/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe005_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-60655ea [2020-09-14 22:03:01,968 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-14 22:03:01,975 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-14 22:03:02,002 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-14 22:03:02,002 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-14 22:03:02,004 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-14 22:03:02,005 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-14 22:03:02,007 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-14 22:03:02,009 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-14 22:03:02,010 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-14 22:03:02,011 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-14 22:03:02,013 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-14 22:03:02,013 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-14 22:03:02,014 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-14 22:03:02,016 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-14 22:03:02,017 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-14 22:03:02,018 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-14 22:03:02,019 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-14 22:03:02,021 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-14 22:03:02,022 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-14 22:03:02,024 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-14 22:03:02,025 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-14 22:03:02,027 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-14 22:03:02,028 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-14 22:03:02,030 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-14 22:03:02,030 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-14 22:03:02,031 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-14 22:03:02,032 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-14 22:03:02,032 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-14 22:03:02,033 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-14 22:03:02,033 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-14 22:03:02,034 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-14 22:03:02,035 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-14 22:03:02,036 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-14 22:03:02,037 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-14 22:03:02,037 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-14 22:03:02,038 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-14 22:03:02,039 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-14 22:03:02,039 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-14 22:03:02,040 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-14 22:03:02,041 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-14 22:03:02,042 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-14 22:03:02,068 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-14 22:03:02,069 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-14 22:03:02,070 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-14 22:03:02,070 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-14 22:03:02,070 INFO L138 SettingsManager]: * Use SBE=true [2020-09-14 22:03:02,071 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-14 22:03:02,071 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-14 22:03:02,071 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-14 22:03:02,071 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-14 22:03:02,071 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-14 22:03:02,072 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-14 22:03:02,072 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-14 22:03:02,072 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-14 22:03:02,072 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-14 22:03:02,072 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-14 22:03:02,073 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-14 22:03:02,073 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-14 22:03:02,073 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-14 22:03:02,073 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-14 22:03:02,073 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-14 22:03:02,074 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-14 22:03:02,074 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-14 22:03:02,074 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-14 22:03:02,074 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-14 22:03:02,074 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-14 22:03:02,075 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-14 22:03:02,075 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-14 22:03:02,075 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-14 22:03:02,075 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-14 22:03:02,075 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-14 22:03:02,513 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-14 22:03:02,531 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-14 22:03:02,535 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-14 22:03:02,537 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-14 22:03:02,538 INFO L275 PluginConnector]: CDTParser initialized [2020-09-14 22:03:02,539 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe005_tso.oepc.i [2020-09-14 22:03:02,628 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/be4b5d13f/498d960fc0ea4e00a11db69c46b1a286/FLAG5d2cf4baa [2020-09-14 22:03:03,286 INFO L306 CDTParser]: Found 1 translation units. [2020-09-14 22:03:03,287 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe005_tso.oepc.i [2020-09-14 22:03:03,312 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/be4b5d13f/498d960fc0ea4e00a11db69c46b1a286/FLAG5d2cf4baa [2020-09-14 22:03:03,466 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/be4b5d13f/498d960fc0ea4e00a11db69c46b1a286 [2020-09-14 22:03:03,479 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-14 22:03:03,485 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-14 22:03:03,487 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-14 22:03:03,487 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-14 22:03:03,492 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-14 22:03:03,494 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 10:03:03" (1/1) ... [2020-09-14 22:03:03,499 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c79b83b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 10:03:03, skipping insertion in model container [2020-09-14 22:03:03,499 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 10:03:03" (1/1) ... [2020-09-14 22:03:03,511 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-14 22:03:03,563 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-14 22:03:04,181 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-14 22:03:04,201 INFO L203 MainTranslator]: Completed pre-run [2020-09-14 