/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/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-McrStrategy.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin001_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 20:06:31,874 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 20:06:31,876 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 20:06:31,893 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 20:06:31,893 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 20:06:31,894 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 20:06:31,895 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 20:06:31,897 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 20:06:31,899 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 20:06:31,900 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 20:06:31,901 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 20:06:31,902 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 20:06:31,902 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 20:06:31,903 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 20:06:31,904 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 20:06:31,905 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 20:06:31,906 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 20:06:31,907 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 20:06:31,909 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 20:06:31,911 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 20:06:31,912 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 20:06:31,913 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 20:06:31,914 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 20:06:31,915 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 20:06:31,917 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 20:06:31,917 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 20:06:31,918 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 20:06:31,919 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 20:06:31,919 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 20:06:31,920 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 20:06:31,920 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 20:06:31,921 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 20:06:31,922 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 20:06:31,922 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 20:06:31,923 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 20:06:31,924 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 20:06:31,924 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 20:06:31,925 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 20:06:31,925 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 20:06:31,926 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 20:06:31,926 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 20:06:31,927 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-NoLbe-McrStrategy.epf [2020-04-18 20:06:31,943 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 20:06:31,943 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 20:06:31,947 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 20:06:31,947 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 20:06:31,947 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 20:06:31,947 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 20:06:31,947 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 20:06:31,948 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 20:06:31,948 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 20:06:31,949 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 20:06:31,949 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 20:06:31,949 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 20:06:31,949 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 20:06:31,949 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 20:06:31,950 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 20:06:31,950 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 20:06:31,950 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 20:06:31,950 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 20:06:31,950 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 20:06:31,951 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 20:06:31,951 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 20:06:31,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 20:06:31,952 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 20:06:31,953 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 20:06:31,953 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 20:06:31,953 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 20:06:31,953 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 20:06:31,954 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-04-18 20:06:31,954 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 20:06:31,954 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 20:06:31,955 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 20:06:32,236 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 20:06:32,254 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 20:06:32,257 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 20:06:32,258 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 20:06:32,259 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 20:06:32,260 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin001_tso.opt.i [2020-04-18 20:06:32,334 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d70cde1c/dd3bc10840a34d2a87446b99965ddce8/FLAGa652d4f91 [2020-04-18 20:06:32,902 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 20:06:32,902 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin001_tso.opt.i [2020-04-18 20:06:32,916 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d70cde1c/dd3bc10840a34d2a87446b99965ddce8/FLAGa652d4f91 [2020-04-18 20:06:33,177 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d70cde1c/dd3bc10840a34d2a87446b99965ddce8 [2020-04-18 20:06:33,186 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 20:06:33,209 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 20:06:33,210 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 20:06:33,210 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 20:06:33,214 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 20:06:33,215 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:06:33" (1/1) ... [2020-04-18 20:06:33,218 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ef2113b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:06:33, skipping insertion in model container [2020-04-18 20:06:33,218 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:06:33" (1/1) ... [2020-04-18 20:06:33,226 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 20:06:33,287 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 20:06:33,752 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 