/usr/bin/java -Xmx16000000000 -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/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe019_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 22:13:05,212 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 22:13:05,215 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 22:13:05,256 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 22:13:05,256 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 22:13:05,263 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 22:13:05,265 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 22:13:05,268 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 22:13:05,270 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 22:13:05,271 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 22:13:05,272 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 22:13:05,274 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 22:13:05,275 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 22:13:05,278 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 22:13:05,279 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 22:13:05,281 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 22:13:05,282 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 22:13:05,285 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 22:13:05,286 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 22:13:05,291 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 22:13:05,295 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 22:13:05,296 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 22:13:05,297 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 22:13:05,298 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 22:13:05,305 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-15 22:13:05,314 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 22:13:05,315 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 22:13:05,318 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 22:13:05,319 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 22:13:05,322 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 22:13:05,322 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 22:13:05,323 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 22:13:05,323 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 22:13:05,323 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 22:13:05,324 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 22:13:05,326 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 22:13:05,328 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf [2020-10-15 22:13:05,360 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 22:13:05,360 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 22:13:05,361 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 22:13:05,362 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 22:13:05,362 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 22:13:05,362 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 22:13:05,362 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 22:13:05,362 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 22:13:05,363 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 22:13:05,363 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 22:13:05,363 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 22:13:05,363 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 22:13:05,363 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 22:13:05,364 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 22:13:05,364 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 22:13:05,364 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 22:13:05,364 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 22:13:05,364 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 22:13:05,364 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 22:13:05,365 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 22:13:05,365 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 22:13:05,365 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 22:13:05,365 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 22:13:05,365 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 22:13:05,366 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 22:13:05,366 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 22:13:05,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 22:13:05,366 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 22:13:05,366 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 22:13:05,653 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 22:13:05,665 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 22:13:05,669 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 22:13:05,670 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 22:13:05,671 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 22:13:05,672 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_tso.oepc.i [2020-10-15 22:13:05,747 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbfac2818/146515cd2f674ebca099f046750e5759/FLAG2d80a57d5 [2020-10-15 22:13:06,260 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 22:13:06,261 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_tso.oepc.i [2020-10-15 22:13:06,277 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbfac2818/146515cd2f674ebca099f046750e5759/FLAG2d80a57d5 [2020-10-15 22:13:06,602 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbfac2818/146515cd2f674ebca099f046750e5759 [2020-10-15 22:13:06,611 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 22:13:06,612 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 22:13:06,613 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 22:13:06,613 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 22:13:06,617 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 22:13:06,618 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:13:06" (1/1) ... [2020-10-15 22:13:06,621 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44fad9d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:06, skipping insertion in model container [2020-10-15 22:13:06,622 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:13:06" (1/1) ... [2020-10-15 22:13:06,629 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 22:13:06,680 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 22:13:07,180 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 22:13:07,195 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 22:13:07,272 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 22:13:07,344 INFO L208 MainTranslator]: Completed translation [2020-10-15 22:13:07,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:07 WrapperNode [2020-10-15 22:13:07,345 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 22:13:07,346 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 22:13:07,346 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 22:13:07,346 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 22:13:07,355 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:07" (1/1) ... [2020-10-15 22:13:07,372 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:07" (1/1) ... [2020-10-15 22:13:07,395 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 22:13:07,396 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 22:13:07,396 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 22:13:07,396 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 22:13:07,404 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:07" (1/1) ... [2020-10-15 22:13:07,404 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:07" (1/1) ... [2020-10-15 22:13:07,407 