/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/egcd-ll_valuebound1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 05:11:30,052 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 05:11:30,055 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 05:11:30,115 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 05:11:30,116 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 05:11:30,120 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 05:11:30,124 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 05:11:30,132 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 05:11:30,135 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 05:11:30,141 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 05:11:30,143 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 05:11:30,145 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2020-12-22 05:11:30,226 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 05:11:30,227 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 05:11:30,228 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 05:11:30,233 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 05:11:30,287 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 05:11:30,287 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 05:11:30,291 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 05:11:30,291 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 05:11:30,291 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 05:11:30,292 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 05:11:30,292 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 05:11:30,292 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 05:11:30,292 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 05:11:30,293 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 05:11:30,294 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 05:11:30,295 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 05:11:30,295 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 05:11:30,295 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 05:11:30,295 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 05:11:30,296 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 05:11:30,296 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 05:11:30,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 05:11:30,297 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 05:11:30,297 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 05:11:30,297 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 05:11:30,298 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 05:11:30,298 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 05:11:30,298 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 05:11:30,299 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 05:11:30,299 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 05:11:30,775 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 05:11:30,807 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 05:11:30,810 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 05:11:30,811 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 05:11:30,812 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 05:11:30,813 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound1.c [2020-12-22 05:11:30,882 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d7f7bab5/ce568cba509c4c3db803c74ec5fe8631/FLAG456853e5c [2020-12-22 05:11:31,427 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 05:11:31,428 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound1.c [2020-12-22 05:11:31,435 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d7f7bab5/ce568cba509c4c3db803c74ec5fe8631/FLAG456853e5c [2020-12-22 05:11:31,789 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d7f7bab5/ce568cba509c4c3db803c74ec5fe8631 [2020-12-22 05:11:31,793 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 05:11:31,795 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 05:11:31,800 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 05:11:31,800 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 05:11:31,811 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 05:11:31,811 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 05:11:31" (1/1) ... [2020-12-22 05:11:31,813 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d706667 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:11:31, skipping insertion in model container [2020-12-22 05:11:31,813 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 05:11:31" (1/1) ... [2020-12-22 05:11:31,822 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 05:11:31,843 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 05:11:32,028 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/egcd-ll_valuebound1.c[489,502] [2020-12-22 05:11:32,061 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 05:11:32,077 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 05:11:32,095 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/egcd-ll_valuebound1.c[489,502] [2020-12-22 05:11:32,126 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 05:11:32,156 INFO L208 MainTranslator]: Completed translation [2020-12-22 05:11:32,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:11:32 WrapperNode [2020-12-22 05:11:32,157 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 05:11:32,161 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 05:11:32,161 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 05:11:32,162 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 05:11:32,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:11:32" (1/1) ... [2020-12-22 05:11:32,195 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:11:32" (1/1) ... [2020-12-22 05:11:32,245 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 05:11:32,248 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 05:11:32,248 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 05:11:32,250 