20:06:33,766 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 20:06:33,811 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 20:06:33,894 INFO L208 MainTranslator]: Completed translation [2020-04-18 20:06:33,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:06:33 WrapperNode [2020-04-18 20:06:33,895 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 20:06:33,896 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 20:06:33,896 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 20:06:33,897 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 20:06:33,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:06:33" (1/1) ... [2020-04-18 20:06:33,924 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:06:33" (1/1) ... [2020-04-18 20:06:33,950 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 20:06:33,951 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 20:06:33,951 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 20:06:33,951 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 20:06:33,960 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:06:33" (1/1) ... [2020-04-18 20:06:33,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:06:33" (1/1) ... [2020-04-18 20:06:33,964 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:06:33" (1/1) ... [2020-04-18 20:06:33,964 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:06:33" (1/1) ... [2020-04-18 20:06:33,970 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:06:33" (1/1) ... [2020-04-18 20:06:33,973 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:06:33" (1/1) ... [2020-04-18 20:06:33,975 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:06:33" (1/1) ... [2020-04-18 20:06:33,978 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 20:06:33,978 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 20:06:33,978 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 20:06:33,979 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 20:06:33,980 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:06:33" (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 [2020-04-18 20:06:34,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 20:06:34,043 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 20:06:34,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 20:06:34,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 20:06:34,043 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-18 20:06:34,043 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-18 20:06:34,044 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-18 20:06:34,044 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-18 20:06:34,044 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-18 20:06:34,044 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-18 20:06:34,044 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 20:06:34,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 20:06:34,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 20:06:34,046 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-18 20:06:34,447 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 20:06:34,447 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 20:06:34,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:06:34 BoogieIcfgContainer [2020-04-18 20:06:34,454 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 20:06:34,455 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 20:06:34,455 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 20:06:34,461 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 20:06:34,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 08:06:33" (1/3) ... [2020-04-18 20:06:34,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73be897a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:06:34, skipping insertion in model container [2020-04-18 20:06:34,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:06:33" (2/3) ... [2020-04-18 20:06:34,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73be897a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:06:34, skipping insertion in model container [2020-04-18 20:06:34,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:06:34" (3/3) ... [2020-04-18 20:06:34,465 INFO L109 eAbstractionObserver]: Analyzing ICFG thin001_tso.opt.i [2020-04-18 20:06:34,473 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 20:06:34,473 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 20:06:34,479 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 20:06:34,480 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 20:06:34,506 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:34,506 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:34,506 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:34,507 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:34,507 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:34,508 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:34,508 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:34,508 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:34,509 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:34,509 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:34,509 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:34,510 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:34,510 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:34,510 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:34,511 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:34,511 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:34,511 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:34,511 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:34,516 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:34,516 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:34,516 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:34,517 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:34,523 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:34,523 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:34,523 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:34,524 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:34,529 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:34,529 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:34,529 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:34,530 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:34,550 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-18 20:06:34,570 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 20:06:34,570 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 20:06:34,571 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 20:06:34,571 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 20:06:34,571 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 20:06:34,571 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 20:06:34,571 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 20:06:34,572 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 20:06:34,585 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 79 places, 71 transitions, 157 flow [2020-04-18 20:06:35,158 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 8473 states. [2020-04-18 20:06:35,161 INFO L276 IsEmpty]: Start isEmpty. Operand 8473 states. [2020-04-18 20:06:35,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-04-18 20:06:35,198 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:06:35,199 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 20:06:35,199 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:06:35,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:06:35,206 INFO L82 PathProgramCache]: Analyzing trace with hash 642340523, now seen corresponding path program 1 times [2020-04-18 20:06:35,212 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:06:35,212 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1875043017] [2020-04-18 20:06:35,228 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:06:35,245 INFO L259 McrAutomatonBuilder]: Finished intersection with 38 states and 37 transitions. [2020-04-18 20:06:35,247 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-04-18 20:06:35,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-04-18 20:06:35,248 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:06:35,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:06:35,249 INFO L82 PathProgramCache]: Analyzing trace with hash 642340523, now seen corresponding path program 2 times [2020-04-18 20:06:35,252 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:06:35,253 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020201687] [2020-04-18 20:06:35,253 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:06:35,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:06:35,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 20:06:35,771 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020201687] [2020-04-18 20:06:35,772 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:06:35,772 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 20:06:35,774 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:06:35,777 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:06:35,784 INFO L259 McrAutomatonBuilder]: Finished intersection with 38 states and 37 transitions. [2020-04-18 20:06:35,784 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:06:35,835 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 20:06:35,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 20:06:35,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 20:06:35,841 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 6 states. [2020-04-18 20:06:35,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:06:35,950 INFO L93 Difference]: Finished difference Result 38 states and 37 transitions. [2020-04-18 20:06:35,951 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 37 transitions. [2020-04-18 20:06:35,951 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:06:35,952 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1875043017] [2020-04-18 20:06:35,953 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:06:35,953 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-04-18 20:06:35,953 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1875043017] [2020-04-18 20:06:35,955 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 20:06:35,955 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:06:35,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 20:06:35,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-04-18 20:06:35,961 INFO L87 Difference]: Start difference. First operand 8473 states. Second operand 6 states. [2020-04-18 20:06:36,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:06:36,314 INFO L93 Difference]: Finished difference Result 13147 states and 45961 transitions. [2020-04-18 20:06:36,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-04-18 20:06:36,317 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2020-04-18 20:06:36,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:06:36,386 INFO L225 Difference]: With dead ends: 13147 [2020-04-18 20:06:36,386 INFO L226 Difference]: Without dead ends: 4652 [2020-04-18 20:06:36,392 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-04-18 20:06:36,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4652 states. [2020-04-18 20:06:36,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4652 to 4652. [2020-04-18 20:06:36,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4652 states. [2020-04-18 20:06:36,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4652 states to 4652 states and 15991 transitions. [2020-04-18 20:06:36,681 INFO L78 Accepts]: Start accepts. Automaton has 4652 states and 15991 transitions. Word has length 37 [2020-04-18 20:06:36,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:06:36,684 INFO L479 AbstractCegarLoop]: Abstraction has 4652 states and 15991 transitions. [2020-04-18 20:06:36,687 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 20:06:36,687 INFO L276 IsEmpty]: Start isEmpty. Operand 4652 states and 15991 transitions. [2020-04-18 20:06:36,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-04-18 20:06:36,703 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:06:36,710 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 20:06:36,711 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:06:36,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:06:36,711 INFO L82 PathProgramCache]: Analyzing trace with hash 240380524, now seen corresponding path program 1 times [2020-04-18 20:06:36,711 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:06:36,712 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [305498497] [2020-04-18 20:06:36,713 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:06:36,716 INFO L259 McrAutomatonBuilder]: Finished intersection with 80 states and 119 transitions. [2020-04-18 20:06:36,720 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2020-04-18 20:06:36,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-04-18 20:06:36,720 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:06:36,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:06:36,721 INFO L82 PathProgramCache]: Analyzing trace with hash 240380524, now seen corresponding path program 2 times [2020-04-18 20:06:36,721 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:06:36,722 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658441772] [2020-04-18 20:06:36,722 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:06:36,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:06:36,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 20:06:36,948 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658441772] [2020-04-18 20:06:36,949 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:06:36,949 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 20:06:36,949 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:06:37,009 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:06:37,020 INFO L259 