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:07" (1/1) ... [2020-10-15 22:13:07,408 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:07" (1/1) ... [2020-10-15 22:13:07,414 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:07" (1/1) ... [2020-10-15 22:13:07,417 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:07" (1/1) ... [2020-10-15 22:13:07,419 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:07" (1/1) ... [2020-10-15 22:13:07,423 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 22:13:07,423 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 22:13:07,423 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 22:13:07,423 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 22:13:07,424 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:07" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 22:13:07,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 22:13:07,492 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-15 22:13:07,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 22:13:07,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 22:13:07,493 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-15 22:13:07,493 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-15 22:13:07,493 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-15 22:13:07,493 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-15 22:13:07,493 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-15 22:13:07,494 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-15 22:13:07,494 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-15 22:13:07,494 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-15 22:13:07,494 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-15 22:13:07,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 22:13:07,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 22:13:07,496 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-15 22:13:07,848 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 22:13:07,849 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-15 22:13:07,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:13:07 BoogieIcfgContainer [2020-10-15 22:13:07,852 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 22:13:07,853 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 22:13:07,853 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 22:13:07,856 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 22:13:07,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 10:13:06" (1/3) ... [2020-10-15 22:13:07,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d1a39a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:13:07, skipping insertion in model container [2020-10-15 22:13:07,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:07" (2/3) ... [2020-10-15 22:13:07,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d1a39a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:13:07, skipping insertion in model container [2020-10-15 22:13:07,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:13:07" (3/3) ... [2020-10-15 22:13:07,860 INFO L111 eAbstractionObserver]: Analyzing ICFG safe019_tso.oepc.i [2020-10-15 22:13:07,873 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 22:13:07,873 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 22:13:07,880 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 22:13:07,881 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 22:13:07,912 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:07,913 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:07,913 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:07,914 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:07,914 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:07,914 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:07,915 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:07,915 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:07,915 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:07,915 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:07,916 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:07,916 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:07,917 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:07,917 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:07,917 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:07,917 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:07,918 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:07,918 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:07,918 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:07,918 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:07,919 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:07,919 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:07,919 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:07,920 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:07,923 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:07,924 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:07,924 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:07,924 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:07,930 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:07,930 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:07,930 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:07,931 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:07,935 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:07,935 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:07,935 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:07,935 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:07,940 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:07,940 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:07,940 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:07,940 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:07,956 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-15 22:13:07,975 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 22:13:07,975 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 22:13:07,976 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 22:13:07,976 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 22:13:07,976 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 22:13:07,976 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 22:13:07,976 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 22:13:07,976 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 22:13:07,989 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 22:13:07,992 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 81 transitions, 182 flow [2020-10-15 22:13:07,994 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 81 transitions, 182 flow [2020-10-15 22:13:07,996 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 92 places, 81 transitions, 182 flow [2020-10-15 22:13:08,044 INFO L129 PetriNetUnfolder]: 2/77 cut-off events. [2020-10-15 22:13:08,045 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-15 22:13:08,050 INFO L80 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 77 events. 2/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-10-15 22:13:08,054 INFO L117 LiptonReduction]: Number of co-enabled transitions 1822 [2020-10-15 22:13:09,827 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-10-15 22:13:10,038 INFO L132 LiptonReduction]: Checked pairs total: 3343 [2020-10-15 22:13:10,038 INFO L134 LiptonReduction]: Total number of compositions: 67 [2020-10-15 22:13:10,045 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 25 transitions, 70 flow [2020-10-15 22:13:10,090 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 706 states. [2020-10-15 22:13:10,092 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states. [2020-10-15 22:13:10,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 22:13:10,103 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:13:10,104 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:13:10,104 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:13:10,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:13:10,111 INFO L82 PathProgramCache]: Analyzing trace with hash -2005095105, now seen corresponding path program 1 times [2020-10-15 22:13:10,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:13:10,122 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863040024] [2020-10-15 22:13:10,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:13:10,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:13:10,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:13:10,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863040024] [2020-10-15 22:13:10,338 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:13:10,338 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 22:13:10,339 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319910612] [2020-10-15 22:13:10,344 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:13:10,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:13:10,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:13:10,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:13:10,363 INFO L87 Difference]: Start difference. First operand 706 states. Second operand 3 states. [2020-10-15 22:13:10,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:13:10,428 INFO L93 Difference]: Finished difference Result 670 states and 2295 transitions. [2020-10-15 22:13:10,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:13:10,430 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-15 22:13:10,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:13:10,456 INFO L225 Difference]: With dead ends: 670 [2020-10-15 22:13:10,456 INFO L226 Difference]: Without dead ends: 526 [2020-10-15 22:13:10,458 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:13:10,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2020-10-15 22:13:10,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2020-10-15 22:13:10,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2020-10-15 22:13:10,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 1743 transitions. [2020-10-15 22:13:10,569 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 1743 transitions. Word has length 10 [2020-10-15 22:13:10,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:13:10,571 INFO L481 AbstractCegarLoop]: Abstraction has 526 states and 1743 transitions. [2020-10-15 22:13:10,571 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:13:10,572 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 1743 transitions. [2020-10-15 22:13:10,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-15 22:13:10,579 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:13:10,580 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:13:10,580 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 22:13:10,581 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:13:10,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:13:10,586 INFO L82 PathProgramCache]: Analyzing trace with hash -2027599793, now seen corresponding path program 1 times [2020-10-15 22:13:10,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:13:10,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110755008] [2020-10-15 22:13:10,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:13:10,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:13:10,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:13:10,725 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110755008] [2020-10-15 22:13:10,725 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:13:10,725 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:13:10,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816806044] [2020-10-15 22:13:10,727 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:13:10,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:13:10,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:13:10,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:13:10,728 INFO L87 Difference]: Start difference. First operand 526 states and 1743 transitions. Second operand 4 states. [2020-10-15 22:13:10,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:13:10,762 INFO L93 Difference]: Finished difference Result 682 states and 2180 transitions. [2020-10-15 22:13:10,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 22:13:10,763 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-15 22:13:10,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:13:10,767 INFO L225 Difference]: With dead ends: 682 [2020-10-15 22:13:10,768 INFO L226 Difference]: Without dead ends: 394 [2020-10-15 22:13:10,769 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:13:10,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2020-10-15 22:13:10,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2020-10-15 22:13:10,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-10-15 22:13:10,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 1224 transitions. [2020-10-15 22:13:10,792 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 1224 transitions. Word has length 11 [2020-10-15 22:13:10,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:13:10,792 INFO L481 AbstractCegarLoop]: Abstraction has 394 states and 1224 transitions. [2020-10-15 22:13:10,792 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:13:10,792 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 1224 transitions. [2020-10-15 22:13:10,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 22:13:10,794 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:13:10,794 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:13:10,794 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 22:13:10,795 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:13:10,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:13:10,795 INFO L82 PathProgramCache]: Analyzing trace with hash -1004375926, now seen corresponding path program 1 times [2020-10-15 22:13:10,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:13:10,795 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153788211] [2020-10-15 22:13:10,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:13:10,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:13:10,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:13:10,860 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153788211] [2020-10-15 22:13:10,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:13:10,861 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 22:13:10,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994564163] [2020-10-15 22:13:10,861 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:13:10,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:13:10,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:13:10,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:13:10,862 INFO L87 Difference]: Start difference. First operand 394 states and 1224 transitions. Second operand 3 states. [2020-10-15 22:13:10,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:13:10,878 INFO L93 Difference]: Finished difference Result 386 states and 1190 transitions. [2020-10-15 22:13:10,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:13:10,879 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-15 22:13:10,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:13:10,884 INFO L225 Difference]: With dead ends: 386 [2020-10-15 22:13:10,884 