/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin001_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-bf4350c [2020-09-17 01:35:28,201 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-17 01:35:28,205 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-17 01:35:28,230 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-17 01:35:28,231 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-17 01:35:28,232 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-17 01:35:28,233 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-17 01:35:28,235 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-17 01:35:28,236 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-17 01:35:28,237 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-17 01:35:28,238 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-17 01:35:28,240 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-17 01:35:28,240 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-17 01:35:28,241 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-17 01:35:28,242 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-17 01:35:28,243 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-17 01:35:28,244 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-17 01:35:28,245 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-17 01:35:28,247 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-17 01:35:28,249 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-17 01:35:28,251 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-17 01:35:28,252 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-17 01:35:28,254 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-17 01:35:28,254 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-17 01:35:28,257 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-17 01:35:28,257 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-17 01:35:28,258 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-17 01:35:28,259 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-17 01:35:28,259 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-17 01:35:28,260 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-17 01:35:28,260 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-17 01:35:28,262 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-17 01:35:28,262 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-17 01:35:28,263 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-17 01:35:28,264 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-17 01:35:28,265 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-17 01:35:28,265 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-17 01:35:28,266 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-17 01:35:28,266 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-17 01:35:28,267 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-17 01:35:28,268 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-17 01:35:28,269 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 01:35:28,294 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-17 01:35:28,294 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-17 01:35:28,296 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-17 01:35:28,296 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-17 01:35:28,296 INFO L138 SettingsManager]: * Use SBE=true [2020-09-17 01:35:28,296 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-17 01:35:28,296 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-17 01:35:28,297 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-17 01:35:28,297 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-17 01:35:28,297 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-17 01:35:28,297 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-17 01:35:28,297 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-17 01:35:28,298 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-17 01:35:28,298 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-17 01:35:28,298 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-17 01:35:28,298 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-17 01:35:28,298 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-17 01:35:28,299 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-17 01:35:28,299 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-17 01:35:28,299 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-17 01:35:28,299 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-17 01:35:28,299 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-17 01:35:28,300 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-17 01:35:28,300 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-17 01:35:28,300 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-17 01:35:28,300 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-17 01:35:28,301 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-17 01:35:28,301 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-17 01:35:28,301 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-17 01:35:28,301 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-17 01:35:28,729 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-17 01:35:28,761 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-17 01:35:28,765 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-17 01:35:28,767 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-17 01:35:28,768 INFO L275 PluginConnector]: CDTParser initialized [2020-09-17 01:35:28,769 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin001_tso.oepc.i [2020-09-17 01:35:28,870 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f89c5654/421c917dc99b4b9e8eb6a18e9f33f070/FLAGb6edd5731 [2020-09-17 01:35:29,514 INFO L306 CDTParser]: Found 1 translation units. [2020-09-17 01:35:29,515 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin001_tso.oepc.i [2020-09-17 01:35:29,531 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f89c5654/421c917dc99b4b9e8eb6a18e9f33f070/FLAGb6edd5731 [2020-09-17 01:35:29,794 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f89c5654/421c917dc99b4b9e8eb6a18e9f33f070 [2020-09-17 01:35:29,807 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-17 01:35:29,812 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-17 01:35:29,813 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-17 01:35:29,814 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-17 01:35:29,818 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-17 01:35:29,819 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 01:35:29" (1/1) ... [2020-09-17 01:35:29,823 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a023d37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:35:29, skipping insertion in model container [2020-09-17 01:35:29,824 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 01:35:29" (1/1) ... [2020-09-17 01:35:29,833 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-17 01:35:29,883 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-17 01:35:30,469 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-17 01:35:30,488 INFO L203 MainTranslator]: Completed pre-run [2020-09-17 01:35:30,545 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-17 01:35:30,629 INFO L208 MainTranslator]: Completed translation [2020-09-17 01:35:30,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:35:30 WrapperNode [2020-09-17 01:35:30,630 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-17 01:35:30,631 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-17 01:35:30,631 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-17 01:35:30,631 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-17 01:35:30,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:35:30" (1/1) ... [2020-09-17 01:35:30,663 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:35:30" (1/1) ... [2020-09-17 01:35:30,692 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-17 01:35:30,692 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-17 01:35:30,692 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-17 01:35:30,692 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-17 01:35:30,702 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:35:30" (1/1) ... [2020-09-17 