/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/nla-digbench/geo1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-23 22:17:40,074 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-23 22:17:40,077 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-23 22:17:40,088 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-23 22:17:40,089 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-23 22:17:40,090 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-23 22:17:40,091 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-23 22:17:40,093 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-23 22:17:40,094 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-23 22:17:40,095 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-23 22:17:40,096 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-23 22:17:40,097 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-23 22:17:40,097 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-23 22:17:40,098 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-23 22:17:40,099 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-23 22:17:40,100 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-23 22:17:40,101 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-23 22:17:40,102 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-23 22:17:40,104 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-23 22:17:40,106 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-23 22:17:40,107 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-23 22:17:40,108 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-23 22:17:40,109 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-23 22:17:40,110 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-23 22:17:40,112 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-23 22:17:40,122 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-23 22:17:40,135 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-23 22:17:40,136 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-23 22:17:40,137 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-23 22:17:40,137 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-23 22:17:40,137 INFO L138 SettingsManager]: * Use SBE=true [2019-11-23 22:17:40,137 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-23 22:17:40,138 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-23 22:17:40,138 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-23 22:17:40,138 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-23 22:17:40,138 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-23 22:17:40,138 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-23 22:17:40,138 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-23 22:17:40,139 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-23 22:17:40,139 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-23 22:17:40,139 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-23 22:17:40,139 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-23 22:17:40,139 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-23 22:17:40,140 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-23 22:17:40,140 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-23 22:17:40,140 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-23 22:17:40,140 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-23 22:17:40,141 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-23 22:17:40,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-23 22:17:40,141 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-23 22:17:40,141 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-23 22:17:40,141 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-23 22:17:40,142 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-23 22:17:40,142 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-23 22:17:40,142 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-23 22:17:40,142 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-23 22:17:40,428 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-23 22:17:40,441 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-23 22:17:40,444 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-23 22:17:40,445 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-23 22:17:40,446 INFO L275 PluginConnector]: CDTParser initialized [2019-11-23 22:17:40,447 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/geo1.c [2019-11-23 22:17:40,521 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/806723b8f/cda8a7e3af44491b81bd36a0f0db579f/FLAGe44e96869 [2019-11-23 22:17:41,032 INFO L306 CDTParser]: Found 1 translation units. [2019-11-23 22:17:41,032 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/geo1.c [2019-11-23 22:17:41,038 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/806723b8f/cda8a7e3af44491b81bd36a0f0db579f/FLAGe44e96869 [2019-11-23 22:17:41,437 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/806723b8f/cda8a7e3af44491b81bd36a0f0db579f [2019-11-23 22:17:41,449 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-23 22:17:41,451 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-23 22:17:41,453 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-23 22:17:41,453 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-23 22:17:41,457 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-23 22:17:41,458 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:17:41" (1/1) ... [2019-11-23 22:17:41,461 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35abdc3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:17:41, skipping insertion in model container [2019-11-23 22:17:41,461 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:17:41" (1/1) ... [2019-11-23 22:17:41,471 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-23 22:17:41,493 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-23 22:17:41,724 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 22:17:41,728 INFO L203 MainTranslator]: Completed pre-run [2019-11-23 22:17:41,751 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 22:17:41,766 INFO L208 MainTranslator]: Completed translation [2019-11-23 22:17:41,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:17:41 WrapperNode [2019-11-23 22:17:41,766 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-23 22:17:41,767 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-23 22:17:41,767 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-23 22:17:41,767 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-23 22:17:41,774 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:17:41" (1/1) ... [2019-11-23 22:17:41,779 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:17:41" (1/1) ... [2019-11-23 22:17:41,879 