/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/safe037_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 20:06:01,989 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 20:06:01,992 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 20:06:02,012 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 20:06:02,013 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 20:06:02,015 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 20:06:02,018 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 20:06:02,031 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 20:06:02,033 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 20:06:02,034 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 20:06:02,037 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 20:06:02,039 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 20:06:02,039 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 20:06:02,043 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 20:06:02,045 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 20:06:02,047 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 20:06:02,049 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 20:06:02,051 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 20:06:02,053 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 20:06:02,059 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 20:06:02,061 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 20:06:02,065 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 20:06:02,066 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 20:06:02,067 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 20:06:02,070 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 20:06:02,071 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 20:06:02,071 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 20:06:02,074 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 20:06:02,075 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 20:06:02,077 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 20:06:02,078 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 20:06:02,080 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 20:06:02,081 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 20:06:02,082 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 20:06:02,086 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 20:06:02,086 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 20:06:02,087 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 20:06:02,087 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 20:06:02,087 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 20:06:02,088 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 20:06:02,088 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 20:06:02,089 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 20:06:02,103 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 20:06:02,104 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 20:06:02,105 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 20:06:02,105 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 20:06:02,105 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 20:06:02,106 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 20:06:02,106 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 20:06:02,106 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 20:06:02,106 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 20:06:02,106 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 20:06:02,107 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 20:06:02,107 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 20:06:02,107 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 20:06:02,107 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 20:06:02,107 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 20:06:02,107 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 20:06:02,108 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 20:06:02,108 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 20:06:02,108 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 20:06:02,108 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 20:06:02,109 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 20:06:02,109 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 20:06:02,109 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 20:06:02,109 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 20:06:02,109 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 20:06:02,110 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 20:06:02,110 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 20:06:02,110 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-04-18 20:06:02,110 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 20:06:02,110 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 20:06:02,110 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 20:06:02,402 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 20:06:02,420 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 20:06:02,424 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 20:06:02,425 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 20:06:02,425 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 20:06:02,426 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe037_tso.opt.i [2020-04-18 20:06:02,497 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83ffefaee/3df20e4e1e614708b0bc4fed63f54a6e/FLAG4c57d0e17 [2020-04-18 20:06:03,071 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 20:06:03,072 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe037_tso.opt.i [2020-04-18 20:06:03,089 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83ffefaee/3df20e4e1e614708b0bc4fed63f54a6e/FLAG4c57d0e17 [2020-04-18 20:06:03,418 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83ffefaee/3df20e4e1e614708b0bc4fed63f54a6e [2020-04-18 20:06:03,427 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 20:06:03,447 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 20:06:03,449 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 20:06:03,449 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 20:06:03,453 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 20:06:03,454 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:06:03" (1/1) ... [2020-04-18 20:06:03,457 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@699f9221 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:06:03, skipping insertion in model container [2020-04-18 20:06:03,457 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:06:03" (1/1) ... [2020-04-18 20:06:03,465 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 20:06:03,527 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 20:06:04,028 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 20:06:04,040 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 20:06:04,099 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 20:06:04,174 INFO L208 MainTranslator]: Completed translation [2020-04-18 20:06:04,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:06:04 