01:35:30,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:35:30" (1/1) ... [2020-09-17 01:35:30,711 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:35:30" (1/1) ... [2020-09-17 01:35:30,712 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:35:30" (1/1) ... [2020-09-17 01:35:30,719 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:35:30" (1/1) ... [2020-09-17 01:35:30,722 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:35:30" (1/1) ... [2020-09-17 01:35:30,724 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:35:30" (1/1) ... [2020-09-17 01:35:30,728 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-17 01:35:30,728 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-17 01:35:30,729 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-17 01:35:30,729 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-17 01:35:30,730 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:35:30" (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 01:35:30,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-17 01:35:30,806 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-17 01:35:30,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-17 01:35:30,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-17 01:35:30,807 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-17 01:35:30,807 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-17 01:35:30,807 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-17 01:35:30,807 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-17 01:35:30,808 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-17 01:35:30,808 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-17 01:35:30,808 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-17 01:35:30,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-17 01:35:30,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-17 01:35:30,812 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 01:35:31,183 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-17 01:35:31,183 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-17 01:35:31,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 01:35:31 BoogieIcfgContainer [2020-09-17 01:35:31,189 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-17 01:35:31,190 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-17 01:35:31,190 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-17 01:35:31,194 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-17 01:35:31,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.09 01:35:29" (1/3) ... [2020-09-17 01:35:31,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fe024d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.09 01:35:31, skipping insertion in model container [2020-09-17 01:35:31,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:35:30" (2/3) ... [2020-09-17 01:35:31,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fe024d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.09 01:35:31, skipping insertion in model container [2020-09-17 01:35:31,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 01:35:31" (3/3) ... [2020-09-17 01:35:31,199 INFO L109 eAbstractionObserver]: Analyzing ICFG thin001_tso.oepc.i [2020-09-17 01:35:31,211 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-17 01:35:31,211 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-17 01:35:31,221 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-17 01:35:31,222 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-17 01:35:31,253 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:31,254 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:31,254 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:31,254 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:31,255 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:31,255 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:31,256 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:31,256 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:31,256 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:31,256 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:31,257 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:31,257 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:31,258 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:31,258 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:31,258 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:31,258 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:31,259 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:31,259 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:31,264 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:31,264 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:31,264 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:31,265 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:31,280 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:31,281 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:31,281 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:31,281 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:31,284 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:31,284 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:31,284 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:31,285 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:31,312 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-17 01:35:31,339 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-17 01:35:31,339 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-17 01:35:31,339 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-17 01:35:31,340 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-17 01:35:31,340 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-17 01:35:31,340 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-17 01:35:31,340 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-17 01:35:31,340 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-17 01:35:31,360 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 71 transitions, 157 flow [2020-09-17 01:35:31,363 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-09-17 01:35:31,417 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-09-17 01:35:31,417 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-17 01:35:31,427 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-17 01:35:31,433 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-09-17 01:35:31,485 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-09-17 01:35:31,486 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-17 01:35:31,486 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-17 01:35:31,489 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-09-17 01:35:31,491 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-17 01:35:33,118 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-09-17 01:35:33,225 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2463 [2020-09-17 01:35:33,225 INFO L214 etLargeBlockEncoding]: Total number of compositions: 57 [2020-09-17 01:35:33,230 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-09-17 01:35:33,266 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-09-17 01:35:33,268 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-09-17 01:35:33,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-17 01:35:33,283 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:35:33,284 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:35:33,284 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:35:33,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:35:33,294 INFO L82 PathProgramCache]: Analyzing trace with hash -691335731, now seen corresponding path program 1 times [2020-09-17 01:35:33,306 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:35:33,306 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016535423] [2020-09-17 01:35:33,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:35:33,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:35:33,510 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 01:35:33,511 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016535423] [2020-09-17 01:35:33,512 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:35:33,512 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-17 01:35:33,513 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700464593] [2020-09-17 01:35:33,519 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-17 01:35:33,519 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:35:33,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-17 01:35:33,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-17 01:35:33,541 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-09-17 01:35:33,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:35:33,581 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-09-17 01:35:33,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-17 01:35:33,583 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-09-17 01:35:33,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:35:33,604 INFO L225 Difference]: With dead ends: 362 [2020-09-17 01:35:33,604 INFO L226 Difference]: Without dead ends: 298 [2020-09-17 01:35:33,606 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-17 01:35:33,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-09-17 01:35:33,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-09-17 01:35:33,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-09-17 01:35:33,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-09-17 01:35:33,691 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-09-17 01:35:33,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:35:33,692 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-09-17 01:35:33,692 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-17 01:35:33,692 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-09-17 01:35:33,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-17 01:35:33,694 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:35:33,694 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:35:33,694 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-17 01:35:33,695 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:35:33,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:35:33,695 INFO L82 PathProgramCache]: Analyzing trace with hash 43425274, now seen corresponding path program 1 times [2020-09-17 01:35:33,695 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:35:33,696 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101215569] [2020-09-17 01:35:33,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:35:33,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:35:33,858 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 01:35:33,859 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101215569] [2020-09-17 01:35:33,859 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:35:33,859 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 01:35:33,860 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176397552] [2020-09-17 01:35:33,861 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-17 01:35:33,862 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:35:33,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-17 01:35:33,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-17 01:35:33,862 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 5 states. [2020-09-17 01:35:33,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:35:33,965 INFO L93 Difference]: Finished difference Result 330 states and 912 transitions. [2020-09-17 01:35:33,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-17 01:35:33,966 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-09-17 01:35:33,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:35:33,969 INFO L225 Difference]: With dead ends: 330 [2020-09-17 01:35:33,970 INFO L226 Difference]: Without dead ends: 266 [2020-09-17 01:35:33,971 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-17 01:35:33,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-09-17 01:35:33,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-09-17 01:35:33,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-09-17 01:35:33,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 752 transitions. [2020-09-17 01:35:33,995 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 752 transitions. Word has length 9 [2020-09-17 01:35:33,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:35:33,995 INFO L479 AbstractCegarLoop]: Abstraction has 266 states and 752 transitions. [2020-09-17 01:35:33,995 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-17 01:35:33,995 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 752 transitions. [2020-09-17 01:35:33,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-17 01:35:33,997 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:35:33,997 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:35:33,997 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-17 01:35:33,998 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:35:33,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:35:33,998 INFO L82 PathProgramCache]: Analyzing trace with hash 1226466257, now seen corresponding path program 1 times [2020-09-17 01:35:33,998 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:35:33,999 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470717493] [2020-09-17 01:35:33,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:35:34,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:35:34,164 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 01:35:34,164 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470717493] [2020-09-17 01:35:34,164 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:35:34,165 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-17 01:35:34,165 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367346238] [2020-09-17 01:35:34,165 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-17 01:35:34,165 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:35:34,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-17 01:35:34,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-17 01:35:34,166 INFO L87 Difference]: Start difference. First operand 266 states and 752 transitions. Second operand 6 states. [2020-09-17 01:35:34,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:35:34,279 INFO L93 Difference]: Finished difference Result 350 states and 940 transitions. [2020-09-17 01:35:34,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-17 01:35:34,280 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-09-17 01:35:34,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:35:34,282 INFO L225 Difference]: With dead ends: 350 [2020-09-17 01:35:34,282 INFO L226 Difference]: Without dead ends: 182 [2020-09-17 01:35:34,282 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-09-17 01:35:34,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-09-17 01:35:34,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2020-09-17 01:35:34,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-09-17 01:35:34,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 458 transitions. [2020-09-17 01:35:34,296 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 458 transitions. Word has length 10 [2020-09-17 01:35:34,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:35:34,296 INFO L479 AbstractCegarLoop]: Abstraction has 182 states and 458 transitions. [2020-09-17 01:35:34,296 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-17 01:35:34,296 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 458 transitions. [2020-09-17 01:35:34,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-17 01:35:34,298 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:35:34,298 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:35:34,298 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-17 01:35:34,298 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:35:34,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:35:34,299 INFO L82 PathProgramCache]: Analyzing trace with hash 1670897012, now seen corresponding path program 1 times [2020-09-17 01:35:34,299 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:35:34,299 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095332372] [2020-09-17 01:35:34,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:35:34,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:35:34,380 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 01:35:34,380 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095332372] [2020-09-17 