/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/safe023_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-bf4350c [2020-09-17 00:35:11,894 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-17 00:35:11,898 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-17 00:35:11,946 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-17 00:35:11,947 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-17 00:35:11,948 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-17 00:35:11,949 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-17 00:35:11,951 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-17 00:35:11,952 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-17 00:35:11,953 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-17 00:35:11,954 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-17 00:35:11,955 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-17 00:35:11,956 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-17 00:35:11,957 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-17 00:35:11,958 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-17 00:35:11,959 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-17 00:35:11,960 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-17 00:35:11,961 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-17 00:35:11,962 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-17 00:35:11,964 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-17 00:35:11,966 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-17 00:35:11,967 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-17 00:35:11,968 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-17 00:35:11,969 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-17 00:35:11,971 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-17 00:35:11,974 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-17 00:35:11,975 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-17 00:35:11,976 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-17 00:35:11,976 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-17 00:35:11,977 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-17 00:35:11,978 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-17 00:35:11,978 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-17 00:35:11,979 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-17 00:35:11,979 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-17 00:35:11,980 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-17 00:35:11,980 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-17 00:35:11,981 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-17 00:35:12,005 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-17 00:35:12,005 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-17 00:35:12,007 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-17 00:35:12,007 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-17 00:35:12,007 INFO L138 SettingsManager]: * Use SBE=true [2020-09-17 00:35:12,007 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-17 00:35:12,008 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-17 00:35:12,008 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-17 00:35:12,008 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-17 00:35:12,008 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-17 00:35:12,008 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-17 00:35:12,009 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-17 00:35:12,009 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-17 00:35:12,010 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-17 00:35:12,010 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-17 00:35:12,010 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-17 00:35:12,010 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-17 00:35:12,011 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-17 00:35:12,011 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-17 00:35:12,011 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-17 00:35:12,011 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-17 00:35:12,011 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-17 00:35:12,012 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-17 00:35:12,012 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-17 00:35:12,012 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-17 00:35:12,012 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-17 00:35:12,013 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-17 00:35:12,013 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-17 00:35:12,013 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-17 00:35:12,013 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-17 00:35:12,471 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-17 00:35:12,491 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-17 00:35:12,495 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-17 00:35:12,497 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-17 00:35:12,497 INFO L275 PluginConnector]: CDTParser initialized [2020-09-17 00:35:12,498 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe023_tso.oepc.i [2020-09-17 00:35:12,572 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0dbd08d37/143f8b0c21ac4e7794d92d81feda0632/FLAGa4995f7db [2020-09-17 00:35:13,235 INFO L306 CDTParser]: Found 1 translation units. [2020-09-17 00:35:13,236 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe023_tso.oepc.i [2020-09-17 00:35:13,255 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0dbd08d37/143f8b0c21ac4e7794d92d81feda0632/FLAGa4995f7db [2020-09-17 00:35:13,432 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0dbd08d37/143f8b0c21ac4e7794d92d81feda0632 [2020-09-17 00:35:13,448 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-17 00:35:13,454 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-17 00:35:13,457 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-17 00:35:13,457 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-17 00:35:13,462 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-17 00:35:13,463 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 12:35:13" (1/1) ... [2020-09-17 00:35:13,467 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e6a7531 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:35:13, skipping insertion in model container [2020-09-17 00:35:13,467 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 12:35:13" (1/1) ... [2020-09-17 00:35:13,478 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-17 00:35:13,550 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-17 00:35:14,047 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-17 00:35:14,061 INFO L203 MainTranslator]: Completed pre-run [2020-09-17 00:35:14,123 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-17 00:35:14,199 INFO L208 MainTranslator]: Completed translation [2020-09-17 00:35:14,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:35:14 WrapperNode [2020-09-17 00:35:14,199 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-17 00:35:14,200 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-17 00:35:14,200 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-17 00:35:14,201 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-17 00:35:14,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:35:14" (1/1) ... [2020-09-17 00:35:14,230 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:35:14" (1/1) ... [2020-09-17 00:35:14,254 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-17 00:35:14,254 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-17 00:35:14,255 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-17 00:35:14,255 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-17 00:35:14,263 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:35:14" (1/1) ... [2020-09-17 00:35:14,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:35:14" (1/1) ... [2020-09-17 00:35:14,267 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:35:14" (1/1) ... [2020-09-17 00:35:14,267 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:35:14" (1/1) ... [2020-09-17 00:35:14,274 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:35:14" (1/1) ... [2020-09-17 00:35:14,279 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:35:14" (1/1) ... [2020-09-17 00:35:14,281 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:35:14" (1/1) ... [2020-09-17 00:35:14,285 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-17 00:35:14,285 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-17 00:35:14,285 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-17 00:35:14,286 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-17 00:35:14,287 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:35:14" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-17 00:35:14,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-17 00:35:14,385 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-17 00:35:14,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-17 00:35:14,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-17 00:35:14,385 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-17 00:35:14,386 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-17 00:35:14,386 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-17 00:35:14,387 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-17 00:35:14,387 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-17 00:35:14,388 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-17 00:35:14,388 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-17 00:35:14,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-17 00:35:14,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-17 00:35:14,391 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-17 00:35:14,739 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-17 00:35:14,740 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-17 00:35:14,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 12:35:14 BoogieIcfgContainer [2020-09-17 00:35:14,745 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-17 00:35:14,747 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-17 00:35:14,747 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-17 00:35:14,751 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-17 00:35:14,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.09 12:35:13" (1/3) ... [2020-09-17 00:35:14,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23cd7590 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.09 12:35:14, skipping insertion in model container [2020-09-17 00:35:14,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:35:14" (2/3) ... [2020-09-17 00:35:14,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23cd7590 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.09 12:35:14, skipping insertion in model container [2020-09-17 00:35:14,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 12:35:14" (3/3) ... [2020-09-17 00:35:14,755 INFO L109 eAbstractionObserver]: Analyzing ICFG safe023_tso.oepc.i [2020-09-17 00:35:14,767 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-17 00:35:14,767 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-17 00:35:14,777 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-17 00:35:14,778 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-17 00:35:14,815 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:35:14,818 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:35:14,818 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:35:14,818 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:35:14,819 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:35:14,819 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:35:14,820 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:35:14,820 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:35:14,820 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:35:14,820 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:35:14,821 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:35:14,823 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:35:14,823 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:35:14,823 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:35:14,824 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:35:14,824 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:35:14,824 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:35:14,824 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:35:14,829 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:35:14,829 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:35:14,830 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:35:14,830 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:35:14,837 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:35:14,837 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:35:14,837 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:35:14,838 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:35:14,840 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:35:14,841 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:35:14,841 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:35:14,841 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:35:14,866 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-17 00:35:14,893 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-17 00:35:14,894 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-17 00:35:14,894 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-17 00:35:14,894 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-17 00:35:14,894 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-17 00:35:14,894 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-17 00:35:14,895 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-17 