/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/ldv-commit-tester/main3_drivers-staging-usbip-vhci-hcd-ko--132_1a--927c3fa.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 01:00:18,076 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 01:00:18,079 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 01:00:18,098 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 01:00:18,099 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 01:00:18,101 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 01:00:18,103 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 01:00:18,112 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 01:00:18,116 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 01:00:18,119 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 01:00:18,121 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 01:00:18,123 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 01:00:18,123 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 01:00:18,125 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 01:00:18,128 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 01:00:18,129 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 01:00:18,131 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 01:00:18,132 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 01:00:18,134 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 01:00:18,139 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 01:00:18,144 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 01:00:18,148 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 01:00:18,149 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 01:00:18,150 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 01:00:18,152 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-24 01:00:18,157 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 01:00:18,158 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 01:00:18,159 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 01:00:18,160 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 01:00:18,161 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 01:00:18,161 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 01:00:18,162 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 01:00:18,162 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 01:00:18,163 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 01:00:18,163 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 01:00:18,165 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 01:00:18,166 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 01:00:18,180 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 01:00:18,181 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 01:00:18,181 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 01:00:18,182 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 01:00:18,182 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 01:00:18,182 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 01:00:18,182 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 01:00:18,183 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 01:00:18,183 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 01:00:18,183 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 01:00:18,183 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 01:00:18,183 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 01:00:18,184 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 01:00:18,184 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 01:00:18,184 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 01:00:18,185 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 01:00:18,185 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 01:00:18,185 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 01:00:18,185 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 01:00:18,186 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 01:00:18,186 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 01:00:18,186 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 01:00:18,186 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 01:00:18,186 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 01:00:18,187 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 01:00:18,187 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 01:00:18,187 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 01:00:18,187 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 01:00:18,187 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 01:00:18,188 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 01:00:18,188 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 01:00:18,188 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 01:00:18,188 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 01:00:18,188 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 01:00:18,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 01:00:18,189 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 01:00:18,189 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 01:00:18,189 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 01:00:18,528 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 01:00:18,554 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 01:00:18,558 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 01:00:18,560 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 01:00:18,560 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 01:00:18,561 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-commit-tester/main3_drivers-staging-usbip-vhci-hcd-ko--132_1a--927c3fa.i [2019-11-24 01:00:18,641 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6398b895/2aec4cd02e2b4879a18cf11e1abd7d25/FLAG213316dd0 [2019-11-24 01:00:19,489 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 01:00:19,491 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-commit-tester/main3_drivers-staging-usbip-vhci-hcd-ko--132_1a--927c3fa.i [2019-11-24 01:00:19,537 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6398b895/2aec4cd02e2b4879a18cf11e1abd7d25/FLAG213316dd0 [2019-11-24 01:00:20,033 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6398b895/2aec4cd02e2b4879a18cf11e1abd7d25 [2019-11-24 01:00:20,042 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 01:00:20,044 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 01:00:20,045 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 01:00:20,046 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 01:00:20,050 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 01:00:20,052 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:00:20" (1/1) ... [2019-11-24 01:00:20,055 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@579deee8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:00:20, skipping insertion in model container [2019-11-24 01:00:20,055 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:00:20" (1/1) ... [2019-11-24 01:00:20,064 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 01:00:20,212 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 01:00:22,478 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 01:00:22,526 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 01:00:22,958 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 01:00:23,189 INFO L208 MainTranslator]: Completed translation [2019-11-24 01:00:23,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:00:23 WrapperNode [2019-11-24 01:00:23,190 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 01:00:23,191 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 01:00:23,191 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 01:00:23,191 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 01:00:23,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:00:23" (1/1) ... [2019-11-24 01:00:23,319 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:00:23" (1/1) ... [2019-11-24 01:00:23,481 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 01:00:23,482 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 01:00:23,482 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 01:00:23,482 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 01:00:23,493 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:00:23" (1/1) ... [2019-11-24 01:00:23,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:00:23" (1/1) ... [2019-11-24 01:00:23,527 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:00:23" (1/1) ... [2019-11-24 01:00:23,527 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:00:23" (1/1) ... [2019-11-24 01:00:23,650 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:00:23" (1/1) ... [2019-11-24 01:00:23,680 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:00:23" (1/1) ... [2019-11-24 01:00:23,707 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:00:23" (1/1) ... [2019-11-24 01:00:23,734 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 01:00:23,735 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 01:00:23,735 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 01:00:23,735 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 01:00:23,736 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:00:23" (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 01:00:23,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-24 01:00:23,898 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-24 