/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/taipan/svcomp-Reach-32bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/heap-data/hash_fun.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 00:37:15,282 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 00:37:15,285 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 00:37:15,304 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 00:37:15,304 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 00:37:15,306 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 00:37:15,308 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 00:37:15,321 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 00:37:15,323 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 00:37:15,323 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 00:37:15,326 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 00:37:15,328 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 00:37:15,328 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 00:37:15,332 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 00:37:15,335 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 00:37:15,337 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 00:37:15,338 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 00:37:15,341 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 00:37:15,343 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 00:37:15,348 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 00:37:15,352 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 00:37:15,353 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 00:37:15,354 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 00:37:15,355 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 00:37:15,359 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-24 00:37:15,376 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-24 00:37:15,391 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 00:37:15,391 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 00:37:15,392 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 00:37:15,392 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 00:37:15,392 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 00:37:15,392 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 00:37:15,393 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 00:37:15,393 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 00:37:15,393 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 00:37:15,393 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 00:37:15,393 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 00:37:15,393 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 00:37:15,394 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 00:37:15,394 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 00:37:15,394 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 00:37:15,395 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 00:37:15,395 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 00:37:15,395 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 00:37:15,395 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 00:37:15,396 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 00:37:15,396 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 00:37:15,396 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 00:37:15,396 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 00:37:15,396 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 00:37:15,396 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 00:37:15,397 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 00:37:15,397 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 00:37:15,397 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 00:37:15,397 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 00:37:15,397 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 00:37:15,398 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 00:37:15,398 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 00:37:15,398 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 00:37:15,398 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 00:37:15,398 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 00:37:15,399 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 00:37:15,399 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 00:37:15,399 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 00:37:15,694 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 00:37:15,714 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 00:37:15,717 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 00:37:15,718 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 00:37:15,719 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 00:37:15,719 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-data/hash_fun.i [2019-11-24 00:37:15,797 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1dd89b676/28067e4d1d774a198ceea99cd80e1018/FLAGf5ee5eef7 [2019-11-24 00:37:16,354 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 00:37:16,354 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-data/hash_fun.i [2019-11-24 00:37:16,373 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1dd89b676/28067e4d1d774a198ceea99cd80e1018/FLAGf5ee5eef7 [2019-11-24 00:37:16,632 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1dd89b676/28067e4d1d774a198ceea99cd80e1018 [2019-11-24 00:37:16,642 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 00:37:16,644 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 00:37:16,648 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 00:37:16,648 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 00:37:16,651 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 00:37:16,655 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:37:16" (1/1) ... [2019-11-24 00:37:16,657 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f0b91ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:37:16, skipping insertion in model container [2019-11-24 00:37:16,657 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:37:16" (1/1) ... [2019-11-24 00:37:16,664 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 00:37:16,702 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 00:37:17,140 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 00:37:17,154 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 00:37:17,235 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 00:37:17,295 INFO L208 MainTranslator]: Completed translation [2019-11-24 00:37:17,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:37:17 WrapperNode [2019-11-24 00:37:17,295 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 00:37:17,296 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 00:37:17,296 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 00:37:17,297 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 00:37:17,305 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:37:17" (1/1) ... [2019-11-24 00:37:17,322 