/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/safe003_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-60655ea [2020-09-14 21:54:04,612 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-14 21:54:04,616 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-14 21:54:04,651 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-14 21:54:04,651 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-14 21:54:04,660 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-14 21:54:04,663 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-14 21:54:04,667 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-14 21:54:04,670 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-14 21:54:04,673 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-14 21:54:04,674 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-14 21:54:04,676 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-14 21:54:04,676 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-14 21:54:04,680 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-14 21:54:04,682 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-14 21:54:04,684 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-14 21:54:04,685 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-14 21:54:04,687 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-14 21:54:04,688 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-14 21:54:04,698 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-14 21:54:04,700 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-14 21:54:04,701 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-14 21:54:04,702 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-14 21:54:04,703 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-14 21:54:04,715 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-14 21:54:04,715 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-14 21:54:04,716 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-14 21:54:04,717 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-14 21:54:04,722 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-14 21:54:04,723 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-14 21:54:04,724 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-14 21:54:04,728 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-14 21:54:04,728 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-14 21:54:04,729 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-14 21:54:04,733 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-14 21:54:04,733 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-14 21:54:04,734 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-14 21:54:04,734 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-14 21:54:04,734 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-14 21:54:04,735 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-14 21:54:04,736 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-14 21:54:04,737 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-14 21:54:04,782 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-14 21:54:04,783 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-14 21:54:04,785 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-14 21:54:04,785 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-14 21:54:04,785 INFO L138 SettingsManager]: * Use SBE=true [2020-09-14 21:54:04,786 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-14 21:54:04,786 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-14 21:54:04,786 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-14 21:54:04,787 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-14 21:54:04,787 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-14 21:54:04,788 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-14 21:54:04,788 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-14 21:54:04,788 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-14 21:54:04,789 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-14 21:54:04,789 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-14 21:54:04,789 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-14 21:54:04,789 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-14 21:54:04,790 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-14 21:54:04,790 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-14 21:54:04,790 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-14 21:54:04,790 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-14 21:54:04,790 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-14 21:54:04,791 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-14 21:54:04,791 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-14 21:54:04,791 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-14 21:54:04,791 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-14 21:54:04,791 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-14 21:54:04,792 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-14 21:54:04,792 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-14 21:54:04,792 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-14 21:54:05,226 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-14 21:54:05,244 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-14 21:54:05,248 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-14 21:54:05,250 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-14 21:54:05,250 INFO L275 PluginConnector]: CDTParser initialized [2020-09-14 21:54:05,251 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i [2020-09-14 21:54:05,333 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4a702c0dd/a35decf2c9734735a3e050d1f4a2b667/FLAG70ab41533 [2020-09-14 21:54:05,991 INFO L306 CDTParser]: Found 1 translation units. [2020-09-14 21:54:05,992 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i [2020-09-14 21:54:06,013 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4a702c0dd/a35decf2c9734735a3e050d1f4a2b667/FLAG70ab41533 [2020-09-14 21:54:06,247 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4a702c0dd/a35decf2c9734735a3e050d1f4a2b667 [2020-09-14 21:54:06,260 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-14 21:54:06,265 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-14 21:54:06,266 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-14 21:54:06,266 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-14 21:54:06,271 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-14 21:54:06,272 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 09:54:06" (1/1) ... [2020-09-14 21:54:06,276 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24bd55be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 09:54:06, skipping insertion in model container [2020-09-14 21:54:06,277 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 09:54:06" (1/1) ... [2020-09-14 21:54:06,286 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-14 21:54:06,339 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-14 21:54:06,893 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-14 21:54:06,906 INFO L203 