00:35:14,895 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-17 00:35:14,914 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-09-17 00:35:14,916 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-09-17 00:35:14,968 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-09-17 00:35:14,969 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-17 00:35:14,975 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. [2020-09-17 00:35:14,979 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-09-17 00:35:15,001 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-09-17 00:35:15,002 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-17 00:35:15,003 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. [2020-09-17 00:35:15,005 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-09-17 00:35:15,006 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-17 00:35:16,747 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2768 [2020-09-17 00:35:16,748 INFO L214 etLargeBlockEncoding]: Total number of compositions: 58 [2020-09-17 00:35:16,752 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-09-17 00:35:16,781 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-09-17 00:35:16,784 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-09-17 00:35:16,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-17 00:35:16,794 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:35:16,795 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:35:16,795 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:35:16,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:35:16,802 INFO L82 PathProgramCache]: Analyzing trace with hash 1655297948, now seen corresponding path program 1 times [2020-09-17 00:35:16,815 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:35:16,815 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441261201] [2020-09-17 00:35:16,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:35:16,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:35:17,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:35:17,066 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441261201] [2020-09-17 00:35:17,066 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:35:17,067 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-17 00:35:17,067 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434653116] [2020-09-17 00:35:17,073 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-17 00:35:17,073 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:35:17,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-17 00:35:17,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 00:35:17,092 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-09-17 00:35:17,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:35:17,153 INFO L93 Difference]: Finished difference Result 266 states and 752 transitions. [2020-09-17 00:35:17,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-17 00:35:17,158 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-09-17 00:35:17,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:35:17,189 INFO L225 Difference]: With dead ends: 266 [2020-09-17 00:35:17,189 INFO L226 Difference]: Without dead ends: 202 [2020-09-17 00:35:17,191 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 [2020-09-17 00:35:17,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-09-17 00:35:17,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-09-17 00:35:17,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-09-17 00:35:17,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 544 transitions. [2020-09-17 00:35:17,274 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 544 transitions. Word has length 8 [2020-09-17 00:35:17,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:35:17,275 INFO L479 AbstractCegarLoop]: Abstraction has 202 states and 544 transitions. [2020-09-17 00:35:17,276 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-17 00:35:17,276 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-09-17 00:35:17,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-17 00:35:17,277 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:35:17,277 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:35:17,278 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-17 00:35:17,278 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:35:17,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:35:17,278 INFO L82 PathProgramCache]: Analyzing trace with hash 1925985154, now seen corresponding path program 1 times [2020-09-17 00:35:17,278 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:35:17,279 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445021222] [2020-09-17 00:35:17,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:35:17,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:35:17,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:35:17,397 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445021222] [2020-09-17 00:35:17,397 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:35:17,397 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-17 00:35:17,398 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73505477] [2020-09-17 00:35:17,399 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-17 00:35:17,399 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:35:17,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-17 00:35:17,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 00:35:17,400 INFO L87 Difference]: Start difference. First operand 202 states and 544 transitions. Second operand 3 states. [2020-09-17 00:35:17,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:35:17,421 INFO L93 Difference]: Finished difference Result 284 states and 746 transitions. [2020-09-17 00:35:17,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-17 00:35:17,422 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-09-17 00:35:17,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:35:17,424 INFO L225 Difference]: With dead ends: 284 [2020-09-17 00:35:17,424 INFO L226 Difference]: Without dead ends: 164 [2020-09-17 00:35:17,425 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 [2020-09-17 00:35:17,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2020-09-17 00:35:17,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2020-09-17 00:35:17,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-09-17 00:35:17,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 422 transitions. [2020-09-17 00:35:17,439 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 422 transitions. Word has length 10 [2020-09-17 00:35:17,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:35:17,439 INFO L479 AbstractCegarLoop]: Abstraction has 164 states and 422 transitions. [2020-09-17 00:35:17,440 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-17 00:35:17,440 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 422 transitions. [2020-09-17 