WrapperNode [2020-04-18 20:06:04,175 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 20:06:04,175 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 20:06:04,176 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 20:06:04,176 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 20:06:04,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:06:04" (1/1) ... [2020-04-18 20:06:04,203 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:06:04" (1/1) ... [2020-04-18 20:06:04,226 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 20:06:04,227 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 20:06:04,227 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 20:06:04,227 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 20:06:04,237 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:06:04" (1/1) ... [2020-04-18 20:06:04,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:06:04" (1/1) ... [2020-04-18 20:06:04,240 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:06:04" (1/1) ... [2020-04-18 20:06:04,241 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:06:04" (1/1) ... [2020-04-18 20:06:04,248 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:06:04" (1/1) ... [2020-04-18 20:06:04,250 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:06:04" (1/1) ... [2020-04-18 20:06:04,252 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:06:04" (1/1) ... [2020-04-18 20:06:04,256 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 20:06:04,256 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 20:06:04,256 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 20:06:04,257 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 20:06:04,257 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:06:04" (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 20:06:04,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 20:06:04,333 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 20:06:04,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 20:06:04,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 20:06:04,334 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-18 20:06:04,334 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-18 20:06:04,335 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-18 20:06:04,335 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-18 20:06:04,336 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-18 20:06:04,336 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-18 20:06:04,337 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 20:06:04,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 20:06:04,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 20:06:04,339 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 20:06:04,818 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 20:06:04,818 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 20:06:04,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:06:04 BoogieIcfgContainer [2020-04-18 20:06:04,822 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 20:06:04,824 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 20:06:04,824 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 20:06:04,827 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 20:06:04,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 08:06:03" (1/3) ... [2020-04-18 20:06:04,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bb717ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:06:04, skipping insertion in model container [2020-04-18 20:06:04,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:06:04" (2/3) ... [2020-04-18 20:06:04,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bb717ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:06:04, skipping insertion in model container [2020-04-18 20:06:04,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:06:04" (3/3) ... [2020-04-18 20:06:04,831 INFO L109 eAbstractionObserver]: Analyzing ICFG safe037_tso.opt.i [2020-04-18 20:06:04,842 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 20:06:04,843 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 20:06:04,852 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 20:06:04,853 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 20:06:04,880 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:04,880 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:04,881 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:04,882 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:04,884 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:04,884 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:04,885 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:04,886 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:04,886 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:04,886 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:04,887 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:04,887 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:04,888 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:04,888 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:04,888 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:04,889 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:04,889 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:04,889 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:04,894 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:04,895 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:04,895 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:04,897 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:04,905 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:04,907 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:04,907 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:04,907 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:04,909 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:04,910 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:04,910 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:04,910 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:04,927 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-18 20:06:04,949 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 20:06:04,949 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 20:06:04,949 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 20:06:04,949 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 20:06:04,950 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 20:06:04,950 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 20:06:04,950 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 20:06:04,951 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 20:06:04,965 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 79 places, 71 transitions, 157 flow [2020-04-18 20:06:05,483 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 8473 states. [2020-04-18 20:06:05,485 INFO L276 IsEmpty]: Start isEmpty. Operand 8473 states. [2020-04-18 20:06:05,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-04-18 20:06:05,524 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:06:05,526 