22:03:04,292 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-14 22:03:04,371 INFO L208 MainTranslator]: Completed translation [2020-09-14 22:03:04,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 10:03:04 WrapperNode [2020-09-14 22:03:04,371 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-14 22:03:04,372 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-14 22:03:04,373 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-14 22:03:04,373 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-14 22:03:04,385 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 10:03:04" (1/1) ... [2020-09-14 22:03:04,405 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 10:03:04" (1/1) ... [2020-09-14 22:03:04,430 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-14 22:03:04,431 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-14 22:03:04,431 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-14 22:03:04,431 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-14 22:03:04,443 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 10:03:04" (1/1) ... [2020-09-14 22:03:04,444 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 10:03:04" (1/1) ... [2020-09-14 22:03:04,447 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 10:03:04" (1/1) ... [2020-09-14 22:03:04,448 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 10:03:04" (1/1) ... [2020-09-14 22:03:04,454 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 10:03:04" (1/1) ... [2020-09-14 22:03:04,458 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 10:03:04" (1/1) ... [2020-09-14 22:03:04,460 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 10:03:04" (1/1) ... [2020-09-14 22:03:04,464 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-14 22:03:04,464 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-14 22:03:04,465 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-14 22:03:04,465 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-14 22:03:04,466 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 10:03:04" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-14 22:03:04,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-14 22:03:04,543 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-14 22:03:04,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-14 22:03:04,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-14 22:03:04,544 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-14 22:03:04,544 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-14 22:03:04,544 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-14 22:03:04,544 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-14 22:03:04,544 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-14 22:03:04,545 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-14 22:03:04,545 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-14 22:03:04,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-14 22:03:04,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-14 22:03:04,548 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-14 22:03:04,970 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-14 22:03:04,971 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-14 22:03:04,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 10:03:04 BoogieIcfgContainer [2020-09-14 22:03:04,977 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-14 22:03:04,978 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-14 22:03:04,979 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-14 22:03:04,982 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-14 22:03:04,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.09 10:03:03" (1/3) ... [2020-09-14 22:03:04,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@524cf3e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 10:03:04, skipping insertion in model container [2020-09-14 22:03:04,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 10:03:04" (2/3) ... [2020-09-14 22:03:04,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@524cf3e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 10:03:04, skipping insertion in model container [2020-09-14 22:03:04,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 10:03:04" (3/3) ... [2020-09-14 22:03:04,987 INFO L109 eAbstractionObserver]: Analyzing ICFG safe005_tso.oepc.i [2020-09-14 22:03:04,999 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-14 22:03:05,000 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-14 22:03:05,010 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-14 22:03:05,011 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-14 22:03:05,040 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 22:03:05,040 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 22:03:05,040 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 22:03:05,041 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 22:03:05,041 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 22:03:05,042 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 22:03:05,042 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 22:03:05,042 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 22:03:05,043 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 22:03:05,043 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 22:03:05,043 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 22:03:05,043 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 22:03:05,044 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 22:03:05,044 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 22:03:05,044 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 22:03:05,045 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 22:03:05,045 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 22:03:05,045 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 22:03:05,050 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 22:03:05,051 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 22:03:05,051 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 22:03:05,051 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 22:03:05,060 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 22:03:05,060 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 22:03:05,061 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 22:03:05,061 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 22:03:05,068 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 22:03:05,069 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 22:03:05,069 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 22:03:05,069 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 22:03:05,094 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-14 22:03:05,118 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-14 22:03:05,119 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-14 22:03:05,119 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-14 22:03:05,119 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-14 22:03:05,119 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-14 22:03:05,120 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-14 