/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/hard-ll_valuebound1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 05:27:53,395 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 05:27:53,398 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 05:27:53,434 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 05:27:53,435 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 05:27:53,437 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 05:27:53,438 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 05:27:53,441 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 05:27:53,443 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 05:27:53,445 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 05:27:53,446 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 05:27:53,447 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 05:27:53,448 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 05:27:53,449 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 05:27:53,451 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 05:27:53,452 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 05:27:53,453 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 05:27:53,454 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 05:27:53,457 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 05:27:53,459 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 05:27:53,461 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 05:27:53,463 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 05:27:53,465 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 05:27:53,466 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 05:27:53,470 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 05:27:53,474 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 05:27:53,475 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 05:27:53,476 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 05:27:53,478 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 05:27:53,479 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 05:27:53,479 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 05:27:53,480 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 05:27:53,481 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 05:27:53,485 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 05:27:53,487 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 05:27:53,488 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 05:27:53,490 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 05:27:53,545 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 05:27:53,545 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 05:27:53,547 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 05:27:53,548 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 05:27:53,550 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 05:27:53,550 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 05:27:53,550 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 05:27:53,551 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 05:27:53,551 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 05:27:53,551 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 05:27:53,552 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 05:27:53,553 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 05:27:53,553 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 05:27:53,553 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 05:27:53,554 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 05:27:53,554 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 05:27:53,554 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 05:27:53,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 05:27:53,555 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 05:27:53,555 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 05:27:53,555 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 05:27:53,555 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 05:27:53,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 05:27:53,556 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 05:27:53,556 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 05:27:53,557 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 05:27:54,003 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 05:27:54,034 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 05:27:54,038 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 05:27:54,039 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 05:27:54,040 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 05:27:54,041 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound1.c [2020-12-22 05:27:54,138 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0afcff8d2/d575b8c1fe364437a0b4bd5c9d6ae8b1/FLAG125045c95 [2020-12-22 05:27:54,714 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 05:27:54,715 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound1.c [2020-12-22 05:27:54,727 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0afcff8d2/d575b8c1fe364437a0b4bd5c9d6ae8b1/FLAG125045c95 [2020-12-22 05:27:55,061 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0afcff8d2/d575b8c1fe364437a0b4bd5c9d6ae8b1 [2020-12-22 05:27:55,064 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 05:27:55,066 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 05:27:55,069 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 05:27:55,070 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 05:27:55,078 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 05:27:55,080 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 05:27:55" (1/1) ... [2020-12-22 05:27:55,083 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a2a1139 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:27:55, skipping insertion in model container [2020-12-22 05:27:55,084 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 05:27:55" (1/1) ... [2020-12-22 05:27:55,100 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 05:27:55,120 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 05:27:55,264 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/hard-ll_valuebound1.c[538,551] [2020-12-22 05:27:55,284 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 05:27:55,300 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 05:27:55,315 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/hard-ll_valuebound1.c[538,551] [2020-12-22 05:27:55,324 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 05:27:55,343 INFO L208 MainTranslator]: Completed translation [2020-12-22 05:27:55,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:27:55 WrapperNode [2020-12-22 05:27:55,344 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 05:27:55,345 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 05:27:55,346 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 05:27:55,346 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 05:27:55,355 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:27:55" (1/1) ... [2020-12-22 05:27:55,364 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:27:55" (1/1) ... [2020-12-22 05:27:55,391 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 05:27:55,392 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 05:27:55,393 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 05:27:55,393 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 05:27:55,404 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:27:55" (1/1) ... [2020-12-22 