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 05:11:32,262 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:11:32" (1/1) ... [2020-12-22 05:11:32,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:11:32" (1/1) ... [2020-12-22 05:11:32,268 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:11:32" (1/1) ... [2020-12-22 05:11:32,269 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:11:32" (1/1) ... [2020-12-22 05:11:32,278 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:11:32" (1/1) ... [2020-12-22 05:11:32,290 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:11:32" (1/1) ... [2020-12-22 05:11:32,292 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:11:32" (1/1) ... [2020-12-22 05:11:32,295 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 05:11:32,296 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 05:11:32,296 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 05:11:32,297 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 05:11:32,298 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:11:32" (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 05:11:32,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 05:11:32,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 05:11:32,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 05:11:32,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 05:11:32,972 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 05:11:32,973 INFO L299 CfgBuilder]: Removed 27 assume(true) statements. [2020-12-22 05:11:32,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:11:32 BoogieIcfgContainer [2020-12-22 05:11:32,975 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 05:11:32,977 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 05:11:32,977 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 05:11:32,981 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 05:11:32,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 05:11:31" (1/3) ... [2020-12-22 05:11:32,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c4f211 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 05:11:32, skipping insertion in model container [2020-12-22 05:11:32,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:11:32" (2/3) ... [2020-12-22 05:11:32,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c4f211 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 05:11:32, skipping insertion in model container [2020-12-22 05:11:32,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:11:32" (3/3) ... [2020-12-22 05:11:32,988 INFO L111 eAbstractionObserver]: Analyzing ICFG egcd-ll_valuebound1.c [2020-12-22 05:11:33,001 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 05:11:33,007 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2020-12-22 05:11:33,029 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-12-22 05:11:33,057 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 05:11:33,057 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 05:11:33,057 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 05:11:33,057 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 05:11:33,057 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 05:11:33,058 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 05:11:33,058 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 05:11:33,058 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 05:11:33,075 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2020-12-22 05:11:33,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-22 05:11:33,081 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:11:33,082 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:11:33,082 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 05:11:33,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:11:33,089 INFO L82 PathProgramCache]: Analyzing trace with hash -144177098, now seen corresponding path program 1 times [2020-12-22 05:11:33,098 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:11:33,099 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124646198] [2020-12-22 05:11:33,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:11:33,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:11:33,261 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 05:11:33,262 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124646198] [2020-12-22 05:11:33,263 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:11:33,264 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 05:11:33,264 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446481678] [2020-12-22 05:11:33,269 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 05:11:33,269 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:11:33,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 05:11:33,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 05:11:33,286 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 2 states. [2020-12-22 05:11:33,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:11:33,309 INFO L93 Difference]: Finished difference Result 85 states and 112 transitions. [2020-12-22 05:11:33,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 05:11:33,310 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2020-12-22 05:11:33,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:11:33,319 INFO L225 Difference]: With dead ends: 85 [2020-12-22 05:11:33,320 INFO L226 Difference]: Without dead ends: 40 [2020-12-22 05:11:33,323 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 05:11:33,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-12-22 05:11:33,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-12-22 05:11:33,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-12-22 05:11:33,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions. [2020-12-22 05:11:33,362 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 13 [2020-12-22 05:11:33,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:11:33,363 