01:00:23,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-24 01:00:23,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-24 01:00:23,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-24 01:00:23,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-24 01:00:23,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-24 01:00:23,899 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2019-11-24 01:00:23,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-24 01:00:23,900 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-11-24 01:00:23,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-24 01:00:23,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 01:00:23,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 01:01:36,202 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 01:01:36,202 INFO L284 CfgBuilder]: Removed 666 assume(true) statements. [2019-11-24 01:01:36,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:01:36 BoogieIcfgContainer [2019-11-24 01:01:36,203 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 01:01:36,204 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-24 01:01:36,205 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-24 01:01:36,207 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-24 01:01:36,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:00:20" (1/3) ... [2019-11-24 01:01:36,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b822bde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:01:36, skipping insertion in model container [2019-11-24 01:01:36,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:00:23" (2/3) ... [2019-11-24 01:01:36,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b822bde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:01:36, skipping insertion in model container [2019-11-24 01:01:36,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:01:36" (3/3) ... [2019-11-24 01:01:36,210 INFO L109 eAbstractionObserver]: Analyzing ICFG main3_drivers-staging-usbip-vhci-hcd-ko--132_1a--927c3fa.i [2019-11-24 01:01:36,217 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-24 01:01:36,226 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-11-24 01:01:36,235 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-24 01:01:36,258 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-24 01:01:36,258 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-24 01:01:36,258 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-24 01:01:36,258 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-24 01:01:36,259 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-24 01:01:36,259 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-24 01:01:36,259 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-24 01:01:36,259 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-24 01:01:36,277 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states. [2019-11-24 01:01:36,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-24 01:01:36,283 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 01:01:36,284 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-24 01:01:36,285 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 01:01:36,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 01:01:36,291 INFO L82 PathProgramCache]: Analyzing trace with hash 752058367, now seen corresponding path program 1 times [2019-11-24 01:01:36,298 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 01:01:36,299 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404649662] [2019-11-24 01:01:36,299 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 01:01:36,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 01:01:37,208 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 01:01:37,209 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404649662] [2019-11-24 01:01:37,210 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 01:01:37,210 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-24 01:01:37,211 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748768615] [2019-11-24 01:01:37,215 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-24 01:01:37,216 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 01:01:37,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-24 01:01:37,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 01:01:37,233 INFO L87 Difference]: Start difference. First operand 129 states. Second operand 3 states. [2019-11-24 01:01:37,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 01:01:37,388 INFO L93 Difference]: Finished difference Result 307 states and 499 transitions. [2019-11-24 01:01:37,389 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-24 01:01:37,391 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-11-24 01:01:37,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 01:01:37,419 INFO L225 Difference]: With dead ends: 307 [2019-11-24 01:01:37,419 INFO L226 Difference]: Without dead ends: 177 [2019-11-24 01:01:37,426 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 01:01:37,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2019-11-24 01:01:37,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 171. [2019-11-24 01:01:37,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2019-11-24 01:01:37,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 271 transitions. [2019-11-24 01:01:37,520 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 271 transitions. Word has length 6 [2019-11-24 01:01:37,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 01:01:37,521 INFO L462 AbstractCegarLoop]: Abstraction has 171 states and 271 transitions. [2019-11-24 01:01:37,521 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-24 01:01:37,521 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 271 transitions. [2019-11-24 01:01:37,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-24 01:01:37,524 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 01:01:37,525 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 01:01:37,525 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 01:01:37,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 01:01:37,526 INFO L82 PathProgramCache]: Analyzing trace with hash 1489308618, now seen corresponding path program 1 times [2019-11-24 01:01:37,526 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 01:01:37,527 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628403864] [2019-11-24 01:01:37,527 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 01:01:37,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 01:01:37,963 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 01:01:37,965 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628403864] [2019-11-24 01:01:37,966 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 01:01:37,966 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-24 01:01:37,966 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705387744] [2019-11-24 01:01:37,968 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-24 01:01:37,968 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 01:01:37,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-24 01:01:37,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-24 01:01:37,969 INFO L87 Difference]: Start difference. First operand 171 states and 271 transitions. Second operand 4 states. [2019-11-24 01:01:46,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 01:01:46,375 INFO L93 Difference]: Finished difference Result 337 states and 534 transitions. [2019-11-24 01:01:46,376 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-24 01:01:46,376 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2019-11-24 01:01:46,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 01:01:46,378 INFO L225 Difference]: With dead ends: 337 [2019-11-24 01:01:46,378 INFO L226 Difference]: Without dead ends: 171 [2019-11-24 01:01:46,380 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-24 01:01:46,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2019-11-24 01:01:46,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2019-11-24 01:01:46,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2019-11-24 01:01:46,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 270 transitions. [2019-11-24 01:01:46,394 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 270 transitions. Word has length 19 [2019-11-24 01:01:46,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 01:01:46,395 INFO L462 AbstractCegarLoop]: Abstraction has 171 states and 270 transitions. [2019-11-24 01:01:46,395 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-24 01:01:46,395 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 270 transitions. [2019-11-24 01:01:46,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-24 01:01:46,396 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 01:01:46,396 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 01:01:46,397 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 01:01:46,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 01:01:46,397 INFO L82 PathProgramCache]: Analyzing trace with hash 198108858, now seen corresponding path program 1 times [2019-11-24 01:01:46,397 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 01:01:46,398 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156136191] [2019-11-24 01:01:46,398 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY