/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/hard2_valuebound100.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 05:31:15,278 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 05:31:15,281 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 05:31:15,317 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 05:31:15,318 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 05:31:15,320 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 05:31:15,322 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 05:31:15,324 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 05:31:15,327 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 05:31:15,329 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 05:31:15,330 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 05:31:15,332 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2020-12-22 05:31:15,389 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 05:31:15,390 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 05:31:15,391 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 05:31:15,392 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 05:31:15,419 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 05:31:15,419 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 05:31:15,421 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 05:31:15,421 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 05:31:15,422 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 05:31:15,422 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 05:31:15,422 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 05:31:15,423 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 05:31:15,423 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 05:31:15,423 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 05:31:15,423 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 05:31:15,424 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 05:31:15,424 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 05:31:15,424 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 05:31:15,425 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 05:31:15,425 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 05:31:15,425 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 05:31:15,425 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 05:31:15,426 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 05:31:15,426 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 05:31:15,426 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 05:31:15,427 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 05:31:15,427 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 05:31:15,427 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 05:31:15,427 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 05:31:15,428 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 05:31:15,786 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 05:31:15,834 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 05:31:15,837 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 05:31:15,838 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 05:31:15,839 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 05:31:15,840 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound100.c [2020-12-22 05:31:15,934 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b0ed320d/07a559dbe948410d88782b583d9aee40/FLAGd72078fba [2020-12-22 05:31:16,498 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 05:31:16,498 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound100.c [2020-12-22 05:31:16,513 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b0ed320d/07a559dbe948410d88782b583d9aee40/FLAGd72078fba [2020-12-22 05:31:16,845 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b0ed320d/07a559dbe948410d88782b583d9aee40 [2020-12-22 05:31:16,853 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 05:31:16,857 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 05:31:16,860 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 05:31:16,865 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 05:31:16,870 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 05:31:16,871 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 05:31:16" (1/1) ... [2020-12-22 05:31:16,873 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 05:31:16, skipping insertion in model container [2020-12-22 05:31:16,874 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 05:31:16" (1/1) ... [2020-12-22 05:31:16,882 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 05:31:16,903 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 05:31:17,049 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/hard2_valuebound100.c[526,539] [2020-12-22 05:31:17,070 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 05:31:17,083 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 05:31:17,102 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/hard2_valuebound100.c[526,539] [2020-12-22 05:31:17,128 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 05:31:17,149 INFO L208 MainTranslator]: Completed translation [2020-12-22 05:31:17,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:31:17 WrapperNode [2020-12-22 05:31:17,151 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 05:31:17,154 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 05:31:17,155 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 05:31:17,155 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 05:31:17,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:31:17" (1/1) ... [2020-12-22 05:31:17,178 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:31:17" (1/1) ... [2020-12-22 05:31:17,218 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 05:31:17,226 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 05:31:17,227 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 05:31:17,227 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 05:31:17,239 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:31:17" (1/1) ... [2020-12-22 05:31:17,239 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:31:17" (1/1) ... [2020-12-22 05:31:17,241 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:31:17" (1/1) ... [2020-12-22 05:31:17,241 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:31:17" (1/1) ... [2020-12-22 05:31:17,245 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:31:17" (1/1) ... [2020-12-22 05:31:17,251 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:31:17" (1/1) ... [2020-12-22 05:31:17,253 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:31:17" (1/1) ... [2020-12-22 05:31:17,255 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 05:31:17,257 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 05:31:17,257 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 05:31:17,257 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 05:31:17,258 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:31:17" (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 05:31:17,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 05:31:17,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 05:31:17,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 05:31:17,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 05:31:17,922 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 05:31:17,922 INFO L299 CfgBuilder]: Removed 22 assume(true) statements. [2020-12-22 05:31:17,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:31:17 BoogieIcfgContainer [2020-12-22 05:31:17,925 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 05:31:17,927 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 05:31:17,927 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 05:31:17,931 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 05:31:17,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 05:31:16" (1/3) ... [2020-12-22 05:31:17,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3435f0fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 05:31:17, skipping insertion in model container [2020-12-22 05:31:17,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:31:17" (2/3) ... [2020-12-22 05:31:17,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3435f0fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 05:31:17, skipping insertion in model container [2020-12-22 05:31:17,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:31:17" (3/3) ... [2020-12-22 05:31:17,935 INFO L111 eAbstractionObserver]: Analyzing ICFG hard2_valuebound100.c [2020-12-22 05:31:17,943 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 05:31:17,949 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2020-12-22 05:31:17,970 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-12-22 05:31:18,000 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 05:31:18,001 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 05:31:18,001 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 05:31:18,001 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 05:31:18,001 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 05:31:18,001 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 05:31:18,002 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 05:31:18,002 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 05:31:18,020 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2020-12-22 05:31:18,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-22 05:31:18,026 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:31:18,027 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:31:18,028 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 05:31:18,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:31:18,035 INFO L82 PathProgramCache]: Analyzing trace with hash 1804972333, now seen corresponding path program 1 times [2020-12-22 05:31:18,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:31:18,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177310329] [2020-12-22 05:31:18,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:31:18,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:31:18,207 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 05:31:18,208 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177310329] [2020-12-22 05:31:18,208 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:31:18,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 05:31:18,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267661364] [2020-12-22 05:31:18,214 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 05:31:18,215 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:31:18,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 