/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/thin001_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-60655ea [2020-09-15 00:17:21,834 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-15 00:17:21,839 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-15 00:17:21,882 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-15 00:17:21,882 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-15 00:17:21,890 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-15 00:17:21,893 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-15 00:17:21,897 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-15 00:17:21,900 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-15 00:17:21,905 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-15 00:17:21,906 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-15 00:17:21,907 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-15 00:17:21,907 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-15 00:17:21,910 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-15 00:17:21,913 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-15 00:17:21,914 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-15 00:17:21,916 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-15 00:17:21,917 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-15 00:17:21,918 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-15 00:17:21,927 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-15 00:17:21,929 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-15 00:17:21,930 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-15 00:17:21,931 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-15 00:17:21,934 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-15 00:17:21,947 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-15 00:17:21,947 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-15 00:17:21,947 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-15 00:17:21,948 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-15 00:17:21,949 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-15 00:17:21,950 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-15 00:17:21,950 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-15 00:17:21,952 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-15 00:17:21,953 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-15 00:17:21,954 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-15 00:17:21,955 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-15 00:17:21,955 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-15 00:17:21,956 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-15 00:17:21,956 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-15 00:17:21,956 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-15 00:17:21,958 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-15 00:17:21,959 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-15 00:17:21,960 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 [2020-09-15 00:17:22,002 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-15 00:17:22,003 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-15 00:17:22,005 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-15 00:17:22,005 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-15 00:17:22,005 INFO L138 SettingsManager]: * Use SBE=true [2020-09-15 00:17:22,006 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-15 00:17:22,006 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-15 00:17:22,006 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-15 00:17:22,006 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-15 00:17:22,006 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-15 00:17:22,007 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-15 00:17:22,008 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-15 00:17:22,008 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-15 00:17:22,008 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-15 00:17:22,009 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-15 00:17:22,009 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-15 00:17:22,009 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-15 00:17:22,009 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-15 00:17:22,009 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-15 00:17:22,010 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-15 00:17:22,010 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-15 00:17:22,010 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-15 00:17:22,010 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-15 00:17:22,010 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-15 00:17:22,011 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-15 00:17:22,011 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-15 00:17:22,011 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-15 00:17:22,011 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-15 00:17:22,011 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-15 00:17:22,012 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-15 00:17:22,446 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-15 00:17:22,465 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-15 00:17:22,470 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-15 00:17:22,474 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-15 00:17:22,474 INFO L275 PluginConnector]: CDTParser initialized [2020-09-15 00:17:22,476 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin001_pso.oepc.i [2020-09-15 00:17:22,561 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d08f10161/4282515ddc924161b4e68fdcb630abe9/FLAG08b5f63e4 [2020-09-15 00:17:23,244 INFO L306 CDTParser]: Found 1 translation units. [2020-09-15 00:17:23,245 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/thin001_pso.oepc.i [2020-09-15 00:17:23,261 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d08f10161/4282515ddc924161b4e68fdcb630abe9/FLAG08b5f63e4 [2020-09-15 00:17:23,428 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d08f10161/4282515ddc924161b4e68fdcb630abe9 [2020-09-15 00:17:23,442 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-15 00:17:23,447 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-15 00:17:23,448 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-15 00:17:23,449 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-15 00:17:23,455 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-15 00:17:23,456 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 12:17:23" (1/1) ... [2020-09-15 00:17:23,461 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@462e4a5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:17:23, skipping insertion in model container [2020-09-15 00:17:23,462 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 12:17:23" (1/1) ... [2020-09-15 00:17:23,472 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-15 00:17:23,525 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-15 00:17:24,088 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-15 00:17:24,108 INFO L203 MainTranslator]: Completed pre-run [2020-09-15 00:17:24,180 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-15 00:17:24,276 INFO L208 MainTranslator]: Completed translation [2020-09-15 00:17:24,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:17:24 WrapperNode [2020-09-15 00:17:24,277 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-15 00:17:24,278 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-15 00:17:24,278 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-15 00:17:24,278 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-15 00:17:24,292 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:17:24" (1/1) ... [2020-09-15 00:17:24,313 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:17:24" (1/1) ... [2020-09-15 00:17:24,343 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-15 00:17:24,343 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-15 00:17:24,344 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-15 00:17:24,344 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-15 00:17:24,356 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:17:24" (1/1) ... [2020-09-15 00:17:24,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:17:24" (1/1) ... [2020-09-15 00:17:24,359 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:17:24" (1/1) ... [2020-09-15 