MainTranslator]: Completed pre-run [2020-09-14 21:54:06,959 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-14 21:54:07,043 INFO L208 MainTranslator]: Completed translation [2020-09-14 21:54:07,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 09:54:07 WrapperNode [2020-09-14 21:54:07,044 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-14 21:54:07,045 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-14 21:54:07,045 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-14 21:54:07,046 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-14 21:54:07,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 09:54:07" (1/1) ... [2020-09-14 21:54:07,077 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 09:54:07" (1/1) ... [2020-09-14 21:54:07,104 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-14 21:54:07,105 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-14 21:54:07,105 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-14 21:54:07,105 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-14 21:54:07,117 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 09:54:07" (1/1) ... [2020-09-14 21:54:07,117 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 09:54:07" (1/1) ... [2020-09-14 21:54:07,121 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 09:54:07" (1/1) ... [2020-09-14 21:54:07,121 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 09:54:07" (1/1) ... [2020-09-14 21:54:07,129 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 09:54:07" (1/1) ... [2020-09-14 21:54:07,132 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 09:54:07" (1/1) ... [2020-09-14 21:54:07,134 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 09:54:07" (1/1) ... [2020-09-14 21:54:07,138 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-14 21:54:07,138 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-14 21:54:07,139 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-14 21:54:07,139 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-14 21:54:07,140 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 09:54:07" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-14 21:54:07,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-14 21:54:07,232 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-14 21:54:07,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-14 21:54:07,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-14 21:54:07,233 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-14 21:54:07,233 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-14 21:54:07,234 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-14 21:54:07,234 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-14 21:54:07,235 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-14 21:54:07,235 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-14 21:54:07,235 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-14 21:54:07,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-14 21:54:07,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-14 21:54:07,238 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-14 21:54:07,660 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-14 21:54:07,661 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-14 21:54:07,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 09:54:07 BoogieIcfgContainer [2020-09-14 21:54:07,666 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-14 21:54:07,668 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-14 21:54:07,668 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-14 21:54:07,672 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-14 21:54:07,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.09 09:54:06" (1/3) ... [2020-09-14 21:54:07,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@440f5874 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 09:54:07, skipping insertion in model container [2020-09-14 21:54:07,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 09:54:07" (2/3) ... [2020-09-14 21:54:07,674 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@440f5874 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 09:54:07, skipping insertion in model container [2020-09-14 21:54:07,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 09:54:07" (3/3) ... [2020-09-14 21:54:07,676 INFO L109 eAbstractionObserver]: Analyzing ICFG safe003_tso.oepc.i [2020-09-14 21:54:07,689 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-14 21:54:07,689 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-14 21:54:07,700 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-14 21:54:07,701 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-14 21:54:07,733 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 21:54:07,733 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 21:54:07,733 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 21:54:07,734 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 21:54:07,734 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 21:54:07,734 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 21:54:07,735 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 21:54:07,735 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 21:54:07,736 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 21:54:07,736 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 21:54:07,736 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 21:54:07,736 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 21:54:07,737 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 21:54:07,737 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 21:54:07,737 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 21:54:07,738 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 21:54:07,738 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 21:54:07,738 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 21:54:07,743 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 21:54:07,743 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 21:54:07,744 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 21:54:07,744 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 21:54:07,755 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 21:54:07,755 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 21:54:07,755 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 21:54:07,756 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 21:54:07,759 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 21:54:07,760 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 21:54:07,760 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 21:54:07,760 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 21:54:07,784 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-14 21:54:07,807 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-14 21:54:07,808 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-14 21:54:07,808 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-14 21:54:07,808 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-14 21:54:07,808 