00:35:17,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-17 00:35:17,441 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:35:17,441 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:35:17,442 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-17 00:35:17,442 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:35:17,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:35:17,442 INFO L82 PathProgramCache]: Analyzing trace with hash -424003265, now seen corresponding path program 1 times [2020-09-17 00:35:17,442 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:35:17,443 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062960271] [2020-09-17 00:35:17,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:35:17,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:35:17,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:35:17,538 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062960271] [2020-09-17 00:35:17,539 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:35:17,539 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-17 00:35:17,539 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978746293] [2020-09-17 00:35:17,539 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-17 00:35:17,539 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:35:17,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-17 00:35:17,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 00:35:17,540 INFO L87 Difference]: Start difference. First operand 164 states and 422 transitions. Second operand 3 states. [2020-09-17 00:35:17,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:35:17,548 INFO L93 Difference]: Finished difference Result 158 states and 403 transitions. [2020-09-17 00:35:17,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-17 00:35:17,549 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-09-17 00:35:17,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:35:17,551 INFO L225 Difference]: With dead ends: 158 [2020-09-17 00:35:17,551 INFO L226 Difference]: Without dead ends: 158 [2020-09-17 00:35:17,552 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 [2020-09-17 00:35:17,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-09-17 00:35:17,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2020-09-17 00:35:17,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-09-17 00:35:17,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 403 transitions. [2020-09-17 00:35:17,564 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 403 transitions. Word has length 11 [2020-09-17 00:35:17,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:35:17,564 INFO L479 AbstractCegarLoop]: Abstraction has 158 states and 403 transitions. [2020-09-17 00:35:17,564 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-17 00:35:17,565 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 403 transitions. [2020-09-17 00:35:17,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-17 00:35:17,566 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:35:17,566 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:35:17,566 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-17 00:35:17,567 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:35:17,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:35:17,567 INFO L82 PathProgramCache]: Analyzing trace with hash -259200532, now seen corresponding path program 1 times [2020-09-17 00:35:17,567 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:35:17,568 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211580658] [2020-09-17 00:35:17,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:35:17,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:35:17,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:35:17,639 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211580658] [2020-09-17 00:35:17,639 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:35:17,640 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-17 00:35:17,640 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692480363] [2020-09-17 00:35:17,640 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-17 00:35:17,640 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:35:17,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-17 00:35:17,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-17 00:35:17,641 INFO L87 Difference]: Start difference. First operand 158 states and 403 transitions. Second operand 4 states. [2020-09-17 00:35:17,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:35:17,663 INFO L93 Difference]: Finished difference Result 188 states and 468 transitions. [2020-09-17 00:35:17,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-17 00:35:17,664 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-09-17 00:35:17,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:35:17,665 INFO L225 Difference]: With dead ends: 188 [2020-09-17 00:35:17,665 INFO L226 Difference]: Without dead ends: 110 [2020-09-17 00:35:17,666 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 [2020-09-17 00:35:17,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-09-17 00:35:17,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2020-09-17 00:35:17,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-09-17 00:35:17,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 255 transitions. [2020-09-17 00:35:17,673 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 255 transitions. Word has length 12 [2020-09-17 00:35:17,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:35:17,674 INFO L479 AbstractCegarLoop]: Abstraction has 110 states and 255 transitions. [2020-09-17 00:35:17,674 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-17 00:35:17,674 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 255 transitions. [2020-09-17 00:35:17,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-17 00:35:17,675 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:35:17,675 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:35:17,676 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-17 00:35:17,676 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:35:17,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:35:17,676 INFO L82 PathProgramCache]: Analyzing trace with hash 554696714, now seen corresponding path program 1 times [2020-09-17 00:35:17,676 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:35:17,677 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936745452] [2020-09-17 00:35:17,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:35:17,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:35:17,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:35:17,792 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936745452] [2020-09-17 00:35:17,793 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:35:17,793 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-17 00:35:17,793 