McrAutomatonBuilder]: Finished intersection with 68 states and 95 transitions. [2020-04-18 20:06:37,020 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:06:37,102 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 20:06:37,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 20:06:37,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-18 20:06:37,103 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 7 states. [2020-04-18 20:06:37,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:06:37,168 INFO L93 Difference]: Finished difference Result 80 states and 119 transitions. [2020-04-18 20:06:37,169 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 119 transitions. [2020-04-18 20:06:37,169 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:06:37,169 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [305498497] [2020-04-18 20:06:37,170 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:06:37,170 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 20:06:37,170 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [305498497] [2020-04-18 20:06:37,171 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 20:06:37,171 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:06:37,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 20:06:37,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-04-18 20:06:37,172 INFO L87 Difference]: Start difference. First operand 4652 states and 15991 transitions. Second operand 7 states. [2020-04-18 20:06:37,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:06:37,319 INFO L93 Difference]: Finished difference Result 5372 states and 18242 transitions. [2020-04-18 20:06:37,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-04-18 20:06:37,320 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 39 [2020-04-18 20:06:37,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:06:37,351 INFO L225 Difference]: With dead ends: 5372 [2020-04-18 20:06:37,352 INFO L226 Difference]: Without dead ends: 4112 [2020-04-18 20:06:37,353 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-04-18 20:06:37,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4112 states. [2020-04-18 20:06:37,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4112 to 4112. [2020-04-18 20:06:37,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4112 states. [2020-04-18 20:06:37,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4112 states to 4112 states and 13999 transitions. [2020-04-18 20:06:37,492 INFO L78 Accepts]: Start accepts. Automaton has 4112 states and 13999 transitions. Word has length 39 [2020-04-18 20:06:37,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:06:37,492 INFO L479 AbstractCegarLoop]: Abstraction has 4112 states and 13999 transitions. [2020-04-18 20:06:37,493 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 20:06:37,493 INFO L276 IsEmpty]: Start isEmpty. Operand 4112 states and 13999 transitions. [2020-04-18 20:06:37,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-04-18 20:06:37,500 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:06:37,500 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 20:06:37,501 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:06:37,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:06:37,501 INFO L82 PathProgramCache]: Analyzing trace with hash -1426036756, now seen corresponding path program 1 times [2020-04-18 20:06:37,501 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:06:37,502 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1732018788] [2020-04-18 20:06:37,503 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:06:37,505 INFO L259 McrAutomatonBuilder]: Finished intersection with 72 states and 103 transitions. [2020-04-18 20:06:37,505 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states. [2020-04-18 20:06:37,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-04-18 20:06:37,506 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:06:37,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:06:37,506 INFO L82 PathProgramCache]: Analyzing trace with hash -1426036756, now seen corresponding path program 2 times [2020-04-18 20:06:37,507 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:06:37,507 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101270350] [2020-04-18 20:06:37,507 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:06:37,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:06:37,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 20:06:37,641 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101270350] [2020-04-18 20:06:37,641 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:06:37,641 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 20:06:37,642 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:06:37,645 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:06:37,651 INFO L259 McrAutomatonBuilder]: Finished intersection with 60 states and 79 transitions. [2020-04-18 20:06:37,651 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:06:37,798 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 20:06:37,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 20:06:37,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-04-18 20:06:37,799 INFO L87 Difference]: Start difference. First operand 72 states. Second operand 7 states. [2020-04-18 20:06:37,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:06:37,921 INFO L93 Difference]: Finished difference Result 72 states and 103 transitions. [2020-04-18 20:06:37,921 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 103 transitions. [2020-04-18 20:06:37,921 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:06:37,922 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1732018788] [2020-04-18 20:06:37,922 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:06:37,922 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 20:06:37,922 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1732018788] [2020-04-18 20:06:37,923 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 20:06:37,923 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:06:37,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 20:06:37,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-04-18 20:06:37,924 INFO L87 Difference]: Start difference. First operand 4112 states and 13999 transitions. Second operand 7 states. [2020-04-18 20:06:38,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:06:38,214 INFO L93 Difference]: Finished difference Result 7547 states and 25432 transitions. [2020-04-18 20:06:38,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-04-18 20:06:38,214 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 39 [2020-04-18 20:06:38,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:06:38,276 INFO L225 Difference]: With dead ends: 7547 [2020-04-18 20:06:38,276 INFO L226 Difference]: Without dead ends: 4792 [2020-04-18 20:06:38,276 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2020-04-18 20:06:38,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4792 