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-14 21:54:07,809 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-14 21:54:07,809 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-14 21:54:07,809 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-14 21:54:07,828 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-09-14 21:54:07,831 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-09-14 21:54:07,884 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-09-14 21:54:07,885 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-14 21:54:07,891 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 46 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-14 21:54:07,895 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-09-14 21:54:07,916 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-09-14 21:54:07,917 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-14 21:54:07,917 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 46 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-14 21:54:07,920 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-09-14 21:54:07,921 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-14 21:54:09,849 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2700 [2020-09-14 21:54:09,850 INFO L214 etLargeBlockEncoding]: Total number of compositions: 59 [2020-09-14 21:54:09,854 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-09-14 21:54:09,883 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-09-14 21:54:09,885 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-09-14 21:54:09,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-14 21:54:09,896 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 21:54:09,897 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 21:54:09,897 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 21:54:09,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 21:54:09,905 INFO L82 PathProgramCache]: Analyzing trace with hash -1011733384, now seen corresponding path program 1 times [2020-09-14 21:54:09,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 21:54:09,919 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309002190] [2020-09-14 21:54:09,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 21:54:10,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 21:54:10,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 21:54:10,183 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309002190] [2020-09-14 21:54:10,184 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 21:54:10,184 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-14 21:54:10,185 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763459715] [2020-09-14 21:54:10,191 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-14 21:54:10,192 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 21:54:10,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-14 21:54:10,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-14 21:54:10,210 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-09-14 21:54:10,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 21:54:10,307 INFO L93 Difference]: Finished difference Result 290 states and 834 transitions. [2020-09-14 21:54:10,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-14 21:54:10,311 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-09-14 21:54:10,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 21:54:10,343 INFO L225 Difference]: With dead ends: 290 [2020-09-14 21:54:10,343 INFO L226 Difference]: Without dead ends: 226 [2020-09-14 21:54:10,345 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-14 21:54:10,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-09-14 21:54:10,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-09-14 21:54:10,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-09-14 21:54:10,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 626 transitions. [2020-09-14 21:54:10,430 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 626 transitions. Word has length 8 [2020-09-14 21:54:10,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 21:54:10,432 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 626 transitions. [2020-09-14 21:54:10,432 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-14 21:54:10,432 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 626 transitions. [2020-09-14 21:54:10,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-14 21:54:10,434 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 21:54:10,434 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 21:54:10,434 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-14 21:54:10,435 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 21:54:10,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 21:54:10,435 INFO L82 PathProgramCache]: Analyzing trace with hash -1035713695, now seen corresponding path program 1 times [2020-09-14 21:54:10,435 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 21:54:10,436 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586224285] [2020-09-14 21:54:10,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 21:54:10,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 21:54:10,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 21:54:10,525 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586224285] [2020-09-14 21:54:10,525 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 21:54:10,525 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-14 21:54:10,526 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147331751] [2020-09-14 21:54:10,528 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-14 21:54:10,528 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 21:54:10,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-14 21:54:10,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-14 21:54:10,529 INFO L87 Difference]: Start difference. First operand 226 states and 626 transitions. Second operand 3 states. [2020-09-14 21:54:10,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 21:54:10,539 INFO L93 Difference]: Finished difference Result 214 states and 585 transitions. [2020-09-14 21:54:10,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-14 21:54:10,540 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-09-14 21:54:10,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 21:54:10,543 INFO L225 Difference]: With dead ends: 214 [2020-09-14 21:54:10,543 INFO L226 Difference]: Without dead ends: 214 [2020-09-14 21:54:10,544 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-14 21:54:10,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2020-09-14 21:54:10,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2020-09-14 21:54:10,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-09-14 21:54:10,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 585 transitions. [2020-09-14 21:54:10,564 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 585 transitions. Word has length 9 [2020-09-14 21:54:10,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 21:54:10,564 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 585 