 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:02:47" (1/1) ... [2020-12-22 05:02:47,277 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 05:02:47,279 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 05:02:47,279 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 05:02:47,285 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 05:02:47,286 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:02:47" (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 05:02:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 05:02:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 05:02:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 05:02:47,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 05:02:47,775 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 05:02:47,775 INFO L299 CfgBuilder]: Removed 26 assume(true) statements. [2020-12-22 05:02:47,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:02:47 BoogieIcfgContainer [2020-12-22 05:02:47,777 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 05:02:47,779 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 05:02:47,779 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 05:02:47,782 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 05:02:47,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 05:02:46" (1/3) ... [2020-12-22 05:02:47,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50e655e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 05:02:47, skipping insertion in model container [2020-12-22 05:02:47,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:02:47" (2/3) ... [2020-12-22 05:02:47,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50e655e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 05:02:47, skipping insertion in model container [2020-12-22 05:02:47,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:02:47" (3/3) ... [2020-12-22 05:02:47,786 INFO L111 eAbstractionObserver]: Analyzing ICFG cohendiv-ll_valuebound2.c [2020-12-22 05:02:47,793 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 05:02:47,801 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2020-12-22 05:02:47,831 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-12-22 05:02:47,858 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 05:02:47,858 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 05:02:47,858 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 05:02:47,858 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 05:02:47,858 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 05:02:47,859 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 05:02:47,859 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 05:02:47,859 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 05:02:47,875 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2020-12-22 05:02:47,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-22 05:02:47,881 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:02:47,882 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:02:47,882 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:02:47,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:02:47,889 INFO L82 PathProgramCache]: Analyzing trace with hash 330581779, now seen corresponding path program 1 times [2020-12-22 05:02:47,899 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:02:47,899 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828857402] [2020-12-22 05:02:47,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:02:48,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:02:48,062 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 05:02:48,063 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828857402] [2020-12-22 05:02:48,064 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:02:48,064 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 05:02:48,065 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011463942] [2020-12-22 05:02:48,070 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 05:02:48,070 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:02:48,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 05:02:48,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 05:02:48,089 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2020-12-22 05:02:48,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:02:48,113 INFO L93 Difference]: Finished difference Result 83 states and 112 transitions. [2020-12-22 05:02:48,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 05:02:48,114 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-12-22 05:02:48,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:02:48,124 INFO L225 Difference]: With dead ends: 83 [2020-12-22 05:02:48,124 INFO L226 Difference]: Without dead ends: 39 [2020-12-22 05:02:48,128 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 [2020-12-22 05:02:48,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-12-22 05:02:48,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-12-22 05:02:48,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-12-22 05:02:48,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 40 transitions. [2020-12-22 05:02:48,169 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 40 transitions. Word has length 11 [2020-12-22 05:02:48,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:02:48,170 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 40 transitions. [2020-12-22 05:02:48,170 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 05:02:48,170 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions. [2020-12-22 05:02:48,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-22 05:02:48,171 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:02:48,171 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:02:48,171 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 05:02:48,172 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:02:48,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:02:48,173 INFO L82 PathProgramCache]: Analyzing trace with hash -1507472743, now seen corresponding path program 1 times [2020-12-22 05:02:48,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:02:48,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008084665] [2020-12-22 05:02:48,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:02:48,198 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:02:48,199 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [578015701] [2020-12-22 05:02:48,199 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 05:02:48,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:02:48,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 25 conjunts are in the unsatisfiable core [2020-12-22 05:02:48,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:02:48,476 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 05:02:48,476 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008084665] [2020-12-22 05:02:48,477 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:02:48,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [578015701] [2020-12-22 05:02:48,477 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:02:48,478 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-22 05:02:48,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756205661] [2020-12-22 05:02:48,480 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 05:02:48,481 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:02:48,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 05:02:48,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-12-22 05:02:48,482 INFO L87 Difference]: Start difference. First operand 39 states and 40 transitions. Second operand 9 states. [2020-12-22 05:02:48,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:02:48,802 INFO L93 Difference]: Finished difference Result 52 states and 53 transitions. [2020-12-22 05:02:48,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 05:02:48,803 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 11 [2020-12-22 05:02:48,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:02:48,804 INFO L225 Difference]: With dead ends: 52 [2020-12-22 05:02:48,805 INFO L226 Difference]: Without dead ends: 50 [2020-12-22 05:02:48,806 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2020-12-22 05:02:48,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-12-22 05:02:48,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 41. [2020-12-22 05:02:48,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-12-22 05:02:48,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 42 transitions. [2020-12-22 05:02:48,815 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 42 transitions. Word has length 11 [2020-12-22 05:02:48,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:02:48,815 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 42 transitions. [2020-12-22 05:02:48,815 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 05:02:48,815 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions. [2020-12-22 05:02:48,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-22 05:02:48,816 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:02:48,816 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:02:49,030 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-12-22 05:02:49,031 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:02:49,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:02:49,032 INFO L82 PathProgramCache]: Analyzing trace with hash -1277171076, now seen corresponding path program 1 times [2020-12-22 05:02:49,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:02:49,033 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558900135] [2020-12-22 05:02:49,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:02:49,059 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:02:49,060 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1325977261] [2020-12-22 05:02:49,060 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 05:02:49,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:02:49,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 25 conjunts are in the unsatisfiable core [2020-12-22 05:02:49,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:02:49,330 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 05:02:49,331 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558900135] [2020-12-22 05:02:49,331 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:02:49,331 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1325977261] [2020-12-22 05:02:49,331 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:02:49,332 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 05:02:49,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501018982] [2020-12-22 05:02:49,332 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-22 05:02:49,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:02:49,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-22 05:02:49,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-12-22 05:02:49,334 INFO L87 Difference]: Start difference. First operand 41 states and 42 transitions. Second operand 10 states. [2020-12-22 05:02:49,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:02:49,727 INFO L93 Difference]: Finished difference Result 70 states and 72 transitions. [2020-12-22 05:02:49,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-22 05:02:49,728 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 13 [2020-12-22 05:02:49,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:02:49,729 INFO L225 Difference]: With dead ends: 70 [2020-12-22 05:02:49,729 INFO L226 Difference]: Without dead ends: 60 [2020-12-22 05:02:49,730 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=86, Invalid=154, Unknown=0, NotChecked=0, Total=240 [2020-12-22 05:02:49,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-12-22 05:02:49,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 53. [2020-12-22 05:02:49,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-12-22 