05:27:55,404 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:27:55" (1/1) ... [2020-12-22 05:27:55,407 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:27:55" (1/1) ... [2020-12-22 05:27:55,408 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:27:55" (1/1) ... [2020-12-22 05:27:55,425 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:27:55" (1/1) ... [2020-12-22 05:27:55,436 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:27:55" (1/1) ... [2020-12-22 05:27:55,443 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:27:55" (1/1) ... [2020-12-22 05:27:55,446 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 05:27:55,449 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 05:27:55,449 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 05:27:55,449 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 05:27:55,453 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:27:55" (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 05:27:55,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 05:27:55,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 05:27:55,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 05:27:55,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 05:27:56,025 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 05:27:56,025 INFO L299 CfgBuilder]: Removed 26 assume(true) statements. [2020-12-22 05:27:56,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:27:56 BoogieIcfgContainer [2020-12-22 05:27:56,027 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 05:27:56,029 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 05:27:56,029 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 05:27:56,033 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 05:27:56,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 05:27:55" (1/3) ... [2020-12-22 05:27:56,034 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79b0ddd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 05:27:56, skipping insertion in model container [2020-12-22 05:27:56,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:27:55" (2/3) ... [2020-12-22 05:27:56,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79b0ddd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 05:27:56, skipping insertion in model container [2020-12-22 05:27:56,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:27:56" (3/3) ... [2020-12-22 05:27:56,038 INFO L111 eAbstractionObserver]: Analyzing ICFG hard-ll_valuebound1.c [2020-12-22 05:27:56,068 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 05:27:56,076 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2020-12-22 05:27:56,097 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-12-22 05:27:56,126 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 05:27:56,126 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 05:27:56,127 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 05:27:56,127 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 05:27:56,127 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 05:27:56,127 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 05:27:56,128 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 05:27:56,128 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 05:27:56,145 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2020-12-22 05:27:56,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-22 05:27:56,151 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:27:56,152 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:27:56,152 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 05:27:56,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:27:56,160 INFO L82 PathProgramCache]: Analyzing trace with hash 330581779, now seen corresponding path program 1 times [2020-12-22 05:27:56,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:27:56,171 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852056254] [2020-12-22 05:27:56,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:27:56,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:27:56,337 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 05:27:56,338 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852056254] [2020-12-22 05:27:56,339 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:27:56,340 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 05:27:56,340 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495840212] [2020-12-22 05:27:56,345 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 05:27:56,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:27:56,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 05:27:56,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 05:27:56,365 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2020-12-22 05:27:56,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:27:56,389 INFO L93 Difference]: Finished difference Result 83 states and 114 transitions. [2020-12-22 05:27:56,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 05:27:56,390 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-12-22 05:27:56,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:27:56,401 INFO L225 Difference]: With dead ends: 83 [2020-12-22 05:27:56,401 INFO L226 Difference]: Without dead ends: 39 [2020-12-22 05:27:56,405 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 05:27:56,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-12-22 05:27:56,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-12-22 05:27:56,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-12-22 05:27:56,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2020-12-22 05:27:56,446 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 11 [2020-12-22 05:27:56,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:27:56,447 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2020-12-22 05:27:56,447 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 05:27:56,447 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2020-12-22 05:27:56,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-22 05:27:56,448 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:27:56,448 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:27:56,448 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 05:27:56,449 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 05:27:56,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:27:56,450 INFO L82 PathProgramCache]: Analyzing trace with hash -1507472743, now seen corresponding path program 1 times [2020-12-22 05:27:56,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:27:56,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142637111] [2020-12-22 05:27:56,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:27:56,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:27:56,554 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 05:27:56,555 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142637111] [2020-12-22 05:27:56,555 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:27:56,556 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 05:27:56,556 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507229825] [2020-12-22 05:27:56,558 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 05:27:56,558 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:27:56,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 05:27:56,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 05:27:56,560 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand 4 states. [2020-12-22 