transitions. [2020-09-14 21:54:10,564 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-14 21:54:10,564 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 585 transitions. [2020-09-14 21:54:10,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-14 21:54:10,569 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 21:54:10,569 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 21:54:10,570 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-14 21:54:10,570 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 21:54:10,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 21:54:10,570 INFO L82 PathProgramCache]: Analyzing trace with hash -2042509488, now seen corresponding path program 1 times [2020-09-14 21:54:10,571 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 21:54:10,573 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116280158] [2020-09-14 21:54:10,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 21:54:10,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 21:54:10,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 21:54:10,688 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116280158] [2020-09-14 21:54:10,688 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 21:54:10,688 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-14 21:54:10,689 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706389992] [2020-09-14 21:54:10,689 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-14 21:54:10,689 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 21:54:10,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-14 21:54:10,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-14 21:54:10,690 INFO L87 Difference]: Start difference. First operand 214 states and 585 transitions. Second operand 4 states. [2020-09-14 21:54:10,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 21:54:10,718 INFO L93 Difference]: Finished difference Result 254 states and 660 transitions. [2020-09-14 21:54:10,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-14 21:54:10,718 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-09-14 21:54:10,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 21:54:10,720 INFO L225 Difference]: With dead ends: 254 [2020-09-14 21:54:10,720 INFO L226 Difference]: Without dead ends: 134 [2020-09-14 21:54:10,721 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-14 21:54:10,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-09-14 21:54:10,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2020-09-14 21:54:10,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-09-14 21:54:10,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 326 transitions. [2020-09-14 21:54:10,731 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 326 transitions. Word has length 10 [2020-09-14 21:54:10,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 21:54:10,731 INFO L479 AbstractCegarLoop]: Abstraction has 134 states and 326 transitions. [2020-09-14 21:54:10,731 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-14 21:54:10,731 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 326 transitions. [2020-09-14 21:54:10,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-14 21:54:10,732 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 21:54:10,733 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 21:54:10,733 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-14 21:54:10,733 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 21:54:10,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 21:54:10,734 INFO L82 PathProgramCache]: Analyzing trace with hash 1680323254, now seen corresponding path program 1 times [2020-09-14 21:54:10,734 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 21:54:10,734 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668568086] [2020-09-14 21:54:10,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 21:54:10,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 21:54:10,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 21:54:10,804 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668568086] [2020-09-14 21:54:10,805 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 21:54:10,805 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-14 21:54:10,805 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261161997] [2020-09-14 21:54:10,806 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-14 21:54:10,806 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 21:54:10,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-14 21:54:10,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-14 21:54:10,807 INFO L87 Difference]: Start difference. First operand 134 states and 326 transitions. Second operand 3 states. [2020-09-14 21:54:10,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 21:54:10,812 INFO L93 Difference]: Finished difference Result 128 states and 307 transitions. [2020-09-14 21:54:10,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-14 21:54:10,813 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-09-14 21:54:10,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 21:54:10,815 INFO L225 Difference]: With dead ends: 128 [2020-09-14 21:54:10,815 INFO L226 Difference]: Without dead ends: 128 [2020-09-14 21:54:10,815 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-14 21:54:10,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-09-14 21:54:10,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2020-09-14 21:54:10,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-09-14 21:54:10,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 307 transitions. [2020-09-14 21:54:10,824 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 307 transitions. Word has length 11 [2020-09-14 21:54:10,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 21:54:10,824 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 307 transitions. [2020-09-14 21:54:10,824 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-14 21:54:10,825 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 307 transitions. [2020-09-14 21:54:10,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-14 21:54:10,826 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 21:54:10,826 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 21:54:10,826 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-14 21:54:10,826 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 21:54:10,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 21:54:10,827 INFO L82 PathProgramCache]: Analyzing trace with hash 550400496, now seen corresponding path program 1 times [2020-09-14 21:54:10,827 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 21:54:10,827 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862178512] [2020-09-14 21:54:10,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 21:54:10,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 21:54:10,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 21:54:10,944 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862178512] [2020-09-14 21:54:10,945 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 