05:31:18,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 05:31:18,233 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 2 states. [2020-12-22 05:31:18,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:31:18,256 INFO L93 Difference]: Finished difference Result 75 states and 102 transitions. [2020-12-22 05:31:18,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 05:31:18,258 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-12-22 05:31:18,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:31:18,267 INFO L225 Difference]: With dead ends: 75 [2020-12-22 05:31:18,267 INFO L226 Difference]: Without dead ends: 35 [2020-12-22 05:31:18,271 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 05:31:18,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-12-22 05:31:18,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-12-22 05:31:18,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-12-22 05:31:18,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2020-12-22 05:31:18,312 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 7 [2020-12-22 05:31:18,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:31:18,313 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2020-12-22 05:31:18,313 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 05:31:18,313 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2020-12-22 05:31:18,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-22 05:31:18,314 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:31:18,314 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:31:18,314 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 05:31:18,315 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 05:31:18,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:31:18,316 INFO L82 PathProgramCache]: Analyzing trace with hash 1806819375, now seen corresponding path program 1 times [2020-12-22 05:31:18,316 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:31:18,317 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281762337] [2020-12-22 05:31:18,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:31:18,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:31:18,409 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 05:31:18,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281762337] [2020-12-22 05:31:18,410 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:31:18,410 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 05:31:18,410 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627276862] [2020-12-22 05:31:18,412 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 05:31:18,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:31:18,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 05:31:18,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 05:31:18,414 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand 4 states. [2020-12-22 05:31:18,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:31:18,584 INFO L93 Difference]: Finished difference Result 54 states and 57 transitions. [2020-12-22 05:31:18,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 05:31:18,585 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-12-22 05:31:18,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:31:18,589 INFO L225 Difference]: With dead ends: 54 [2020-12-22 05:31:18,589 INFO L226 Difference]: Without dead ends: 52 [2020-12-22 05:31:18,591 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 05:31:18,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-12-22 05:31:18,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 33. [2020-12-22 05:31:18,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-12-22 05:31:18,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2020-12-22 05:31:18,609 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 7 [2020-12-22 05:31:18,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:31:18,610 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2020-12-22 05:31:18,610 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 05:31:18,611 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2020-12-22 05:31:18,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-22 05:31:18,612 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:31:18,612 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:31:18,612 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 05:31:18,613 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 05:31:18,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:31:18,614 INFO L82 PathProgramCache]: Analyzing trace with hash 1186787538, now seen corresponding path program 1 times [2020-12-22 05:31:18,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:31:18,615 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843047323] [2020-12-22 05:31:18,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:31:18,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:31:18,711 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 05:31:18,711 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843047323] [2020-12-22 05:31:18,712 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:31:18,712 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 05:31:18,712 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189351782] [2020-12-22 05:31:18,713 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 05:31:18,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:31:18,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 05:31:18,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 05:31:18,714 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand 4 states. [2020-12-22 05:31:18,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:31:18,825 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2020-12-22 05:31:18,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 05:31:18,826 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-12-22 05:31:18,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:31:18,827 INFO L225 Difference]: With dead ends: 52 [2020-12-22 05:31:18,827 INFO L226 Difference]: Without dead ends: 50 [2020-12-22 05:31:18,828 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 05:31:18,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-12-22 05:31:18,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 31. [2020-12-22 05:31:18,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-12-22 05:31:18,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2020-12-22 05:31:18,835 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 9 [2020-12-22 05:31:18,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:31:18,836 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2020-12-22 05:31:18,836 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 05:31:18,836 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2020-12-22 05:31:18,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-22 05:31:18,837 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:31:18,837 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:31:18,837 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 05:31:18,838 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 05:31:18,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:31:18,839 INFO L82 PathProgramCache]: Analyzing trace with hash -1958320619, now seen corresponding path program 1 times [2020-12-22 05:31:18,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:31:18,839 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112416772] [2020-12-22 05:31:18,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:31:18,855 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:31:18,856 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [321247020] [2020-12-22 05:31:18,856 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 05:31:18,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:31:18,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 21 conjunts are in the unsatisfiable core [2020-12-22 05:31:18,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:31:19,092 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 05:31:19,092 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112416772] [2020-12-22 05:31:19,093 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:31:19,093 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [321247020] [2020-12-22 05:31:19,093 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:31:19,093 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 05:31:19,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690163737] [2020-12-22 05:31:19,094 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 05:31:19,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:31:19,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 05:31:19,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-22 05:31:19,096 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. Second operand 6 states. [2020-12-22 05:31:19,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:31:19,278 INFO L93 Difference]: Finished difference Result 72 states and 78 transitions. [2020-12-22 05:31:19,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 05:31:19,279 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-12-22 05:31:19,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:31:19,280 INFO L225 Difference]: With dead ends: 72 [2020-12-22 05:31:19,280 INFO L226 Difference]: Without dead ends: 50 [2020-12-22 05:31:19,281 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-22 05:31:19,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-12-22 05:31:19,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 45. [2020-12-22 05:31:19,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-12-22 05:31:19,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2020-12-22 05:31:19,295 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 11 [2020-12-22 05:31:19,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:31:19,296 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2020-12-22 05:31:19,296 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 05:31:19,296 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2020-12-22 05:31:19,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-22 05:31:19,297 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:31:19,297 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:31:19,512 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:31:19,513 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 05:31:19,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:31:19,514 INFO L82 PathProgramCache]: Analyzing trace with hash -1783857492, now seen corresponding path program 1 times [2020-12-22 