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:37:17" (1/1) ... [2019-11-24 00:37:17,344 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 00:37:17,345 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 00:37:17,345 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 00:37:17,345 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 00:37:17,353 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:37:17" (1/1) ... [2019-11-24 00:37:17,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:37:17" (1/1) ... [2019-11-24 00:37:17,357 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:37:17" (1/1) ... [2019-11-24 00:37:17,357 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:37:17" (1/1) ... [2019-11-24 00:37:17,364 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:37:17" (1/1) ... [2019-11-24 00:37:17,369 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:37:17" (1/1) ... [2019-11-24 00:37:17,371 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:37:17" (1/1) ... [2019-11-24 00:37:17,374 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 00:37:17,375 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 00:37:17,375 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 00:37:17,375 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 00:37:17,376 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:37:17" (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 [2019-11-24 00:37:17,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-24 00:37:17,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-24 00:37:17,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-24 00:37:17,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-24 00:37:17,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-24 00:37:17,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-24 00:37:17,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-24 00:37:17,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-24 00:37:17,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 00:37:17,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 00:37:18,012 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 00:37:18,012 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-11-24 00:37:18,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:37:18 BoogieIcfgContainer [2019-11-24 00:37:18,014 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 00:37:18,015 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-24 00:37:18,016 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-24 00:37:18,019 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-24 00:37:18,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:37:16" (1/3) ... [2019-11-24 00:37:18,020 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3475bc22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:37:18, skipping insertion in model container [2019-11-24 00:37:18,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:37:17" (2/3) ... [2019-11-24 00:37:18,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3475bc22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:37:18, skipping insertion in model container [2019-11-24 00:37:18,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:37:18" (3/3) ... [2019-11-24 00:37:18,023 INFO L109 eAbstractionObserver]: Analyzing ICFG hash_fun.i [2019-11-24 00:37:18,033 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-24 00:37:18,039 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-24 00:37:18,048 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-24 00:37:18,069 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-24 00:37:18,069 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-24 00:37:18,069 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-24 00:37:18,069 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-24 00:37:18,070 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-24 00:37:18,070 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-24 00:37:18,070 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-24 00:37:18,070 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-24 00:37:18,083 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2019-11-24 00:37:18,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-24 00:37:18,090 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 00:37:18,091 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-24 00:37:18,091 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 00:37:18,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 00:37:18,096 INFO L82 PathProgramCache]: Analyzing trace with hash -1604595326, now seen corresponding path program 1 times [2019-11-24 00:37:18,103 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 00:37:18,104 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176439151] [2019-11-24 00:37:18,104 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 00:37:18,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 00:37:18,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 00:37:18,224 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176439151] [2019-11-24 00:37:18,225 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 00:37:18,225 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-24 00:37:18,226 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38066283] [2019-11-24 00:37:18,231 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-24 00:37:18,232 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 00:37:18,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-24 00:37:18,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-24 00:37:18,249 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 2 states. [2019-11-24 00:37:18,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 00:37:18,266 INFO L93 Difference]: Finished difference Result 19 states and 25 transitions. [2019-11-24 00:37:18,267 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-24 00:37:18,268 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2019-11-24 00:37:18,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 00:37:18,277 INFO L225 Difference]: With dead ends: 19 [2019-11-24 00:37:18,277 INFO L226 Difference]: Without dead ends: 9 [2019-11-24 00:37:18,280 INFO L630 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 [2019-11-24 00:37:18,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-11-24 00:37:18,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2019-11-24 00:37:18,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-11-24 00:37:18,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2019-11-24 00:37:18,310 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 6 [2019-11-24 00:37:18,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 00:37:18,310 INFO L462 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2019-11-24 00:37:18,310 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-24 00:37:18,311 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2019-11-24 00:37:18,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-24 00:37:18,311 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 