05:02:49,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 57 transitions. [2020-12-22 05:02:49,740 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 57 transitions. Word has length 13 [2020-12-22 05:02:49,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:02:49,740 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 57 transitions. [2020-12-22 05:02:49,740 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-22 05:02:49,741 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 57 transitions. [2020-12-22 05:02:49,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-22 05:02:49,741 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:02:49,741 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:02:49,956 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:02:49,957 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:02:49,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:02:49,959 INFO L82 PathProgramCache]: Analyzing trace with hash 916732292, now seen corresponding path program 1 times [2020-12-22 05:02:49,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:02:49,960 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609533867] [2020-12-22 05:02:49,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:02:49,975 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:02:49,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [781947651] [2020-12-22 05:02:49,976 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 05:02:50,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:02:50,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 25 conjunts are in the unsatisfiable core [2020-12-22 05:02:50,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:02:50,159 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 05:02:50,160 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609533867] [2020-12-22 05:02:50,160 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:02:50,160 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [781947651] [2020-12-22 05:02:50,161 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:02:50,161 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-22 05:02:50,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591167370] [2020-12-22 05:02:50,162 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 05:02:50,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:02:50,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 05:02:50,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-12-22 05:02:50,164 INFO L87 Difference]: Start difference. First operand 53 states and 57 transitions. Second operand 9 states. [2020-12-22 05:02:50,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:02:50,473 INFO L93 Difference]: Finished difference Result 95 states and 103 transitions. [2020-12-22 05:02:50,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-22 05:02:50,474 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 16 [2020-12-22 05:02:50,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:02:50,475 INFO L225 Difference]: With dead ends: 95 [2020-12-22 05:02:50,475 INFO L226 Difference]: Without dead ends: 89 [2020-12-22 05:02:50,476 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2020-12-22 05:02:50,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-12-22 05:02:50,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 72. [2020-12-22 05:02:50,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-12-22 05:02:50,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 80 transitions. [2020-12-22 05:02:50,488 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 80 transitions. Word has length 16 [2020-12-22 05:02:50,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:02:50,488 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 80 transitions. [2020-12-22 05:02:50,488 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 05:02:50,488 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 80 transitions. [2020-12-22 05:02:50,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-22 05:02:50,489 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:02:50,489 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:02:50,703 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:02:50,704 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:02:50,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:02:50,705 INFO L82 PathProgramCache]: Analyzing trace with hash -1552659725, now seen corresponding path program 1 times [2020-12-22 05:02:50,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:02:50,707 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194455133] [2020-12-22 05:02:50,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:02:50,721 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:02:50,722 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [43728746] [2020-12-22 05:02:50,722 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 05:02:50,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:02:50,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 25 conjunts are in the unsatisfiable core [2020-12-22 05:02:50,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:02:51,010 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 05:02:51,016 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 05:02:51,018 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 05:02:51,024 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 05:02:51,048 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 05:02:51,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194455133] [2020-12-22 05:02:51,049 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:02:51,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [43728746] [2020-12-22 05:02:51,049 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-22 05:02:51,049 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-12-22 05:02:51,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394807111] [2020-12-22 05:02:51,050 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 