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 20:06:05,526 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:06:05,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:06:05,533 INFO L82 PathProgramCache]: Analyzing trace with hash 147192619, now seen corresponding path program 1 times [2020-04-18 20:06:05,541 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:06:05,542 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [2108332717] [2020-04-18 20:06:05,560 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:06:05,577 INFO L259 McrAutomatonBuilder]: Finished intersection with 38 states and 37 transitions. [2020-04-18 20:06:05,579 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-04-18 20:06:05,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-04-18 20:06:05,580 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:06:05,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:06:05,581 INFO L82 PathProgramCache]: Analyzing trace with hash 147192619, now seen corresponding path program 2 times [2020-04-18 20:06:05,585 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:06:05,585 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636334550] [2020-04-18 20:06:05,585 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:06:05,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:06:06,020 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 20:06:06,021 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636334550] [2020-04-18 20:06:06,022 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:06:06,023 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 20:06:06,027 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:06:06,037 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:06:06,071 INFO L259 McrAutomatonBuilder]: Finished intersection with 38 states and 37 transitions. [2020-04-18 20:06:06,072 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:06:06,181 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 20:06:06,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 20:06:06,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 20:06:06,187 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 6 states. [2020-04-18 20:06:06,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:06:06,288 INFO L93 Difference]: Finished difference Result 38 states and 37 transitions. [2020-04-18 20:06:06,288 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 37 transitions. [2020-04-18 20:06:06,289 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:06:06,290 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [2108332717] [2020-04-18 20:06:06,290 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:06:06,291 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-04-18 20:06:06,292 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [2108332717] [2020-04-18 20:06:06,293 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 20:06:06,294 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:06:06,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 20:06:06,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-04-18 20:06:06,301 INFO L87 Difference]: Start difference. First operand 8473 states. Second operand 6 states. [2020-04-18 20:06:06,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:06:06,653 INFO L93 Difference]: Finished difference Result 8780 states and 29872 transitions. [2020-04-18 20:06:06,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-04-18 20:06:06,655 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2020-04-18 20:06:06,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:06:06,733 INFO L225 Difference]: With dead ends: 8780 [2020-04-18 20:06:06,733 INFO L226 Difference]: Without dead ends: 3996 [2020-04-18 20:06:06,737 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-04-18 20:06:06,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3996 states. [2020-04-18 20:06:07,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3996 to 3996. [2020-04-18 20:06:07,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3996 states. [2020-04-18 20:06:07,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3996 states to 3996 states and 13367 transitions. [2020-04-18 20:06:07,031 INFO L78 Accepts]: Start accepts. Automaton has 3996 states and 13367 transitions. Word has length 37 [2020-04-18 20:06:07,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:06:07,032 INFO L479 AbstractCegarLoop]: Abstraction has 3996 states and 13367 transitions. [2020-04-18 20:06:07,033 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 20:06:07,033 INFO L276 IsEmpty]: Start isEmpty. Operand 3996 states and 13367 transitions. [2020-04-18 20:06:07,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-04-18 20:06:07,042 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:06:07,043 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 20:06:07,043 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:06:07,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:06:07,043 INFO L82 PathProgramCache]: Analyzing trace with hash 996075595, now seen corresponding path program 1 times [2020-04-18 20:06:07,044 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:06:07,044 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1897053802] [2020-04-18 20:06:07,046 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:06:07,049 INFO L259 McrAutomatonBuilder]: Finished intersection with 122 states and 201 transitions. [2020-04-18 20:06:07,050 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states. [2020-04-18 20:06:07,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-04-18 20:06:07,051 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:06:07,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:06:07,052 INFO L82 PathProgramCache]: Analyzing trace with hash 996075595, now seen corresponding path program 2 times [2020-04-18 20:06:07,052 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:06:07,052 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41083757] [2020-04-18 20:06:07,053 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:06:07,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:06:07,247 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 20:06:07,248 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41083757] [2020-04-18 20:06:07,248 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:06:07,248 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 20:06:07,249 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:06:07,253 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:06:07,261 INFO L259 McrAutomatonBuilder]: Finished intersection with 78 states and 113 transitions. [2020-04-18 20:06:07,261 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:06:07,303 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times. [2020-04-18 20:06:07,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 20:06:07,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-18 20:06:07,304 INFO L87 Difference]: Start difference. First operand 122 states. Second operand 7 states. [2020-04-18 