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-23 22:17:41,880 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-23 22:17:41,880 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-23 22:17:41,880 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-23 22:17:41,889 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:17:41" (1/1) ... [2019-11-23 22:17:41,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:17:41" (1/1) ... [2019-11-23 22:17:41,890 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:17:41" (1/1) ... [2019-11-23 22:17:41,890 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:17:41" (1/1) ... [2019-11-23 22:17:41,893 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:17:41" (1/1) ... [2019-11-23 22:17:41,896 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:17:41" (1/1) ... [2019-11-23 22:17:41,897 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:17:41" (1/1) ... [2019-11-23 22:17:41,899 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-23 22:17:41,899 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-23 22:17:41,899 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-23 22:17:41,899 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-23 22:17:41,900 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:17:41" (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 [2019-11-23 22:17:41,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-23 22:17:41,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-23 22:17:42,139 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-23 22:17:42,139 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-23 22:17:42,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:17:42 BoogieIcfgContainer [2019-11-23 22:17:42,141 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-23 22:17:42,142 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-23 22:17:42,142 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-23 22:17:42,145 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-23 22:17:42,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:17:41" (1/3) ... [2019-11-23 22:17:42,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38a26dc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:17:42, skipping insertion in model container [2019-11-23 22:17:42,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:17:41" (2/3) ... [2019-11-23 22:17:42,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38a26dc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:17:42, skipping insertion in model container [2019-11-23 22:17:42,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:17:42" (3/3) ... [2019-11-23 22:17:42,149 INFO L109 eAbstractionObserver]: Analyzing ICFG geo1.c [2019-11-23 22:17:42,158 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-23 22:17:42,167 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-23 22:17:42,178 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-23 22:17:42,199 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-23 22:17:42,199 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-23 22:17:42,199 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-23 22:17:42,199 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-23 22:17:42,200 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-23 22:17:42,201 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-23 22:17:42,201 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-23 22:17:42,201 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-23 22:17:42,215 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-11-23 22:17:42,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-23 22:17:42,219 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:17:42,220 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-23 22:17:42,220 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:17:42,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:17:42,224 INFO L82 PathProgramCache]: Analyzing trace with hash 963340, now seen corresponding path program 1 times [2019-11-23 22:17:42,231 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:17:42,232 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445120268] [2019-11-23 22:17:42,232 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:17:42,299 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-23 22:17:42,299 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [995221063] [2019-11-23 22:17:42,300 INFO L94 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 [2019-11-23 22:17:42,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:17:42,336 INFO L255 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-23 22:17:42,341 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 22:17:42,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:17:42,399 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445120268] [2019-11-23 22:17:42,399 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-23 22:17:42,399 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [995221063] [2019-11-23 22:17:42,400 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 22:17:42,400 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 22:17:42,402 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875772468] [2019-11-23 22:17:42,406 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 22:17:42,407 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:17:42,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 22:17:42,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-23 22:17:42,428 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 4 states. [2019-11-23 22:17:42,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:17:42,581 INFO L93 Difference]: Finished difference Result 37 states and 51 transitions. [2019-11-23 22:17:42,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-23 22:17:42,583 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-11-23 22:17:42,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:17:42,591 INFO L225 Difference]: With dead ends: 37 [2019-11-23 22:17:42,591 INFO L226 Difference]: Without dead ends: 14 [2019-11-23 22:17:42,595 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-23 22:17:42,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-11-23 22:17:42,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2019-11-23 22:17:42,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-11-23 22:17:42,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2019-11-23 22:17:42,628 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 4 [2019-11-23 22:17:42,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:17:42,629 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2019-11-23 22:17:42,629 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 22:17:42,629 