05:02:51,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:02:51,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 05:02:51,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 05:02:51,051 INFO L87 Difference]: Start difference. First operand 72 states and 80 transitions. Second operand 11 states. [2020-12-22 05:02:51,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:02:51,778 INFO L93 Difference]: Finished difference Result 151 states and 166 transitions. [2020-12-22 05:02:51,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 05:02:51,779 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-12-22 05:02:51,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:02:51,780 INFO L225 Difference]: With dead ends: 151 [2020-12-22 05:02:51,780 INFO L226 Difference]: Without dead ends: 100 [2020-12-22 05:02:51,781 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2020-12-22 05:02:51,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-12-22 05:02:51,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 60. [2020-12-22 05:02:51,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-12-22 05:02:51,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 64 transitions. [2020-12-22 05:02:51,793 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 64 transitions. Word has length 25 [2020-12-22 05:02:51,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:02:51,793 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 64 transitions. [2020-12-22 05:02:51,794 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 05:02:51,794 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 64 transitions. [2020-12-22 05:02:51,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-22 05:02:51,795 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:02:51,795 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:02:52,009 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:02:52,010 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:02:52,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:02:52,011 INFO L82 PathProgramCache]: Analyzing trace with hash 1755069467, now seen corresponding path program 1 times [2020-12-22 05:02:52,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:02:52,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749490206] [2020-12-22 05:02:52,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:02:52,026 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:02:52,027 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [474450381] [2020-12-22 05:02:52,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:02:52,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:02:52,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 30 conjunts are in the unsatisfiable core [2020-12-22 05:02:52,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:02:52,397 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:02:52,402 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749490206] [2020-12-22 05:02:52,402 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:02:52,402 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [474450381] [2020-12-22 05:02:52,403 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-22 05:02:52,403 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-12-22 05:02:52,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026671917] [2020-12-22 05:02:52,403 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 05:02:52,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:02:52,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 05:02:52,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2020-12-22 05:02:52,407 INFO L87 Difference]: Start difference. First operand 60 states and 64 transitions. Second operand 11 states. [2020-12-22 05:02:52,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:02:52,968 INFO L93 Difference]: Finished difference Result 102 states and 111 transitions. [2020-12-22 05:02:52,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-12-22 05:02:52,968 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 26 [2020-12-22 05:02:52,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:02:52,969 INFO L225 Difference]: With dead ends: 102 [2020-12-22 05:02:52,969 INFO L226 Difference]: Without dead ends: 62 [2020-12-22 05:02:52,971 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=111, Invalid=231, Unknown=0, NotChecked=0, Total=342 [2020-12-22 05:02:52,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-12-22 05:02:52,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 60. [2020-12-22 05:02:52,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-12-22 05:02:52,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 63 transitions. [2020-12-22 05:02:52,995 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 63 transitions. Word has length 26 [2020-12-22 05:02:52,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:02:52,996 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 63 transitions. [2020-12-22 05:02:52,996 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 05:02:52,996 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 63 transitions. [2020-12-22 05:02:52,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-12-22 05:02:52,997 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:02:52,998 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:02:53,213 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-12-22 05:02:53,214 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:02:53,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:02:53,214 INFO L82 PathProgramCache]: Analyzing trace with hash -797667638, now seen corresponding path program 1 times [2020-12-22 05:02:53,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:02:53,215 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973237494] [2020-12-22 05:02:53,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:02:53,245 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:02:53,246 