20:06:07,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:06:07,498 INFO L93 Difference]: Finished difference Result 122 states and 201 transitions. [2020-04-18 20:06:07,498 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 201 transitions. [2020-04-18 20:06:07,498 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:06:07,499 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1897053802] [2020-04-18 20:06:07,499 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:06:07,499 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 20:06:07,500 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1897053802] [2020-04-18 20:06:07,500 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 20:06:07,501 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:06:07,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 20:06:07,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2020-04-18 20:06:07,501 INFO L87 Difference]: Start difference. First operand 3996 states and 13367 transitions. Second operand 7 states. [2020-04-18 20:06:07,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:06:07,698 INFO L93 Difference]: Finished difference Result 3528 states and 11300 transitions. [2020-04-18 20:06:07,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-04-18 20:06:07,698 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 41 [2020-04-18 20:06:07,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:06:07,717 INFO L225 Difference]: With dead ends: 3528 [2020-04-18 20:06:07,717 INFO L226 Difference]: Without dead ends: 2412 [2020-04-18 20:06:07,719 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-04-18 20:06:07,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2412 states. [2020-04-18 20:06:07,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2412 to 2412. [2020-04-18 20:06:07,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2412 states. [2020-04-18 20:06:07,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2412 states to 2412 states and 7559 transitions. [2020-04-18 20:06:07,807 INFO L78 Accepts]: Start accepts. Automaton has 2412 states and 7559 transitions. Word has length 41 [2020-04-18 20:06:07,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:06:07,808 INFO L479 AbstractCegarLoop]: Abstraction has 2412 states and 7559 transitions. [2020-04-18 20:06:07,808 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 20:06:07,808 INFO L276 IsEmpty]: Start isEmpty. Operand 2412 states and 7559 transitions. [2020-04-18 20:06:07,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-04-18 20:06:07,815 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:06:07,815 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 20:06:07,815 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:06:07,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:06:07,816 INFO L82 PathProgramCache]: Analyzing trace with hash 799576525, now seen corresponding path program 1 times [2020-04-18 20:06:07,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:06:07,816 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1596578442] [2020-04-18 20:06:07,818 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:06:07,849 INFO L259 McrAutomatonBuilder]: Finished intersection with 462 states and 1133 transitions. [2020-04-18 20:06:07,853 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states. [2020-04-18 20:06:07,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-04-18 20:06:07,856 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:06:07,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:06:07,856 INFO L82 PathProgramCache]: Analyzing trace with hash 799576525, now seen corresponding path program 2 times [2020-04-18 20:06:07,856 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:06:07,857 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254739229] [2020-04-18 20:06:07,857 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:06:07,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:06:07,999 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 20:06:08,000 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254739229] [2020-04-18 20:06:08,000 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:06:08,001 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 20:06:08,001 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:06:08,005 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:06:08,023 INFO L259 McrAutomatonBuilder]: Finished intersection with 138 states and 259 transitions. [2020-04-18 20:06:08,023 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:06:08,071 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times. [2020-04-18 20:06:08,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 20:06:08,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-04-18 20:06:08,072 INFO L87 Difference]: Start difference. First operand 462 states. Second operand 8 states. [2020-04-18 20:06:08,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:06:08,388 INFO L93 Difference]: Finished difference Result 462 states and 1133 transitions. [2020-04-18 20:06:08,388 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 1133 transitions. [2020-04-18 20:06:08,389 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:06:08,389 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1596578442] [2020-04-18 20:06:08,390 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:06:08,390 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-04-18 20:06:08,390 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1596578442] [2020-04-18 20:06:08,390 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-04-18 20:06:08,391 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:06:08,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 20:06:08,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=175, Unknown=0, NotChecked=0, Total=272 [2020-04-18 20:06:08,391 INFO L87 Difference]: Start difference. First operand 2412 states and 7559 transitions. Second operand 8 states. [2020-04-18 20:06:08,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:06:08,556 INFO L93 Difference]: Finished difference Result 1764 states and 5336 transitions. [2020-04-18 20:06:08,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-04-18 20:06:08,557 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 45 [2020-04-18 20:06:08,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:06:08,566 INFO L225 Difference]: With dead ends: 1764 [2020-04-18 20:06:08,566 INFO L226 Difference]: Without dead ends: 1224 [2020-04-18 20:06:08,567 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342 [2020-04-18 20:06:08,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1224 states. [2020-04-18 20:06:08,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1224 to 1224. [2020-04-18 20:06:08,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1224 states. [2020-04-18 20:06:08,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1224 states to 1224 states and 3599 transitions. [2020-04-18 20:06:08,618 INFO L78 Accepts]: Start accepts. Automaton has 1224 states and 3599 transitions. Word has length 45 [2020-04-18 20:06:08,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:06:08,618 