states. [2020-04-18 20:06:38,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4792 to 4792. [2020-04-18 20:06:38,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4792 states. [2020-04-18 20:06:38,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4792 states to 4792 states and 16188 transitions. [2020-04-18 20:06:38,456 INFO L78 Accepts]: Start accepts. Automaton has 4792 states and 16188 transitions. Word has length 39 [2020-04-18 20:06:38,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:06:38,457 INFO L479 AbstractCegarLoop]: Abstraction has 4792 states and 16188 transitions. [2020-04-18 20:06:38,457 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 20:06:38,457 INFO L276 IsEmpty]: Start isEmpty. Operand 4792 states and 16188 transitions. [2020-04-18 20:06:38,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-04-18 20:06:38,470 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:06:38,471 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 20:06:38,475 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:06:38,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:06:38,476 INFO L82 PathProgramCache]: Analyzing trace with hash 773486317, now seen corresponding path program 1 times [2020-04-18 20:06:38,476 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:06:38,477 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1458252267] [2020-04-18 20:06:38,479 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:06:38,483 INFO L259 McrAutomatonBuilder]: Finished intersection with 182 states and 385 transitions. [2020-04-18 20:06:38,486 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states. [2020-04-18 20:06:38,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-04-18 20:06:38,487 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:06:38,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:06:38,488 INFO L82 PathProgramCache]: Analyzing trace with hash -1162539155, now seen corresponding path program 2 times [2020-04-18 20:06:38,488 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:06:38,488 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214541802] [2020-04-18 20:06:38,488 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:06:38,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:06:38,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 20:06:38,704 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214541802] [2020-04-18 20:06:38,705 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:06:38,705 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 20:06:38,706 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:06:38,711 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:06:38,732 INFO L259 McrAutomatonBuilder]: Finished intersection with 134 states and 265 transitions. [2020-04-18 20:06:38,732 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:06:38,815 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 20:06:38,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 20:06:38,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-04-18 20:06:38,816 INFO L87 Difference]: Start difference. First operand 182 states. Second operand 8 states. [2020-04-18 20:06:39,063 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2020-04-18 20:06:39,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:06:39,123 INFO L93 Difference]: Finished difference Result 182 states and 385 transitions. [2020-04-18 20:06:39,123 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 385 transitions. [2020-04-18 20:06:39,124 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:06:39,124 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1458252267] [2020-04-18 20:06:39,124 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:06:39,125 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 20:06:39,125 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1458252267] [2020-04-18 20:06:39,125 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-04-18 20:06:39,125 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:06:39,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 20:06:39,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-04-18 20:06:39,126 INFO L87 Difference]: Start difference. First operand 4792 states and 16188 transitions. Second operand 8 states. [2020-04-18 20:06:39,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:06:39,632 INFO L93 Difference]: Finished difference Result 8547 states and 28502 transitions. [2020-04-18 20:06:39,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-04-18 20:06:39,632 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 41 [2020-04-18 20:06:39,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:06:39,655 INFO L225 Difference]: With dead ends: 8547 [2020-04-18 20:06:39,655 INFO L226 Difference]: Without dead ends: 5092 [2020-04-18 20:06:39,656 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=212, Invalid=544, Unknown=0, NotChecked=0, Total=756 [2020-04-18 20:06:39,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5092 states. [2020-04-18 20:06:39,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5092 to 4642. [2020-04-18 20:06:39,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4642 states. [2020-04-18 20:06:39,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4642 states to 4642 states and 15557 transitions. [2020-04-18 20:06:39,826 INFO L78 Accepts]: Start accepts. Automaton has 4642 states and 15557 transitions. Word has length 41 [2020-04-18 20:06:39,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:06:39,826 INFO L479 AbstractCegarLoop]: Abstraction has 4642 states and 15557 transitions. [2020-04-18 20:06:39,826 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-04-18 20:06:39,826 INFO L276 IsEmpty]: Start isEmpty. Operand 4642 states and 15557 transitions. [2020-04-18 20:06:39,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-04-18 20:06:39,838 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:06:39,838 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 20:06:39,838 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:06:39,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:06:39,839 INFO L82 PathProgramCache]: Analyzing trace with hash -1514673235, now seen corresponding path program 1 times [2020-04-18 20:06:39,839 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:06:39,839 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [833482334] [2020-04-18 20:06:39,840 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:06:39,843 INFO L259 McrAutomatonBuilder]: Finished intersection with 150 states and 305 transitions. [2020-04-18 20:06:39,844 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states. [2020-04-18 20:06:39,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-04-18 20:06:39,845 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:06:39,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:06:39,846 INFO L82 PathProgramCache]: Analyzing trace with hash -1514673235, now