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1861063046] [2020-12-22 05:02:53,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:02:53,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:02:53,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 41 conjunts are in the unsatisfiable core [2020-12-22 05:02:53,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:02:53,696 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:02:53,696 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973237494] [2020-12-22 05:02:53,697 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:02:53,697 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1861063046] [2020-12-22 05:02:53,697 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-22 05:02:53,697 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-12-22 05:02:53,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212897575] [2020-12-22 05:02:53,698 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-12-22 05:02:53,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:02:53,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-12-22 05:02:53,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2020-12-22 05:02:53,699 INFO L87 Difference]: Start difference. First operand 60 states and 63 transitions. Second operand 13 states. [2020-12-22 05:02:54,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:02:54,306 INFO L93 Difference]: Finished difference Result 69 states and 74 transitions. [2020-12-22 05:02:54,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-12-22 05:02:54,307 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 35 [2020-12-22 05:02:54,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:02:54,308 INFO L225 Difference]: With dead ends: 69 [2020-12-22 05:02:54,308 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 05:02:54,309 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2020-12-22 05:02:54,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 05:02:54,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 05:02:54,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 05:02:54,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 05:02:54,309 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2020-12-22 05:02:54,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:02:54,310 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 05:02:54,310 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-12-22 05:02:54,310 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 05:02:54,310 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 05:02:54,525 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:02:54,529 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-22 05:02:54,940 WARN L197 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 51 [2020-12-22 05:02:55,065 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 28 [2020-12-22 05:02:55,203 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 27 [2020-12-22 05:02:55,433 WARN L197 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 51 [2020-12-22 05:02:55,583 WARN L197 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 28 [2020-12-22 05:02:55,875 WARN L197 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 53 [2020-12-22 05:02:56,022 WARN L197 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 27 [2020-12-22 05:02:56,024 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2020-12-22 05:02:56,024 INFO L189 CegarLoopUtils]: For program point L11(lines 11 13) no Hoare annotation was computed. [2020-12-22 05:02:56,024 INFO L189 CegarLoopUtils]: For program point L11-1(lines 11 13) no Hoare annotation was computed. [2020-12-22 05:02:56,024 INFO L189 CegarLoopUtils]: For program point L11-2(lines 11 13) no Hoare annotation was computed. [2020-12-22 05:02:56,025 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2020-12-22 05:02:56,025 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-22 05:02:56,025 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-22 05:02:56,025 INFO L189 CegarLoopUtils]: For program point L12(line 12) no Hoare annotation was computed. [2020-12-22 05:02:56,025 INFO L189 CegarLoopUtils]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-12-22 05:02:56,025 INFO L189 CegarLoopUtils]: For program point L12-4(line 12) no Hoare annotation was computed. [2020-12-22 05:02:56,025 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2020-12-22 05:02:56,026 INFO L185 CegarLoopUtils]: At program point L38-2(lines 38 62) the Hoare annotation is: (let ((.cse3 (<= 1 ULTIMATE.start_main_~y~0)) (.cse4 (<= ULTIMATE.start_main_~r~0 2)) (.cse5 (<= 0 ULTIMATE.start_main_~x~0))) (let ((.cse0 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse1 (let ((.cse6 (<= ULTIMATE.start_main_~x~0 2))) (or (and .cse3 .cse6 (= ULTIMATE.start_main_~a~0 1) .cse4 .cse5 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0)) (let ((.cse7 (div (* ULTIMATE.start_main_~b~0 (- 1)) (- 2)))) (and (<= ULTIMATE.start_main_~y~0 .cse7) (= 0 (mod ULTIMATE.start_main_~b~0 (- 2))) .cse3 .cse6 .cse4 (= ULTIMATE.start_main_~a~0 2) .cse5 (<= (* 2 .cse7) 2)))))) (.cse2 (= ULTIMATE.start_assume_abort_if_not_~cond 1))) (or (and (= ULTIMATE.start_main_~q~0 2) .cse0 .cse1 .cse2 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 (* ULTIMATE.start_main_~y~0 2))) (<= (* 2 ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~x~0)) (and .cse3 .cse4 .cse5 (= ULTIMATE.start_main_~a~0 0) (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~x~0) (= ULTIMATE.start_main_~q~0 0) .cse2 (<= ULTIMATE.start_main_~y~0 2) (= ULTIMATE.start_main_~b~0 0)) (and (= ULTIMATE.start_main_~q~0 1) (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~y~0)) .cse0 (<= ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~x~0) (< (* 2 ULTIMATE.start_main_~r~0) ULTIMATE.start_main_~x~0) .cse1 .cse2)))) [2020-12-22 05:02:56,026 INFO L189 CegarLoopUtils]: For program point L38-3(lines 38 62) no Hoare annotation was computed. [2020-12-22 05:02:56,026 