INFO L479 AbstractCegarLoop]: Abstraction has 1224 states and 3599 transitions. [2020-04-18 20:06:08,618 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-04-18 20:06:08,619 INFO L276 IsEmpty]: Start isEmpty. Operand 1224 states and 3599 transitions. [2020-04-18 20:06:08,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-04-18 20:06:08,623 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:06:08,624 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, 1, 1, 1, 1] [2020-04-18 20:06:08,624 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:06:08,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:06:08,624 INFO L82 PathProgramCache]: Analyzing trace with hash -1836077105, now seen corresponding path program 1 times [2020-04-18 20:06:08,625 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:06:08,625 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1707757102] [2020-04-18 20:06:08,627 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:06:08,735 INFO L259 McrAutomatonBuilder]: Finished intersection with 1762 states and 5713 transitions. [2020-04-18 20:06:08,750 INFO L276 IsEmpty]: Start isEmpty. Operand 1762 states. [2020-04-18 20:06:08,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-04-18 20:06:08,758 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:06:08,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:06:08,758 INFO L82 PathProgramCache]: Analyzing trace with hash -1836077105, now seen corresponding path program 2 times [2020-04-18 20:06:08,759 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:06:08,759 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724252131] [2020-04-18 20:06:08,759 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:06:08,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:06:08,886 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 20:06:08,887 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724252131] [2020-04-18 20:06:08,887 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:06:08,888 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 20:06:08,888 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:06:08,893 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:06:08,944 INFO L259 McrAutomatonBuilder]: Finished intersection with 182 states and 373 transitions. [2020-04-18 20:06:08,945 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:06:09,013 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 20:06:09,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 20:06:09,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-04-18 20:06:09,014 INFO L87 Difference]: Start difference. First operand 1762 states. Second operand 7 states. [2020-04-18 20:06:09,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:06:09,136 INFO L93 Difference]: Finished difference Result 2332 states and 7344 transitions. [2020-04-18 20:06:09,137 INFO L276 IsEmpty]: Start isEmpty. Operand 2332 states and 7344 transitions. [2020-04-18 20:06:09,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-04-18 20:06:09,147 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 20:06:09,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:06:09,147 INFO L82 PathProgramCache]: Analyzing trace with hash -447061139, now seen corresponding path program 3 times [2020-04-18 20:06:09,148 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:06:09,148 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84766456] [2020-04-18 20:06:09,148 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:06:09,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:06:09,352 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 20:06:09,352 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84766456] [2020-04-18 20:06:09,352 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:06:09,353 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 20:06:09,353 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:06:09,357 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:06:09,387 INFO L259 McrAutomatonBuilder]: Finished intersection with 208 states and 423 transitions. [2020-04-18 20:06:09,388 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:06:09,497 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 9 times. [2020-04-18 20:06:09,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 20:06:09,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2020-04-18 20:06:09,498 INFO L87 Difference]: Start difference. First operand 2332 states and 7344 transitions. Second operand 8 states. [2020-04-18 20:06:09,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:06:09,934 INFO L93 Difference]: Finished difference Result 2352 states and 7362 transitions. [2020-04-18 20:06:09,935 INFO L276 IsEmpty]: Start isEmpty. Operand 2352 states and 7362 transitions. [2020-04-18 20:06:09,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-04-18 20:06:09,945 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 20:06:09,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:06:09,946 INFO L82 PathProgramCache]: Analyzing trace with hash -242681937, now seen corresponding path program 4 times [2020-04-18 20:06:09,947 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:06:09,947 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669543994] [2020-04-18 20:06:09,947 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:06:09,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:06:10,133 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 20:06:10,134 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669543994] [2020-04-18 20:06:10,134 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:06:10,135 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 20:06:10,135 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:06:10,141 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:06:10,167 INFO L259 McrAutomatonBuilder]: Finished intersection with 150 states and 301 transitions. [2020-04-18 20:06:10,167 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:06:10,219 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 3 times. [2020-04-18 20:06:10,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 20:06:10,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=661, Unknown=0, NotChecked=0, Total=812 [2020-04-18 20:06:10,222 INFO L87 Difference]: Start difference. First operand 2352 states and 7362 transitions. Second operand 7 states. [2020-04-18 20:06:10,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:06:10,536 INFO L93 Difference]: Finished difference Result 3450 states and 10311 transitions. [2020-04-18 20:06:10,536 INFO L276 IsEmpty]: Start isEmpty. Operand 3450 states and 10311 transitions. [2020-04-18 20:06:10,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-04-18 20:06:10,547 INFO L105 Mcr]: ---- MCR iteration 3 ---- [2020-04-18 20:06:10,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:06:10,548 INFO L82 PathProgramCache]: Analyzing trace with hash 1080284497, now seen corresponding path program 5 times [2020-04-18 20:06:10,548 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:06:10,549 