seen corresponding path program 2 times [2020-04-18 20:06:39,846 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:06:39,846 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183424455] [2020-04-18 20:06:39,846 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:06:39,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:06:39,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 20:06:39,963 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183424455] [2020-04-18 20:06:39,963 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:06:39,964 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 20:06:39,964 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:06:39,967 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:06:39,979 INFO L259 McrAutomatonBuilder]: Finished intersection with 102 states and 185 transitions. [2020-04-18 20:06:39,980 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:06:40,146 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 20:06:40,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 20:06:40,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-04-18 20:06:40,147 INFO L87 Difference]: Start difference. First operand 150 states. Second operand 9 states. [2020-04-18 20:06:40,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:06:40,264 INFO L93 Difference]: Finished difference Result 150 states and 305 transitions. [2020-04-18 20:06:40,264 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 305 transitions. [2020-04-18 20:06:40,264 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:06:40,265 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [833482334] [2020-04-18 20:06:40,265 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:06:40,265 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-04-18 20:06:40,265 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [833482334] [2020-04-18 20:06:40,266 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-04-18 20:06:40,266 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:06:40,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 20:06:40,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2020-04-18 20:06:40,267 INFO L87 Difference]: Start difference. First operand 4642 states and 15557 transitions. Second operand 9 states. [2020-04-18 20:06:40,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:06:40,391 INFO L93 Difference]: Finished difference Result 5592 states and 18602 transitions. [2020-04-18 20:06:40,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-04-18 20:06:40,392 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 41 [2020-04-18 20:06:40,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:06:40,402 INFO L225 Difference]: With dead ends: 5592 [2020-04-18 20:06:40,403 INFO L226 Difference]: Without dead ends: 2687 [2020-04-18 20:06:40,403 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306 [2020-04-18 20:06:40,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2687 states. [2020-04-18 20:06:40,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2687 to 2687. [2020-04-18 20:06:40,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2687 states. [2020-04-18 20:06:40,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2687 states to 2687 states and 8785 transitions. [2020-04-18 20:06:40,490 INFO L78 Accepts]: Start accepts. Automaton has 2687 states and 8785 transitions. Word has length 41 [2020-04-18 20:06:40,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:06:40,490 INFO L479 AbstractCegarLoop]: Abstraction has 2687 states and 8785 transitions. [2020-04-18 20:06:40,490 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-04-18 20:06:40,490 INFO L276 IsEmpty]: Start isEmpty. Operand 2687 states and 8785 transitions. [2020-04-18 20:06:40,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-04-18 20:06:40,496 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:06:40,496 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 20:06:40,496 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:06:40,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:06:40,497 INFO L82 PathProgramCache]: Analyzing trace with hash 419818727, now seen corresponding path program 1 times [2020-04-18 20:06:40,497 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:06:40,502 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [767215277] [2020-04-18 20:06:40,503 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:06:40,508 INFO L259 McrAutomatonBuilder]: Finished intersection with 237 states and 526 transitions. [2020-04-18 20:06:40,510 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states. [2020-04-18 20:06:40,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-04-18 20:06:40,511 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:06:40,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:06:40,512 INFO L82 PathProgramCache]: Analyzing trace with hash 419818727, now seen corresponding path program 2 times [2020-04-18 20:06:40,512 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:06:40,512 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660497279] [2020-04-18 20:06:40,513 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:06:40,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:06:40,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 20:06:40,670 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660497279] [2020-04-18 20:06:40,671 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:06:40,671 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 20:06:40,671 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:06:40,675 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:06:40,691 INFO L259 McrAutomatonBuilder]: Finished intersection with 138 states and 262 transitions. [2020-04-18 20:06:40,692 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:06:40,740 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 20:06:40,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 20:06:40,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-04-18 20:06:40,742 INFO L87 Difference]: Start difference. First operand 237 states. Second operand 8 states. [2020-04-18 20:06:40,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:06:40,823 INFO L93 Difference]: Finished difference Result 237 states and 526 transitions. [2020-04-18 20:06:40,823 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 526 transitions. [2020-04-18 20:06:40,824 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:06:40,824 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [767215277] [2020-04-18 20:06:40,824 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:06:40,824 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-04-18 20:06:40,825 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [767215277] [2020-04-18 20:06:40,825 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-04-18 20:06:40,825 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:06:40,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 