22:03:05,120 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-14 22:03:05,120 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-14 22:03:05,139 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-09-14 22:03:05,142 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-09-14 22:03:05,194 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-09-14 22:03:05,195 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-14 22:03:05,201 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-14 22:03:05,205 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-09-14 22:03:05,229 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-09-14 22:03:05,229 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-14 22:03:05,230 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-14 22:03:05,232 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-09-14 22:03:05,234 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-14 22:03:07,100 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2768 [2020-09-14 22:03:07,101 INFO L214 etLargeBlockEncoding]: Total number of compositions: 58 [2020-09-14 22:03:07,106 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-09-14 22:03:07,141 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-09-14 22:03:07,144 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-09-14 22:03:07,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-14 22:03:07,154 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 22:03:07,155 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 22:03:07,155 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 22:03:07,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 22:03:07,163 INFO L82 PathProgramCache]: Analyzing trace with hash 1655297948, now seen corresponding path program 1 times [2020-09-14 22:03:07,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 22:03:07,176 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127204745] [2020-09-14 22:03:07,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 22:03:07,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 22:03:07,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 22:03:07,427 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127204745] [2020-09-14 22:03:07,428 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 22:03:07,428 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-14 22:03:07,429 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846155699] [2020-09-14 22:03:07,435 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-14 22:03:07,436 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 22:03:07,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-14 22:03:07,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-14 22:03:07,457 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-09-14 22:03:07,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 22:03:07,513 INFO L93 Difference]: Finished difference Result 266 states and 752 transitions. [2020-09-14 22:03:07,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-14 22:03:07,515 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-09-14 22:03:07,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 22:03:07,534 INFO L225 Difference]: With dead ends: 266 [2020-09-14 22:03:07,535 INFO L226 Difference]: Without dead ends: 202 [2020-09-14 22:03:07,537 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-14 22:03:07,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-09-14 22:03:07,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-09-14 22:03:07,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-09-14 22:03:07,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 544 transitions. [2020-09-14 22:03:07,610 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 544 transitions. Word has length 8 [2020-09-14 22:03:07,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 22:03:07,612 INFO L479 AbstractCegarLoop]: Abstraction has 202 states and 544 transitions. [2020-09-14 22:03:07,612 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-14 22:03:07,612 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-09-14 22:03:07,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-14 22:03:07,614 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 22:03:07,614 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 22:03:07,614 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-14 22:03:07,615 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 22:03:07,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 22:03:07,615 INFO L82 PathProgramCache]: Analyzing trace with hash 1603389483, now seen corresponding path program 1 times [2020-09-14 22:03:07,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 22:03:07,616 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090546102] [2020-09-14 22:03:07,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 22:03:07,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 22:03:07,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 22:03:07,765 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090546102] [2020-09-14 22:03:07,765 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 22:03:07,766 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-14 22:03:07,766 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435937634] [2020-09-14 22:03:07,768 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-14 22:03:07,768 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 22:03:07,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-14 22:03:07,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-14 22:03:07,769 INFO L87 Difference]: Start difference. First operand 202 states and 544 transitions. Second operand 4 states. [2020-09-14 22:03:07,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 22:03:07,804 INFO L93 Difference]: Finished difference Result 254 states and 666 transitions. [2020-09-14 22:03:07,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-14 22:03:07,804 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-09-14 22:03:07,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 22:03:07,807 INFO L225 Difference]: With dead ends: 254 [2020-09-14 22:03:07,807 INFO L226 Difference]: Without dead ends: 190 [2020-09-14 22:03:07,808 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-14 22:03:07,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2020-09-14 22:03:07,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2020-09-14 22:03:07,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2020-09-14 22:03:07,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 502 transitions. [2020-09-14 22:03:07,827 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 502 transitions. Word has length 10 [2020-09-14 22:03:07,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 22:03:07,828 INFO L479 AbstractCegarLoop]: Abstraction has 190 states and 502 transitions. [2020-09-14 22:03:07,828 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-14 22:03:07,828 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 502 transitions. [2020-09-14 22:03:07,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-14 22:03:07,830 