00:17:24,360 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:17:24" (1/1) ... [2020-09-15 00:17:24,367 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:17:24" (1/1) ... [2020-09-15 00:17:24,370 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:17:24" (1/1) ... [2020-09-15 00:17:24,373 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:17:24" (1/1) ... [2020-09-15 00:17:24,376 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-15 00:17:24,377 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-15 00:17:24,377 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-15 00:17:24,377 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-15 00:17:24,378 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:17:24" (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 [2020-09-15 00:17:24,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-15 00:17:24,477 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-15 00:17:24,477 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-15 00:17:24,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-15 00:17:24,478 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-15 00:17:24,478 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-15 00:17:24,478 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-15 00:17:24,478 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-15 00:17:24,479 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-15 00:17:24,479 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-15 00:17:24,479 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-15 00:17:24,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-15 00:17:24,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-15 00:17:24,482 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-15 00:17:24,951 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-15 00:17:24,951 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-15 00:17:24,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 12:17:24 BoogieIcfgContainer [2020-09-15 00:17:24,957 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-15 00:17:24,958 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-15 00:17:24,959 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-15 00:17:24,962 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-15 00:17:24,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 12:17:23" (1/3) ... [2020-09-15 00:17:24,964 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9770f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 12:17:24, skipping insertion in model container [2020-09-15 00:17:24,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:17:24" (2/3) ... [2020-09-15 00:17:24,964 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9770f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 12:17:24, skipping insertion in model container [2020-09-15 00:17:24,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 12:17:24" (3/3) ... [2020-09-15 00:17:24,967 INFO L109 eAbstractionObserver]: Analyzing ICFG thin001_pso.oepc.i [2020-09-15 00:17:24,979 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-15 00:17:24,979 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-15 00:17:24,990 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-15 00:17:24,991 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-15 00:17:25,022 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:17:25,023 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:17:25,023 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:17:25,023 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:17:25,024 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:17:25,024 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:17:25,025 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:17:25,025 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:17:25,025 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:17:25,025 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:17:25,026 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:17:25,026 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:17:25,026 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:17:25,027 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:17:25,027 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:17:25,027 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:17:25,027 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:17:25,028 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:17:25,032 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:17:25,033 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:17:25,033 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:17:25,033 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:17:25,047 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:17:25,047 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:17:25,048 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:17:25,048 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:17:25,063 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:17:25,063 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:17:25,063 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:17:25,064 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:17:25,090 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-15 00:17:25,120 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-15 00:17:25,120 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-15 00:17:25,120 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-15 00:17:25,121 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-15 00:17:25,121 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-15 00:17:25,121 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-15 00:17:25,121 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-15 00:17:25,121 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-15 00:17:25,141 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 71 transitions, 157 flow [2020-09-15 00:17:25,144 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-09-15 00:17:25,192 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-09-15 00:17:25,193 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-15 00:17:25,199 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 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. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-15 00:17:25,202 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-09-15 00:17:25,225 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-09-15 00:17:25,226 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-15 00:17:25,226 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 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. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-15 00:17:25,228 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-09-15 00:17:25,230 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-15 00:17:25,609 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2020-09-15 00:17:26,979 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-09-15 00:17:27,087 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2463 [2020-09-15 00:17:27,088 INFO L214 etLargeBlockEncoding]: Total number of compositions: 57 [2020-09-15 00:17:27,092 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-09-15 00:17:27,124 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-09-15 00:17:27,127 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-09-15 00:17:27,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-15 00:17:27,137 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 00:17:27,139 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 00:17:27,139 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 00:17:27,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 00:17:27,147 INFO L82 PathProgramCache]: Analyzing trace with hash -691335731, now seen corresponding path program 1 times [2020-09-15 00:17:27,160 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 00:17:27,160 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312920366] [2020-09-15 00:17:27,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 00:17:27,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 00:17:27,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 00:17:27,379 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312920366] [2020-09-15 00:17:27,380 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 00:17:27,380 