INFO L226 Difference]: Without dead ends: 386 [2020-10-15 22:13:10,885 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:13:10,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2020-10-15 22:13:10,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 386. [2020-10-15 22:13:10,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 386 states. [2020-10-15 22:13:10,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 1190 transitions. [2020-10-15 22:13:10,902 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 1190 transitions. Word has length 12 [2020-10-15 22:13:10,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:13:10,902 INFO L481 AbstractCegarLoop]: Abstraction has 386 states and 1190 transitions. [2020-10-15 22:13:10,903 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:13:10,903 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 1190 transitions. [2020-10-15 22:13:10,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 22:13:10,905 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:13:10,905 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:13:10,905 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 22:13:10,905 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:13:10,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:13:10,906 INFO L82 PathProgramCache]: Analyzing trace with hash -1071238165, now seen corresponding path program 1 times [2020-10-15 22:13:10,906 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:13:10,906 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121938814] [2020-10-15 22:13:10,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:13:10,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:13:10,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:13:10,948 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121938814] [2020-10-15 22:13:10,948 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:13:10,949 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:13:10,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893319850] [2020-10-15 22:13:10,949 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:13:10,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:13:10,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:13:10,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:13:10,950 INFO L87 Difference]: Start difference. First operand 386 states and 1190 transitions. Second operand 3 states. [2020-10-15 22:13:10,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:13:10,971 INFO L93 Difference]: Finished difference Result 466 states and 1378 transitions. [2020-10-15 22:13:10,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:13:10,972 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-10-15 22:13:10,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:13:10,975 INFO L225 Difference]: With dead ends: 466 [2020-10-15 22:13:10,976 INFO L226 Difference]: Without dead ends: 402 [2020-10-15 22:13:10,976 INFO L677 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 [2020-10-15 22:13:10,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2020-10-15 22:13:10,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 370. [2020-10-15 22:13:10,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 370 states. [2020-10-15 22:13:10,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 1098 transitions. [2020-10-15 22:13:10,989 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 1098 transitions. Word has length 13 [2020-10-15 22:13:10,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:13:10,989 INFO L481 AbstractCegarLoop]: Abstraction has 370 states and 1098 transitions. [2020-10-15 22:13:10,989 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:13:10,989 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 1098 transitions. [2020-10-15 22:13:10,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 22:13:10,992 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:13:10,992 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:13:10,992 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 22:13:10,992 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:13:10,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:13:10,993 INFO L82 PathProgramCache]: Analyzing trace with hash -1070883463, now seen corresponding path program 1 times [2020-10-15 22:13:10,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:13:10,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679045383] [2020-10-15 22:13:10,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:13:11,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:13:11,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:13:11,033 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679045383] [2020-10-15 22:13:11,033 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:13:11,033 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 22:13:11,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015859310] [2020-10-15 22:13:11,034 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:13:11,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:13:11,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:13:11,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:13:11,035 INFO L87 Difference]: Start difference. First operand 370 states and 1098 transitions. Second operand 3 states. [2020-10-15 22:13:11,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:13:11,043 INFO L93 Difference]: Finished difference Result 358 states and 1054 transitions. [2020-10-15 22:13:11,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:13:11,044 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-10-15 22:13:11,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:13:11,047 INFO L225 Difference]: With dead ends: 358 [2020-10-15 22:13:11,047 INFO L226 Difference]: Without dead ends: 358 [2020-10-15 22:13:11,048 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:13:11,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2020-10-15 22:13:11,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 358. [2020-10-15 22:13:11,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2020-10-15 22:13:11,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 1054 transitions. [2020-10-15 22:13:11,061 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 1054 transitions. Word has length 13 [2020-10-15 22:13:11,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:13:11,061 INFO L481 AbstractCegarLoop]: Abstraction has 358 states and 1054 transitions. [2020-10-15 22:13:11,061 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:13:11,061 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 1054 transitions. [2020-10-15 22:13:11,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-15 22:13:11,063 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:13:11,063 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:13:11,063 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 22:13:11,063 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:13:11,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:13:11,063 INFO L82 PathProgramCache]: Analyzing trace with hash 1189218785, now seen corresponding path program 1 times [2020-10-15 22:13:11,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:13:11,064 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908192742] [2020-10-15 22:13:11,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:13:11,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:13:11,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:13:11,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908192742] [2020-10-15 22:13:11,126 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:13:11,126 