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions. [2020-12-22 05:11:33,363 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 05:11:33,363 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2020-12-22 05:11:33,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-22 05:11:33,364 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:11:33,364 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:11:33,364 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 05:11:33,365 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 05:11:33,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:11:33,366 INFO L82 PathProgramCache]: Analyzing trace with hash -1281167042, now seen corresponding path program 1 times [2020-12-22 05:11:33,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:11:33,367 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982982725] [2020-12-22 05:11:33,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:11:33,404 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:11:33,405 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [940239015] [2020-12-22 05:11:33,405 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 05:11:33,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:11:33,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 17 conjunts are in the unsatisfiable core [2020-12-22 05:11:33,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:11:33,629 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 05:11:33,630 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982982725] [2020-12-22 05:11:33,630 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:11:33,630 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [940239015] [2020-12-22 05:11:33,631 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:11:33,631 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 05:11:33,631 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788901471] [2020-12-22 05:11:33,633 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 05:11:33,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:11:33,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 05:11:33,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 05:11:33,634 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand 5 states. [2020-12-22 05:11:33,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:11:33,862 INFO L93 Difference]: Finished difference Result 70 states and 72 transitions. [2020-12-22 05:11:33,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 05:11:33,863 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-12-22 05:11:33,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:11:33,865 INFO L225 Difference]: With dead ends: 70 [2020-12-22 05:11:33,865 INFO L226 Difference]: Without dead ends: 66 [2020-12-22 05:11:33,867 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 05:11:33,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-12-22 05:11:33,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 54. [2020-12-22 05:11:33,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-12-22 05:11:33,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 61 transitions. [2020-12-22 05:11:33,881 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 61 transitions. Word has length 13 [2020-12-22 05:11:33,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:11:33,881 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 61 transitions. [2020-12-22 05:11:33,881 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 05:11:33,882 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 61 transitions. [2020-12-22 05:11:33,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-22 05:11:33,882 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:11:33,883 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:11:34,096 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-12-22 05:11:34,097 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 05:11:34,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:11:34,098 INFO L82 PathProgramCache]: Analyzing trace with hash 1454243009, now seen corresponding path program 1 times [2020-12-22 05:11:34,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:11:34,099 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894855887] [2020-12-22 05:11:34,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:11:34,119 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:11:34,119 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [531955351] [2020-12-22 05:11:34,120 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 05:11:34,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:11:34,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 32 conjunts are in the unsatisfiable core [2020-12-22 05:11:34,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:11:34,710 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 05:11:34,711 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894855887] [2020-12-22 05:11:34,711 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:11:34,711 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [531955351] [2020-12-22 05:11:34,712 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:11:34,712 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-12-22 05:11:34,712 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315625103] [2020-12-22 05:11:34,713 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 05:11:34,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:11:34,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 05:11:34,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-12-22 05:11:34,719 INFO L87 Difference]: Start difference. First operand 54 states and 61 transitions. Second operand 12 states. [2020-12-22 05:11:35,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:11:35,384 INFO L93 Difference]: Finished difference Result 98 states and 112 transitions. [2020-12-22 05:11:35,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-12-22 05:11:35,385 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 15 [2020-12-22 05:11:35,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:11:35,390 INFO L225 Difference]: With dead ends: 98 [2020-12-22 05:11:35,391 INFO L226 Difference]: Without dead ends: 96 [2020-12-22 05:11:35,394 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2020-12-22 05:11:35,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2020-12-22 05:11:35,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 70. [2020-12-22 05:11:35,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-12-22 05:11:35,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 84 transitions. [2020-12-22 05:11:35,431 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 84 transitions. Word has length 15 [2020-12-22 05:11:35,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:11:35,433 INFO L481 AbstractCegarLoop]: Abstraction has 70 states and 84 transitions. [2020-12-22 05:11:35,433 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 05:11:35,434 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 84 transitions. [2020-12-22 05:11:35,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-22 05:11:35,434 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:11:35,434 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:11:35,635 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:11:35,636 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 05:11:35,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:11:35,638 INFO L82 PathProgramCache]: Analyzing trace with hash 1663317220, now seen corresponding path program 1 times [2020-12-22 05:11:35,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:11:35,639 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577683254] [2020-12-22 05:11:35,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:11:35,657 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:11:35,658 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1458524995] [2020-12-22 05:11:35,658 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 05:11:35,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:11:35,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 32 conjunts are in the unsatisfiable core [2020-12-22 05:11:35,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:11:36,014 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 05:11:36,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577683254] [2020-12-22 05:11:36,015 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:11:36,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1458524995] [2020-12-22 05:11:36,015 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:11:36,016 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-12-22 05:11:36,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311065894] [2020-12-22 05:11:36,016 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 05:11:36,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:11:36,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 05:11:36,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-12-22 05:11:36,018 INFO L87 Difference]: Start difference. First operand 70 states and 84 transitions. Second operand 12 states. [2020-12-22 05:11:36,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:11:36,578 INFO L93 Difference]: Finished difference Result 84 states and 93 transitions. [2020-12-22 05:11:36,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 05:11:36,579 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 17 [2020-12-22 05:11:36,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:11:36,580 INFO L225 Difference]: With dead ends: 84 [2020-12-22 05:11:36,580 INFO L226 Difference]: Without dead ends: 76 [2020-12-22 05:11:36,581 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=119, Invalid=223, Unknown=0, NotChecked=0, Total=342 [2020-12-22 05:11:36,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-12-22 05:11:36,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 68. [2020-12-22 05:11:36,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-12-22 05:11:36,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 79 transitions. [2020-12-22 05:11:36,591 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 79 transitions. Word has length 17 [2020-12-22 05:11:36,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:11:36,591 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 79 transitions. [2020-12-22 05:11:36,592 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 05:11:36,592 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 79 transitions. [2020-12-22 05:11:36,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-22 05:11:36,592 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:11:36,593 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:11:36,808 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:11:36,809 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 05:11:36,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:11:36,810 INFO L82 PathProgramCache]: Analyzing trace with hash 850548497, now seen corresponding path program 1 times [2020-12-22 05:11:36,811 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:11:36,811 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931036188] [2020-12-22 05:11:36,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:11:36,829 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:11:36,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1755681740] [2020-12-22 05:11:36,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:11:36,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:11:36,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-22 05:11:36,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:11:36,917 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 05:11:36,918 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931036188] [2020-12-22 05:11:36,918 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:11:36,918 