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170403289] [2020-04-18 20:06:10,549 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:06:10,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:06:10,678 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 20:06:10,679 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170403289] [2020-04-18 20:06:10,679 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:06:10,679 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 20:06:10,679 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:06:10,684 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:06:10,715 INFO L259 McrAutomatonBuilder]: Finished intersection with 176 states and 375 transitions. [2020-04-18 20:06:10,716 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:06:10,785 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 15 times. [2020-04-18 20:06:10,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 20:06:10,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=208, Invalid=1198, Unknown=0, NotChecked=0, Total=1406 [2020-04-18 20:06:10,786 INFO L87 Difference]: Start difference. First operand 3450 states and 10311 transitions. Second operand 7 states. [2020-04-18 20:06:10,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:06:10,937 INFO L93 Difference]: Finished difference Result 5066 states and 14481 transitions. [2020-04-18 20:06:10,938 INFO L276 IsEmpty]: Start isEmpty. Operand 5066 states and 14481 transitions. [2020-04-18 20:06:10,950 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:06:10,951 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1707757102] [2020-04-18 20:06:10,952 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:06:10,952 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 20:06:10,952 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1707757102] [2020-04-18 20:06:10,952 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-04-18 20:06:10,953 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:06:10,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-04-18 20:06:10,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=240, Invalid=1482, Unknown=0, NotChecked=0, Total=1722 [2020-04-18 20:06:10,954 INFO L87 Difference]: Start difference. First operand 1224 states and 3599 transitions. Second operand 17 states. [2020-04-18 20:06:13,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:06:13,240 INFO L93 Difference]: Finished difference Result 2851 states and 8366 transitions. [2020-04-18 20:06:13,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2020-04-18 20:06:13,241 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 49 [2020-04-18 20:06:13,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:06:13,241 INFO L225 Difference]: With dead ends: 2851 [2020-04-18 20:06:13,241 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 20:06:13,244 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3025 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1349, Invalid=7963, Unknown=0, NotChecked=0, Total=9312 [2020-04-18 20:06:13,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 20:06:13,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 20:06:13,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 20:06:13,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 20:06:13,245 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 49 [2020-04-18 20:06:13,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:06:13,245 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 20:06:13,245 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-04-18 20:06:13,246 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 20:06:13,246 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:06:13,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 08:06:13 BasicIcfg [2020-04-18 20:06:13,251 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 20:06:13,254 INFO L168 Benchmark]: Toolchain (without parser) took 9824.24 ms. Allocated memory was 138.9 MB in the beginning and 377.0 MB in the end (delta: 238.0 MB). Free memory was 101.1 MB in the beginning and 82.1 MB in the end (delta: 19.0 MB). Peak memory consumption was 257.0 MB. Max. memory is 7.1 GB. [2020-04-18 20:06:13,254 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 138.9 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-04-18 20:06:13,255 INFO L168 Benchmark]: CACSL2BoogieTranslator took 726.39 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 99.3 MB in the beginning and 159.9 MB in the end (delta: -60.7 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2020-04-18 20:06:13,256 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.26 ms. Allocated memory is still 202.9 MB. Free memory was 159.9 MB in the beginning and 157.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2020-04-18 20:06:13,257 INFO L168 Benchmark]: Boogie Preprocessor took 28.96 ms. Allocated memory is still 202.9 MB. Free memory was 157.7 MB in the beginning and 156.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-04-18 20:06:13,258 INFO L168 Benchmark]: RCFGBuilder took 565.92 ms. Allocated memory is still 202.9 MB. Free memory was 155.7 MB in the beginning and 133.5 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2020-04-18 20:06:13,259 INFO L168 Benchmark]: TraceAbstraction took 8427.59 ms. Allocated memory was 202.9 MB in the beginning and 377.0 MB in the end (delta: 174.1 MB). Free memory was 132.8 MB in the beginning and 82.1 MB in the end (delta: 50.7 MB). Peak memory consumption was 224.7 MB. Max. memory is 7.1 GB. [2020-04-18 20:06:13,263 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 138.9 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 726.39 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 99.3 MB in the beginning and 159.9 MB in the end (delta: -60.7 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.26 ms. Allocated memory is still 202.9 MB. Free memory was 159.9 MB in the beginning and 157.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.96 ms. Allocated memory is still 202.9 MB. Free memory was 157.7 MB in the beginning and 156.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 565.92 ms. Allocated memory is still 202.9 MB. Free memory was 155.7 MB in the beginning and 133.5 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 8427.59 ms. Allocated memory was 202.9 MB in the beginning and 377.0 MB in the end (delta: 174.1 MB). Free memory was 132.8 MB in the beginning and 82.1 MB in the end (delta: 50.7 MB). Peak memory consumption was 224.7 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: 4, TraceHistogramMax: 1, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.5s, HoareTripleCheckerStatistics: 444 SDtfs, 1031 SDslu, 2677 SDs, 0 SdLazy, 650 SolverSat, 98 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 518 GetRequests, 384 SyntacticMatches, 0 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3117 ImplicationChecksByTransitivity, 3.2s 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: 0.4s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 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...