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 00:17:27,381 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733842385] [2020-09-15 00:17:27,387 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-15 00:17:27,388 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 00:17:27,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-15 00:17:27,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-15 00:17:27,410 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-09-15 00:17:27,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 00:17:27,451 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-09-15 00:17:27,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-15 00:17:27,453 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-09-15 00:17:27,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 00:17:27,475 INFO L225 Difference]: With dead ends: 362 [2020-09-15 00:17:27,475 INFO L226 Difference]: Without dead ends: 298 [2020-09-15 00:17:27,477 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-15 00:17:27,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-09-15 00:17:27,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-09-15 00:17:27,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-09-15 00:17:27,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-09-15 00:17:27,594 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-09-15 00:17:27,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 00:17:27,595 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-09-15 00:17:27,595 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-15 00:17:27,595 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-09-15 00:17:27,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-15 00:17:27,597 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 00:17:27,597 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 00:17:27,597 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-15 00:17:27,598 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 00:17:27,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 00:17:27,598 INFO L82 PathProgramCache]: Analyzing trace with hash 43425274, now seen corresponding path program 1 times [2020-09-15 00:17:27,598 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 00:17:27,599 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973600907] [2020-09-15 00:17:27,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 00:17:27,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 00:17:27,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 00:17:27,801 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973600907] [2020-09-15 00:17:27,801 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 00:17:27,803 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-15 00:17:27,803 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207905196] [2020-09-15 00:17:27,807 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-15 00:17:27,807 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 00:17:27,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-15 00:17:27,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-15 00:17:27,808 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 5 states. [2020-09-15 00:17:27,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 00:17:27,937 INFO L93 Difference]: Finished difference Result 330 states and 912 transitions. [2020-09-15 00:17:27,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-15 00:17:27,938 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-09-15 00:17:27,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 00:17:27,943 INFO L225 Difference]: With dead ends: 330 [2020-09-15 00:17:27,943 INFO L226 Difference]: Without dead ends: 266 [2020-09-15 00:17:27,947 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-15 00:17:27,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-09-15 00:17:27,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-09-15 00:17:27,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-09-15 00:17:27,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 752 transitions. [2020-09-15 00:17:27,989 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 752 transitions. Word has length 9 [2020-09-15 00:17:27,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 00:17:27,989 INFO L479 AbstractCegarLoop]: Abstraction has 266 states and 752 transitions. [2020-09-15 00:17:27,989 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-15 00:17:27,989 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 752 transitions. [2020-09-15 00:17:27,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-15 00:17:27,991 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 00:17:27,991 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 00:17:27,991 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-15 00:17:27,991 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 00:17:27,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 00:17:27,991 INFO L82 PathProgramCache]: Analyzing trace with hash 1226466257, now seen corresponding path program 1 times [2020-09-15 00:17:27,992 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 00:17:27,992 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211580658] [2020-09-15 00:17:27,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 00:17:28,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 00:17:28,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 00:17:28,174 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211580658] [2020-09-15 00:17:28,174 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 00:17:28,174 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-15 00:17:28,175 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777448272] [2020-09-15 00:17:28,175 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-15 00:17:28,175 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 00:17:28,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-15 00:17:28,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-15 00:17:28,176 INFO L87 Difference]: Start difference. First operand 266 states and 752 transitions. Second operand 6 states. [2020-09-15 00:17:28,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 00:17:28,301 INFO L93 Difference]: Finished difference Result 350 states and 940 transitions. [2020-09-15 00:17:28,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-15 00:17:28,301 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-09-15 00:17:28,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 00:17:28,303 INFO L225 Difference]: With dead ends: 350 [2020-09-15 00:17:28,304 INFO L226 Difference]: Without dead ends: 182 [2020-09-15 00:17:28,304 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-09-15 00:17:28,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-09-15 00:17:28,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2020-09-15 00:17:28,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-09-15 00:17:28,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 458 transitions. [2020-09-15 00:17:28,313 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 458 transitions. Word has length 10 [2020-09-15 00:17:28,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 00:17:28,313 INFO L479 AbstractCegarLoop]: Abstraction has 182 states and 458 transitions. [2020-09-15 00:17:28,313 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-15 00:17:28,314 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 458 transitions. [2020-09-15 00:17:28,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-15 00:17:28,315 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 00:17:28,315 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 00:17:28,316 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-15 00:17:28,316 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 00:17:28,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 00:17:28,316 INFO L82 PathProgramCache]: Analyzing trace with hash 1670897012, now seen corresponding path program 1 times [2020-09-15 00:17:28,317 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 00:17:28,317 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021630530] [2020-09-15 00:17:28,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 00:17:28,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 00:17:28,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 00:17:28,416 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021630530] [2020-09-15 