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517140198] [2020-09-17 00:35:17,793 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-17 00:35:17,794 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:35:17,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-17 00:35:17,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-17 00:35:17,794 INFO L87 Difference]: Start difference. First operand 110 states and 255 transitions. Second operand 4 states. [2020-09-17 00:35:17,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:35:17,824 INFO L93 Difference]: Finished difference Result 128 states and 277 transitions. [2020-09-17 00:35:17,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-17 00:35:17,824 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-09-17 00:35:17,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:35:17,826 INFO L225 Difference]: With dead ends: 128 [2020-09-17 00:35:17,826 INFO L226 Difference]: Without dead ends: 97 [2020-09-17 00:35:17,826 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 [2020-09-17 00:35:17,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-09-17 00:35:17,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2020-09-17 00:35:17,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-09-17 00:35:17,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 209 transitions. [2020-09-17 00:35:17,833 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 209 transitions. Word has length 13 [2020-09-17 00:35:17,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:35:17,833 INFO L479 AbstractCegarLoop]: Abstraction has 97 states and 209 transitions. [2020-09-17 00:35:17,833 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-17 00:35:17,834 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 209 transitions. [2020-09-17 00:35:17,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-17 00:35:17,835 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:35:17,835 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:35:17,835 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-17 00:35:17,835 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:35:17,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:35:17,836 INFO L82 PathProgramCache]: Analyzing trace with hash 2052968077, now seen corresponding path program 1 times [2020-09-17 00:35:17,836 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:35:17,836 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124794964] [2020-09-17 00:35:17,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:35:17,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:35:17,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:35:17,908 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124794964] [2020-09-17 00:35:17,908 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:35:17,908 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 00:35:17,908 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360637146] [2020-09-17 00:35:17,910 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-17 00:35:17,910 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:35:17,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-17 00:35:17,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-17 00:35:17,911 INFO L87 Difference]: Start difference. First operand 97 states and 209 transitions. Second operand 5 states. [2020-09-17 00:35:17,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:35:17,959 INFO L93 Difference]: Finished difference Result 99 states and 200 transitions. [2020-09-17 00:35:17,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-17 00:35:17,959 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-09-17 00:35:17,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:35:17,960 INFO L225 Difference]: With dead ends: 99 [2020-09-17 00:35:17,960 INFO L226 Difference]: Without dead ends: 79 [2020-09-17 00:35:17,961 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 [2020-09-17 00:35:17,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-09-17 00:35:17,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2020-09-17 00:35:17,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-09-17 00:35:17,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 157 transitions. [2020-09-17 00:35:17,965 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 157 transitions. Word has length 14 [2020-09-17 00:35:17,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:35:17,966 INFO L479 AbstractCegarLoop]: Abstraction has 79 states and 157 transitions. [2020-09-17 00:35:17,966 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-17 00:35:17,966 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 157 transitions. [2020-09-17 00:35:17,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-17 00:35:17,967 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:35:17,967 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:35:17,967 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-17 00:35:17,967 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:35:17,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:35:17,968 INFO L82 PathProgramCache]: Analyzing trace with hash -1697163721, now seen corresponding path program 1 times [2020-09-17 00:35:17,968 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:35:17,968 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296197665] [2020-09-17 00:35:17,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:35:17,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:35:18,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:35:18,075 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296197665] [2020-09-17 00:35:18,076 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:35:18,076 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-17 00:35:18,076 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053084252] [2020-09-17 00:35:18,076 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-17 00:35:18,077 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:35:18,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-17 00:35:18,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-17 00:35:18,077 INFO L87 Difference]: Start difference. First operand 79 states and 157 transitions. Second operand 6 states. [2020-09-17 00:35:18,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:35:18,153 INFO L93 Difference]: Finished difference Result 76 states and 149 transitions. [2020-09-17 00:35:18,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-17 00:35:18,154 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-09-17 00:35:18,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:35:18,155 INFO L225 Difference]: With dead ends: 76 [2020-09-17 00:35:18,155 INFO L226 Difference]: Without dead ends: 69 [2020-09-17 00:35:18,156 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 [2020-09-17 00:35:18,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-09-17 