05:27:56,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:27:56,763 INFO L93 Difference]: Finished difference Result 58 states and 61 transitions. [2020-12-22 05:27:56,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 05:27:56,764 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-12-22 05:27:56,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:27:56,768 INFO L225 Difference]: With dead ends: 58 [2020-12-22 05:27:56,768 INFO L226 Difference]: Without dead ends: 56 [2020-12-22 05:27:56,769 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 05:27:56,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-12-22 05:27:56,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 37. [2020-12-22 05:27:56,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-12-22 05:27:56,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2020-12-22 05:27:56,791 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 11 [2020-12-22 05:27:56,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:27:56,791 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2020-12-22 05:27:56,791 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 05:27:56,792 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2020-12-22 05:27:56,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-22 05:27:56,795 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:27:56,795 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:27:56,795 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 05:27:56,796 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 05:27:56,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:27:56,799 INFO L82 PathProgramCache]: Analyzing trace with hash -1277171076, now seen corresponding path program 1 times [2020-12-22 05:27:56,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:27:56,800 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971443197] [2020-12-22 05:27:56,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:27:56,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:27:56,902 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 05:27:56,902 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971443197] [2020-12-22 05:27:56,903 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:27:56,903 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 05:27:56,903 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215217586] [2020-12-22 05:27:56,904 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 05:27:56,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:27:56,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 05:27:56,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 05:27:56,905 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand 4 states. [2020-12-22 05:27:57,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:27:57,008 INFO L93 Difference]: Finished difference Result 56 states and 59 transitions. [2020-12-22 05:27:57,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 05:27:57,009 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-12-22 05:27:57,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:27:57,010 INFO L225 Difference]: With dead ends: 56 [2020-12-22 05:27:57,010 INFO L226 Difference]: Without dead ends: 54 [2020-12-22 05:27:57,011 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 05:27:57,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-12-22 05:27:57,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 35. [2020-12-22 05:27:57,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-12-22 05:27:57,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2020-12-22 05:27:57,019 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 13 [2020-12-22 05:27:57,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:27:57,020 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2020-12-22 05:27:57,020 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 05:27:57,020 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2020-12-22 05:27:57,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-22 05:27:57,021 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:27:57,021 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:27:57,021 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 05:27:57,021 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 05:27:57,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:27:57,022 INFO L82 PathProgramCache]: Analyzing trace with hash 999399167, now seen corresponding path program 1 times [2020-12-22 05:27:57,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:27:57,023 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74214625] [2020-12-22 05:27:57,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:27:57,041 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:27:57,041 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [921996234] [2020-12-22 05:27:57,042 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 05:27:57,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:27:57,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 27 conjunts are in the unsatisfiable core [2020-12-22 05:27:57,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:27:57,390 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 05:27:57,390 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74214625] [2020-12-22 05:27:57,391 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:27:57,391 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [921996234] [2020-12-22 05:27:57,391 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:27:57,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 05:27:57,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360047105] [2020-12-22 05:27:57,392 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-22 05:27:57,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:27:57,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-22 05:27:57,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-12-22 05:27:57,394 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand 10 states. [2020-12-22 05:27:57,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:27:57,781 INFO L93 Difference]: Finished difference Result 76 states and 82 transitions. [2020-12-22 05:27:57,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 05:27:57,782 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 15 [2020-12-22 05:27:57,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:27:57,783 INFO L225 Difference]: With dead ends: 76 [2020-12-22 05:27:57,783 INFO L226 Difference]: Without dead ends: 54 [2020-12-22 05:27:57,784 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-12-22 05:27:57,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-12-22 05:27:57,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 49. [2020-12-22 05:27:57,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-12-22 05:27:57,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 53 transitions. [2020-12-22 05:27:57,795 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 53 transitions. Word has length 15 [2020-12-22 05:27:57,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:27:57,795 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 53 transitions. [2020-12-22 05:27:57,795 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-22 05:27:57,795 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 53 transitions. [2020-12-22 05:27:57,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-22 05:27:57,796 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:27:57,796 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:27:58,009 