00:37:18,311 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-24 00:37:18,311 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 00:37:18,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 00:37:18,312 INFO L82 PathProgramCache]: Analyzing trace with hash 1144181794, now seen corresponding path program 1 times [2019-11-24 00:37:18,312 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 00:37:18,312 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551830034] [2019-11-24 00:37:18,313 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 00:37:18,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 00:37:18,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 00:37:18,420 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551830034] [2019-11-24 00:37:18,421 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 00:37:18,421 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-24 00:37:18,421 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562154905] [2019-11-24 00:37:18,424 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-24 00:37:18,425 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 00:37:18,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-24 00:37:18,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-24 00:37:18,426 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand 4 states. [2019-11-24 00:37:18,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 00:37:18,508 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2019-11-24 00:37:18,509 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-24 00:37:18,509 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-11-24 00:37:18,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 00:37:18,510 INFO L225 Difference]: With dead ends: 19 [2019-11-24 00:37:18,510 INFO L226 Difference]: Without dead ends: 11 [2019-11-24 00:37:18,511 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-24 00:37:18,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-11-24 00:37:18,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-11-24 00:37:18,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-24 00:37:18,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2019-11-24 00:37:18,518 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 7 [2019-11-24 00:37:18,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 00:37:18,519 INFO L462 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2019-11-24 00:37:18,519 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-24 00:37:18,520 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2019-11-24 00:37:18,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-24 00:37:18,521 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 00:37:18,521 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 00:37:18,522 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 00:37:18,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 00:37:18,523 INFO L82 PathProgramCache]: Analyzing trace with hash 1819167234, now seen corresponding path program 1 times [2019-11-24 00:37:18,523 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 00:37:18,523 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993572338] [2019-11-24 00:37:18,524 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 00:37:18,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 00:37:18,920 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 00:37:18,921 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993572338] [2019-11-24 00:37:18,921 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1347379548] [2019-11-24 00:37:18,921 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 [2019-11-24 00:37:19,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 00:37:19,007 INFO L255 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-24 00:37:19,015 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-24 00:37:19,100 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:37:19,117 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:37:19,605 WARN L192 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2019-11-24 00:37:19,675 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 155 treesize of output 153 [2019-11-24 00:37:19,679 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-24 00:37:20,144 WARN L192 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2019-11-24 00:37:20,145 INFO L567 ElimStorePlain]: treesize reduction 77, result has 67.8 percent of original size [2019-11-24 00:37:20,151 INFO L392 ElimStorePlain]: Different costs {0=[|v_#memory_int_29|], 2=[|v_#memory_int_28|, |v_#memory_$Pointer$.offset_32|, |v_#memory_$Pointer$.base_32|], 4=[|v_#memory_$Pointer$.offset_33|, |v_#memory_$Pointer$.base_33|]} [2019-11-24 00:37:20,183 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 146 treesize of output 131 [2019-11-24 00:37:20,184 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-24 00:37:20,304 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2019-11-24 00:37:20,304 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-24 00:37:20,340 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-24 00:37:20,342 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 107 [2019-11-24 00:37:20,343 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-24 00:37:20,419 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-24 00:37:20,433 INFO L496 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-24 00:37:20,508 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-24 00:37:20,515 INFO L496 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-24 00:37:20,583 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-24 00:37:20,592 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-24 00:37:20,600 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 99 [2019-11-24 00:37:20,601 INFO L496 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2019-11-24 00:37:20,649 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-24 00:37:20,661 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-24 00:37:20,672 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 72 [2019-11-24 00:37:20,673 INFO L496 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2019-11-24 00:37:20,711 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-24 00:37:20,713 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 6 dim-2 vars, End of recursive call: and 2 xjuncts. [2019-11-24 00:37:20,713 INFO L221 ElimStorePlain]: Needed 8 recursive calls to eliminate 9 variables, input treesize:244, output treesize:85 [2019-11-24 00:37:20,843 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:37:20,844 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:37:20,846 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:37:20,848 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:37:20,849 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:37:20,850 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:37:20,915 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 00:37:20,916 