01:35:34,380 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:35:34,381 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 01:35:34,381 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293069893] [2020-09-17 01:35:34,381 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-17 01:35:34,382 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:35:34,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-17 01:35:34,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-17 01:35:34,382 INFO L87 Difference]: Start difference. First operand 182 states and 458 transitions. Second operand 5 states. [2020-09-17 01:35:34,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:35:34,459 INFO L93 Difference]: Finished difference Result 233 states and 559 transitions. [2020-09-17 01:35:34,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-17 01:35:34,460 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-09-17 01:35:34,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:35:34,461 INFO L225 Difference]: With dead ends: 233 [2020-09-17 01:35:34,461 INFO L226 Difference]: Without dead ends: 92 [2020-09-17 01:35:34,461 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-17 01:35:34,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-09-17 01:35:34,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2020-09-17 01:35:34,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-09-17 01:35:34,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 210 transitions. [2020-09-17 01:35:34,467 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 210 transitions. Word has length 12 [2020-09-17 01:35:34,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:35:34,468 INFO L479 AbstractCegarLoop]: Abstraction has 92 states and 210 transitions. [2020-09-17 01:35:34,468 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-17 01:35:34,468 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 210 transitions. [2020-09-17 01:35:34,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-17 01:35:34,469 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:35:34,469 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:35:34,470 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-17 01:35:34,470 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:35:34,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:35:34,470 INFO L82 PathProgramCache]: Analyzing trace with hash -1277780743, now seen corresponding path program 1 times [2020-09-17 01:35:34,470 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:35:34,471 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354298009] [2020-09-17 01:35:34,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:35:34,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:35:34,547 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 01:35:34,547 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354298009] [2020-09-17 01:35:34,547 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:35:34,548 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 01:35:34,548 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426225247] [2020-09-17 01:35:34,548 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-17 01:35:34,549 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:35:34,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-17 01:35:34,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-17 01:35:34,549 INFO L87 Difference]: Start difference. First operand 92 states and 210 transitions. Second operand 5 states. [2020-09-17 01:35:34,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:35:34,589 INFO L93 Difference]: Finished difference Result 77 states and 170 transitions. [2020-09-17 01:35:34,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-17 01:35:34,590 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-09-17 01:35:34,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:35:34,591 INFO L225 Difference]: With dead ends: 77 [2020-09-17 01:35:34,591 INFO L226 Difference]: Without dead ends: 0 [2020-09-17 01:35:34,591 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-17 01:35:34,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-17 01:35:34,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-17 01:35:34,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-17 01:35:34,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-17 01:35:34,592 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-09-17 01:35:34,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:35:34,593 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-17 01:35:34,593 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-17 01:35:34,593 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-17 01:35:34,593 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-17 01:35:34,593 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-17 01:35:34,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.09 01:35:34 BasicIcfg [2020-09-17 01:35:34,598 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-17 01:35:34,601 INFO L168 Benchmark]: Toolchain (without parser) took 4791.84 ms. Allocated memory was 140.0 MB in the beginning and 246.4 MB in the end (delta: 106.4 MB). Free memory was 101.3 MB in the beginning and 192.3 MB in the end (delta: -91.0 MB). Peak memory consumption was 15.4 MB. Max. memory is 7.1 GB. [2020-09-17 01:35:34,602 INFO L168 Benchmark]: CDTParser took 1.72 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-09-17 01:35:34,603 INFO L168 Benchmark]: CACSL2BoogieTranslator took 817.11 ms. Allocated memory was 140.0 MB in the beginning and 205.0 MB in the end (delta: 65.0 MB). Free memory was 100.6 MB in the beginning and 162.3 MB in the end (delta: -61.7 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. [2020-09-17 01:35:34,604 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.11 ms. Allocated memory is still 205.0 MB. Free memory was 162.3 MB in the beginning and 160.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-17 01:35:34,605 INFO L168 Benchmark]: Boogie Preprocessor took 35.92 ms. Allocated memory is still 205.0 MB. Free memory was 160.4 MB in the beginning and 158.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-17 01:35:34,605 INFO L168 Benchmark]: RCFGBuilder took 460.47 ms. Allocated memory is still 205.0 MB. Free memory was 158.4 MB in the beginning and 136.4 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2020-09-17 01:35:34,606 INFO L168 Benchmark]: TraceAbstraction took 3408.18 ms. Allocated memory was 205.0 MB in the beginning and 246.4 MB in the end (delta: 41.4 MB). Free memory was 135.8 MB in the beginning and 192.3 MB in the end (delta: -56.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-17 01:35:34,611 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.72 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 817.11 ms. Allocated memory was 140.0 MB in the beginning and 205.0 MB in the end (delta: 65.0 MB). Free memory was 100.6 MB in the beginning and 162.3 MB in the end (delta: -61.7 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 61.11 ms. Allocated memory is still 205.0 MB. Free memory was 162.3 MB in the beginning and 160.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 35.92 ms. Allocated memory is still 205.0 MB. Free memory was 160.4 MB in the beginning and 158.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 460.47 ms. Allocated memory is still 205.0 MB. Free memory was 158.4 MB in the beginning and 136.4 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3408.18 ms. Allocated memory was 205.0 MB in the beginning and 246.4 MB in the end (delta: 41.4 MB). Free memory was 135.8 MB in the beginning and 192.3 MB in the end (delta: -56.6 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.8s, 79 ProgramPointsBefore, 32 ProgramPointsAfterwards, 71 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 688 VarBasedMoverChecksPositive, 31 VarBasedMoverChecksNegative, 17 SemBasedMoverChecksPositive, 29 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 2463 CheckedPairsTotal, 57 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 101 SDtfs, 164 SDslu, 177 SDs, 0 SdLazy, 84 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 2061 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...