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1755681740] [2020-12-22 05:11:36,919 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:11:36,919 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 05:11:36,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209108646] [2020-12-22 05:11:36,919 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 05:11:36,920 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:11:36,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 05:11:36,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 05:11:36,921 INFO L87 Difference]: Start difference. First operand 68 states and 79 transitions. Second operand 4 states. [2020-12-22 05:11:36,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:11:36,985 INFO L93 Difference]: Finished difference Result 68 states and 79 transitions. [2020-12-22 05:11:36,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 05:11:36,986 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-12-22 05:11:36,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:11:36,987 INFO L225 Difference]: With dead ends: 68 [2020-12-22 05:11:36,988 INFO L226 Difference]: Without dead ends: 66 [2020-12-22 05:11:36,988 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 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 05:11:36,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-12-22 05:11:37,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-12-22 05:11:37,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-12-22 05:11:37,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 76 transitions. [2020-12-22 05:11:37,005 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 76 transitions. Word has length 20 [2020-12-22 05:11:37,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:11:37,009 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 76 transitions. [2020-12-22 05:11:37,010 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 05:11:37,010 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 76 transitions. [2020-12-22 05:11:37,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-22 05:11:37,011 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:11:37,011 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:11:37,225 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:11:37,226 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 05:11:37,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:11:37,228 INFO L82 PathProgramCache]: Analyzing trace with hash 598848193, now seen corresponding path program 1 times [2020-12-22 05:11:37,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:11:37,229 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140554132] [2020-12-22 05:11:37,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:11:37,244 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:11:37,244 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1599473585] [2020-12-22 05:11:37,244 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 05:11:37,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:11:37,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-22 05:11:37,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:11:37,436 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:11:37,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140554132] [2020-12-22 05:11:37,437 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:11:37,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1599473585] [2020-12-22 05:11:37,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:11:37,438 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 05:11:37,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182708748] [2020-12-22 05:11:37,438 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 05:11:37,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:11:37,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 05:11:37,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-22 05:11:37,439 INFO L87 Difference]: Start difference. First operand 66 states and 76 transitions. Second operand 8 states. [2020-12-22 05:11:37,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:11:37,578 INFO L93 Difference]: Finished difference Result 70 states and 78 transitions. [2020-12-22 05:11:37,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 05:11:37,579 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 21 [2020-12-22 05:11:37,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:11:37,580 INFO L225 Difference]: With dead ends: 70 [2020-12-22 05:11:37,580 INFO L226 Difference]: Without dead ends: 34 [2020-12-22 05:11:37,580 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-12-22 05:11:37,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-12-22 05:11:37,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 30. [2020-12-22 05:11:37,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-12-22 05:11:37,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2020-12-22 05:11:37,585 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 21 [2020-12-22 05:11:37,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:11:37,585 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2020-12-22 05:11:37,586 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 05:11:37,586 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2020-12-22 05:11:37,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-22 05:11:37,586 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:11:37,587 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:11:37,800 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-12-22 05:11:37,801 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 05:11:37,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:11:37,802 INFO L82 PathProgramCache]: Analyzing trace with hash 1333477300, now seen corresponding path program 1 times [2020-12-22 05:11:37,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:11:37,803 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132900399] [2020-12-22 