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:27:58,010 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 05:27:58,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:27:58,012 INFO L82 PathProgramCache]: Analyzing trace with hash 392223696, now seen corresponding path program 1 times [2020-12-22 05:27:58,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:27:58,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049418417] [2020-12-22 05:27:58,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:27:58,039 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:27:58,040 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1138344088] [2020-12-22 05:27:58,040 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 05:27:58,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:27:58,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 25 conjunts are in the unsatisfiable core [2020-12-22 05:27:58,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:27:58,287 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 05:27:58,287 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049418417] [2020-12-22 05:27:58,288 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:27:58,288 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1138344088] [2020-12-22 05:27:58,288 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:27:58,288 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-22 05:27:58,288 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411663471] [2020-12-22 05:27:58,289 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 05:27:58,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:27:58,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 05:27:58,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-12-22 05:27:58,290 INFO L87 Difference]: Start difference. First operand 49 states and 53 transitions. Second operand 9 states. [2020-12-22 05:27:58,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:27:58,590 INFO L93 Difference]: Finished difference Result 67 states and 72 transitions. [2020-12-22 05:27:58,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 05:27:58,591 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2020-12-22 05:27:58,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:27:58,592 INFO L225 Difference]: With dead ends: 67 [2020-12-22 05:27:58,592 INFO L226 Difference]: Without dead ends: 56 [2020-12-22 05:27:58,593 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2020-12-22 05:27:58,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-12-22 05:27:58,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 50. [2020-12-22 05:27:58,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-12-22 05:27:58,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 55 transitions. [2020-12-22 05:27:58,603 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 55 transitions. Word has length 18 [2020-12-22 05:27:58,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:27:58,603 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 55 transitions. [2020-12-22 05:27:58,604 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 05:27:58,604 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 55 transitions. [2020-12-22 05:27:58,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-22 05:27:58,605 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:27:58,605 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:27:58,820 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:27:58,821 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 05:27:58,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:27:58,822 INFO L82 PathProgramCache]: Analyzing trace with hash 434992196, now seen corresponding path program 1 times [2020-12-22 05:27:58,823 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:27:58,823 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489245836] [2020-12-22 05:27:58,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:27:58,840 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:27:58,840 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [243109103] [2020-12-22 05:27:58,840 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 05:27:58,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:27:58,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 39 conjunts are in the unsatisfiable core [2020-12-22 05:27:58,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:27:59,287 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 05:27:59,293 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 05:27:59,296 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 05:27:59,303 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 05:27:59,306 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 05:27:59,310 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 05:27:59,317 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 05:27:59,321 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 05:27:59,592 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 05:27:59,644 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:27:59,644 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489245836] [2020-12-22 05:27:59,644 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:27:59,645 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [243109103] [2020-12-22 05:27:59,645 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-22 05:27:59,645 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-12-22 05:27:59,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282102211] [2020-12-22 05:27:59,646 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-12-22 05:27:59,646 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:27:59,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-12-22 05:27:59,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-12-22 05:27:59,647 INFO L87 Difference]: Start difference. First operand 50 states and 55 transitions. Second operand 13 states. [2020-12-22 05:28:00,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:28:00,414 INFO L93 Difference]: Finished difference Result 76 states and 83 transitions. [2020-12-22 05:28:00,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 05:28:00,415 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 22 [2020-12-22 05:28:00,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:28:00,416 INFO L225 Difference]: With dead ends: 76 [2020-12-22 05:28:00,416 INFO L226 Difference]: Without dead ends: 66 [2020-12-22 05:28:00,418 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=122, Invalid=298, Unknown=0, NotChecked=0, Total=420 [2020-12-22 05:28:00,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-12-22 05:28:00,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 62. [2020-12-22 05:28:00,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-12-22 05:28:00,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 68 transitions. [2020-12-22 05:28:00,451 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 68 transitions. Word has length 22 [2020-12-22 05:28:00,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:28:00,451 INFO L481 AbstractCegarLoop]: Abstraction has 62 states and 68 transitions. [2020-12-22 05:28:00,452 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-12-22 05:28:00,452 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 68 transitions. [2020-12-22 05:28:00,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-12-22 05:28:00,453 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:28:00,453 