00:17:28,416 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 00:17:28,417 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-15 00:17:28,417 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431063405] [2020-09-15 00:17:28,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-15 00:17:28,418 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 00:17:28,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-15 00:17:28,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-15 00:17:28,419 INFO L87 Difference]: Start difference. First operand 182 states and 458 transitions. Second operand 5 states. [2020-09-15 00:17:28,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 00:17:28,480 INFO L93 Difference]: Finished difference Result 233 states and 559 transitions. [2020-09-15 00:17:28,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-15 00:17:28,481 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-09-15 00:17:28,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 00:17:28,482 INFO L225 Difference]: With dead ends: 233 [2020-09-15 00:17:28,482 INFO L226 Difference]: Without dead ends: 92 [2020-09-15 00:17:28,483 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-15 00:17:28,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-09-15 00:17:28,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2020-09-15 00:17:28,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-09-15 00:17:28,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 210 transitions. [2020-09-15 00:17:28,491 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 210 transitions. Word has length 12 [2020-09-15 00:17:28,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 00:17:28,491 INFO L479 AbstractCegarLoop]: Abstraction has 92 states and 210 transitions. [2020-09-15 00:17:28,491 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-15 00:17:28,491 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 210 transitions. [2020-09-15 00:17:28,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-15 00:17:28,493 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 00:17:28,493 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 00:17:28,493 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-15 00:17:28,510 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 00:17:28,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 00:17:28,511 INFO L82 PathProgramCache]: Analyzing trace with hash -1277780743, now seen corresponding path program 1 times [2020-09-15 00:17:28,511 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 00:17:28,511 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980187207] [2020-09-15 00:17:28,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 00:17:28,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 00:17:28,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 00:17:28,648 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980187207] [2020-09-15 00:17:28,648 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 00:17:28,648 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-15 00:17:28,649 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659309642] [2020-09-15 00:17:28,649 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-15 00:17:28,649 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 00:17:28,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-15 00:17:28,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-15 00:17:28,652 INFO L87 Difference]: Start difference. First operand 92 states and 210 transitions. Second operand 5 states. [2020-09-15 00:17:28,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 00:17:28,694 INFO L93 Difference]: Finished difference Result 77 states and 170 transitions. [2020-09-15 00:17:28,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-15 00:17:28,696 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-09-15 00:17:28,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 00:17:28,697 INFO L225 Difference]: With dead ends: 77 [2020-09-15 00:17:28,697 INFO L226 Difference]: Without dead ends: 0 [2020-09-15 00:17:28,697 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-15 00:17:28,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-15 00:17:28,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-15 00:17:28,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-15 00:17:28,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-15 00:17:28,701 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-09-15 00:17:28,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 00:17:28,701 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-15 00:17:28,701 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-15 00:17:28,701 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-15 00:17:28,701 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-15 00:17:28,702 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-15 00:17:28,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 12:17:28 BasicIcfg [2020-09-15 00:17:28,708 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-15 00:17:28,711 INFO L168 Benchmark]: Toolchain (without parser) took 5265.83 ms. Allocated memory was 140.0 MB in the beginning and 247.5 MB in the end (delta: 107.5 MB). Free memory was 100.5 MB in the beginning and 198.4 MB in the end (delta: -97.9 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-09-15 00:17:28,713 INFO L168 Benchmark]: CDTParser took 0.52 ms. Allocated memory is still 140.0 MB. Free memory was 120.3 MB in the beginning and 120.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-15 00:17:28,715 INFO L168 Benchmark]: CACSL2BoogieTranslator took 828.71 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 99.8 MB in the beginning and 159.9 MB in the end (delta: -60.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. [2020-09-15 00:17:28,721 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.61 ms. Allocated memory is still 203.4 MB. Free memory was 159.9 MB in the beginning and 158.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-15 00:17:28,722 INFO L168 Benchmark]: Boogie Preprocessor took 32.85 ms. Allocated memory is still 203.4 MB. Free memory was 158.0 MB in the beginning and 156.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-09-15 00:17:28,723 INFO L168 Benchmark]: RCFGBuilder took 580.61 ms. Allocated memory is still 203.4 MB. Free memory was 156.7 MB in the beginning and 134.1 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. [2020-09-15 00:17:28,724 INFO L168 Benchmark]: TraceAbstraction took 3749.31 ms. Allocated memory was 203.4 MB in the beginning and 247.5 MB in the end (delta: 44.0 MB). Free memory was 133.5 MB in the beginning and 198.4 MB in the end (delta: -64.9 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-15 00:17:28,734 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52 ms. Allocated memory is still 140.0 MB. Free memory was 120.3 MB in the beginning and 120.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 828.71 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 99.8 MB in the beginning and 159.9 MB in the end (delta: -60.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 65.61 ms. Allocated memory is still 203.4 MB. Free memory was 159.9 MB in the beginning and 158.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 32.85 ms. Allocated memory is still 203.4 MB. Free memory was 158.0 MB in the beginning and 156.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 580.61 ms. Allocated memory is still 203.4 MB. Free memory was 156.7 MB in the beginning and 134.1 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3749.31 ms. Allocated memory was 203.4 MB in the beginning and 247.5 MB in the end (delta: 44.0 MB). Free memory was 133.5 MB in the beginning and 198.4 MB in the end (delta: -64.9 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.9s, 79 ProgramPointsBefore, 32 ProgramPointsAfterwards, 71 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 688 VarBasedMoverChecksPositive, 31 VarBasedMoverChecksNegative, 17 SemBasedMoverChecksPositive, 29 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 2463 CheckedPairsTotal, 57 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, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 101 SDtfs, 164 SDslu, 177 SDs, 0 SdLazy, 84 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 2061 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...