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 22:03:07,830 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 22:03:07,830 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-14 22:03:07,831 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 22:03:07,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 22:03:07,831 INFO L82 PathProgramCache]: Analyzing trace with hash -1533986257, now seen corresponding path program 1 times [2020-09-14 22:03:07,831 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 22:03:07,832 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45458923] [2020-09-14 22:03:07,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 22:03:07,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 22:03:07,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 22:03:07,944 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45458923] [2020-09-14 22:03:07,945 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 22:03:07,945 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-14 22:03:07,946 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711666517] [2020-09-14 22:03:07,946 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-14 22:03:07,947 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 22:03:07,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-14 22:03:07,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-14 22:03:07,947 INFO L87 Difference]: Start difference. First operand 190 states and 502 transitions. Second operand 4 states. [2020-09-14 22:03:07,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 22:03:07,983 INFO L93 Difference]: Finished difference Result 286 states and 722 transitions. [2020-09-14 22:03:07,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-14 22:03:07,983 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-09-14 22:03:07,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 22:03:07,985 INFO L225 Difference]: With dead ends: 286 [2020-09-14 22:03:07,986 INFO L226 Difference]: Without dead ends: 178 [2020-09-14 22:03:07,986 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-14 22:03:07,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-09-14 22:03:07,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 154. [2020-09-14 22:03:07,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-09-14 22:03:08,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 376 transitions. [2020-09-14 22:03:08,000 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 376 transitions. Word has length 11 [2020-09-14 22:03:08,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 22:03:08,001 INFO L479 AbstractCegarLoop]: Abstraction has 154 states and 376 transitions. [2020-09-14 22:03:08,001 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-14 22:03:08,001 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 376 transitions. [2020-09-14 22:03:08,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-14 22:03:08,003 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 22:03:08,003 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 22:03:08,003 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-14 22:03:08,003 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 22:03:08,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 22:03:08,004 INFO L82 PathProgramCache]: Analyzing trace with hash -1026948662, now seen corresponding path program 1 times [2020-09-14 22:03:08,004 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 22:03:08,004 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182042085] [2020-09-14 22:03:08,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 22:03:08,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 22:03:08,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 22:03:08,062 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182042085] [2020-09-14 22:03:08,062 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 22:03:08,062 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-14 22:03:08,062 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232318615] [2020-09-14 22:03:08,063 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-14 22:03:08,063 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 22:03:08,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-14 22:03:08,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-14 22:03:08,064 INFO L87 Difference]: Start difference. First operand 154 states and 376 transitions. Second operand 3 states. [2020-09-14 22:03:08,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 22:03:08,080 INFO L93 Difference]: Finished difference Result 174 states and 416 transitions. [2020-09-14 22:03:08,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-14 22:03:08,081 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-09-14 22:03:08,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 22:03:08,082 INFO L225 Difference]: With dead ends: 174 [2020-09-14 22:03:08,082 INFO L226 Difference]: Without dead ends: 72 [2020-09-14 22:03:08,082 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-14 22:03:08,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-09-14 22:03:08,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2020-09-14 22:03:08,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-09-14 22:03:08,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 154 transitions. [2020-09-14 22:03:08,088 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 154 transitions. Word has length 12 [2020-09-14 22:03:08,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 22:03:08,088 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 154 transitions. [2020-09-14 22:03:08,088 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-14 22:03:08,089 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 154 transitions. [2020-09-14 22:03:08,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-14 22:03:08,090 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 22:03:08,090 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 22:03:08,090 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-14 22:03:08,090 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 22:03:08,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 22:03:08,091 INFO L82 PathProgramCache]: Analyzing trace with hash -1770638686, now seen corresponding path program 1 times [2020-09-14 22:03:08,091 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 22:03:08,091 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769859706] [2020-09-14 22:03:08,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 22:03:08,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 22:03:08,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 22:03:08,180 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769859706] [2020-09-14 22:03:08,181 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 22:03:08,181 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-14 22:03:08,181 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818496667] [2020-09-14 22:03:08,182 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-14 22:03:08,182 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 