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-24 00:37:20,921 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:37:20,922 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:37:20,925 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:37:20,926 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:37:20,978 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:37:20,980 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:37:20,982 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:37:20,984 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:37:20,989 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:37:20,991 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:37:21,000 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:37:21,002 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:37:21,006 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:37:21,135 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2019-11-24 00:37:21,139 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:37:21,145 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:37:21,147 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:37:21,149 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:37:21,153 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:37:21,265 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2019-11-24 00:37:21,269 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:37:21,275 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:37:21,276 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:37:21,280 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:37:21,282 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:37:21,327 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 127 [2019-11-24 00:37:21,328 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-24 00:37:21,964 WARN L192 SmtUtils]: Spent 635.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 121 [2019-11-24 00:37:21,966 INFO L567 ElimStorePlain]: treesize reduction 248, result has 51.8 percent of original size [2019-11-24 00:37:21,985 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 127 [2019-11-24 00:37:21,986 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-24 00:37:22,254 WARN L192 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2019-11-24 00:37:22,254 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-24 00:37:22,262 INFO L392 ElimStorePlain]: Different costs {0=[v_prenex_8, v_prenex_13, v_prenex_12, |v_#memory_$Pointer$.base_32|, |#memory_int|, v_prenex_15, |v_#memory_$Pointer$.offset_32|, v_prenex_1, v_prenex_2, v_prenex_3, v_prenex_4, v_prenex_5, v_prenex_6, v_prenex_7], 2=[v_prenex_10, |v_#memory_int_28|, v_prenex_11, |v_#memory_int_30|]} [2019-11-24 00:37:22,262 INFO L464 ElimStorePlain]: Eliminatee v_prenex_8 vanished before elimination [2019-11-24 00:37:22,273 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-24 00:37:22,482 WARN L192 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2019-11-24 00:37:22,483 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-24 00:37:22,498 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 84 [2019-11-24 00:37:22,498 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-11-24 00:37:22,655 WARN L192 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2019-11-24 00:37:22,656 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-24 00:37:22,663 INFO L496 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2019-11-24 00:37:22,808 WARN L192 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-11-24 00:37:22,809 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-24 00:37:22,824 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 84 [2019-11-24 00:37:22,824 INFO L496 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2019-11-24 00:37:22,920 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-24 00:37:22,927 INFO L496 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2019-11-24 00:37:23,008 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-24 00:37:23,013 INFO L496 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2019-11-24 00:37:23,078 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-24 00:37:23,078 INFO L464 ElimStorePlain]: Eliminatee v_prenex_1 vanished before elimination [2019-11-24 00:37:23,078 INFO L464 ElimStorePlain]: Eliminatee v_prenex_2 vanished before elimination [2019-11-24 00:37:23,079 INFO L464 ElimStorePlain]: Eliminatee v_prenex_3 vanished before elimination [2019-11-24 00:37:23,079 INFO L464 ElimStorePlain]: Eliminatee v_prenex_4 vanished before elimination [2019-11-24 00:37:23,079 INFO L464 ElimStorePlain]: Eliminatee v_prenex_5 vanished before elimination [2019-11-24 00:37:23,079 INFO L464 ElimStorePlain]: Eliminatee v_prenex_6 vanished before elimination [2019-11-24 00:37:23,079 INFO L464 ElimStorePlain]: Eliminatee v_prenex_7 vanished before elimination [2019-11-24 00:37:23,107 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-24 00:37:23,121 INFO L343 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2019-11-24 00:37:23,122 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 37 [2019-11-24 00:37:23,123 INFO L496 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2019-11-24 00:37:23,182 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-24 00:37:23,202 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-24 00:37:23,219 INFO L343 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2019-11-24 00:37:23,220 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 37 [2019-11-24 00:37:23,220 INFO L496 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2019-11-24 00:37:23,263 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-24 00:37:23,269 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 29 [2019-11-24 00:37:23,270 INFO L496 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2019-11-24 00:37:23,307 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-24 00:37:23,315 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 29 [2019-11-24 00:37:23,315 INFO L496 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2019-11-24 00:37:23,347 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-24 00:37:23,349 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, 18 dim-2 vars, End of recursive call: and 3 xjuncts. [2019-11-24 00:37:23,350 INFO L221 ElimStorePlain]: Needed 13 recursive calls to eliminate 24 variables, input treesize:521, output treesize:26 [2019-11-24 00:37:23,386 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 00:37:23,387 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1177526282] [2019-11-24 00:37:23,409 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2019-11-24 00:37:23,409 INFO L166 IcfgInterpreter]: Building call graph [2019-11-24 00:37:23,415 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-24 00:37:23,422 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-24 00:37:23,423 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-24 00:37:32,210 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 571 DAG size of output: 566