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2019-11-23 22:17:42,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-23 22:17:42,630 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:17:42,630 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2019-11-23 22:17:42,831 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:17:42,832 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:17:42,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:17:42,833 INFO L82 PathProgramCache]: Analyzing trace with hash -1360983589, now seen corresponding path program 1 times [2019-11-23 22:17:42,833 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:17:42,834 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791060307] [2019-11-23 22:17:42,834 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:17:42,840 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-23 22:17:42,841 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [406343209] [2019-11-23 22:17:42,841 INFO L94 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 [2019-11-23 22:17:42,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:17:42,877 WARN L253 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 21 conjunts are in the unsatisfiable core [2019-11-23 22:17:42,879 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 22:17:43,009 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:17:43,010 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791060307] [2019-11-23 22:17:43,011 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-23 22:17:43,011 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [406343209] [2019-11-23 22:17:43,011 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-11-23 22:17:43,012 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2019-11-23 22:17:43,012 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487082930] [2019-11-23 22:17:43,014 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-23 22:17:43,014 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:17:43,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-23 22:17:43,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-23 22:17:43,016 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 6 states. [2019-11-23 22:17:43,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:17:43,096 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2019-11-23 22:17:43,097 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-23 22:17:43,097 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 7 [2019-11-23 22:17:43,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:17:43,098 INFO L225 Difference]: With dead ends: 23 [2019-11-23 22:17:43,098 INFO L226 Difference]: Without dead ends: 17 [2019-11-23 22:17:43,099 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-11-23 22:17:43,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-11-23 22:17:43,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2019-11-23 22:17:43,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-23 22:17:43,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2019-11-23 22:17:43,105 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 7 [2019-11-23 22:17:43,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:17:43,105 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2019-11-23 22:17:43,105 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-23 22:17:43,106 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2019-11-23 22:17:43,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-23 22:17:43,106 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:17:43,106 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1] [2019-11-23 22:17:43,309 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:17:43,310 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:17:43,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:17:43,310 INFO L82 PathProgramCache]: Analyzing trace with hash -565900116, now seen corresponding path program 2 times [2019-11-23 22:17:43,311 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:17:43,312 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626675952] [2019-11-23 22:17:43,312 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:17:43,324 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-23 22:17:43,328 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1018354903] [2019-11-23 22:17:43,328 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 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 [2019-11-23 22:17:43,370 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-23 22:17:43,371 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-23 22:17:43,372 WARN L253 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 30 conjunts are in the unsatisfiable core [2019-11-23 22:17:43,373 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 22:17:46,345 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:17:46,346 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626675952] [2019-11-23 22:17:46,346 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-23 22:17:46,347 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1018354903] [2019-11-23 22:17:46,347 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-11-23 22:17:46,347 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2019-11-23 22:17:46,347 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807752692] [2019-11-23 22:17:46,348 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-23 22:17:46,348 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:17:46,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-23 22:17:46,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=38, Unknown=1, NotChecked=0, Total=56 [2019-11-23 22:17:46,349 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 8 states. [2019-11-23 22:17:48,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:17:48,530 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2019-11-23 22:17:48,530 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-23 22:17:48,530 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 10 [2019-11-23 22:17:48,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:17:48,532 INFO L225 Difference]: With dead ends: 26 [2019-11-23 22:17:48,532 INFO L226 Difference]: Without dead ends: 20 [2019-11-23 22:17:48,533 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=21, Invalid=50, Unknown=1, NotChecked=0, Total=72 [2019-11-23 22:17:48,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-11-23 22:17:48,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2019-11-23 22:17:48,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-23 22:17:48,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2019-11-23 22:17:48,539 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 10 [2019-11-23 22:17:48,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:17:48,540 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2019-11-23 22:17:48,540 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-23 22:17:48,540 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2019-11-23 22:17:48,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-23 22:17:48,541 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:17:48,541 INFO L410 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1] [2019-11-23 22:17:48,743 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:17:48,744 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:17:48,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:17:48,745 INFO L82 PathProgramCache]: Analyzing trace with hash -978793413, now seen corresponding path program 3 times [2019-11-23 22:17:48,746 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:17:48,746 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126220327] [2019-11-23 22:17:48,747 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:17:48,754 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-23 22:17:48,754 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [302103475] [2019-11-23 22:17:48,755 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 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 [2019-11-23 22:17:48,803 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-11-23 22:17:48,804 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-23 22:17:48,804 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 20 conjunts are in the unsatisfiable core [2019-11-23 22:17:48,806 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 22:17:48,834 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 22:17:48,878 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 22:17:48,900 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-23 22:17:48,902 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126220327] [2019-11-23 22:17:48,902 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-23 22:17:48,902 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [302103475] [2019-11-23 22:17:48,902 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-11-23 22:17:48,903 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2019-11-23 22:17:48,903 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469261959] [2019-11-23 22:17:48,903 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-23 22:17:48,903 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:17:48,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-23 22:17:48,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-11-23 22:17:48,904 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 7 states. [2019-11-23 22:17:48,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:17:48,963 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2019-11-23 22:17:48,963 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-23 22:17:48,963 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2019-11-23 22:17:48,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:17:48,963 INFO L225 Difference]: With dead ends: 19 [2019-11-23 22:17:48,964 INFO L226 Difference]: Without dead ends: 0 [2019-11-23 22:17:48,964 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2019-11-23 22:17:48,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-23 22:17:48,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-23 22:17:48,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-23 22:17:48,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-23 22:17:48,965 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2019-11-23 22:17:48,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:17:48,965 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-23 22:17:48,966 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-23 22:17:48,966 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-23 22:17:48,966 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-23 22:17:49,167 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:17:49,172 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-23 22:17:49,271 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-23 22:17:49,272 INFO L440 ceAbstractionStarter]: At program point L27-2(lines 27 37) the Hoare annotation is: (let ((.cse0 (exists ((v_ULTIMATE.start_main_~x~0_14 Int)) (let ((.cse1 (* v_ULTIMATE.start_main_~x~0_14 ULTIMATE.start_main_~z~0))) (and (= ULTIMATE.start_main_~x~0 (+ .cse1 1)) (= ULTIMATE.start_main_~y~0 (* (+ .cse1 (* v_ULTIMATE.start_main_~x~0_14 (- 1)) 1) ULTIMATE.start_main_~z~0))))))) (or (and .cse0 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (and .cse0 (= ULTIMATE.start_main_~x~0 1)))) [2019-11-23 22:17:49,272 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2019-11-23 22:17:49,272 INFO L444 ceAbstractionStarter]: For program point L27-3(lines 27 37) no Hoare annotation was computed. [2019-11-23 22:17:49,272 INFO L444 ceAbstractionStarter]: For program point L11(lines 11 14) no Hoare annotation was computed. [2019-11-23 22:17:49,273 INFO L447 ceAbstractionStarter]: At program point L42(lines 17 43) the Hoare annotation is: true [2019-11-23 22:17:49,273 INFO L440 ceAbstractionStarter]: At program point L11-2(lines 30 31) the Hoare annotation is: (and (exists ((v_ULTIMATE.start_main_~x~0_14 Int)) (let ((.cse0 (* v_ULTIMATE.start_main_~x~0_14 ULTIMATE.start_main_~z~0))) (and (= ULTIMATE.start_main_~x~0 (+ .cse0 1)) (= ULTIMATE.start_main_~y~0 (* (+ .cse0 (* v_ULTIMATE.start_main_~x~0_14 (- 1)) 1) ULTIMATE.start_main_~z~0))))) (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) [2019-11-23 22:17:49,273 INFO L444 ceAbstractionStarter]: For program point L11-3(lines 11 14) no Hoare annotation was computed. [2019-11-23 22:17:49,273 INFO L447 ceAbstractionStarter]: At program point L11-5(lines 10 16) the Hoare annotation is: true [2019-11-23 22:17:49,273 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-23 22:17:49,273 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-23 22:17:49,274 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2019-11-23 22:17:49,275 INFO L444 ceAbstractionStarter]: For program point L12(lines 12 13) no Hoare annotation was computed. [2019-11-23 22:17:49,275 INFO L444 ceAbstractionStarter]: For program point L12-1(lines 12 13) no Hoare annotation was computed. [2019-11-23 22:17:49,284 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-23 22:17:49,285 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-23 22:17:49,286 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-23 22:17:49,294 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-23 22:17:49,294 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-23 22:17:49,294 