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:28:00,669 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:28:00,670 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 05:28:00,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:28:00,671 INFO L82 PathProgramCache]: Analyzing trace with hash -919005345, now seen corresponding path program 2 times [2020-12-22 05:28:00,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:28:00,672 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401070074] [2020-12-22 05:28:00,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:28:00,703 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:28:00,704 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1717831304] [2020-12-22 05:28:00,704 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 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 05:28:00,782 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-22 05:28:00,783 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 05:28:00,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-22 05:28:00,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:28:00,952 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:28:00,952 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401070074] [2020-12-22 05:28:00,952 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:28:00,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1717831304] [2020-12-22 05:28:00,953 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:28:00,953 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 05:28:00,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118231712] [2020-12-22 05:28:00,954 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 05:28:00,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:28:00,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 05:28:00,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-22 05:28:00,955 INFO L87 Difference]: Start difference. First operand 62 states and 68 transitions. Second operand 8 states. [2020-12-22 05:28:01,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:28:01,210 INFO L93 Difference]: Finished difference Result 113 states and 126 transitions. [2020-12-22 05:28:01,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 05:28:01,211 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 29 [2020-12-22 05:28:01,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:28:01,212 INFO L225 Difference]: With dead ends: 113 [2020-12-22 05:28:01,212 INFO L226 Difference]: Without dead ends: 78 [2020-12-22 05:28:01,213 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-12-22 05:28:01,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-12-22 05:28:01,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 53. [2020-12-22 05:28:01,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-12-22 05:28:01,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 57 transitions. [2020-12-22 05:28:01,221 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 57 transitions. Word has length 29 [2020-12-22 05:28:01,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:28:01,222 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 57 transitions. [2020-12-22 05:28:01,222 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 05:28:01,222 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 57 transitions. [2020-12-22 05:28:01,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-12-22 05:28:01,223 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:28:01,223 INFO L422 BasicCegarLoop]: trace histogram [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 05:28:01,438 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:28:01,439 INFO L429 AbstractCegarLoop]: === Iteration 8 === [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 05:28:01,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:28:01,440 INFO L82 PathProgramCache]: Analyzing trace with hash -36466664, now seen corresponding path program 1 times [2020-12-22 05:28:01,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:28:01,441 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148548982] [2020-12-22 05:28:01,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:28:01,459 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:28:01,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1542672404] [2020-12-22 05:28:01,460 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 05:28:01,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:28:01,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 49 conjunts are in the unsatisfiable core [2020-12-22 05:28:01,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:28:02,205 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:28:02,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148548982] [2020-12-22 05:28:02,206 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:28:02,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1542672404] [2020-12-22 05:28:02,207 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-22 05:28:02,207 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-12-22 05:28:02,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791207794] [2020-12-22 05:28:02,207 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-12-22 05:28:02,208 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:28:02,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-12-22 05:28:02,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2020-12-22 05:28:02,209 INFO L87 Difference]: Start difference. First operand 53 states and 57 transitions. Second operand 15 states. [2020-12-22 05:28:03,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:28:03,086 INFO L93 Difference]: Finished difference Result 89 states and 97 transitions. [2020-12-22 05:28:03,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 05:28:03,087 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 31 [2020-12-22 05:28:03,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:28:03,087 INFO L225 Difference]: With dead ends: 89 [2020-12-22 05:28:03,088 INFO L226 Difference]: Without dead ends: 63 [2020-12-22 05:28:03,088 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=145, Invalid=407, Unknown=0, NotChecked=0, Total=552 [2020-12-22 05:28:03,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-12-22 05:28:03,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 52. [2020-12-22 05:28:03,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-12-22 05:28:03,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 56 transitions. [2020-12-22 05:28:03,097 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 56 transitions. Word has length 31 [2020-12-22 05:28:03,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:28:03,098 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 56 transitions. [2020-12-22 05:28:03,098 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-12-22 05:28:03,098 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 56 transitions. [2020-12-22 05:28:03,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-22 05:28:03,099 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:28:03,099 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] [2020-12-22 05:28:03,313 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:28:03,314 INFO L429 AbstractCegarLoop]: === Iteration 9 === [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 05:28:03,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:28:03,315 INFO L82 PathProgramCache]: Analyzing trace with hash -684568005, now