05:31:19,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:31:19,515 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458980587] [2020-12-22 05:31:19,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:31:19,551 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:31:19,554 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1170922949] [2020-12-22 05:31:19,555 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 05:31:19,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:31:19,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 17 conjunts are in the unsatisfiable core [2020-12-22 05:31:19,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:31:19,764 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 05:31:19,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458980587] [2020-12-22 05:31:19,767 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:31:19,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1170922949] [2020-12-22 05:31:19,768 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:31:19,768 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 05:31:19,770 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443532550] [2020-12-22 05:31:19,771 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 05:31:19,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:31:19,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 05:31:19,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 05:31:19,773 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand 5 states. [2020-12-22 05:31:19,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:31:19,947 INFO L93 Difference]: Finished difference Result 63 states and 68 transitions. [2020-12-22 05:31:19,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 05:31:19,948 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-12-22 05:31:19,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:31:19,949 INFO L225 Difference]: With dead ends: 63 [2020-12-22 05:31:19,949 INFO L226 Difference]: Without dead ends: 52 [2020-12-22 05:31:19,950 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 05:31:19,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-12-22 05:31:19,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 46. [2020-12-22 05:31:19,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-12-22 05:31:19,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 51 transitions. [2020-12-22 05:31:19,958 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 51 transitions. Word has length 14 [2020-12-22 05:31:19,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:31:19,958 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 51 transitions. [2020-12-22 05:31:19,958 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 05:31:19,959 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 51 transitions. [2020-12-22 05:31:19,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-22 05:31:19,959 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:31:19,959 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:31:20,174 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:31:20,175 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 05:31:20,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:31:20,177 INFO L82 PathProgramCache]: Analyzing trace with hash 1907209632, now seen corresponding path program 1 times [2020-12-22 05:31:20,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:31:20,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681358639] [2020-12-22 05:31:20,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:31:20,193 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:31:20,194 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1542974356] [2020-12-22 05:31:20,194 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 05:31:20,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:31:20,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 27 conjunts are in the unsatisfiable core [2020-12-22 05:31:20,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:31:20,436 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 05:31:20,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681358639] [2020-12-22 05:31:20,437 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:31:20,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1542974356] [2020-12-22 05:31:20,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-22 05:31:20,438 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-12-22 05:31:20,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614432056] [2020-12-22 05:31:20,438 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 05:31:20,439 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:31:20,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 05:31:20,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-12-22 05:31:20,440 INFO L87 Difference]: Start difference. First operand 46 states and 51 transitions. Second operand 7 states. [2020-12-22 05:31:20,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:31:20,751 INFO L93 Difference]: Finished difference Result 98 states and 113 transitions. [2020-12-22 05:31:20,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 05:31:20,753 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-12-22 05:31:20,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:31:20,756 INFO L225 Difference]: With dead ends: 98 [2020-12-22 05:31:20,756 INFO L226 Difference]: Without dead ends: 61 [2020-12-22 05:31:20,765 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-12-22 05:31:20,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-12-22 05:31:20,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 59. [2020-12-22 05:31:20,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-12-22 05:31:20,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 65 transitions. [2020-12-22 05:31:20,782 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 65 transitions. Word has length 18 [2020-12-22 05:31:20,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:31:20,783 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 65 transitions. [2020-12-22 05:31:20,783 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 05:31:20,783 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 65 transitions. [2020-12-22 05:31:20,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-22 05:31:20,789 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:31:20,789 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2020-12-22 05:31:20,995 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:31:20,995 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 05:31:20,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:31:20,996 INFO L82 PathProgramCache]: Analyzing trace with hash -1115495499, now seen corresponding path program 2 times [2020-12-22 05:31:20,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:31:20,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433459531] [2020-12-22 05:31:20,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:31:21,027 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:31:21,030 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1390866871] [2020-12-22 05:31:21,031 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 05:31:21,118 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-22 05:31:21,118 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 05:31:21,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 29 conjunts are in the unsatisfiable core [2020-12-22 05:31:21,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:31:21,303 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:31:21,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433459531] [2020-12-22 05:31:21,304 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:31:21,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1390866871] [2020-12-22 05:31:21,304 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-22 05:31:21,304 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-12-22 05:31:21,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407742171] [2020-12-22 05:31:21,305 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 05:31:21,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:31:21,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 05:31:21,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-22 05:31:21,306 INFO L87 Difference]: Start difference. First operand 59 states and 65 transitions. Second operand 8 states. [2020-12-22 05:31:21,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:31:21,616 INFO L93 Difference]: Finished difference Result 103 states and 117 transitions. [2020-12-22 05:31:21,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-22 05:31:21,617 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2020-12-22 05:31:21,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:31:21,619 INFO L225 Difference]: With dead ends: 103 [2020-12-22 05:31:21,620 INFO L226 Difference]: Without dead ends: 89 [2020-12-22 05:31:21,620 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-12-22 05:31:21,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-12-22 05:31:21,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 82. [2020-12-22 05:31:21,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-12-22 05:31:21,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 91 transitions. [2020-12-22 05:31:21,633 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 91 transitions. Word has length 25 [2020-12-22 05:31:21,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:31:21,633 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 91 transitions. [2020-12-22 05:31:21,634 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 05:31:21,634 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 91 transitions. [2020-12-22 05:31:21,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-22 05:31:21,635 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:31:21,635 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] [2020-12-22 05:31:21,849 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:31:21,850 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 05:31:21,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:31:21,851 INFO L82 PathProgramCache]: Analyzing trace with hash 115055918, now seen corresponding path program 1 times [2020-12-22 05:31:21,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:31:21,852 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440760498] [2020-12-22 05:31:21,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:31:21,865 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:31:21,865 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1282999196] [2020-12-22 