22:03:08,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-14 22:03:08,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-14 22:03:08,183 INFO L87 Difference]: Start difference. First operand 72 states and 154 transitions. Second operand 4 states. [2020-09-14 22:03:08,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 22:03:08,211 INFO L93 Difference]: Finished difference Result 85 states and 167 transitions. [2020-09-14 22:03:08,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-14 22:03:08,211 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-09-14 22:03:08,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 22:03:08,212 INFO L225 Difference]: With dead ends: 85 [2020-09-14 22:03:08,212 INFO L226 Difference]: Without dead ends: 61 [2020-09-14 22:03:08,213 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-14 22:03:08,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-09-14 22:03:08,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2020-09-14 22:03:08,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-09-14 22:03:08,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 118 transitions. [2020-09-14 22:03:08,231 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 118 transitions. Word has length 13 [2020-09-14 22:03:08,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 22:03:08,232 INFO L479 AbstractCegarLoop]: Abstraction has 61 states and 118 transitions. [2020-09-14 22:03:08,232 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-14 22:03:08,232 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 118 transitions. [2020-09-14 22:03:08,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-14 22:03:08,233 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 22:03:08,233 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 22:03:08,233 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-14 22:03:08,233 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 22:03:08,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 22:03:08,233 INFO L82 PathProgramCache]: Analyzing trace with hash -1873051802, now seen corresponding path program 1 times [2020-09-14 22:03:08,234 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 22:03:08,234 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561656939] [2020-09-14 22:03:08,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 22:03:08,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 22:03:08,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 22:03:08,303 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561656939] [2020-09-14 22:03:08,303 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 22:03:08,303 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-14 22:03:08,304 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865045896] [2020-09-14 22:03:08,304 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-14 22:03:08,304 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 22:03:08,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-14 22:03:08,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-14 22:03:08,305 INFO L87 Difference]: Start difference. First operand 61 states and 118 transitions. Second operand 5 states. [2020-09-14 22:03:08,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 22:03:08,349 INFO L93 Difference]: Finished difference Result 62 states and 108 transitions. [2020-09-14 22:03:08,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-14 22:03:08,350 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-09-14 22:03:08,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 22:03:08,351 INFO L225 Difference]: With dead ends: 62 [2020-09-14 22:03:08,351 INFO L226 Difference]: Without dead ends: 47 [2020-09-14 22:03:08,351 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-14 22:03:08,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-09-14 22:03:08,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-09-14 22:03:08,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-09-14 22:03:08,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 78 transitions. [2020-09-14 22:03:08,354 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 78 transitions. Word has length 14 [2020-09-14 22:03:08,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 22:03:08,355 INFO L479 AbstractCegarLoop]: Abstraction has 47 states and 78 transitions. [2020-09-14 22:03:08,355 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-14 22:03:08,355 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 78 transitions. [2020-09-14 22:03:08,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-14 22:03:08,356 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 22:03:08,356 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 22:03:08,356 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-14 22:03:08,356 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 22:03:08,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 22:03:08,357 INFO L82 PathProgramCache]: Analyzing trace with hash 877737129, now seen corresponding path program 1 times [2020-09-14 22:03:08,357 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 22:03:08,357 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215004488] [2020-09-14 22:03:08,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 22:03:08,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 22:03:08,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 22:03:08,427 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215004488] [2020-09-14 22:03:08,427 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 22:03:08,427 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-14 22:03:08,428 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398602757] [2020-09-14 22:03:08,428 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-14 22:03:08,428 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 22:03:08,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-14 22:03:08,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-14 22:03:08,429 INFO L87 Difference]: Start difference. First operand 47 states and 78 transitions. Second operand 6 states. [2020-09-14 22:03:08,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 22:03:08,477 INFO L93 Difference]: Finished difference Result 44 states and 70 transitions. [2020-09-14 22:03:08,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-14 22:03:08,479 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-09-14 22:03:08,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 22:03:08,480 INFO L225 Difference]: With dead ends: 44 [2020-09-14 22:03:08,480 INFO L226 Difference]: Without dead ends: 38 [2020-09-14 22:03:08,480 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-09-14 22:03:08,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-14 22:03:08,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-09-14 22:03:08,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-09-14 22:03:08,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 60 transitions. [2020-09-14 22:03:08,483 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 60 transitions. Word has length 15 [2020-09-14 22:03:08,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 