seen corresponding path program 1 times [2020-12-22 05:28:03,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:28:03,315 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663393009] [2020-12-22 05:28:03,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:28:03,341 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:28:03,342 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [240567263] [2020-12-22 05:28:03,345 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 05:28:03,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:28:03,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 47 conjunts are in the unsatisfiable core [2020-12-22 05:28:03,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:28:04,108 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 05:28:04,108 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663393009] [2020-12-22 05:28:04,111 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:28:04,111 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [240567263] [2020-12-22 05:28:04,112 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-22 05:28:04,112 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-12-22 05:28:04,112 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944545632] [2020-12-22 05:28:04,113 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-12-22 05:28:04,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:28:04,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-12-22 05:28:04,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2020-12-22 05:28:04,119 INFO L87 Difference]: Start difference. First operand 52 states and 56 transitions. Second operand 16 states. [2020-12-22 05:28:04,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:28:04,962 INFO L93 Difference]: Finished difference Result 61 states and 68 transitions. [2020-12-22 05:28:04,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-12-22 05:28:04,962 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 33 [2020-12-22 05:28:04,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:28:04,964 INFO L225 Difference]: With dead ends: 61 [2020-12-22 05:28:04,964 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 05:28:04,965 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=147, Invalid=405, Unknown=0, NotChecked=0, Total=552 [2020-12-22 05:28:04,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 05:28:04,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 05:28:04,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 05:28:04,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 05:28:04,966 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2020-12-22 05:28:04,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:28:04,966 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 05:28:04,966 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-12-22 05:28:04,967 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 05:28:04,967 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 05:28:05,167 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:28:05,171 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-22 05:28:05,542 WARN L197 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 37 [2020-12-22 05:28:05,790 WARN L197 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 44 [2020-12-22 05:28:05,982 WARN L197 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 37 [2020-12-22 05:28:06,154 WARN L197 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 35 [2020-12-22 05:28:06,337 WARN L197 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 37 [2020-12-22 05:28:06,449 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 32 [2020-12-22 05:28:06,694 WARN L197 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 44 [2020-12-22 05:28:06,698 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2020-12-22 05:28:06,698 INFO L189 CegarLoopUtils]: For program point L11(lines 11 13) no Hoare annotation was computed. [2020-12-22 05:28:06,698 INFO L189 CegarLoopUtils]: For program point L11-1(lines 11 13) no Hoare annotation was computed. [2020-12-22 05:28:06,698 INFO L189 CegarLoopUtils]: For program point L11-2(lines 11 13) no Hoare annotation was computed. [2020-12-22 05:28:06,698 INFO L185 CegarLoopUtils]: At program point L36-2(lines 36 44) the Hoare annotation is: (let ((.cse0 (mod ULTIMATE.start_main_~B~0 4294967296))) (let ((.cse1 (< 0 (+ (div (+ (* ULTIMATE.start_main_~r~0 (- 1)) 1) 4294967296) 1))) (.cse2 (<= 1 .cse0)) (.cse3 (= ULTIMATE.start_main_~r~0 (mod ULTIMATE.start_main_~A~0 4294967296))) (.cse4 (= ULTIMATE.start_main_~q~0 0)) (.cse5 (= ULTIMATE.start_assume_abort_if_not_~cond 1))) (or (and (<= .cse0 1) .cse1 (= ULTIMATE.start_main_~d~0 .cse0) .cse2 .cse3 (= ULTIMATE.start_main_~p~0 1) .cse4 .cse5) (and (<= .cse0 ULTIMATE.start_main_~r~0) .cse1 (= ULTIMATE.start_main_~d~0 (* .cse0 2)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) .cse2 .cse3 (= ULTIMATE.start_main_~p~0 2) .cse4 .cse5)))) [2020-12-22 05:28:06,698 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2020-12-22 05:28:06,699 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-22 05:28:06,699 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-22 05:28:06,699 INFO L189 CegarLoopUtils]: For program point L12(line 12) no Hoare annotation was computed. [2020-12-22 05:28:06,699 INFO L189 CegarLoopUtils]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-12-22 05:28:06,699 INFO L189 CegarLoopUtils]: For program point L12-4(line 12) no Hoare annotation was computed. [2020-12-22 05:28:06,699 INFO L192 CegarLoopUtils]: At program point L62(lines 22 63) the Hoare annotation is: true [2020-12-22 05:28:06,699 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2020-12-22 05:28:06,699 INFO L189 CegarLoopUtils]: For program point L54(lines 54 57) no Hoare annotation was computed. [2020-12-22 05:28:06,699 INFO L189 CegarLoopUtils]: For program point L54-2(lines 22 63) no Hoare annotation was computed. [2020-12-22 05:28:06,699 INFO L189 CegarLoopUtils]: For program point L46-1(lines 46 58) no Hoare annotation was computed. [2020-12-22 05:28:06,699 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2020-12-22 05:28:06,700 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2020-12-22 05:28:06,700 INFO L189 CegarLoopUtils]: For program point L15(lines 15 18) no Hoare annotation was computed. [2020-12-22 05:28:06,700 INFO L185 CegarLoopUtils]: At program point L15-2(lines 14 20) the Hoare annotation is: (let ((.cse1 (mod ULTIMATE.start_main_~B~0 4294967296))) (let ((.cse0 (= ULTIMATE.start_main_~A~0 (+ ULTIMATE.start_main_~r~0 (* (div ULTIMATE.start_main_~A~0 4294967296) 4294967296)))) (.cse2 (< 0 (+ (div (+ (* ULTIMATE.start_main_~r~0 (- 1)) 1) 4294967296) 1))) (.cse3 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse4 (<= 1 .cse1)) (.cse5 (= ULTIMATE.start_main_~q~0 0)) (.cse6 (= ULTIMATE.start_assume_abort_if_not_~cond 1))) (or (and .cse0 (<= .cse1 ULTIMATE.start_main_~r~0) .cse2 (= ULTIMATE.start_main_~d~0 (* .cse1 2)) .cse3 .cse4 (= ULTIMATE.start_main_~p~0 2) .cse5 .cse6) (and (<= .cse1 1) .cse0 .cse2 (= ULTIMATE.start_main_~d~0 .cse1) .cse3 .cse4 (= ULTIMATE.start_main_~p~0 1) .cse5 .cse6)))) [2020-12-22 05:28:06,700 INFO L189 CegarLoopUtils]: For program point L15-3(lines 15 18) no Hoare annotation was computed. [2020-12-22 05:28:06,700 INFO L185 CegarLoopUtils]: At program point L15-5(lines 14 20) the Hoare annotation is: (let ((.cse1 (mod ULTIMATE.start_main_~B~0 4294967296))) (let ((.cse0 (= ULTIMATE.start_main_~A~0 (+ ULTIMATE.start_main_~r~0 (* (div ULTIMATE.start_main_~A~0 4294967296) 4294967296)))) (.cse2 (< 0 (+ (div (+ (* ULTIMATE.start_main_~r~0 (- 1)) 1) 4294967296) 1))) (.cse3 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse4 (<= 1 .cse1)) (.cse5 (= ULTIMATE.start_main_~q~0 0)) (.cse6 (= ULTIMATE.start_assume_abort_if_not_~cond 1))) (or (and .cse0 (<= .cse1 ULTIMATE.start_main_~r~0) .cse2 (= ULTIMATE.start_main_~d~0 (* .cse1 2)) .cse3 .cse4 (= ULTIMATE.start_main_~p~0 2) .cse5 .cse6) (and (<= .cse1 1) .cse0 .cse2 (= ULTIMATE.start_main_~d~0 .cse1) .cse3 .cse4 (= ULTIMATE.start_main_~p~0 1) .cse5 .cse6)))) [2020-12-22 05:28:06,700 INFO L189 CegarLoopUtils]: For program point L15-6(lines 15 18) no Hoare annotation was computed. [2020-12-22 05:28:06,700 INFO L185 CegarLoopUtils]: At program point L15-8(line 40) the Hoare annotation is: (let ((.cse1 (mod ULTIMATE.start_main_~B~0 4294967296))) (let ((.cse0 (= ULTIMATE.start_main_~A~0 (+ ULTIMATE.start_main_~r~0 (* (div ULTIMATE.start_main_~A~0 4294967296) 4294967296)))) (.cse2 (< 0 (+ (div (+ (* ULTIMATE.start_main_~r~0 (- 1)) 1) 4294967296) 1))) (.cse3 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse4 (<= 1 .cse1)) (.cse5 (= ULTIMATE.start_main_~q~0 0)) (.cse6 (= ULTIMATE.start_assume_abort_if_not_~cond 1))) (or (and .cse0 (<= .cse1 ULTIMATE.start_main_~r~0) .cse2 (= ULTIMATE.start_main_~d~0 (* .cse1 2)) .cse3 .cse4 (= ULTIMATE.start_main_~p~0 2) .cse5 .cse6) (and (<= .cse1 1) .cse0 .cse2 (= ULTIMATE.start_main_~d~0 .cse1) .cse3 .cse4 (= ULTIMATE.start_main_~p~0 1) .cse5 .cse6)))) [2020-12-22 05:28:06,700 INFO L189 CegarLoopUtils]: For program point L15-9(lines 15 18) no Hoare annotation was computed. [2020-12-22 05:28:06,701 INFO L185 CegarLoopUtils]: At program point L15-11(lines 14 20) the Hoare annotation is: (let ((.cse9 (mod ULTIMATE.start_main_~A~0 4294967296)) (.cse0 (mod ULTIMATE.start_main_~B~0 4294967296))) (let ((.cse6 (<= .cse0 1)) (.cse7 (= ULTIMATE.start_main_~d~0 .cse0)) (.cse1 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse2 (<= 1 .cse0)) (.cse3 (= ULTIMATE.start_main_~r~0 .cse9)) (.cse8 (= ULTIMATE.start_main_~p~0 1)) (.cse4 (= ULTIMATE.start_main_~q~0 0)) (.cse5 (= ULTIMATE.start_assume_abort_if_not_~cond 1))) (or (and (<= .cse0 ULTIMATE.start_main_~r~0) (= (mod ULTIMATE.start_main_~d~0 2) 0) (< ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~d~0) .cse1 .cse2 .cse3 (= ULTIMATE.start_main_~p~0 2) .cse4 .cse5 (< 0 (+ (div (+ (* (div ULTIMATE.start_main_~d~0 2) (- 1)) 1) 4294967296) 1))) (and (= ULTIMATE.start_main_~q~0 1) .cse6 .cse7 .cse1 .cse8 (< .cse9 (* 2 .cse0)) .cse5 (<= .cse0 .cse9) (= (+ ULTIMATE.start_main_~r~0 .cse0) .cse9)) (and .cse6 .cse7 .cse1 .cse2 .cse3 .cse8 .cse4 .cse5)))) [2020-12-22 05:28:06,701 INFO L189 CegarLoopUtils]: For program point L15-12(lines 15 18) no Hoare annotation was computed. [2020-12-22 05:28:06,701 INFO L185 CegarLoopUtils]: At program point L15-14(line 50) the Hoare annotation is: (let ((.cse9 (mod ULTIMATE.start_main_~A~0 4294967296)) (.cse0 (mod ULTIMATE.start_main_~B~0 4294967296))) (let ((.cse6 (<= .cse0 1)) (.cse7 (= ULTIMATE.start_main_~d~0 .cse0)) (.cse1 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse2 (<= 1 .cse0)) (.cse3 (= ULTIMATE.start_main_~r~0 .cse9)) (.cse8 (= ULTIMATE.start_main_~p~0 1)) (.cse4 (= ULTIMATE.start_main_~q~0 0)) (.cse5 (= ULTIMATE.start_assume_abort_if_not_~cond 1))) (or (and (<= .cse0 ULTIMATE.start_main_~r~0) (= (mod ULTIMATE.start_main_~d~0 2) 0) (< ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~d~0) .cse1 .cse2 .cse3 (= ULTIMATE.start_main_~p~0 2) .cse4 .cse5 (< 0 (+ (div (+ (* (div ULTIMATE.start_main_~d~0 2) (- 1)) 1) 4294967296) 1))) (and (= ULTIMATE.start_main_~q~0 1) .cse6 .cse7 .cse1 .cse8 (< .cse9 (* 2 .cse0)) .cse5 (<= .cse0 .cse9) (= (+ ULTIMATE.start_main_~r~0 .cse0) .cse9)) (and .cse6 .cse7 .cse1 .cse2 .cse3 .cse8 .cse4 .cse5)))) [2020-12-22 05:28:06,701 INFO L189 CegarLoopUtils]: For program point L15-15(lines 15 18) no Hoare annotation was computed. [2020-12-22 05:28:06,701 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-22 05:28:06,701 INFO L185 CegarLoopUtils]: At program point L15-17(lines 14 20) the Hoare annotation is: (let ((.cse2 (mod ULTIMATE.start_main_~B~0 4294967296))) (let ((.cse0 (<= .cse2 1)) (.cse1 (= ULTIMATE.start_main_~d~0 .cse2)) (.cse3 (= ULTIMATE.start_main_~p~0 1)) (.cse4 (= ULTIMATE.start_assume_abort_if_not_~cond 1))) (or (and (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) .cse0 .cse1 (<= 1 .cse2) .cse3 (= ULTIMATE.start_main_~q~0 0) .cse4) (let ((.cse5 (+ ULTIMATE.start_main_~d~0 ULTIMATE.start_main_~r~0))) (and .cse0 .cse1 (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~p~0) .cse3 (<= .cse2 .cse5) .cse4 (< .cse5 (* 2 .cse2)) (= (mod ULTIMATE.start_main_~A~0 4294967296) .cse5)))))) [2020-12-22 05:28:06,702 INFO L189 CegarLoopUtils]: For program point L15-18(lines 15 18) no Hoare annotation was computed. [2020-12-22 05:28:06,702 INFO L192 CegarLoopUtils]: At program point L15-20(lines 14 20) the Hoare annotation is: true [2020-12-22 05:28:06,702 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2020-12-22 05:28:06,702 INFO L189 CegarLoopUtils]: For program point L16(lines 16 17) no Hoare annotation was computed. [2020-12-22 05:28:06,702 INFO L189 CegarLoopUtils]: For program point L16-1(lines 16 17) no Hoare annotation was computed. [2020-12-22 05:28:06,702 INFO L189 CegarLoopUtils]: For program point L16-2(lines 16 17) no Hoare annotation was computed. [2020-12-22 05:28:06,702 INFO L189 CegarLoopUtils]: For program point L16-3(lines 16 17) no Hoare annotation was computed. [2020-12-22 05:28:06,702 INFO L189 CegarLoopUtils]: For program point L16-4(lines 16 17) no Hoare annotation was computed. [2020-12-22 05:28:06,702 INFO L189 CegarLoopUtils]: For program point L16-5(lines 16 17) no Hoare annotation was computed. [2020-12-22 05:28:06,703 INFO L189 CegarLoopUtils]: For program point L16-6(lines 16 17) no Hoare annotation was computed. [2020-12-22 05:28:06,703 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-22 05:28:06,703 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2020-12-22 05:28:06,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 05:28:06 BoogieIcfgContainer [2020-12-22 05:28:06,732 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 05:28:06,732 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 05:28:06,732 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 05:28:06,733 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 05:28:06,733 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:27:56" (3/4) ... [2020-12-22 05:28:06,736 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 05:28:06,749 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2020-12-22 05:28:06,749 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-22 05:28:06,750 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 05:28:06,750 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 05:28:06,822 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/nla-digbench-scaling/hard-ll_valuebound1.c-witness.graphml [2020-12-22 05:28:06,822 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 05:28:06,824 INFO L168 Benchmark]: Toolchain (without parser) took 11757.78 ms. Allocated memory was 159.4 MB in the beginning and 230.7 MB in the end (delta: 71.3 MB). Free memory was 135.5 MB in the beginning and 193.0 MB in the end (delta: -57.5 MB). Peak memory consumption was 15.1 MB. Max. memory is 8.0 GB. [2020-12-22 05:28:06,824 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 159.4 MB. Free memory is still 136.