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:13:11,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128973470] [2020-10-15 22:13:11,126 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:13:11,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:13:11,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:13:11,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:13:11,127 INFO L87 Difference]: Start difference. First operand 358 states and 1054 transitions. Second operand 4 states. [2020-10-15 22:13:11,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:13:11,154 INFO L93 Difference]: Finished difference Result 514 states and 1482 transitions. [2020-10-15 22:13:11,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 22:13:11,155 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-15 22:13:11,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:13:11,157 INFO L225 Difference]: With dead ends: 514 [2020-10-15 22:13:11,158 INFO L226 Difference]: Without dead ends: 274 [2020-10-15 22:13:11,158 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:13:11,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-10-15 22:13:11,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2020-10-15 22:13:11,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2020-10-15 22:13:11,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 775 transitions. [2020-10-15 22:13:11,168 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 775 transitions. Word has length 14 [2020-10-15 22:13:11,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:13:11,168 INFO L481 AbstractCegarLoop]: Abstraction has 274 states and 775 transitions. [2020-10-15 22:13:11,169 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:13:11,169 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 775 transitions. [2020-10-15 22:13:11,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-15 22:13:11,170 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:13:11,170 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:13:11,170 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 22:13:11,170 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:13:11,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:13:11,171 INFO L82 PathProgramCache]: Analyzing trace with hash 1162350155, now seen corresponding path program 2 times [2020-10-15 22:13:11,171 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:13:11,171 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628440531] [2020-10-15 22:13:11,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:13:11,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:13:11,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:13:11,247 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628440531] [2020-10-15 22:13:11,247 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:13:11,247 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:13:11,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379018639] [2020-10-15 22:13:11,248 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:13:11,248 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:13:11,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:13:11,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:13:11,249 INFO L87 Difference]: Start difference. First operand 274 states and 775 transitions. Second operand 4 states. [2020-10-15 22:13:11,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:13:11,296 INFO L93 Difference]: Finished difference Result 345 states and 911 transitions. [2020-10-15 22:13:11,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 22:13:11,297 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-15 22:13:11,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:13:11,299 INFO L225 Difference]: With dead ends: 345 [2020-10-15 22:13:11,299 INFO L226 Difference]: Without dead ends: 252 [2020-10-15 22:13:11,300 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:13:11,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2020-10-15 22:13:11,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2020-10-15 22:13:11,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2020-10-15 22:13:11,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 675 transitions. [2020-10-15 22:13:11,309 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 675 transitions. Word has length 14 [2020-10-15 22:13:11,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:13:11,310 INFO L481 AbstractCegarLoop]: Abstraction has 252 states and 675 transitions. [2020-10-15 22:13:11,310 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:13:11,310 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 675 transitions. [2020-10-15 22:13:11,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 22:13:11,311 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:13:11,311 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:13:11,311 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 22:13:11,312 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:13:11,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:13:11,312 INFO L82 PathProgramCache]: Analyzing trace with hash 1647463604, now seen corresponding path program 1 times [2020-10-15 22:13:11,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:13:11,313 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807568952] [2020-10-15 22:13:11,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:13:11,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:13:11,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:13:11,384 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807568952] [2020-10-15 22:13:11,385 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:13:11,385 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:13:11,385 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694628550] [2020-10-15 22:13:11,386 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:13:11,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:13:11,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:13:11,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:13:11,387 INFO L87 Difference]: Start difference. First operand 252 states and 675 transitions. Second operand 5 states. [2020-10-15 22:13:11,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:13:11,460 INFO L93 Difference]: Finished difference Result 278 states and 685 transitions. [2020-10-15 22:13:11,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:13:11,461 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-15 22:13:11,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:13:11,463 INFO L225 Difference]: With dead ends: 278 [2020-10-15 22:13:11,463 INFO L226 Difference]: Without dead ends: 203 [2020-10-15 22:13:11,464 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 22:13:11,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2020-10-15 22:13:11,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2020-10-15 22:13:11,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-10-15 22:13:11,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 492 transitions. [2020-10-15 22:13:11,470 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 492 transitions. Word has length 15 [2020-10-15 22:13:11,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:13:11,471 INFO L481 AbstractCegarLoop]: Abstraction has 203 states and 492 transitions. [2020-10-15 22:13:11,471 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:13:11,471 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 492 transitions. [2020-10-15 22:13:11,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-15 22:13:11,472 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:13:11,472 