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-23 22:17:49,297 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-23 22:17:49,297 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-23 22:17:49,297 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-23 22:17:49,298 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-23 22:17:49,298 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-23 22:17:49,298 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-23 22:17:49,301 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-23 22:17:49,302 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-23 22:17:49,302 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-23 22:17:49,302 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-23 22:17:49,302 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-23 22:17:49,303 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-23 22:17:49,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:17:49 BoogieIcfgContainer [2019-11-23 22:17:49,306 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-23 22:17:49,311 INFO L168 Benchmark]: Toolchain (without parser) took 7857.16 ms. Allocated memory was 138.4 MB in the beginning and 233.8 MB in the end (delta: 95.4 MB). Free memory was 103.3 MB in the beginning and 175.2 MB in the end (delta: -71.9 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. [2019-11-23 22:17:49,317 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 138.4 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-11-23 22:17:49,323 INFO L168 Benchmark]: CACSL2BoogieTranslator took 313.71 ms. Allocated memory is still 138.4 MB. Free memory was 103.1 MB in the beginning and 93.1 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2019-11-23 22:17:49,324 INFO L168 Benchmark]: Boogie Procedure Inliner took 112.58 ms. Allocated memory was 138.4 MB in the beginning and 200.8 MB in the end (delta: 62.4 MB). Free memory was 93.1 MB in the beginning and 179.6 MB in the end (delta: -86.5 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB. [2019-11-23 22:17:49,325 INFO L168 Benchmark]: Boogie Preprocessor took 18.93 ms. Allocated memory is still 200.8 MB. Free memory was 179.6 MB in the beginning and 178.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-11-23 22:17:49,325 INFO L168 Benchmark]: RCFGBuilder took 241.90 ms. Allocated memory is still 200.8 MB. Free memory was 178.3 MB in the beginning and 167.3 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. [2019-11-23 22:17:49,326 INFO L168 Benchmark]: TraceAbstraction took 7164.58 ms. Allocated memory was 200.8 MB in the beginning and 233.8 MB in the end (delta: 33.0 MB). Free memory was 166.7 MB in the beginning and 175.2 MB in the end (delta: -8.6 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. [2019-11-23 22:17:49,337 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 138.4 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 313.71 ms. Allocated memory is still 138.4 MB. Free memory was 103.1 MB in the beginning and 93.1 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 112.58 ms. Allocated memory was 138.4 MB in the beginning and 200.8 MB in the end (delta: 62.4 MB). Free memory was 93.1 MB in the beginning and 179.6 MB in the end (delta: -86.5 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 18.93 ms. Allocated memory is still 200.8 MB. Free memory was 179.6 MB in the beginning and 178.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 241.90 ms. Allocated memory is still 200.8 MB. Free memory was 178.3 MB in the beginning and 167.3 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 7164.58 ms. Allocated memory was 200.8 MB in the beginning and 233.8 MB in the end (delta: 33.0 MB). Free memory was 166.7 MB in the beginning and 175.2 MB in the end (delta: -8.6 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 13]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 13]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 30]: Loop Invariant [2019-11-23 22:17:49,354 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-23 22:17:49,354 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-23 22:17:49,355 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-23 22:17:49,355 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-23 22:17:49,355 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-23 22:17:49,356 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] Derived loop invariant: (\exists v_ULTIMATE.start_main_~x~0_14 : int :: x == v_ULTIMATE.start_main_~x~0_14 * z + 1 && y == (v_ULTIMATE.start_main_~x~0_14 * z + v_ULTIMATE.start_main_~x~0_14 * -1 + 1) * z) && 1 == cond - InvariantResult [Line: 27]: Loop Invariant [2019-11-23 22:17:49,356 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-23 22:17:49,356 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-23 22:17:49,357 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-23 22:17:49,357 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-23 22:17:49,364 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-23 22:17:49,364 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-23 22:17:49,365 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-23 22:17:49,365 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-23 22:17:49,365 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-23 22:17:49,365 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-23 22:17:49,366 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-23 22:17:49,367 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] Derived loop invariant: ((\exists v_ULTIMATE.start_main_~x~0_14 : int :: x == v_ULTIMATE.start_main_~x~0_14 * z + 1 && y == (v_ULTIMATE.start_main_~x~0_14 * z + v_ULTIMATE.start_main_~x~0_14 * -1 + 1) * z) && 1 == cond) || ((\exists v_ULTIMATE.start_main_~x~0_14 : int :: x == v_ULTIMATE.start_main_~x~0_14 * z + 1 && y == (v_ULTIMATE.start_main_~x~0_14 * z + v_ULTIMATE.start_main_~x~0_14 * -1 + 1) * z) && x == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 2 error locations. Result: SAFE, OverallTime: 7.0s, OverallIterations: 4, TraceHistogramMax: 4, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 24 SDtfs, 34 SDslu, 54 SDs, 0 SdLazy, 83 SolverSat, 26 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 16 NumberOfFragments, 78 HoareAnnotationTreeSize, 4 FomulaSimplifications, 183 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 3 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 34 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 30 ConstructedInterpolants, 1 QuantifiedInterpolants, 1884 SizeOfPredicates, 32 NumberOfNonLiveVariables, 152 ConjunctsInSsa, 81 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 13/24 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...