05:31:21,865 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 05:31:21,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:31:21,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 35 conjunts are in the unsatisfiable core [2020-12-22 05:31:21,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:31:22,111 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 05:31:22,112 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440760498] [2020-12-22 05:31:22,112 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:31:22,112 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1282999196] [2020-12-22 05:31:22,113 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-22 05:31:22,113 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-12-22 05:31:22,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782152719] [2020-12-22 05:31:22,113 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 05:31:22,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:31:22,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 05:31:22,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-12-22 05:31:22,115 INFO L87 Difference]: Start difference. First operand 82 states and 91 transitions. Second operand 7 states. [2020-12-22 05:31:22,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:31:22,287 INFO L93 Difference]: Finished difference Result 101 states and 111 transitions. [2020-12-22 05:31:22,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 05:31:22,288 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2020-12-22 05:31:22,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:31:22,289 INFO L225 Difference]: With dead ends: 101 [2020-12-22 05:31:22,289 INFO L226 Difference]: Without dead ends: 99 [2020-12-22 05:31:22,290 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-12-22 05:31:22,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-12-22 05:31:22,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 88. [2020-12-22 05:31:22,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-12-22 05:31:22,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 100 transitions. [2020-12-22 05:31:22,301 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 100 transitions. Word has length 27 [2020-12-22 05:31:22,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:31:22,302 INFO L481 AbstractCegarLoop]: Abstraction has 88 states and 100 transitions. [2020-12-22 05:31:22,302 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 05:31:22,302 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 100 transitions. [2020-12-22 05:31:22,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-12-22 05:31:22,303 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:31:22,303 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] [2020-12-22 05:31:22,516 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:31:22,517 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 05:31:22,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:31:22,518 INFO L82 PathProgramCache]: Analyzing trace with hash -1100255215, now seen corresponding path program 1 times [2020-12-22 05:31:22,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:31:22,519 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57927871] [2020-12-22 05:31:22,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:31:22,532 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:31:22,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1540155199] [2020-12-22 05:31:22,533 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 05:31:22,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:31:22,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 31 conjunts are in the unsatisfiable core [2020-12-22 05:31:22,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:31:22,716 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 05:31:22,717 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57927871] [2020-12-22 05:31:22,717 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:31:22,717 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1540155199] [2020-12-22 05:31:22,717 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-22 05:31:22,717 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-12-22 05:31:22,718 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096138126] [2020-12-22 05:31:22,718 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 05:31:22,718 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:31:22,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 05:31:22,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-12-22 05:31:22,721 INFO L87 Difference]: Start difference. First operand 88 states and 100 transitions. Second operand 8 states. [2020-12-22 05:31:22,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:31:22,895 INFO L93 Difference]: Finished difference Result 117 states and 132 transitions. [2020-12-22 05:31:22,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 05:31:22,895 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 29 [2020-12-22 05:31:22,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:31:22,896 INFO L225 Difference]: With dead ends: 117 [2020-12-22 05:31:22,896 INFO L226 Difference]: Without dead ends: 91 [2020-12-22 05:31:22,897 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-12-22 05:31:22,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-12-22 05:31:22,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 89. [2020-12-22 05:31:22,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-12-22 05:31:22,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 98 transitions. [2020-12-22 05:31:22,908 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 98 transitions. Word has length 29 [2020-12-22 05:31:22,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:31:22,908 INFO L481 AbstractCegarLoop]: Abstraction has 89 states and 98 transitions. [2020-12-22 05:31:22,908 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 05:31:22,909 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 98 transitions. [2020-12-22 05:31:22,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-22 05:31:22,910 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:31:22,910 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:31:23,124 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:31:23,125 INFO L429 AbstractCegarLoop]: === Iteration 10 === [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 05:31:23,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:31:23,126 INFO L82 PathProgramCache]: Analyzing trace with hash 1492250324, now seen corresponding path program 1 times [2020-12-22 05:31:23,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:31:23,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642428583] [2020-12-22 05:31:23,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:31:23,138 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:31:23,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [689280914] [2020-12-22 05:31:23,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:31:23,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:31:23,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 37 conjunts are in the unsatisfiable core [2020-12-22 05:31:23,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:31:23,354 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:31:23,354 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642428583] [2020-12-22 05:31:23,354 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:31:23,355 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [689280914] [2020-12-22 05:31:23,355 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-22 05:31:23,355 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-12-22 05:31:23,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557637194] [2020-12-22 05:31:23,356 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 05:31:23,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:31:23,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 05:31:23,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-22 05:31:23,357 INFO L87 Difference]: Start difference. First operand 89 states and 98 transitions. Second operand 8 states. [2020-12-22 05:31:23,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:31:23,535 INFO L93 Difference]: Finished difference Result 91 states and 99 transitions. [2020-12-22 05:31:23,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 05:31:23,538 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2020-12-22 05:31:23,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:31:23,539 INFO L225 Difference]: With dead ends: 91 [2020-12-22 05:31:23,539 INFO L226 Difference]: Without dead ends: 76 [2020-12-22 05:31:23,540 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-12-22 05:31:23,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-12-22 05:31:23,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2020-12-22 05:31:23,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-12-22 05:31:23,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 84 transitions. [2020-12-22 05:31:23,548 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 84 transitions. Word has length 32 [2020-12-22 05:31:23,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:31:23,549 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 84 transitions. [2020-12-22 05:31:23,549 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 05:31:23,549 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 84 transitions. [2020-12-22 05:31:23,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-22 05:31:23,550 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:31:23,550 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1] [2020-12-22 05:31:23,763 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-12-22 05:31:23,764 INFO L429 AbstractCegarLoop]: === Iteration 11 === [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 05:31:23,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:31:23,765 INFO L82 PathProgramCache]: Analyzing trace with hash 1670816768, now seen corresponding path program 3 times [2020-12-22 05:31:23,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:31:23,766 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233856678] [2020-12-22 05:31:23,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:31:23,778 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:31:23,778 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [681523780] [2020-12-22 05:31:23,778 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:31:23,831 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-12-22 05:31:23,832 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 05:31:23,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 28 conjunts are in the unsatisfiable core [2020-12-22 05:31:23,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:31:24,033 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 7 proven. 