20:06:40,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-04-18 20:06:40,826 INFO L87 Difference]: Start difference. First operand 2687 states and 8785 transitions. Second operand 8 states. [2020-04-18 20:06:40,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:06:40,932 INFO L93 Difference]: Finished difference Result 3727 states and 12109 transitions. [2020-04-18 20:06:40,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-04-18 20:06:40,933 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 42 [2020-04-18 20:06:40,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:06:40,939 INFO L225 Difference]: With dead ends: 3727 [2020-04-18 20:06:40,939 INFO L226 Difference]: Without dead ends: 1557 [2020-04-18 20:06:40,940 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-04-18 20:06:40,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1557 states. [2020-04-18 20:06:40,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1557 to 1557. [2020-04-18 20:06:40,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1557 states. [2020-04-18 20:06:40,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1557 states to 1557 states and 4927 transitions. [2020-04-18 20:06:40,982 INFO L78 Accepts]: Start accepts. Automaton has 1557 states and 4927 transitions. Word has length 42 [2020-04-18 20:06:40,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:06:40,982 INFO L479 AbstractCegarLoop]: Abstraction has 1557 states and 4927 transitions. [2020-04-18 20:06:40,982 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-04-18 20:06:40,982 INFO L276 IsEmpty]: Start isEmpty. Operand 1557 states and 4927 transitions. [2020-04-18 20:06:40,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-04-18 20:06:40,989 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:06:40,989 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 20:06:40,989 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:06:40,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:06:40,990 INFO L82 PathProgramCache]: Analyzing trace with hash -493734196, now seen corresponding path program 1 times [2020-04-18 20:06:40,990 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:06:40,990 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1927744984] [2020-04-18 20:06:40,992 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:06:41,007 INFO L259 McrAutomatonBuilder]: Finished intersection with 705 states and 2089 transitions. [2020-04-18 20:06:41,011 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states. [2020-04-18 20:06:41,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-04-18 20:06:41,014 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:06:41,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:06:41,015 INFO L82 PathProgramCache]: Analyzing trace with hash 15671900, now seen corresponding path program 2 times [2020-04-18 20:06:41,015 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:06:41,016 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348494263] [2020-04-18 20:06:41,016 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:06:41,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:06:41,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 20:06:41,178 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348494263] [2020-04-18 20:06:41,178 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:06:41,178 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 20:06:41,179 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:06:41,182 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:06:41,575 INFO L259 McrAutomatonBuilder]: Finished intersection with 305 states and 762 transitions. [2020-04-18 20:06:41,575 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:06:41,686 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 11 times. [2020-04-18 20:06:41,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-04-18 20:06:41,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-04-18 20:06:41,687 INFO L87 Difference]: Start difference. First operand 705 states. Second operand 11 states. [2020-04-18 20:06:41,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:06:41,971 INFO L93 Difference]: Finished difference Result 807 states and 2304 transitions. [2020-04-18 20:06:41,972 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 2304 transitions. [2020-04-18 20:06:41,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-04-18 20:06:41,974 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 20:06:41,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:06:41,974 INFO L82 PathProgramCache]: Analyzing trace with hash -1787096026, now seen corresponding path program 3 times [2020-04-18 20:06:41,975 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:06:41,975 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295292803] [2020-04-18 20:06:41,975 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:06:41,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:06:42,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 20:06:42,071 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295292803] [2020-04-18 20:06:42,071 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:06:42,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 20:06:42,072 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:06:42,076 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:06:42,111 INFO L259 McrAutomatonBuilder]: Finished intersection with 257 states and 631 transitions. [2020-04-18 20:06:42,111 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:06:42,144 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 11 times. [2020-04-18 20:06:42,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 20:06:42,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2020-04-18 20:06:42,145 INFO L87 Difference]: Start difference. First operand 807 states and 2304 transitions. Second operand 9 states. [2020-04-18 20:06:42,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:06:42,426 INFO L93 Difference]: Finished difference Result 900 states and 2443 transitions. [2020-04-18 20:06:42,426 INFO L276 IsEmpty]: Start isEmpty. Operand 900 states and 2443 transitions. [2020-04-18 20:06:42,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-04-18 20:06:42,431 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 20:06:42,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:06:42,431 INFO L82 PathProgramCache]: Analyzing trace with hash -715179570, now seen corresponding path program 4 times [2020-04-18 20:06:42,432 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:06:42,432 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468881400] [2020-04-18 20:06:42,432 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:06:42,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:06:42,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 20:06:42,521 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468881400] [2020-04-18 20:06:42,522 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:06:42,522 