21:54:10,945 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-14 21:54:10,945 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103967455] [2020-09-14 21:54:10,945 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-14 21:54:10,946 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 21:54:10,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-14 21:54:10,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-14 21:54:10,946 INFO L87 Difference]: Start difference. First operand 128 states and 307 transitions. Second operand 3 states. [2020-09-14 21:54:10,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 21:54:10,955 INFO L93 Difference]: Finished difference Result 122 states and 288 transitions. [2020-09-14 21:54:10,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-14 21:54:10,956 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-09-14 21:54:10,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 21:54:10,957 INFO L225 Difference]: With dead ends: 122 [2020-09-14 21:54:10,957 INFO L226 Difference]: Without dead ends: 122 [2020-09-14 21:54:10,958 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-14 21:54:10,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2020-09-14 21:54:10,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2020-09-14 21:54:10,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-09-14 21:54:10,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 288 transitions. [2020-09-14 21:54:10,968 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 288 transitions. Word has length 12 [2020-09-14 21:54:10,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 21:54:10,969 INFO L479 AbstractCegarLoop]: Abstraction has 122 states and 288 transitions. [2020-09-14 21:54:10,969 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-14 21:54:10,969 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 288 transitions. [2020-09-14 21:54:10,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-14 21:54:10,970 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 21:54:10,971 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 21:54:10,971 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-14 21:54:10,971 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 21:54:10,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 21:54:10,971 INFO L82 PathProgramCache]: Analyzing trace with hash -117499308, now seen corresponding path program 1 times [2020-09-14 21:54:10,972 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 21:54:10,972 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81425307] [2020-09-14 21:54:10,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 21:54:10,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 21:54:11,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 21:54:11,033 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81425307] [2020-09-14 21:54:11,033 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 21:54:11,034 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-14 21:54:11,034 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534934191] [2020-09-14 21:54:11,034 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-14 21:54:11,034 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 21:54:11,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-14 21:54:11,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-14 21:54:11,035 INFO L87 Difference]: Start difference. First operand 122 states and 288 transitions. Second operand 4 states. [2020-09-14 21:54:11,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 21:54:11,063 INFO L93 Difference]: Finished difference Result 184 states and 429 transitions. [2020-09-14 21:54:11,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-14 21:54:11,064 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-09-14 21:54:11,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 21:54:11,065 INFO L225 Difference]: With dead ends: 184 [2020-09-14 21:54:11,065 INFO L226 Difference]: Without dead ends: 130 [2020-09-14 21:54:11,066 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-14 21:54:11,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-09-14 21:54:11,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 122. [2020-09-14 21:54:11,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-09-14 21:54:11,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 278 transitions. [2020-09-14 21:54:11,073 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 278 transitions. Word has length 13 [2020-09-14 21:54:11,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 21:54:11,073 INFO L479 AbstractCegarLoop]: Abstraction has 122 states and 278 transitions. [2020-09-14 21:54:11,073 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-14 21:54:11,073 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 278 transitions. [2020-09-14 21:54:11,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-14 21:54:11,075 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 21:54:11,075 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 21:54:11,075 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-14 21:54:11,075 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 21:54:11,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 21:54:11,076 INFO L82 PathProgramCache]: Analyzing trace with hash -1997055762, now seen corresponding path program 2 times [2020-09-14 21:54:11,076 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 21:54:11,076 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827557504] [2020-09-14 21:54:11,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 21:54:11,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 21:54:11,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 21:54:11,131 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827557504] [2020-09-14 21:54:11,131 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 21:54:11,131 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-14 21:54:11,131 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013516380] [2020-09-14 21:54:11,132 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-14 21:54:11,132 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 21:54:11,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-14 21:54:11,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-14 21:54:11,132 INFO L87 Difference]: Start difference. First operand 122 states and 278 transitions. Second operand 4 states. [2020-09-14 21:54:11,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 21:54:11,162 INFO L93 Difference]: Finished difference Result 142 states and 318 transitions. [2020-09-14 21:54:11,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-14 21:54:11,163 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-09-14 21:54:11,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 21:54:11,164 INFO L225 Difference]: With dead ends: 142 [2020-09-14 21:54:11,164 INFO L226 Difference]: Without dead ends: 82 [2020-09-14 21:54:11,165 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-14 