22:03:08,483 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 60 transitions. [2020-09-14 22:03:08,483 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-14 22:03:08,483 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 60 transitions. [2020-09-14 22:03:08,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-14 22:03:08,484 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 22:03:08,485 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 22:03:08,485 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-14 22:03:08,485 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 22:03:08,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 22:03:08,485 INFO L82 PathProgramCache]: Analyzing trace with hash 1637147722, now seen corresponding path program 1 times [2020-09-14 22:03:08,486 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 22:03:08,486 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615193233] [2020-09-14 22:03:08,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 22:03:08,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 22:03:08,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 22:03:08,540 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615193233] [2020-09-14 22:03:08,540 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 22:03:08,541 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-14 22:03:08,541 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626060794] [2020-09-14 22:03:08,541 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-14 22:03:08,542 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 22:03:08,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-14 22:03:08,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-14 22:03:08,542 INFO L87 Difference]: Start difference. First operand 38 states and 60 transitions. Second operand 4 states. [2020-09-14 22:03:08,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 22:03:08,552 INFO L93 Difference]: Finished difference Result 37 states and 59 transitions. [2020-09-14 22:03:08,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-14 22:03:08,553 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-09-14 22:03:08,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 22:03:08,553 INFO L225 Difference]: With dead ends: 37 [2020-09-14 22:03:08,553 INFO L226 Difference]: Without dead ends: 0 [2020-09-14 22:03:08,554 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-14 22:03:08,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-14 22:03:08,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-14 22:03:08,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-14 22:03:08,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-14 22:03:08,555 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-09-14 22:03:08,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 22:03:08,555 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-14 22:03:08,555 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-14 22:03:08,556 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-14 22:03:08,556 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-14 22:03:08,556 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-14 22:03:08,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.09 10:03:08 BasicIcfg [2020-09-14 22:03:08,561 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-14 22:03:08,565 INFO L168 Benchmark]: Toolchain (without parser) took 5082.59 ms. Allocated memory was 145.2 MB in the beginning and 252.2 MB in the end (delta: 107.0 MB). Free memory was 100.1 MB in the beginning and 176.7 MB in the end (delta: -76.6 MB). Peak memory consumption was 30.3 MB. Max. memory is 7.1 GB. [2020-09-14 22:03:08,566 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 145.2 MB. Free memory was 119.9 MB in the beginning and 119.5 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB. [2020-09-14 22:03:08,567 INFO L168 Benchmark]: CACSL2BoogieTranslator took 885.01 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 99.3 MB in the beginning and 160.5 MB in the end (delta: -61.2 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. [2020-09-14 22:03:08,568 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.33 ms. Allocated memory is still 202.4 MB. Free memory was 160.5 MB in the beginning and 157.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2020-09-14 22:03:08,569 INFO L168 Benchmark]: Boogie Preprocessor took 33.03 ms. Allocated memory is still 202.4 MB. Free memory was 157.5 MB in the beginning and 156.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 7.1 GB. [2020-09-14 22:03:08,569 INFO L168 Benchmark]: RCFGBuilder took 512.68 ms. Allocated memory is still 202.4 MB. Free memory was 156.5 MB in the beginning and 133.9 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. [2020-09-14 22:03:08,571 INFO L168 Benchmark]: TraceAbstraction took 3582.96 ms. Allocated memory was 202.4 MB in the beginning and 252.2 MB in the end (delta: 49.8 MB). Free memory was 133.9 MB in the beginning and 176.7 MB in the end (delta: -42.8 MB). Peak memory consumption was 7.0 MB. Max. memory is 7.1 GB. [2020-09-14 22:03:08,576 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 145.2 MB. Free memory was 119.9 MB in the beginning and 119.5 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 885.01 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 99.3 MB in the beginning and 160.5 MB in the end (delta: -61.2 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 58.33 ms. Allocated memory is still 202.4 MB. Free memory was 160.5 MB in the beginning and 157.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 33.03 ms. Allocated memory is still 202.4 MB. Free memory was 157.5 MB in the beginning and 156.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 512.68 ms. Allocated memory is still 202.4 MB. Free memory was 156.5 MB in the beginning and 133.9 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3582.96 ms. Allocated memory was 202.4 MB in the beginning and 252.2 MB in the end (delta: 49.8 MB). Free memory was 133.9 MB in the beginning and 176.7 MB in the end (delta: -42.8 MB). Peak memory consumption was 7.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.9s, 78 ProgramPointsBefore, 31 ProgramPointsAfterwards, 70 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 8 FixpointIterations, 14 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 679 VarBasedMoverChecksPositive, 35 VarBasedMoverChecksNegative, 18 SemBasedMoverChecksPositive, 34 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 2768 CheckedPairsTotal, 58 TotalNumberOfCompositions - 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, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.4s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 157 SDtfs, 123 SDslu, 177 SDs, 0 SdLazy, 115 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 24 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 100 NumberOfCodeBlocks, 100 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 92 ConstructedInterpolants, 0 QuantifiedInterpolants, 2940 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...