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 05:28:06,825 INFO L168 Benchmark]: CACSL2BoogieTranslator took 275.37 ms. Allocated memory is still 159.4 MB. Free memory was 135.3 MB in the beginning and 125.5 MB in the end (delta: 9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-12-22 05:28:06,825 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.34 ms. Allocated memory is still 159.4 MB. Free memory was 125.3 MB in the beginning and 123.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 05:28:06,826 INFO L168 Benchmark]: Boogie Preprocessor took 55.67 ms. Allocated memory is still 159.4 MB. Free memory was 123.1 MB in the beginning and 122.0 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 05:28:06,826 INFO L168 Benchmark]: RCFGBuilder took 578.17 ms. Allocated memory is still 159.4 MB. Free memory was 121.8 MB in the beginning and 141.6 MB in the end (delta: -19.8 MB). Peak memory consumption was 20.9 MB. Max. memory is 8.0 GB. [2020-12-22 05:28:06,827 INFO L168 Benchmark]: TraceAbstraction took 10702.97 ms. Allocated memory was 159.4 MB in the beginning and 230.7 MB in the end (delta: 71.3 MB). Free memory was 141.1 MB in the beginning and 196.7 MB in the end (delta: -55.6 MB). Peak memory consumption was 133.7 MB. Max. memory is 8.0 GB. [2020-12-22 05:28:06,828 INFO L168 Benchmark]: Witness Printer took 90.02 ms. Allocated memory is still 230.7 MB. Free memory was 196.7 MB in the beginning and 193.0 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-12-22 05:28:06,831 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 159.4 MB. Free memory is still 136.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 275.37 ms. Allocated memory is still 159.4 MB. Free memory was 135.3 MB in the beginning and 125.5 MB in the end (delta: 9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 46.34 ms. Allocated memory is still 159.4 MB. Free memory was 125.3 MB in the beginning and 123.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 55.67 ms. Allocated memory is still 159.4 MB. Free memory was 123.1 MB in the beginning and 122.0 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 578.17 ms. Allocated memory is still 159.4 MB. Free memory was 121.8 MB in the beginning and 141.6 MB in the end (delta: -19.8 MB). Peak memory consumption was 20.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 10702.97 ms. Allocated memory was 159.4 MB in the beginning and 230.7 MB in the end (delta: 71.3 MB). Free memory was 141.1 MB in the beginning and 196.7 MB in the end (delta: -55.6 MB). Peak memory consumption was 133.7 MB. Max. memory is 8.0 GB. * Witness Printer took 90.02 ms. Allocated memory is still 230.7 MB. Free memory was 196.7 MB in the beginning and 193.0 MB in the end (delta: 3.7 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: 14]: Loop Invariant Derived loop invariant: ((((((((A == r + A / 4294967296 * 4294967296 && B % 4294967296 <= r) && 0 < (r * -1 + 1) / 4294967296 + 1) && d == B % 4294967296 * 2) && 1 == cond) && 1 <= B % 4294967296) && p == 2) && q == 0) && cond == 1) || ((((((((B % 4294967296 <= 1 && A == r + A / 4294967296 * 4294967296) && 0 < (r * -1 + 1) / 4294967296 + 1) && d == B % 4294967296) && 1 == cond) && 1 <= B % 4294967296) && p == 1) && q == 0) && cond == 1) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: ((((((((((B % 4294967296 <= r && d % 2 == 0) && r < d) && 1 == cond) && 1 <= B % 4294967296) && r == A % 4294967296) && p == 2) && q == 0) && cond == 1) && 0 < (d / 2 * -1 + 1) / 4294967296 + 1) || ((((((((q == 1 && B % 4294967296 <= 1) && d == B % 4294967296) && 1 == cond) && p == 1) && A % 4294967296 < 2 * (B % 4294967296)) && cond == 1) && B % 4294967296 <= A % 4294967296) && r + B % 4294967296 == A % 4294967296)) || (((((((B % 4294967296 <= 1 && d == B % 4294967296) && 1 == cond) && 1 <= B % 4294967296) && r == A % 4294967296) && p == 1) && q == 0) && cond == 1) - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: ((((((((A == r + A / 4294967296 * 4294967296 && B % 4294967296 <= r) && 0 < (r * -1 + 1) / 4294967296 + 1) && d == B % 4294967296 * 2) && 1 == cond) && 1 <= B % 4294967296) && p == 2) && q == 0) && cond == 1) || ((((((((B % 4294967296 <= 1 && A == r + A / 4294967296 * 4294967296) && 0 < (r * -1 + 1) / 4294967296 + 1) && d == B % 4294967296) && 1 == cond) && 1 <= B % 4294967296) && p == 1) && q == 0) && cond == 1) - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: (((((((B % 4294967296 <= 1 && 0 < (r * -1 + 1) / 4294967296 + 1) && d == B % 4294967296) && 1 <= B % 4294967296) && r == A % 4294967296) && p == 1) && q == 0) && cond == 1) || ((((((((B % 4294967296 <= r && 0 < (r * -1 + 1) / 4294967296 + 1) && d == B % 4294967296 * 2) && 1 == cond) && 1 <= B % 4294967296) && r == A % 4294967296) && p == 2) && q == 0) && cond == 1) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: ((((((((A == r + A / 4294967296 * 4294967296 && B % 4294967296 <= r) && 0 < (r * -1 + 1) / 4294967296 + 1) && d == B % 4294967296 * 2) && 1 == cond) && 1 <= B % 4294967296) && p == 2) && q == 0) && cond == 1) || ((((((((B % 4294967296 <= 1 && A == r + A / 4294967296 * 4294967296) && 0 < (r * -1 + 1) / 4294967296 + 1) && d == B % 4294967296) && 1 == cond) && 1 <= B % 4294967296) && p == 1) && q == 0) && cond == 1) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: ((((((!(0 == cond) && B % 4294967296 <= 1) && d == B % 4294967296) && 1 <= B % 4294967296) && p == 1) && q == 0) && cond == 1) || ((((((((B % 4294967296 <= 1 && d == B % 4294967296) && 1 == cond) && q == p) && p == 1) && B % 4294967296 <= d + r) && cond == 1) && d + r < 2 * (B % 4294967296)) && A % 4294967296 == d + r) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: ((((((((((B % 4294967296 <= r && d % 2 == 0) && r < d) && 1 == cond) && 1 <= B % 4294967296) && r == A % 4294967296) && p == 2) && q == 0) && cond == 1) && 0 < (d / 2 * -1 + 1) / 4294967296 + 1) || ((((((((q == 1 && B % 4294967296 <= 1) && d == B % 4294967296) && 1 == cond) && p == 1) && A % 4294967296 < 2 * (B % 4294967296)) && cond == 1) && B % 4294967296 <= A % 4294967296) && r + B % 4294967296 == A % 4294967296)) || (((((((B % 4294967296 <= 1 && d == B % 4294967296) && 1 == cond) && 1 <= B % 4294967296) && r == A % 4294967296) && p == 1) && q == 0) && cond == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 43 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 9.0s, OverallIterations: 9, TraceHistogramMax: 3, AutomataDifference: 3.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 216 SDtfs, 1067 SDslu, 330 SDs, 0 SdLazy, 768 SolverSat, 281 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 192 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=62occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 89 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 27 NumberOfFragments, 725 HoareAnnotationTreeSize, 9 FomulaSimplifications, 1296 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 9 FomulaSimplificationsInter, 567 FormulaSimplificationTreeSizeReductionInter, 1.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 183 NumberOfCodeBlocks, 183 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 174 ConstructedInterpolants, 0 QuantifiedInterpolants, 76100 SizeOfPredicates, 76 NumberOfNonLiveVariables, 613 ConjunctsInSsa, 201 ConjunctsInUnsatCore, 9 InterpolantComputations, 6 PerfectInterpolantSequences, 19/45 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...