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2020-12-22 05:02:56,026 INFO L185 CegarLoopUtils]: At program point L47-2(lines 47 59) the Hoare annotation is: (let ((.cse0 (<= 1 ULTIMATE.start_main_~y~0)) (.cse1 (<= ULTIMATE.start_main_~r~0 2)) (.cse2 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse3 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~x~0)) (.cse4 (= ULTIMATE.start_main_~q~0 0)) (.cse5 (= ULTIMATE.start_assume_abort_if_not_~cond 1))) (or (and .cse0 .cse1 .cse2 (= ULTIMATE.start_main_~a~0 2) .cse3 (= ULTIMATE.start_main_~b~0 (* ULTIMATE.start_main_~y~0 2)) .cse4 (<= (* 2 ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~r~0) .cse5) (and .cse0 (= ULTIMATE.start_main_~a~0 1) .cse1 .cse2 .cse3 .cse4 .cse5 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0) (<= ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~r~0)))) [2020-12-22 05:02:56,026 INFO L189 CegarLoopUtils]: For program point L47-3(lines 47 59) no Hoare annotation was computed. [2020-12-22 05:02:56,026 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2020-12-22 05:02:56,026 INFO L189 CegarLoopUtils]: For program point L15(lines 15 18) no Hoare annotation was computed. [2020-12-22 05:02:56,027 INFO L185 CegarLoopUtils]: At program point L15-2(lines 14 20) the Hoare annotation is: (let ((.cse2 (<= 1 ULTIMATE.start_main_~y~0)) (.cse3 (<= ULTIMATE.start_main_~r~0 2)) (.cse4 (<= 0 ULTIMATE.start_main_~x~0))) (let ((.cse1 (let ((.cse5 (<= ULTIMATE.start_main_~x~0 2))) (or (and (<= ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~b~0) .cse2 .cse5 (= ULTIMATE.start_main_~a~0 1) .cse3 .cse4) (let ((.cse6 (div (* ULTIMATE.start_main_~b~0 (- 1)) (- 2)))) (and (<= ULTIMATE.start_main_~y~0 .cse6) (= 0 (mod ULTIMATE.start_main_~b~0 (- 2))) .cse2 .cse5 .cse3 (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~a~0 2) .cse4 (<= (* 2 .cse6) 2)))))) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond 1))) (or (and (= ULTIMATE.start_main_~q~0 1) (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~y~0)) (<= ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~x~0) (< (* 2 ULTIMATE.start_main_~r~0) ULTIMATE.start_main_~x~0) .cse0 .cse1) (and (= ULTIMATE.start_main_~q~0 2) .cse0 .cse1 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 (* ULTIMATE.start_main_~y~0 2))) (<= (* 2 ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~x~0)) (and .cse2 .cse3 .cse4 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~x~0) (= ULTIMATE.start_main_~q~0 0) .cse0 (<= ULTIMATE.start_main_~y~0 2))))) [2020-12-22 05:02:56,027 INFO L189 CegarLoopUtils]: For program point L15-3(lines 15 18) no Hoare annotation was computed. [2020-12-22 05:02:56,027 INFO L185 CegarLoopUtils]: At program point L15-5(lines 42 43) the Hoare annotation is: (let ((.cse2 (<= 1 ULTIMATE.start_main_~y~0)) (.cse3 (<= ULTIMATE.start_main_~r~0 2)) (.cse4 (<= 0 ULTIMATE.start_main_~x~0)) (.cse5 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse6 (<= ULTIMATE.start_main_~y~0 2))) (let ((.cse0 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse1 (let ((.cse8 (<= ULTIMATE.start_main_~x~0 2))) (or (let ((.cse7 (div (* ULTIMATE.start_main_~b~0 (- 1)) (- 2)))) (and (<= ULTIMATE.start_main_~y~0 .cse7) (= 0 (mod ULTIMATE.start_main_~b~0 (- 2))) .cse2 .cse8 .cse3 (= ULTIMATE.start_main_~a~0 2) .cse4 .cse5 (<= (* 2 .cse7) 2))) (and (<= ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~b~0) .cse2 .cse8 (= ULTIMATE.start_main_~a~0 1) .cse3 .cse4 .cse5 .cse6))))) (or (and (= ULTIMATE.start_main_~q~0 2) .cse0 .cse1 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 (* ULTIMATE.start_main_~y~0 2))) (<= (* 2 ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~x~0)) (and .cse2 .cse3 .cse0 .cse4 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~x~0) (= ULTIMATE.start_main_~q~0 0) .cse5 .cse6) (and (= ULTIMATE.start_main_~q~0 1) (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~y~0)) .cse0 (<= ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~x~0) (< (* 2 ULTIMATE.start_main_~r~0) ULTIMATE.start_main_~x~0) .cse1)))) [2020-12-22 05:02:56,027 INFO L189 CegarLoopUtils]: For program point L15-6(lines 15 18) no Hoare annotation was computed. [2020-12-22 05:02:56,027 INFO L185 CegarLoopUtils]: At program point L15-8(lines 14 20) the Hoare annotation is: (let ((.cse0 (<= 1 ULTIMATE.start_main_~y~0)) (.cse1 (<= ULTIMATE.start_main_~r~0 2)) (.cse2 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse3 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~x~0)) (.cse4 (= ULTIMATE.start_main_~q~0 0)) (.cse5 (= ULTIMATE.start_assume_abort_if_not_~cond 1))) (or (and .cse0 .cse1 .cse2 (= ULTIMATE.start_main_~a~0 2) .cse3 (= ULTIMATE.start_main_~b~0 (* ULTIMATE.start_main_~y~0 2)) .cse4 (<= (* 2 ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~r~0) .cse5) (and .cse0 (= ULTIMATE.start_main_~a~0 1) .cse1 .cse2 .cse3 .cse4 .cse5 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0) (<= ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~r~0)))) [2020-12-22 05:02:56,028 INFO L189 CegarLoopUtils]: For program point L15-9(lines 15 18) no Hoare annotation was computed. [2020-12-22 05:02:56,028 INFO L185 CegarLoopUtils]: At program point L15-11(lines 14 20) the Hoare annotation is: (let ((.cse0 (<= 1 ULTIMATE.start_main_~y~0)) (.cse1 (<= ULTIMATE.start_main_~r~0 2)) (.cse2 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse3 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~x~0)) (.cse4 (= ULTIMATE.start_main_~q~0 0)) (.cse5 (= ULTIMATE.start_assume_abort_if_not_~cond 1))) (or (and .cse0 .cse1 .cse2 (= ULTIMATE.start_main_~a~0 2) .cse3 (= ULTIMATE.start_main_~b~0 (* ULTIMATE.start_main_~y~0 2)) .cse4 (<= (* 2 ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~r~0) .cse5) (and .cse0 (= ULTIMATE.start_main_~a~0 1) .cse1 .cse2 .cse3 .cse4 .cse5 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0) (<= ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~r~0)))) [2020-12-22 05:02:56,028 INFO L189 