21:54:11,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-09-14 21:54:11,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2020-09-14 21:54:11,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-09-14 21:54:11,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 174 transitions. [2020-09-14 21:54:11,169 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 174 transitions. Word has length 13 [2020-09-14 21:54:11,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 21:54:11,169 INFO L479 AbstractCegarLoop]: Abstraction has 82 states and 174 transitions. [2020-09-14 21:54:11,169 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-14 21:54:11,170 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 174 transitions. [2020-09-14 21:54:11,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-14 21:54:11,171 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 21:54:11,171 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 21:54:11,171 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-14 21:54:11,171 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 21:54:11,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 21:54:11,172 INFO L82 PathProgramCache]: Analyzing trace with hash 616515302, now seen corresponding path program 1 times [2020-09-14 21:54:11,172 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 21:54:11,172 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983984208] [2020-09-14 21:54:11,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 21:54:11,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 21:54:11,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 21:54:11,212 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983984208] [2020-09-14 21:54:11,213 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 21:54:11,213 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-14 21:54:11,213 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10580007] [2020-09-14 21:54:11,214 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-14 21:54:11,214 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 21:54:11,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-14 21:54:11,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-14 21:54:11,215 INFO L87 Difference]: Start difference. First operand 82 states and 174 transitions. Second operand 3 states. [2020-09-14 21:54:11,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 21:54:11,223 INFO L93 Difference]: Finished difference Result 74 states and 154 transitions. [2020-09-14 21:54:11,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-14 21:54:11,224 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-09-14 21:54:11,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 21:54:11,224 INFO L225 Difference]: With dead ends: 74 [2020-09-14 21:54:11,224 INFO L226 Difference]: Without dead ends: 0 [2020-09-14 21:54:11,225 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-14 21:54:11,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-14 21:54:11,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-14 21:54:11,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-14 21:54:11,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-14 21:54:11,226 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-09-14 21:54:11,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 21:54:11,226 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-14 21:54:11,226 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-14 21:54:11,226 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-14 21:54:11,226 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-14 21:54:11,227 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-14 21:54:11,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.09 09:54:11 BasicIcfg [2020-09-14 21:54:11,232 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-14 21:54:11,235 INFO L168 Benchmark]: Toolchain (without parser) took 4972.20 ms. Allocated memory was 140.5 MB in the beginning and 248.5 MB in the end (delta: 108.0 MB). Free memory was 102.8 MB in the beginning and 173.8 MB in the end (delta: -71.0 MB). Peak memory consumption was 37.1 MB. Max. memory is 7.1 GB. [2020-09-14 21:54:11,236 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-14 21:54:11,237 INFO L168 Benchmark]: CACSL2BoogieTranslator took 778.84 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 102.1 MB in the beginning and 161.8 MB in the end (delta: -59.7 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2020-09-14 21:54:11,238 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.28 ms. Allocated memory is still 203.9 MB. Free memory was 161.8 MB in the beginning and 159.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-14 21:54:11,239 INFO L168 Benchmark]: Boogie Preprocessor took 33.32 ms. Allocated memory is still 203.9 MB. Free memory was 159.8 MB in the beginning and 158.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-09-14 21:54:11,240 INFO L168 Benchmark]: RCFGBuilder took 528.07 ms. Allocated memory is still 203.9 MB. Free memory was 157.8 MB in the beginning and 135.9 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. [2020-09-14 21:54:11,240 INFO L168 Benchmark]: TraceAbstraction took 3564.02 ms. Allocated memory was 203.9 MB in the beginning and 248.5 MB in the end (delta: 44.6 MB). Free memory was 135.3 MB in the beginning and 173.8 MB in the end (delta: -38.5 MB). Peak memory consumption was 6.1 MB. Max. memory is 7.1 GB. [2020-09-14 21:54:11,245 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 778.84 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 102.1 MB in the beginning and 161.8 MB in the end (delta: -59.7 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 59.28 ms. Allocated memory is still 203.9 MB. Free memory was 161.8 MB in the beginning and 159.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 33.32 ms. Allocated memory is still 203.9 MB. Free memory was 159.8 MB in the beginning and 158.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 528.07 ms. Allocated memory is still 203.9 MB. Free memory was 157.8 MB in the beginning and 135.9 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3564.02 ms. Allocated memory was 203.9 MB in the beginning and 248.5 MB in the end (delta: 44.6 MB). Free memory was 135.3 MB in the beginning and 173.8 MB in the end (delta: -38.5 MB). Peak memory consumption was 6.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.0s, 78 ProgramPointsBefore, 31 ProgramPointsAfterwards, 70 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 667 VarBasedMoverChecksPositive, 35 VarBasedMoverChecksNegative, 11 SemBasedMoverChecksPositive, 35 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 2700 CheckedPairsTotal, 59 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: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 144 SDtfs, 81 SDslu, 119 SDs, 0 SdLazy, 46 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s 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, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 2334 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...