00:35:18,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-09-17 00:35:18,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-09-17 00:35:18,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 137 transitions. [2020-09-17 00:35:18,162 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 137 transitions. Word has length 15 [2020-09-17 00:35:18,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:35:18,162 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 137 transitions. [2020-09-17 00:35:18,162 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-17 00:35:18,163 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 137 transitions. [2020-09-17 00:35:18,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-17 00:35:18,164 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:35:18,164 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:35:18,164 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-17 00:35:18,165 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:35:18,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:35:18,165 INFO L82 PathProgramCache]: Analyzing trace with hash 1074918836, now seen corresponding path program 1 times [2020-09-17 00:35:18,165 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:35:18,165 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51012566] [2020-09-17 00:35:18,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:35:18,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:35:18,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:35:18,283 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51012566] [2020-09-17 00:35:18,284 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:35:18,284 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 00:35:18,284 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448225127] [2020-09-17 00:35:18,284 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-17 00:35:18,285 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:35:18,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-17 00:35:18,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-17 00:35:18,285 INFO L87 Difference]: Start difference. First operand 69 states and 137 transitions. Second operand 4 states. [2020-09-17 00:35:18,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:35:18,304 INFO L93 Difference]: Finished difference Result 68 states and 136 transitions. [2020-09-17 00:35:18,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-17 00:35:18,305 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-09-17 00:35:18,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:35:18,305 INFO L225 Difference]: With dead ends: 68 [2020-09-17 00:35:18,305 INFO L226 Difference]: Without dead ends: 0 [2020-09-17 00:35:18,306 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-17 00:35:18,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-17 00:35:18,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-17 00:35:18,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-17 00:35:18,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-17 00:35:18,307 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-09-17 00:35:18,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:35:18,307 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-17 00:35:18,307 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-17 00:35:18,307 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-17 00:35:18,308 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-17 00:35:18,308 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-17 00:35:18,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.09 12:35:18 BasicIcfg [2020-09-17 00:35:18,320 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-17 00:35:18,331 INFO L168 Benchmark]: Toolchain (without parser) took 4872.60 ms. Allocated memory was 139.5 MB in the beginning and 249.0 MB in the end (delta: 109.6 MB). Free memory was 101.6 MB in the beginning and 160.5 MB in the end (delta: -58.9 MB). Peak memory consumption was 50.6 MB. Max. memory is 7.1 GB. [2020-09-17 00:35:18,332 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-09-17 00:35:18,336 INFO L168 Benchmark]: CACSL2BoogieTranslator took 742.64 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 101.0 MB in the beginning and 160.8 MB in the end (delta: -59.8 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2020-09-17 00:35:18,337 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.87 ms. Allocated memory is still 202.9 MB. Free memory was 160.8 MB in the beginning and 158.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-17 00:35:18,337 INFO L168 Benchmark]: Boogie Preprocessor took 30.43 ms. Allocated memory is still 202.9 MB. Free memory was 158.8 MB in the beginning and 157.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-09-17 00:35:18,340 INFO L168 Benchmark]: RCFGBuilder took 460.21 ms. Allocated memory is still 202.9 MB. Free memory was 157.4 MB in the beginning and 135.0 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2020-09-17 00:35:18,341 INFO L168 Benchmark]: TraceAbstraction took 3573.16 ms. Allocated memory was 202.9 MB in the beginning and 249.0 MB in the end (delta: 46.1 MB). Free memory was 134.4 MB in the beginning and 160.5 MB in the end (delta: -26.1 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2020-09-17 00:35:18,350 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 742.64 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 101.0 MB in the beginning and 160.8 MB in the end (delta: -59.8 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 53.87 ms. Allocated memory is still 202.9 MB. Free memory was 160.8 MB in the beginning and 158.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.43 ms. Allocated memory is still 202.9 MB. Free memory was 158.8 MB in the beginning and 157.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 460.21 ms. Allocated memory is still 202.9 MB. Free memory was 157.4 MB in the beginning and 135.0 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3573.16 ms. Allocated memory was 202.9 MB in the beginning and 249.0 MB in the end (delta: 46.1 MB). Free memory was 134.4 MB in the beginning and 160.5 MB in the end (delta: -26.1 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.8s, 78 ProgramPointsBefore, 31 ProgramPointsAfterwards, 70 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 8 FixpointIterations, 14 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 677 VarBasedMoverChecksPositive, 35 VarBasedMoverChecksNegative, 19 SemBasedMoverChecksPositive, 35 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: 1.8s, HoareTripleCheckerStatistics: 149 SDtfs, 116 SDslu, 168 SDs, 0 SdLazy, 105 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 100 NumberOfCodeBlocks, 100 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 92 ConstructedInterpolants, 0 QuantifiedInterpolants, 3024 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...