CegarLoopUtils]: For program point L15-12(lines 15 18) no Hoare annotation was computed. [2020-12-22 05:02:56,028 INFO L185 CegarLoopUtils]: At program point L15-14(lines 52 53) the Hoare annotation is: (let ((.cse0 (<= 1 ULTIMATE.start_main_~y~0)) (.cse1 (<= ULTIMATE.start_main_~r~0 2)) (.cse2 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse3 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~x~0)) (.cse4 (= ULTIMATE.start_main_~q~0 0)) (.cse5 (= ULTIMATE.start_assume_abort_if_not_~cond 1))) (or (and .cse0 .cse1 .cse2 (= ULTIMATE.start_main_~a~0 2) .cse3 (= ULTIMATE.start_main_~b~0 (* ULTIMATE.start_main_~y~0 2)) .cse4 (<= (* 2 ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~r~0) .cse5) (and .cse0 (= ULTIMATE.start_main_~a~0 1) .cse1 .cse2 .cse3 .cse4 .cse5 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0) (<= ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~r~0)))) [2020-12-22 05:02:56,028 INFO L192 CegarLoopUtils]: At program point L65(lines 22 66) the Hoare annotation is: true [2020-12-22 05:02:56,029 INFO L189 CegarLoopUtils]: For program point L15-15(lines 15 18) no Hoare annotation was computed. [2020-12-22 05:02:56,029 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-22 05:02:56,029 INFO L185 CegarLoopUtils]: At program point L15-17(lines 14 20) the Hoare annotation is: (and (<= 1 ULTIMATE.start_main_~y~0) (= ULTIMATE.start_main_~a~0 1) (<= ULTIMATE.start_main_~r~0 2) (<= (* 2 ULTIMATE.start_main_~b~0) ULTIMATE.start_main_~r~0) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~x~0) (= ULTIMATE.start_main_~q~0 0) (= ULTIMATE.start_assume_abort_if_not_~cond 1) (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0)) [2020-12-22 05:02:56,029 INFO L189 CegarLoopUtils]: For program point L15-18(lines 15 18) no Hoare annotation was computed. [2020-12-22 05:02:56,029 INFO L192 CegarLoopUtils]: At program point L15-20(lines 14 20) the Hoare annotation is: true [2020-12-22 05:02:56,029 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2020-12-22 05:02:56,029 INFO L189 CegarLoopUtils]: For program point L16(lines 16 17) no Hoare annotation was computed. [2020-12-22 05:02:56,029 INFO L189 CegarLoopUtils]: For program point L16-1(lines 16 17) no Hoare annotation was computed. [2020-12-22 05:02:56,030 INFO L189 CegarLoopUtils]: For program point L16-2(lines 16 17) no Hoare annotation was computed. [2020-12-22 05:02:56,030 INFO L189 CegarLoopUtils]: For program point L16-3(lines 16 17) no Hoare annotation was computed. [2020-12-22 05:02:56,030 INFO L189 CegarLoopUtils]: For program point L16-4(lines 16 17) no Hoare annotation was computed. [2020-12-22 05:02:56,030 INFO L189 CegarLoopUtils]: For program point L16-5(lines 16 17) no Hoare annotation was computed. [2020-12-22 05:02:56,030 INFO L189 CegarLoopUtils]: For program point L16-6(lines 16 17) no Hoare annotation was computed. [2020-12-22 05:02:56,030 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-22 05:02:56,030 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2020-12-22 05:02:56,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 05:02:56 BoogieIcfgContainer [2020-12-22 05:02:56,063 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 05:02:56,064 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 05:02:56,064 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 05:02:56,064 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 05:02:56,065 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:02:47" (3/4) ... [2020-12-22 05:02:56,068 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 05:02:56,081 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2020-12-22 05:02:56,081 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-22 05:02:56,081 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 05:02:56,082 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 05:02:56,149 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/nla-digbench-scaling/cohendiv-ll_valuebound2.c-witness.graphml [2020-12-22 05:02:56,149 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 05:02:56,151 INFO L168 Benchmark]: Toolchain (without parser) took 9355.59 ms. Allocated memory was 162.5 MB in the beginning and 195.0 MB in the end (delta: 32.5 MB). Free memory was 143.3 MB in the beginning and 93.8 MB in the end (delta: 49.5 MB). Peak memory consumption was 82.4 MB. Max. memory is 8.0 GB. [2020-12-22 05:02:56,151 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 162.5 MB. Free memory is still 134.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 05:02:56,152 INFO L168 Benchmark]: CACSL2BoogieTranslator took 369.09 ms. Allocated memory is still 162.5 MB. Free memory was 143.1 MB in the beginning and 133.1 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-12-22 05:02:56,152 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.85 ms. Allocated memory is still 162.5 MB. Free memory was 133.1 MB in the beginning and 131.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 05:02:56,153 INFO L168 Benchmark]: Boogie Preprocessor took 47.16 ms. Allocated memory is still 162.5 MB. Free memory was 131.6 MB in the beginning and 130.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 05:02:56,154 INFO L168 Benchmark]: RCFGBuilder took 498.44 ms. Allocated memory is still 162.5 MB. Free memory was 130.2 MB in the beginning and 129.6 MB in the end (delta: 596.1 kB). Peak memory consumption was 3.0 MB. Max. memory is 8.0 GB. [2020-12-22 05:02:56,154 INFO L168 Benchmark]: TraceAbstraction took 8284.56 ms. Allocated memory was 162.5 MB in the beginning and 195.0 MB in the end (delta: 32.5 MB). Free memory was 129.3 MB in the beginning and 98.0 MB in the end (delta: 31.3 MB). Peak memory consumption was 99.3 MB. Max. memory is 8.0 GB. [2020-12-22 05:02:56,155 INFO L168 Benchmark]: Witness Printer took 85.61 ms. Allocated memory is still 195.0 MB. Free memory was 98.0 MB in the beginning and 93.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-12-22 05:02:56,160 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 162.5 MB. Free memory is still 134.