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 20:06:42,522 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:06:42,526 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:06:42,547 INFO L259 McrAutomatonBuilder]: Finished intersection with 194 states and 438 transitions. [2020-04-18 20:06:42,548 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:06:42,582 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 20:06:42,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 20:06:42,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=241, Invalid=881, Unknown=0, NotChecked=0, Total=1122 [2020-04-18 20:06:42,583 INFO L87 Difference]: Start difference. First operand 900 states and 2443 transitions. Second operand 7 states. [2020-04-18 20:06:42,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:06:42,683 INFO L93 Difference]: Finished difference Result 900 states and 2443 transitions. [2020-04-18 20:06:42,684 INFO L276 IsEmpty]: Start isEmpty. Operand 900 states and 2443 transitions. [2020-04-18 20:06:42,685 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:06:42,686 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1927744984] [2020-04-18 20:06:42,686 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:06:42,686 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 20:06:42,687 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1927744984] [2020-04-18 20:06:42,687 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-04-18 20:06:42,687 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:06:42,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-04-18 20:06:42,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=292, Invalid=1114, Unknown=0, NotChecked=0, Total=1406 [2020-04-18 20:06:42,688 INFO L87 Difference]: Start difference. First operand 1557 states and 4927 transitions. Second operand 15 states. [2020-04-18 20:06:42,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:06:42,908 INFO L93 Difference]: Finished difference Result 1397 states and 4399 transitions. [2020-04-18 20:06:42,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-04-18 20:06:42,908 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 45 [2020-04-18 20:06:42,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:06:42,909 INFO L225 Difference]: With dead ends: 1397 [2020-04-18 20:06:42,909 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 20:06:42,910 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 573 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=444, Invalid=1812, Unknown=0, NotChecked=0, Total=2256 [2020-04-18 20:06:42,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 20:06:42,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 20:06:42,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 20:06:42,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 20:06:42,910 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2020-04-18 20:06:42,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:06:42,911 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 20:06:42,911 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-04-18 20:06:42,911 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 20:06:42,911 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:06:42,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 08:06:42 BasicIcfg [2020-04-18 20:06:42,917 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 20:06:42,918 INFO L168 Benchmark]: Toolchain (without parser) took 9730.94 ms. Allocated memory was 136.3 MB in the beginning and 478.2 MB in the end (delta: 341.8 MB). Free memory was 99.4 MB in the beginning and 158.7 MB in the end (delta: -59.3 MB). Peak memory consumption was 282.5 MB. Max. memory is 7.1 GB. [2020-04-18 20:06:42,919 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 136.3 MB. Free memory was 118.7 MB in the beginning and 118.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-04-18 20:06:42,920 INFO L168 Benchmark]: CACSL2BoogieTranslator took 685.78 ms. Allocated memory was 136.3 MB in the beginning and 199.8 MB in the end (delta: 63.4 MB). Free memory was 97.5 MB in the beginning and 156.8 MB in the end (delta: -59.3 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. [2020-04-18 20:06:42,920 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.17 ms. Allocated memory is still 199.8 MB. Free memory was 156.8 MB in the beginning and 154.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2020-04-18 20:06:42,921 INFO L168 Benchmark]: Boogie Preprocessor took 27.43 ms. Allocated memory is still 199.8 MB. Free memory was 154.0 MB in the beginning and 152.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-04-18 20:06:42,922 INFO L168 Benchmark]: RCFGBuilder took 475.71 ms. Allocated memory is still 199.8 MB. Free memory was 152.6 MB in the beginning and 130.2 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. [2020-04-18 20:06:42,922 INFO L168 Benchmark]: TraceAbstraction took 8461.44 ms. Allocated memory was 199.8 MB in the beginning and 478.2 MB in the end (delta: 278.4 MB). Free memory was 130.2 MB in the beginning and 158.7 MB in the end (delta: -28.5 MB). Peak memory consumption was 249.9 MB. Max. memory is 7.1 GB. [2020-04-18 20:06:42,926 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 136.3 MB. Free memory was 118.7 MB in the beginning and 118.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 685.78 ms. Allocated memory was 136.3 MB in the beginning and 199.8 MB in the end (delta: 63.4 MB). Free memory was 97.5 MB in the beginning and 156.8 MB in the end (delta: -59.3 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 54.17 ms. Allocated memory is still 199.8 MB. Free memory was 156.8 MB in the beginning and 154.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.43 ms. Allocated memory is still 199.8 MB. Free memory was 154.0 MB in the beginning and 152.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 475.71 ms. Allocated memory is still 199.8 MB. Free memory was 152.6 MB in the beginning and 130.2 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 8461.44 ms. Allocated memory was 199.8 MB in the beginning and 478.2 MB in the end (delta: 278.4 MB). Free memory was 130.2 MB in the beginning and 158.7 MB in the end (delta: -28.5 MB). Peak memory consumption was 249.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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 4 procedures, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.3s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.5s, HoareTripleCheckerStatistics: 711 SDtfs, 1348 SDslu, 2747 SDs, 0 SdLazy, 267 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 517 GetRequests, 380 SyntacticMatches, 0 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 864 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8473occurred 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: 0.8s AutomataMinimizationTime, 7 MinimizatonAttempts, 450 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...