15 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-12-22 05:31:24,033 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233856678] [2020-12-22 05:31:24,033 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:31:24,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [681523780] [2020-12-22 05:31:24,034 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-22 05:31:24,034 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-12-22 05:31:24,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776185501] [2020-12-22 05:31:24,034 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 05:31:24,035 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:31:24,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 05:31:24,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-12-22 05:31:24,036 INFO L87 Difference]: Start difference. First operand 76 states and 84 transitions. Second operand 9 states. [2020-12-22 05:31:24,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:31:24,291 INFO L93 Difference]: Finished difference Result 94 states and 101 transitions. [2020-12-22 05:31:24,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 05:31:24,291 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 32 [2020-12-22 05:31:24,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:31:24,292 INFO L225 Difference]: With dead ends: 94 [2020-12-22 05:31:24,292 INFO L226 Difference]: Without dead ends: 84 [2020-12-22 05:31:24,293 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-12-22 05:31:24,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-12-22 05:31:24,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 74. [2020-12-22 05:31:24,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-12-22 05:31:24,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 81 transitions. [2020-12-22 05:31:24,306 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 81 transitions. Word has length 32 [2020-12-22 05:31:24,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:31:24,306 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 81 transitions. [2020-12-22 05:31:24,306 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 05:31:24,307 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 81 transitions. [2020-12-22 05:31:24,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-12-22 05:31:24,308 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:31:24,309 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:31:24,524 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2020-12-22 05:31:24,525 INFO L429 AbstractCegarLoop]: === Iteration 12 === [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 05:31:24,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:31:24,526 INFO L82 PathProgramCache]: Analyzing trace with hash 1996519097, now seen corresponding path program 2 times [2020-12-22 05:31:24,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:31:24,527 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154867092] [2020-12-22 05:31:24,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:31:24,550 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:31:24,551 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1424952272] [2020-12-22 05:31:24,551 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 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:31:24,611 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-22 05:31:24,611 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 05:31:24,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 39 conjunts are in the unsatisfiable core [2020-12-22 05:31:24,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:31:24,796 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:31:24,796 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154867092] [2020-12-22 05:31:24,797 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:31:24,797 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1424952272] [2020-12-22 05:31:24,797 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-22 05:31:24,797 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-12-22 05:31:24,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442716325] [2020-12-22 05:31:24,798 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 05:31:24,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:31:24,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 05:31:24,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-12-22 05:31:24,799 INFO L87 Difference]: Start difference. First operand 74 states and 81 transitions. Second operand 8 states. [2020-12-22 05:31:25,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:31:25,104 INFO L93 Difference]: Finished difference Result 133 states and 147 transitions. [2020-12-22 05:31:25,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 05:31:25,105 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2020-12-22 05:31:25,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:31:25,109 INFO L225 Difference]: With dead ends: 133 [2020-12-22 05:31:25,109 INFO L226 Difference]: Without dead ends: 98 [2020-12-22 05:31:25,109 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-12-22 05:31:25,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-12-22 05:31:25,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 86. [2020-12-22 05:31:25,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-12-22 05:31:25,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 95 transitions. [2020-12-22 05:31:25,126 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 95 transitions. Word has length 34 [2020-12-22 05:31:25,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:31:25,126 INFO L481 AbstractCegarLoop]: Abstraction has 86 states and 95 transitions. [2020-12-22 05:31:25,126 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 05:31:25,126 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 95 transitions. [2020-12-22 05:31:25,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-12-22 05:31:25,136 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:31:25,136 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:31:25,350 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:31:25,351 INFO L429 AbstractCegarLoop]: === Iteration 13 === [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 05:31:25,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:31:25,352 INFO L82 PathProgramCache]: Analyzing trace with hash 1415019748, now seen corresponding path program 1 times [2020-12-22 05:31:25,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:31:25,353 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646980746] [2020-12-22 05:31:25,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:31:25,373 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:31:25,374 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2018445814] [2020-12-22 05:31:25,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:31:25,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:31:25,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-22 05:31:25,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:31:25,602 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-22 05:31:25,603 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646980746] [2020-12-22 05:31:25,603 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:31:25,603 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2018445814] [2020-12-22 05:31:25,603 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:31:25,603 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 05:31:25,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337526896] [2020-12-22 05:31:25,604 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 05:31:25,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:31:25,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 05:31:25,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-22 05:31:25,605 INFO L87 Difference]: Start difference. First operand 86 states and 95 transitions. Second operand 6 states. [2020-12-22 05:31:25,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:31:25,773 INFO L93 Difference]: Finished difference Result 146 states and 161 transitions. [2020-12-22 05:31:25,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 05:31:25,774 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2020-12-22 05:31:25,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:31:25,777 INFO L225 Difference]: With dead ends: 146 [2020-12-22 05:31:25,777 INFO L226 Difference]: Without dead ends: 114 [2020-12-22 05:31:25,779 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 05:31:25,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-12-22 05:31:25,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 73. [2020-12-22 05:31:25,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-12-22 05:31:25,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 79 transitions. [2020-12-22 05:31:25,799 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 79 transitions. Word has length 40 [2020-12-22 05:31:25,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:31:25,799 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 79 transitions. [2020-12-22 05:31:25,799 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 05:31:25,799 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 79 transitions. [2020-12-22 05:31:25,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-12-22 05:31:25,801 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:31:25,802 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:31:26,002 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:31:26,003 INFO L429 AbstractCegarLoop]: === Iteration 14 === [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 05:31:26,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:31:26,005 INFO L82 PathProgramCache]: Analyzing trace with hash 1808046758, now seen corresponding path program 3 times [2020-12-22 05:31:26,005 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:31:26,006 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189455781] [2020-12-22 05:31:26,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:31:26,035 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:31:26,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [51677950] [2020-12-22 05:31:26,036 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:31:26,118 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-12-22 