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:13:11,473 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 22:13:11,473 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:13:11,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:13:11,473 INFO L82 PathProgramCache]: Analyzing trace with hash -469082430, now seen corresponding path program 1 times [2020-10-15 22:13:11,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:13:11,474 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609098839] [2020-10-15 22:13:11,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:13:11,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:13:11,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:13:11,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609098839] [2020-10-15 22:13:11,549 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:13:11,549 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 22:13:11,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166576832] [2020-10-15 22:13:11,550 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 22:13:11,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:13:11,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 22:13:11,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 22:13:11,551 INFO L87 Difference]: Start difference. First operand 203 states and 492 transitions. Second operand 6 states. [2020-10-15 22:13:11,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:13:11,614 INFO L93 Difference]: Finished difference Result 200 states and 461 transitions. [2020-10-15 22:13:11,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 22:13:11,615 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-10-15 22:13:11,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:13:11,616 INFO L225 Difference]: With dead ends: 200 [2020-10-15 22:13:11,616 INFO L226 Difference]: Without dead ends: 162 [2020-10-15 22:13:11,617 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:13:11,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-10-15 22:13:11,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2020-10-15 22:13:11,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-10-15 22:13:11,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 375 transitions. [2020-10-15 22:13:11,622 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 375 transitions. Word has length 16 [2020-10-15 22:13:11,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:13:11,623 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 375 transitions. [2020-10-15 22:13:11,623 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 22:13:11,623 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 375 transitions. [2020-10-15 22:13:11,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-15 22:13:11,624 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:13:11,624 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:13:11,624 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 22:13:11,624 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:13:11,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:13:11,625 INFO L82 PathProgramCache]: Analyzing trace with hash 1305224855, now seen corresponding path program 1 times [2020-10-15 22:13:11,625 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:13:11,625 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144761957] [2020-10-15 22:13:11,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:13:11,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:13:11,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:13:11,655 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144761957] [2020-10-15 22:13:11,655 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:13:11,656 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:13:11,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965496957] [2020-10-15 22:13:11,656 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:13:11,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:13:11,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:13:11,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:13:11,657 INFO L87 Difference]: Start difference. First operand 162 states and 375 transitions. Second operand 4 states. [2020-10-15 22:13:11,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:13:11,676 INFO L93 Difference]: Finished difference Result 194 states and 439 transitions. [2020-10-15 22:13:11,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 22:13:11,676 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-15 22:13:11,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:13:11,677 INFO L225 Difference]: With dead ends: 194 [2020-10-15 22:13:11,677 INFO L226 Difference]: Without dead ends: 127 [2020-10-15 22:13:11,678 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:13:11,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-10-15 22:13:11,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 125. [2020-10-15 22:13:11,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-10-15 22:13:11,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 265 transitions. [2020-10-15 22:13:11,682 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 265 transitions. Word has length 18 [2020-10-15 22:13:11,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:13:11,683 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 265 transitions. [2020-10-15 22:13:11,683 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:13:11,683 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 265 transitions. [2020-10-15 22:13:11,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-15 22:13:11,684 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:13:11,684 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:13:11,684 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 22:13:11,684 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:13:11,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:13:11,685 INFO L82 PathProgramCache]: Analyzing trace with hash 483879941, now seen corresponding path program 2 times [2020-10-15 22:13:11,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:13:11,685 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017446467] [2020-10-15 22:13:11,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:13:11,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:13:11,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:13:11,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017446467] [2020-10-15 22:13:11,756 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:13:11,756 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:13:11,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742151193] [2020-10-15 22:13:11,757 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:13:11,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:13:11,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:13:11,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:13:11,758 INFO L87 Difference]: Start difference. First operand 125 states and 265 transitions. Second operand 7 states. [2020-10-15 22:13:11,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:13:11,819 INFO L93 Difference]: Finished difference Result 120 states and 253 transitions. [2020-10-15 22:13:11,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-15 22:13:11,820 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-10-15 22:13:11,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:13:11,821 INFO L225 Difference]: With dead ends: 120 [2020-10-15 22:13:11,821 INFO L226 Difference]: Without dead ends: 71 [2020-10-15 22:13:11,821 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-15 22:13:11,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-10-15 