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 369.09 ms. Allocated memory is still 162.5 MB. Free memory was 143.1 MB in the beginning and 133.1 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 58.85 ms. Allocated memory is still 162.5 MB. Free memory was 133.1 MB in the beginning and 131.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 47.16 ms. Allocated memory is still 162.5 MB. Free memory was 131.6 MB in the beginning and 130.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 498.44 ms. Allocated memory is still 162.5 MB. Free memory was 130.2 MB in the beginning and 129.6 MB in the end (delta: 596.1 kB). Peak memory consumption was 3.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 8284.56 ms. Allocated memory was 162.5 MB in the beginning and 195.0 MB in the end (delta: 32.5 MB). Free memory was 129.3 MB in the beginning and 98.0 MB in the end (delta: 31.3 MB). Peak memory consumption was 99.3 MB. Max. memory is 8.0 GB. * Witness Printer took 85.61 ms. Allocated memory is still 195.0 MB. Free memory was 98.0 MB in the beginning and 93.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: 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 7 specifications checked. All of them hold - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: (((((q == 2 && 1 == cond) && (((((((((y <= b * -1 / -2 && 0 == b % -2) && 1 <= y) && x <= 2) && r <= 2) && a == 2) && 0 <= x) && cond == 1) && 2 * (b * -1 / -2) <= 2) || (((((((y <= b && 1 <= y) && x <= 2) && a == 1) && r <= 2) && 0 <= x) && cond == 1) && y <= 2))) && x == r + y * 2) && 2 * y <= x) || (((((((1 <= y && r <= 2) && 1 == cond) && 0 <= x) && r == x) && q == 0) && cond == 1) && y <= 2)) || (((((q == 1 && x == r + y) && 1 == cond) && y <= x) && 2 * r < x) && (((((((((y <= b * -1 / -2 && 0 == b % -2) && 1 <= y) && x <= 2) && r <= 2) && a == 2) && 0 <= x) && cond == 1) && 2 * (b * -1 / -2) <= 2) || (((((((y <= b && 1 <= y) && x <= 2) && a == 1) && r <= 2) && 0 <= x) && cond == 1) && y <= 2))) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: ((((((((1 <= y && r <= 2) && 1 == cond) && a == 2) && r == x) && b == y * 2) && q == 0) && 2 * y <= r) && cond == 1) || ((((((((1 <= y && a == 1) && r <= 2) && 1 == cond) && r == x) && q == 0) && cond == 1) && b == y) && y <= r) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: ((((((((1 <= y && r <= 2) && 1 == cond) && a == 2) && r == x) && b == y * 2) && q == 0) && 2 * y <= r) && cond == 1) || ((((((((1 <= y && a == 1) && r <= 2) && 1 == cond) && r == x) && q == 0) && cond == 1) && b == y) && y <= r) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: ((((((q == 1 && x == r + y) && y <= x) && 2 * r < x) && cond == 1) && ((((((y <= b && 1 <= y) && x <= 2) && a == 1) && r <= 2) && 0 <= x) || ((((((((y <= b * -1 / -2 && 0 == b % -2) && 1 <= y) && x <= 2) && r <= 2) && 1 == cond) && a == 2) && 0 <= x) && 2 * (b * -1 / -2) <= 2))) || ((((q == 2 && cond == 1) && ((((((y <= b && 1 <= y) && x <= 2) && a == 1) && r <= 2) && 0 <= x) || ((((((((y <= b * -1 / -2 && 0 == b % -2) && 1 <= y) && x <= 2) && r <= 2) && 1 == cond) && a == 2) && 0 <= x) && 2 * (b * -1 / -2) <= 2))) && x == r + y * 2) && 2 * y <= x)) || ((((((1 <= y && r <= 2) && 0 <= x) && r == x) && q == 0) && cond == 1) && y <= 2) - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: ((((((((1 <= y && r <= 2) && 1 == cond) && a == 2) && r == x) && b == y * 2) && q == 0) && 2 * y <= r) && cond == 1) || ((((((((1 <= y && a == 1) && r <= 2) && 1 == cond) && r == x) && q == 0) && cond == 1) && b == y) && y <= r) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (((((((1 <= y && a == 1) && r <= 2) && 2 * b <= r) && 1 == cond) && r == x) && q == 0) && cond == 1) && b == y - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: ((((((((1 <= y && r <= 2) && 1 == cond) && a == 2) && r == x) && b == y * 2) && q == 0) && 2 * y <= r) && cond == 1) || ((((((((1 <= y && a == 1) && r <= 2) && 1 == cond) && r == x) && q == 0) && cond == 1) && b == y) && y <= r) - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: ((((((q == 2 && 1 == cond) && ((((((1 <= y && x <= 2) && a == 1) && r <= 2) && 0 <= x) && b == y) || (((((((y <= b * -1 / -2 && 0 == b % -2) && 1 <= y) && x <= 2) && r <= 2) && a == 2) && 0 <= x) && 2 * (b * -1 / -2) <= 2))) && cond == 1) && x == r + y * 2) && 2 * y <= x) || ((((((((1 <= y && r <= 2) && 0 <= x) && a == 0) && r == x) && q == 0) && cond == 1) && y <= 2) && b == 0)) || ((((((q == 1 && x == r + y) && 1 == cond) && y <= x) && 2 * r < x) && ((((((1 <= y && x <= 2) && a == 1) && r <= 2) && 0 <= x) && b == y) || (((((((y <= b * -1 / -2 && 0 == b % -2) && 1 <= y) && x <= 2) && r <= 2) && a == 2) && 0 <= x) && 2 * (b * -1 / -2) <= 2))) && cond == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 43 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.6s, OverallIterations: 7, TraceHistogramMax: 2, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 180 SDtfs, 1111 SDslu, 277 SDs, 0 SdLazy, 659 SolverSat, 224 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 162 GetRequests, 70 SyntacticMatches, 1 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=72occurred in iteration=4, 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, 7 MinimizatonAttempts, 75 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 30 NumberOfFragments, 843 HoareAnnotationTreeSize, 10 FomulaSimplifications, 2088 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 10 FomulaSimplificationsInter, 221 FormulaSimplificationTreeSizeReductionInter, 1.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 137 NumberOfCodeBlocks, 137 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 130 ConstructedInterpolants, 0 QuantifiedInterpolants, 42075 SizeOfPredicates, 68 NumberOfNonLiveVariables, 579 ConjunctsInSsa, 171 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 0/17 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...