05:11:37,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:11:37,818 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:11:37,819 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1985493327] [2020-12-22 05:11:37,819 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 05:11:37,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:11:37,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 42 conjunts are in the unsatisfiable core [2020-12-22 05:11:37,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:11:38,402 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 05:11:38,428 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 05:11:38,435 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 05:11:38,454 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 05:11:38,460 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 05:11:38,482 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 05:11:38,516 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 05:11:38,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132900399] [2020-12-22 05:11:38,517 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:11:38,517 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1985493327] [2020-12-22 05:11:38,517 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:11:38,517 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-12-22 05:11:38,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729940929] [2020-12-22 05:11:38,518 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-12-22 05:11:38,518 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:11:38,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-12-22 05:11:38,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2020-12-22 05:11:38,519 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand 16 states. [2020-12-22 05:11:39,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:11:39,000 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2020-12-22 05:11:39,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-12-22 05:11:39,003 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 22 [2020-12-22 05:11:39,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:11:39,004 INFO L225 Difference]: With dead ends: 37 [2020-12-22 05:11:39,004 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 05:11:39,005 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=138, Invalid=324, Unknown=0, NotChecked=0, Total=462 [2020-12-22 05:11:39,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 05:11:39,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 05:11:39,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 05:11:39,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 05:11:39,005 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2020-12-22 05:11:39,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:11:39,006 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 05:11:39,006 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-12-22 05:11:39,006 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 05:11:39,006 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 05:11:39,219 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:11:39,223 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-22 05:11:39,679 INFO L189 CegarLoopUtils]: For program point L35-2(lines 35 52) no Hoare annotation was computed. [2020-12-22 05:11:39,679 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2020-12-22 05:11:39,679 INFO L189 CegarLoopUtils]: For program point L11(lines 11 14) no Hoare annotation was computed. [2020-12-22 05:11:39,680 INFO L185 CegarLoopUtils]: At program point L11-2(lines 10 16) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 1) (<= 1 ULTIMATE.start_main_~y~0) (<= ULTIMATE.start_main_~y~0 1) (= ULTIMATE.start_main_~r~0 0) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~p~0 1) (= ULTIMATE.start_main_~a~0 (+ (* ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~x~0) (* ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~y~0))) (= ULTIMATE.start_main_~s~0 1) (<= 1 ULTIMATE.start_main_~x~0) (= ULTIMATE.start_main_~q~0 0) (= ULTIMATE.start_assume_abort_if_not_~cond 1) (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0)) [2020-12-22 05:11:39,680 INFO L189 CegarLoopUtils]: For program point L11-3(lines 11 14) no Hoare annotation was computed. [2020-12-22 05:11:39,680 INFO L185 CegarLoopUtils]: At program point L11-5(lines 10 16) the Hoare annotation is: (let ((.cse0 (+ (* ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~x~0) (* ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~y~0)))) (and (<= ULTIMATE.start_main_~x~0 1) (<= 1 ULTIMATE.start_main_~y~0) (<= ULTIMATE.start_main_~y~0 1) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~p~0 1) (= ULTIMATE.start_main_~a~0 .cse0) (= ULTIMATE.start_main_~s~0 1) (<= 1 ULTIMATE.start_main_~x~0) (= ULTIMATE.start_main_~q~0 0) (= ULTIMATE.start_assume_abort_if_not_~cond 1) (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0) (= ULTIMATE.start_main_~x~0 .cse0))) [2020-12-22 05:11:39,680 INFO L189 CegarLoopUtils]: For program point L11-6(lines 11 14) no Hoare annotation was computed. [2020-12-22 05:11:39,681 INFO L185 CegarLoopUtils]: At program point L11-8(lines 40 41) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 1) (<= 1 ULTIMATE.start_main_~y~0) (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_main_~y~0 1) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~a~0 (+ (* ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~x~0) (* ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~y~0))) (= ULTIMATE.start_main_~p~0 1) (= ULTIMATE.start_main_~s~0 1) (<= 1 ULTIMATE.start_main_~x~0) (= ULTIMATE.start_main_~q~0 0) (= ULTIMATE.start_assume_abort_if_not_~cond 1) (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0)) [2020-12-22 05:11:39,681 INFO L189 CegarLoopUtils]: For program point L11-9(lines 11 14) no Hoare annotation was computed. [2020-12-22 05:11:39,681 INFO L185 CegarLoopUtils]: At program point L11-11(lines 10 16) the Hoare annotation is: (let ((.cse0 (+ (* ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~x~0) (* ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~y~0)))) (and (<= 1 ULTIMATE.start_main_~y~0) (<= ULTIMATE.start_main_~y~0 1) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~p~0 1) (= ULTIMATE.start_main_~a~0 .cse0) (= ULTIMATE.start_main_~s~0 1) (= ULTIMATE.start_main_~q~0 0) (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~a~0) (= ULTIMATE.start_assume_abort_if_not_~cond 1) (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0) (= ULTIMATE.start_main_~x~0 .cse0))) [2020-12-22 05:11:39,681 INFO L189 CegarLoopUtils]: For program point L11-12(lines 11 14) no Hoare annotation was computed. [2020-12-22 05:11:39,681 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2020-12-22 05:11:39,681 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-22 05:11:39,682 INFO L185 CegarLoopUtils]: At program point L11-14(lines 10 16) the Hoare annotation is: (and (<= 1 ULTIMATE.start_main_~y~0) (<= ULTIMATE.start_main_~x~0 1) (<= ULTIMATE.start_main_~y~0 1) (= ULTIMATE.start_main_~p~0 1) (= ULTIMATE.start_main_~s~0 1) (<= 1 ULTIMATE.start_main_~x~0) (= ULTIMATE.start_main_~q~0 0) (= ULTIMATE.start_assume_abort_if_not_~cond 1) (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0)) [2020-12-22 05:11:39,682 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-22 05:11:39,682 INFO L189 CegarLoopUtils]: For program point L11-15(lines 11 14) no Hoare annotation was computed. [2020-12-22 05:11:39,682 INFO L185 CegarLoopUtils]: At program point L11-17(lines 10 16) the Hoare annotation is: (and (<= 1 ULTIMATE.start_main_~y~0) (<= ULTIMATE.start_main_~x~0 1) (<= ULTIMATE.start_main_~y~0 1) (= ULTIMATE.start_main_~s~0 1) (<= 1 ULTIMATE.start_main_~x~0) (= ULTIMATE.start_main_~q~0 0) (= ULTIMATE.start_assume_abort_if_not_~cond 1) (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0)) [2020-12-22 05:11:39,682 INFO L189 CegarLoopUtils]: For program point L11-18(lines 11 14) no Hoare annotation was computed. [2020-12-22 05:11:39,682 INFO L192 CegarLoopUtils]: At program point L11-20(lines 10 16) the Hoare annotation is: true [2020-12-22 05:11:39,683 INFO L189 CegarLoopUtils]: For program point L12(lines 12 13) no Hoare annotation was computed. [2020-12-22 05:11:39,683 INFO L189 CegarLoopUtils]: For program point L12-1(lines 12 13) no Hoare annotation was computed. [2020-12-22 05:11:39,683 INFO L189 CegarLoopUtils]: For program point L12-2(lines 12 13) no Hoare annotation was computed. [2020-12-22 05:11:39,683 INFO L189 CegarLoopUtils]: For program point L12-3(lines 12 13) no Hoare annotation was computed. [2020-12-22 05:11:39,683 INFO L189 CegarLoopUtils]: For program point L12-4(lines 12 13) no Hoare annotation was computed. [2020-12-22 05:11:39,683 INFO L189 CegarLoopUtils]: For program point L12-5(lines 12 13) no Hoare annotation was computed. [2020-12-22 05:11:39,683 INFO L189 CegarLoopUtils]: For program point L12-6(lines 12 13) no Hoare annotation was computed. [2020-12-22 05:11:39,683 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2020-12-22 05:11:39,684 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2020-12-22 05:11:39,684 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2020-12-22 05:11:39,684 INFO L189 CegarLoopUtils]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-12-22 05:11:39,684 INFO L189 CegarLoopUtils]: For program point L7-1(lines 7 9) no Hoare annotation was computed. [2020-12-22 05:11:39,684 INFO L189 CegarLoopUtils]: For program point L7-2(lines 7 9) no Hoare annotation was computed. [2020-12-22 05:11:39,684 INFO L189 CegarLoopUtils]: For program point L7-3(lines 7 9) no Hoare annotation was computed. [2020-12-22 05:11:39,684 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-22 05:11:39,685 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2020-12-22 05:11:39,685 INFO L189 CegarLoopUtils]: For program point L8(line 8) no Hoare annotation was computed. [2020-12-22 05:11:39,685 INFO L189 CegarLoopUtils]: For program point L8-2(line 8) no Hoare annotation was computed. [2020-12-22 05:11:39,685 INFO L189 CegarLoopUtils]: For program point L8-4(line 8) no Hoare annotation was computed. [2020-12-22 05:11:39,685 INFO L189 CegarLoopUtils]: For program point L8-6(line 8) no Hoare annotation was computed. [2020-12-22 05:11:39,685 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-22 05:11:39,685 INFO L192 CegarLoopUtils]: At program point L58(lines 18 59) the Hoare annotation is: true [2020-12-22 05:11:39,686 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2020-12-22 05:11:39,686 INFO L189 CegarLoopUtils]: For program point L43(lines 43 51) no Hoare annotation was computed. [2020-12-22 05:11:39,686 INFO L185 CegarLoopUtils]: At program point L43-2(lines 35 52) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 1) (<= 1 ULTIMATE.start_main_~y~0) (<= ULTIMATE.start_main_~y~0 1) (= ULTIMATE.start_main_~r~0 0) (= ULTIMATE.start_main_~p~0 1) (= ULTIMATE.start_main_~a~0 (+ (* ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~x~0) (* ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~y~0))) (= ULTIMATE.start_main_~s~0 1) (<= 1 ULTIMATE.start_main_~x~0) (= ULTIMATE.start_main_~q~0 0) (= ULTIMATE.start_assume_abort_if_not_~cond 1) (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0)) [2020-12-22 05:11:39,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 05:11:39 BoogieIcfgContainer [2020-12-22 05:11:39,710 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 05:11:39,710 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 05:11:39,710 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 05:11:39,711 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 05:11:39,711 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:11:32" (3/4) ... [2020-12-22 05:11:39,714 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 05:11:39,727 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2020-12-22 05:11:39,727 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-22 05:11:39,728 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 05:11:39,728 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 05:11:39,795 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/nla-digbench-scaling/egcd-ll_valuebound1.c-witness.graphml [2020-12-22 05:11:39,795 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 05:11:39,797 INFO L168 Benchmark]: Toolchain (without parser) took 8001.02 ms. Allocated memory was 153.1 MB in the beginning and 195.0 MB in the end (delta: 41.9 MB). Free memory was 128.7 MB in the beginning and 70.0 MB in the end (delta: 58.7 MB). Peak memory consumption was 101.0 MB. Max. memory is 8.0 GB. [2020-12-22 05:11:39,797 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 153.1 MB. Free memory is still 125.