22:13:11,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-10-15 22:13:11,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-10-15 22:13:11,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 143 transitions. [2020-10-15 22:13:11,824 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 143 transitions. Word has length 18 [2020-10-15 22:13:11,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:13:11,824 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 143 transitions. [2020-10-15 22:13:11,824 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:13:11,825 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 143 transitions. [2020-10-15 22:13:11,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-15 22:13:11,825 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:13:11,825 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:13:11,825 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 22:13:11,826 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:13:11,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:13:11,826 INFO L82 PathProgramCache]: Analyzing trace with hash 1087350585, now seen corresponding path program 1 times [2020-10-15 22:13:11,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:13:11,826 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904354114] [2020-10-15 22:13:11,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:13:11,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:13:11,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:13:11,857 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904354114] [2020-10-15 22:13:11,857 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:13:11,858 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:13:11,858 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356774919] [2020-10-15 22:13:11,858 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:13:11,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:13:11,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:13:11,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:13:11,859 INFO L87 Difference]: Start difference. First operand 71 states and 143 transitions. Second operand 4 states. [2020-10-15 22:13:11,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:13:11,870 INFO L93 Difference]: Finished difference Result 70 states and 142 transitions. [2020-10-15 22:13:11,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 22:13:11,870 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-10-15 22:13:11,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:13:11,871 INFO L225 Difference]: With dead ends: 70 [2020-10-15 22:13:11,871 INFO L226 Difference]: Without dead ends: 0 [2020-10-15 22:13:11,871 INFO L677 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 [2020-10-15 22:13:11,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-15 22:13:11,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-15 22:13:11,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-15 22:13:11,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-15 22:13:11,872 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-10-15 22:13:11,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:13:11,872 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-15 22:13:11,872 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:13:11,873 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-15 22:13:11,873 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-15 22:13:11,873 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-15 22:13:11,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 10:13:11 BasicIcfg [2020-10-15 22:13:11,877 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 22:13:11,878 INFO L168 Benchmark]: Toolchain (without parser) took 5266.40 ms. Allocated memory was 253.2 MB in the beginning and 421.0 MB in the end (delta: 167.8 MB). Free memory was 205.4 MB in the beginning and 308.6 MB in the end (delta: -103.2 MB). Peak memory consumption was 64.6 MB. Max. memory is 14.2 GB. [2020-10-15 22:13:11,879 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 253.2 MB. Free memory is still 227.1 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 22:13:11,880 INFO L168 Benchmark]: CACSL2BoogieTranslator took 732.19 ms. Allocated memory was 253.2 MB in the beginning and 319.8 MB in the end (delta: 66.6 MB). Free memory was 205.4 MB in the beginning and 272.4 MB in the end (delta: -67.0 MB). Peak memory consumption was 30.5 MB. Max. memory is 14.2 GB. [2020-10-15 22:13:11,881 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.03 ms. Allocated memory is still 319.8 MB. Free memory was 272.4 MB in the beginning and 269.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 22:13:11,881 INFO L168 Benchmark]: Boogie Preprocessor took 26.83 ms. Allocated memory is still 319.8 MB. Free memory is still 269.9 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 22:13:11,882 INFO L168 Benchmark]: RCFGBuilder took 428.54 ms. Allocated memory is still 319.8 MB. Free memory was 269.9 MB in the beginning and 245.6 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 14.2 GB. [2020-10-15 22:13:11,883 INFO L168 Benchmark]: TraceAbstraction took 4023.90 ms. Allocated memory was 319.8 MB in the beginning and 421.0 MB in the end (delta: 101.2 MB). Free memory was 245.6 MB in the beginning and 308.6 MB in the end (delta: -63.0 MB). Peak memory consumption was 38.2 MB. Max. memory is 14.2 GB. [2020-10-15 22:13:11,886 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 253.2 MB. Free memory is still 227.1 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 732.19 ms. Allocated memory was 253.2 MB in the beginning and 319.8 MB in the end (delta: 66.6 MB). Free memory was 205.4 MB in the beginning and 272.4 MB in the end (delta: -67.0 MB). Peak memory consumption was 30.5 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 50.03 ms. Allocated memory is still 319.8 MB. Free memory was 272.4 MB in the beginning and 269.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 26.83 ms. Allocated memory is still 319.8 MB. Free memory is still 269.9 MB. There was no memory consumed. Max. memory is 14.2 GB. * RCFGBuilder took 428.54 ms. Allocated memory is still 319.8 MB. Free memory was 269.9 MB in the beginning and 245.6 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 14.2 GB. * TraceAbstraction took 4023.90 ms. Allocated memory was 319.8 MB in the beginning and 421.0 MB in the end (delta: 101.2 MB). Free memory was 245.6 MB in the beginning and 308.6 MB in the end (delta: -63.0 MB). Peak memory consumption was 38.2 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1203 VarBasedMoverChecksPositive, 62 VarBasedMoverChecksNegative, 18 SemBasedMoverChecksPositive, 44 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 104 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.0s, 92 PlacesBefore, 38 PlacesAfterwards, 81 TransitionsBefore, 25 TransitionsAfterwards, 1822 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 67 TotalNumberOfCompositions, 3343 MoverChecksTotal - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 80 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.9s, OverallIterations: 12, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 258 SDtfs, 237 SDslu, 349 SDs, 0 SdLazy, 196 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=706occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 34 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 174 NumberOfCodeBlocks, 174 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 162 ConstructedInterpolants, 0 QuantifiedInterpolants, 6430 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...