05:31:26,118 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 05:31:26,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 51 conjunts are in the unsatisfiable core [2020-12-22 05:31:26,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:31:26,431 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:31:26,432 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189455781] [2020-12-22 05:31:26,432 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:31:26,432 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [51677950] [2020-12-22 05:31:26,432 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-22 05:31:26,432 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-12-22 05:31:26,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892609382] [2020-12-22 05:31:26,433 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 05:31:26,433 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:31:26,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 05:31:26,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-12-22 05:31:26,434 INFO L87 Difference]: Start difference. First operand 73 states and 79 transitions. Second operand 12 states. [2020-12-22 05:31:27,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:31:27,002 INFO L93 Difference]: Finished difference Result 119 states and 132 transitions. [2020-12-22 05:31:27,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 05:31:27,003 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 40 [2020-12-22 05:31:27,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:31:27,004 INFO L225 Difference]: With dead ends: 119 [2020-12-22 05:31:27,004 INFO L226 Difference]: Without dead ends: 86 [2020-12-22 05:31:27,004 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2020-12-22 05:31:27,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-12-22 05:31:27,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 74. [2020-12-22 05:31:27,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-12-22 05:31:27,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 80 transitions. [2020-12-22 05:31:27,015 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 80 transitions. Word has length 40 [2020-12-22 05:31:27,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:31:27,015 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 80 transitions. [2020-12-22 05:31:27,015 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 05:31:27,015 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 80 transitions. [2020-12-22 05:31:27,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-12-22 05:31:27,016 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:31:27,016 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:31:27,230 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-12-22 05:31:27,231 INFO L429 AbstractCegarLoop]: === Iteration 15 === [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 05:31:27,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:31:27,232 INFO L82 PathProgramCache]: Analyzing trace with hash -1666655538, now seen corresponding path program 4 times [2020-12-22 05:31:27,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:31:27,234 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175669085] [2020-12-22 05:31:27,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:31:27,242 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:31:27,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [286194417] [2020-12-22 05:31:27,243 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:31:27,291 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-12-22 05:31:27,291 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 05:31:27,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 43 conjunts are in the unsatisfiable core [2020-12-22 05:31:27,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:31:27,480 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:31:27,481 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175669085] [2020-12-22 05:31:27,481 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:31:27,481 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [286194417] [2020-12-22 05:31:27,482 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-22 05:31:27,482 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-12-22 05:31:27,482 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966981454] [2020-12-22 05:31:27,482 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 05:31:27,483 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:31:27,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 05:31:27,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 05:31:27,484 INFO L87 Difference]: Start difference. First operand 74 states and 80 transitions. Second operand 9 states. [2020-12-22 05:31:27,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:31:27,842 INFO L93 Difference]: Finished difference Result 107 states and 115 transitions. [2020-12-22 05:31:27,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-22 05:31:27,843 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 41 [2020-12-22 05:31:27,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:31:27,844 INFO L225 Difference]: With dead ends: 107 [2020-12-22 05:31:27,844 INFO L226 Difference]: Without dead ends: 105 [2020-12-22 05:31:27,845 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-12-22 05:31:27,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-12-22 05:31:27,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 81. [2020-12-22 05:31:27,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-12-22 05:31:27,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 88 transitions. [2020-12-22 05:31:27,857 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 88 transitions. Word has length 41 [2020-12-22 05:31:27,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:31:27,857 INFO L481 AbstractCegarLoop]: Abstraction has 81 states and 88 transitions. [2020-12-22 05:31:27,858 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 05:31:27,858 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 88 transitions. [2020-12-22 05:31:27,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-12-22 05:31:27,860 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:31:27,860 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:31:28,075 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-12-22 05:31:28,076 INFO L429 AbstractCegarLoop]: === Iteration 16 === [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 05:31:28,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:31:28,077 INFO L82 PathProgramCache]: Analyzing trace with hash -1928663159, now seen corresponding path program 2 times [2020-12-22 05:31:28,077 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:31:28,078 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411297462] [2020-12-22 05:31:28,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:31:28,091 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:31:28,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [239169202] [2020-12-22 05:31:28,092 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 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:31:28,159 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-22 05:31:28,159 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 05:31:28,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 50 conjunts are in the unsatisfiable core [2020-12-22 05:31:28,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:31:28,552 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:31:28,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411297462] [2020-12-22 05:31:28,553 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:31:28,553 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [239169202] [2020-12-22 05:31:28,553 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-22 05:31:28,553 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-12-22 05:31:28,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508031877] [2020-12-22 05:31:28,554 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-12-22 05:31:28,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:31:28,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-12-22 05:31:28,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2020-12-22 05:31:28,555 INFO L87 Difference]: Start difference. First operand 81 states and 88 transitions. Second operand 13 states. [2020-12-22 05:31:29,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:31:29,160 INFO L93 Difference]: Finished difference Result 122 states and 135 transitions. [2020-12-22 05:31:29,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-12-22 05:31:29,160 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 42 [2020-12-22 05:31:29,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:31:29,161 INFO L225 Difference]: With dead ends: 122 [2020-12-22 05:31:29,161 INFO L226 Difference]: Without dead ends: 96 [2020-12-22 05:31:29,162 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2020-12-22 05:31:29,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2020-12-22 05:31:29,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 94. [2020-12-22 05:31:29,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-12-22 05:31:29,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 101 transitions. [2020-12-22 05:31:29,180 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 101 transitions. Word has length 42 [2020-12-22 05:31:29,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:31:29,180 INFO L481 AbstractCegarLoop]: Abstraction has 94 states and 101 transitions. [2020-12-22 05:31:29,180 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-12-22 05:31:29,180 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 101 transitions. [2020-12-22 05:31:29,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-12-22 05:31:29,181 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:31:29,181 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:31:29,395 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2020-12-22 05:31:29,396 INFO L429 AbstractCegarLoop]: === Iteration 17 === [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 05:31:29,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:31:29,396 INFO L82 PathProgramCache]: Analyzing trace with hash 366986673, now seen corresponding path program 3 times [2020-12-22 05:31:29,397 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:31:29,397 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250034956] [2020-12-22 05:31:29,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:31:29,414 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:31:29,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1775528554] [2020-12-22 05:31:29,415 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:31:29,512 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-12-22 05:31:29,512 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 05:31:29,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 50 conjunts are in the unsatisfiable core [2020-12-22 05:31:29,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:31:30,014 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 21 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-12-22 05:31:30,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250034956] [2020-12-22 05:31:30,015 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:31:30,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1775528554] [2020-12-22 05:31:30,015 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-22 05:31:30,015 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-12-22 05:31:30,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984503734] [2020-12-22 05:31:30,016 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-12-22 05:31:30,016 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:31:30,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-12-22 05:31:30,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2020-12-22 05:31:30,017 INFO L87 Difference]: Start difference. First operand 94 states and 101 transitions. Second operand 14 states. [2020-12-22 05:31:30,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:31:30,598 INFO L93 Difference]: Finished difference Result 114 states and 124 transitions. [2020-12-22 05:31:30,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-22 05:31:30,599 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 43 [2020-12-22 05:31:30,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:31:30,600 INFO L225 Difference]: With dead ends: 114 [2020-12-22 05:31:30,600 INFO L226 Difference]: Without dead ends: 110 [2020-12-22 05:31:30,601 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=104, Invalid=316, Unknown=0, NotChecked=0, Total=420 [2020-12-22 05:31:30,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-12-22 05:31:30,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 94. [2020-12-22 05:31:30,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-12-22 05:31:30,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 100 transitions. [2020-12-22 05:31:30,615 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 100 transitions. Word has length 43 [2020-12-22 05:31:30,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:31:30,615 INFO L481 AbstractCegarLoop]: Abstraction has 94 states and 100 transitions. [2020-12-22 05:31:30,615 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-12-22 05:31:30,615 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 100 transitions. [2020-12-22 05:31:30,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-12-22 05:31:30,616 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:31:30,616 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:31:30,821 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:31:30,822 INFO L429 AbstractCegarLoop]: === Iteration 18 === [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 05:31:30,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:31:30,822 INFO L82 PathProgramCache]: Analyzing trace with hash 1273273436, now seen corresponding path program 2 times [2020-12-22 05:31:30,823 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:31:30,823 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521315317] [2020-12-22 05:31:30,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:31:30,832 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:31:30,833 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1797499150] [2020-12-22 05:31:30,833 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 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:31:30,898 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-22 05:31:30,899 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 05:31:30,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 29 conjunts are in the unsatisfiable core [2020-12-22 05:31:30,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:31:31,099 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-12-22 05:31:31,100 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521315317] [2020-12-22 05:31:31,100 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:31:31,100 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1797499150] [2020-12-22 05:31:31,101 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-22 05:31:31,101 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-12-22 05:31:31,101 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453561981] [2020-12-22 05:31:31,105 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 05:31:31,105 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:31:31,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 05:31:31,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-12-22 05:31:31,115 INFO L87 Difference]: Start difference. First operand 94 states and 100 transitions. Second operand 11 states. [2020-12-22 05:31:31,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:31:31,471 INFO L93 Difference]: Finished difference Result 94 states and 100 transitions. [2020-12-22 05:31:31,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 05:31:31,472 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 45 [2020-12-22 05:31:31,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:31:31,472 INFO L225 Difference]: With dead ends: 94 [2020-12-22 05:31:31,472 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 05:31:31,473 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2020-12-22 05:31:31,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 05:31:31,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 05:31:31,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 05:31:31,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 05:31:31,474 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2020-12-22 05:31:31,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:31:31,474 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 05:31:31,474 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 05:31:31,474 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 05:31:31,475 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 05:31:31,688 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2020-12-22 05:31:31,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-22 05:31:34,226 WARN L197 SmtUtils]: Spent 2.23 s on a formula simplification. DAG size of input: 55 DAG size of output: 29 [2020-12-22 05:31:34,461 WARN L197 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 30 [2020-12-22 05:31:34,683 WARN L197 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 18 [2020-12-22 05:31:34,940 WARN L197 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 29 [2020-12-22 05:31:35,180 WARN L197 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 29 [2020-12-22 05:31:35,329 WARN L197 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 12 [2020-12-22 05:31:35,606 WARN L197 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 18 [2020-12-22 05:31:35,611 INFO L192 CegarLoopUtils]: At program point L60(lines 22 61) the Hoare annotation is: true [2020-12-22 05:31:35,611 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2020-12-22 05:31:35,611 INFO L189 CegarLoopUtils]: For program point L52(lines 52 55) no Hoare annotation was computed. [2020-12-22 05:31:35,611 INFO L189 CegarLoopUtils]: For program point L52-2(lines 22 61) no Hoare annotation was computed. [2020-12-22 05:31:35,611 INFO L189 CegarLoopUtils]: For program point L11(lines 11 13) no Hoare annotation was computed. [2020-12-22 05:31:35,612 INFO L189 CegarLoopUtils]: For program point L44-1(lines 44 56) no Hoare annotation was computed. [2020-12-22 05:31:35,612 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2020-12-22 05:31:35,612 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-22 05:31:35,612 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-22 05:31:35,612 INFO L189 CegarLoopUtils]: For program point L12(line 12) no Hoare annotation was computed. [2020-12-22 05:31:35,612 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2020-12-22 05:31:35,612 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2020-12-22 05:31:35,613 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2020-12-22 05:31:35,613 INFO L189 CegarLoopUtils]: For program point L15(lines 15 18) no Hoare annotation was computed. [2020-12-22 05:31:35,613 INFO L185 CegarLoopUtils]: At program point L15-2(lines 14 20) the Hoare annotation is: (let ((.cse3 (* ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~B~0))) (let ((.cse0 (= ULTIMATE.start_main_~d~0 .cse3)) (.cse1 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse2 (= ULTIMATE.start_main_~q~0 0)) (.cse4 (= ULTIMATE.start_main_~A~0 ULTIMATE.start_main_~r~0))) (or (and (= ULTIMATE.start_main_~B~0 1) (= (mod ULTIMATE.start_main_~d~0 2) 0) .cse0 .cse1 .cse2 (< 0 .cse3) .cse4 (<= (div (* ULTIMATE.start_main_~d~0 (- 1)) (- 2)) ULTIMATE.start_main_~r~0)) (and .cse0 .cse1 (= ULTIMATE.start_main_~B~0 ULTIMATE.start_main_~d~0) .cse2 .cse4 (= ULTIMATE.start_main_~d~0 1))))) [2020-12-22 05:31:35,613 INFO L189 CegarLoopUtils]: For program point L15-3(lines 15 18) no Hoare annotation was computed. [2020-12-22 05:31:35,613 INFO L185 CegarLoopUtils]: At program point L15-5(lines 14 20) the Hoare annotation is: (let ((.cse3 (* ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~B~0))) (let ((.cse0 (= ULTIMATE.start_main_~d~0 .cse3)) (.cse1 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse2 (= ULTIMATE.start_main_~q~0 0)) (.cse4 (= ULTIMATE.start_main_~A~0 ULTIMATE.start_main_~r~0))) (or (and (= ULTIMATE.start_main_~B~0 1) (= (mod ULTIMATE.start_main_~d~0 2) 0) .cse0 .cse1 .cse2 (< 0 .cse3) .cse4 (<= (div (* ULTIMATE.start_main_~d~0 (- 1)) (- 2)) ULTIMATE.start_main_~r~0)) (and .cse0 .cse1 (= ULTIMATE.start_main_~B~0 ULTIMATE.start_main_~d~0) .cse2 .cse4 (= ULTIMATE.start_main_~d~0 1))))) [2020-12-22 05:31:35,614 INFO L189 CegarLoopUtils]: For program point L15-6(lines 15 18) no Hoare annotation was computed. [2020-12-22 05:31:35,614 INFO L185 CegarLoopUtils]: At program point L15-8(line 38) the Hoare annotation is: (let ((.cse3 (* ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~B~0))) (let ((.cse0 (= ULTIMATE.start_main_~d~0 .cse3)) (.cse1 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse2 (= ULTIMATE.start_main_~q~0 0)) (.cse4 (= ULTIMATE.start_main_~A~0 ULTIMATE.start_main_~r~0))) (or (and (= ULTIMATE.start_main_~B~0 1) (= (mod ULTIMATE.start_main_~d~0 2) 0) .cse0 .cse1 .cse2 (< 0 .cse3) .cse4 (<= (div (* ULTIMATE.start_main_~d~0 (- 1)) (- 2)) ULTIMATE.start_main_~r~0)) (and .cse0 .cse1 (= ULTIMATE.start_main_~B~0 ULTIMATE.start_main_~d~0) .cse2 .cse4 (= ULTIMATE.start_main_~d~0 1))))) [2020-12-22 05:31:35,614 INFO L189 CegarLoopUtils]: For program point L15-9(lines 15 18) no Hoare annotation was computed. [2020-12-22 05:31:35,614 INFO L185 CegarLoopUtils]: At program point L15-11(lines 14 20) the Hoare annotation is: (let ((.cse0 (* ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~B~0))) (and (= ULTIMATE.start_main_~B~0 1) (= ULTIMATE.start_main_~d~0 .cse0) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~A~0 (+ ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0)) (< 0 .cse0))) [2020-12-22 05:31:35,615 INFO L189 CegarLoopUtils]: For program point L15-12(lines 15 18) no Hoare annotation was computed. [2020-12-22 05:31:35,615 INFO L185 CegarLoopUtils]: At program point L15-14(line 48) the Hoare annotation is: (let ((.cse0 (* ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~B~0))) (and (= ULTIMATE.start_main_~B~0 1) (= ULTIMATE.start_main_~d~0 .cse0) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~A~0 (+ ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0)) (< 0 .cse0))) [2020-12-22 05:31:35,615 INFO L189 CegarLoopUtils]: For program point L15-15(lines 15 18) no Hoare annotation was computed. [2020-12-22 05:31:35,615 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-22 05:31:35,615 INFO L185 CegarLoopUtils]: At program point L15-17(lines 14 20) the Hoare annotation is: (and (= ULTIMATE.start_main_~B~0 1) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (= ULTIMATE.start_main_~B~0 ULTIMATE.start_main_~d~0) (= ULTIMATE.start_main_~p~0 1)) [2020-12-22 05:31:35,615 INFO L189 CegarLoopUtils]: For program point L15-18(lines 15 18) no Hoare annotation was computed. [2020-12-22 05:31:35,615 INFO L192 CegarLoopUtils]: At program point L15-20(lines 14 20) the Hoare annotation is: true [2020-12-22 05:31:35,615 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2020-12-22 05:31:35,616 INFO L189 CegarLoopUtils]: For program point L16(lines 16 17) no Hoare annotation was computed. [2020-12-22 05:31:35,616 INFO L189 CegarLoopUtils]: For program point L16-1(lines 16 17) no Hoare annotation was computed. [2020-12-22 05:31:35,616 INFO L189 CegarLoopUtils]: For program point L16-2(lines 16 17) no Hoare annotation was computed. [2020-12-22 05:31:35,616 INFO L189 CegarLoopUtils]: For program point L16-3(lines 16 17) no Hoare annotation was computed. [2020-12-22 05:31:35,616 INFO L189 CegarLoopUtils]: For program point L16-4(lines 16 17) no Hoare annotation was computed. [2020-12-22 05:31:35,616 INFO L189 CegarLoopUtils]: For program point L16-5(lines 16 17) no Hoare annotation was computed. [2020-12-22 05:31:35,616 INFO L189 CegarLoopUtils]: For program point L16-6(lines 16 17) no Hoare annotation was computed. [2020-12-22 05:31:35,616 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-22 05:31:35,617 INFO L185 CegarLoopUtils]: At program point L34-2(lines 34 42) the Hoare annotation is: (let ((.cse1 (= ULTIMATE.start_main_~q~0 0)) (.cse2 (= ULTIMATE.start_main_~A~0 ULTIMATE.start_main_~r~0))) (or (let ((.cse0 (* ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~B~0))) (and (= ULTIMATE.start_main_~B~0 1) (= (mod ULTIMATE.start_main_~d~0 2) 0) (= ULTIMATE.start_main_~d~0 .cse0) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) .cse1 (< 0 .cse0) .cse2 (<= (div (* ULTIMATE.start_main_~d~0 (- 1)) (- 2)) ULTIMATE.start_main_~r~0))) (and (= ULTIMATE.start_main_~B~0 ULTIMATE.start_main_~d~0) (= ULTIMATE.start_main_~p~0 1) .cse1 .cse2 (= ULTIMATE.start_main_~d~0 1)))) [2020-12-22 05:31:35,617 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2020-12-22 05:31:35,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 05:31:35 BoogieIcfgContainer [2020-12-22 05:31:35,650 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 05:31:35,650 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 05:31:35,651 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 05:31:35,651 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 05:31:35,651 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:31:17" (3/4) ... [2020-12-22 05:31:35,658 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 05:31:35,671 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-12-22 05:31:35,672 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-22 05:31:35,672 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 05:31:35,672 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 05:31:35,718 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/nla-digbench-scaling/hard2_valuebound100.c-witness.graphml [2020-12-22 05:31:35,718 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 05:31:35,719 INFO L168 Benchmark]: Toolchain (without parser) took 18863.85 ms. Allocated memory was 163.6 MB in the beginning and 294.6 MB in the end (delta: 131.1 MB). Free memory was 139.7 MB in the beginning and 146.5 MB in the end (delta: -6.7 MB). Peak memory consumption was 125.5 MB. Max. memory is 8.0 GB. [2020-12-22 05:31:35,720 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 163.6 MB. Free memory is still 135.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 05:31:35,720 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.57 ms. Allocated memory is still 163.6 MB. Free memory was 139.4 MB in the beginning and 129.7 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-12-22 05:31:35,720 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.78 ms. Allocated memory is still 163.6 MB. Free memory was 129.7 MB in the beginning and 128.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 05:31:35,721 INFO L168 Benchmark]: Boogie Preprocessor took 29.71 ms. Allocated memory is still 163.6 MB. Free memory was 128.0 MB in the beginning and 126.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 05:31:35,721 INFO L168 Benchmark]: RCFGBuilder took 668.67 ms. Allocated memory is still 163.6 MB. Free memory was 126.7 MB in the beginning and 146.1 MB in the end (delta: -19.4 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-12-22 05:31:35,722 INFO L168 Benchmark]: TraceAbstraction took 17722.95 ms. Allocated memory was 163.6 MB in the beginning and 294.6 MB in the end (delta: 131.1 MB). Free memory was 145.6 MB in the beginning and 149.6 MB in the end (delta: -4.0 MB). Peak memory consumption was 170.6 MB. Max. memory is 8.0 GB. [2020-12-22 05:31:35,722 INFO L168 Benchmark]: Witness Printer took 67.76 ms. Allocated memory is still 294.6 MB. Free memory was 149.6 MB in the beginning and 146.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-22 05:31:35,725 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 163.6 MB. Free memory is still 135.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 290.57 ms. Allocated memory is still 163.6 MB. Free memory was 139.4 MB in the beginning and 129.7 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 70.78 ms. Allocated memory is still 163.6 MB. Free memory was 129.7 MB in the beginning and 128.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 29.71 ms. Allocated memory is still 163.6 MB. Free memory was 128.0 MB in the beginning and 126.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 668.67 ms. Allocated memory is still 163.6 MB. Free memory was 126.7 MB in the beginning and 146.1 MB in the end (delta: -19.4 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 17722.95 ms. Allocated memory was 163.6 MB in the beginning and 294.6 MB in the end (delta: 131.1 MB). Free memory was 145.6 MB in the beginning and 149.6 MB in the end (delta: -4.0 MB). Peak memory consumption was 170.6 MB. Max. memory is 8.0 GB. * Witness Printer took 67.76 ms. Allocated memory is still 294.6 MB. Free memory was 149.6 MB in the beginning and 146.5 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: 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: (((((((B == 1 && d % 2 == 0) && d == p * B) && 1 == cond) && q == 0) && 0 < p * B) && A == r) && d * -1 / -2 <= r) || (((((d == p * B && 1 == cond) && B == d) && q == 0) && A == r) && d == 1) - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: (((((((B == 1 && d % 2 == 0) && d == p * B) && 1 == cond) && q == 0) && 0 < p * B) && A == r) && d * -1 / -2 <= r) || ((((B == d && p == 1) && q == 0) && A == r) && d == 1) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 48]: Loop Invariant Derived loop invariant: (((B == 1 && d == p * B) && 1 == cond) && A == q + r) && 0 < p * B - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: (((((((B == 1 && d % 2 == 0) && d == p * B) && 1 == cond) && q == 0) && 0 < p * B) && A == r) && d * -1 / -2 <= r) || (((((d == p * B && 1 == cond) && B == d) && q == 0) && A == r) && d == 1) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (((((((B == 1 && d % 2 == 0) && d == p * B) && 1 == cond) && q == 0) && 0 < p * B) && A == r) && d * -1 / -2 <= r) || (((((d == p * B && 1 == cond) && B == d) && q == 0) && A == r) && d == 1) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: ((B == 1 && !(0 == cond)) && B == d) && p == 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (((B == 1 && d == p * B) && 1 == cond) && A == q + r) && 0 < p * B - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 39 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 13.6s, OverallIterations: 18, TraceHistogramMax: 4, AutomataDifference: 5.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 407 SDtfs, 679 SDslu, 1072 SDs, 0 SdLazy, 2560 SolverSat, 491 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 519 GetRequests, 363 SyntacticMatches, 0 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=94occurred in iteration=16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 18 MinimizatonAttempts, 188 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 62 NumberOfFragments, 283 HoareAnnotationTreeSize, 9 FomulaSimplifications, 35170 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 9 FomulaSimplificationsInter, 5800 FormulaSimplificationTreeSizeReductionInter, 3.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 496 NumberOfCodeBlocks, 440 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 478 ConstructedInterpolants, 0 QuantifiedInterpolants, 189867 SizeOfPredicates, 155 NumberOfNonLiveVariables, 1689 ConjunctsInSsa, 495 ConjunctsInUnsatCore, 18 InterpolantComputations, 6 PerfectInterpolantSequences, 118/343 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...