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 05:11:39,798 INFO L168 Benchmark]: CACSL2BoogieTranslator took 358.50 ms. Allocated memory is still 153.1 MB. Free memory was 128.3 MB in the beginning and 117.9 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-12-22 05:11:39,801 INFO L168 Benchmark]: Boogie Procedure Inliner took 85.68 ms. Allocated memory is still 153.1 MB. Free memory was 117.7 MB in the beginning and 116.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 05:11:39,801 INFO L168 Benchmark]: Boogie Preprocessor took 47.90 ms. Allocated memory is still 153.1 MB. Free memory was 116.1 MB in the beginning and 114.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 05:11:39,802 INFO L168 Benchmark]: RCFGBuilder took 678.55 ms. Allocated memory is still 153.1 MB. Free memory was 114.9 MB in the beginning and 128.8 MB in the end (delta: -14.0 MB). Peak memory consumption was 13.9 MB. Max. memory is 8.0 GB. [2020-12-22 05:11:39,802 INFO L168 Benchmark]: TraceAbstraction took 6733.20 ms. Allocated memory was 153.1 MB in the beginning and 195.0 MB in the end (delta: 41.9 MB). Free memory was 128.8 MB in the beginning and 73.2 MB in the end (delta: 55.7 MB). Peak memory consumption was 98.7 MB. Max. memory is 8.0 GB. [2020-12-22 05:11:39,803 INFO L168 Benchmark]: Witness Printer took 84.73 ms. Allocated memory is still 195.0 MB. Free memory was 73.2 MB in the beginning and 70.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-22 05:11:39,808 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 153.1 MB. Free memory is still 125.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 358.50 ms. Allocated memory is still 153.1 MB. Free memory was 128.3 MB in the beginning and 117.9 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 85.68 ms. Allocated memory is still 153.1 MB. Free memory was 117.7 MB in the beginning and 116.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 47.90 ms. Allocated memory is still 153.1 MB. Free memory was 116.1 MB in the beginning and 114.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 678.55 ms. Allocated memory is still 153.1 MB. Free memory was 114.9 MB in the beginning and 128.8 MB in the end (delta: -14.0 MB). Peak memory consumption was 13.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6733.20 ms. Allocated memory was 153.1 MB in the beginning and 195.0 MB in the end (delta: 41.9 MB). Free memory was 128.8 MB in the beginning and 73.2 MB in the end (delta: 55.7 MB). Peak memory consumption was 98.7 MB. Max. memory is 8.0 GB. * Witness Printer took 84.73 ms. Allocated memory is still 195.0 MB. Free memory was 73.2 MB in the beginning and 70.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: ((((((1 <= y && x <= 1) && y <= 1) && s == 1) && 1 <= x) && q == 0) && cond == 1) && b == y - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: (((((((((1 <= y && y <= 1) && 1 == cond) && p == 1) && a == p * x + r * y) && s == 1) && q == 0) && b == a) && cond == 1) && b == y) && x == p * x + r * y - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: ((((((((((x <= 1 && 1 <= y) && y <= 1) && 1 == cond) && p == 1) && a == p * x + r * y) && s == 1) && 1 <= x) && q == 0) && cond == 1) && b == y) && x == p * x + r * y - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: (((((((1 <= y && x <= 1) && y <= 1) && p == 1) && s == 1) && 1 <= x) && q == 0) && cond == 1) && b == y - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: ((((((((((x <= 1 && 1 <= y) && a == x) && y <= 1) && 1 == cond) && a == p * x + r * y) && p == 1) && s == 1) && 1 <= x) && q == 0) && cond == 1) && b == y - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: ((((((((((x <= 1 && 1 <= y) && y <= 1) && r == 0) && 1 == cond) && p == 1) && a == p * x + r * y) && s == 1) && 1 <= x) && q == 0) && cond == 1) && b == y - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: (((((((((x <= 1 && 1 <= y) && y <= 1) && r == 0) && p == 1) && a == p * x + r * y) && s == 1) && 1 <= x) && q == 0) && cond == 1) && b == y - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 44 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.1s, OverallIterations: 7, TraceHistogramMax: 2, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 172 SDtfs, 951 SDslu, 194 SDs, 0 SdLazy, 374 SolverSat, 96 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 130 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=70occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 50 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 18 NumberOfFragments, 276 HoareAnnotationTreeSize, 9 FomulaSimplifications, 406 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 9 FomulaSimplificationsInter, 57 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 121 NumberOfCodeBlocks, 121 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 114 ConstructedInterpolants, 0 QuantifiedInterpolants, 20260 SizeOfPredicates, 65 NumberOfNonLiveVariables, 545 ConjunctsInSsa, 145 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 2/2 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...