/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin001_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-bf4350c [2020-09-17 01:35:05,131 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-17 01:35:05,134 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-17 01:35:05,159 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-17 01:35:05,160 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-17 01:35:05,161 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-17 01:35:05,162 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-17 01:35:05,164 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-17 01:35:05,166 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-17 01:35:05,167 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-17 01:35:05,168 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-17 01:35:05,169 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-17 01:35:05,169 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-17 01:35:05,170 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-17 01:35:05,172 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-17 01:35:05,173 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-17 01:35:05,174 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-17 01:35:05,175 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-17 01:35:05,177 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-17 01:35:05,179 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-17 01:35:05,181 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-17 01:35:05,182 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-17 01:35:05,183 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-17 01:35:05,184 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-17 01:35:05,187 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-17 01:35:05,188 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-17 01:35:05,188 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-17 01:35:05,189 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-17 01:35:05,190 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-17 01:35:05,191 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-17 01:35:05,191 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-17 01:35:05,192 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-17 01:35:05,193 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-17 01:35:05,194 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-17 01:35:05,195 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-17 01:35:05,195 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-17 01:35:05,196 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-17 01:35:05,196 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-17 01:35:05,197 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-17 01:35:05,198 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-17 01:35:05,199 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-17 01:35:05,200 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 01:35:05,225 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-17 01:35:05,226 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-17 01:35:05,227 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-17 01:35:05,227 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-17 01:35:05,227 INFO L138 SettingsManager]: * Use SBE=true [2020-09-17 01:35:05,228 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-17 01:35:05,228 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-17 01:35:05,228 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-17 01:35:05,228 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-17 01:35:05,228 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-17 01:35:05,229 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-17 01:35:05,229 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-17 01:35:05,229 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-17 01:35:05,229 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-17 01:35:05,229 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-17 01:35:05,230 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-17 01:35:05,230 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-17 01:35:05,230 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-17 01:35:05,230 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-17 01:35:05,230 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-17 01:35:05,231 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-17 01:35:05,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-17 01:35:05,231 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-17 01:35:05,231 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-17 01:35:05,231 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-17 01:35:05,232 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-17 01:35:05,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-17 01:35:05,232 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-17 01:35:05,232 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-17 01:35:05,232 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-17 01:35:05,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-17 01:35:05,697 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-17 01:35:05,702 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-17 01:35:05,703 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-17 01:35:05,704 INFO L275 PluginConnector]: CDTParser initialized [2020-09-17 01:35:05,705 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin001_pso.oepc.i [2020-09-17 01:35:05,796 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be7b30756/efb2e26188fe47209ff3402025bfe97b/FLAGb54ab8350 [2020-09-17 01:35:06,441 INFO L306 CDTParser]: Found 1 translation units. [2020-09-17 01:35:06,442 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin001_pso.oepc.i [2020-09-17 01:35:06,470 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be7b30756/efb2e26188fe47209ff3402025bfe97b/FLAGb54ab8350 [2020-09-17 01:35:06,695 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be7b30756/efb2e26188fe47209ff3402025bfe97b [2020-09-17 01:35:06,711 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-17 01:35:06,717 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-17 01:35:06,722 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-17 01:35:06,723 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-17 01:35:06,727 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-17 01:35:06,728 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 01:35:06" (1/1) ... [2020-09-17 01:35:06,732 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a0f7ff4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:35:06, skipping insertion in model container [2020-09-17 01:35:06,732 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 01:35:06" (1/1) ... [2020-09-17 01:35:06,739 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-17 01:35:06,802 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-17 01:35:07,305 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-17 01:35:07,325 INFO L203 MainTranslator]: Completed pre-run [2020-09-17 01:35:07,423 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-17 01:35:07,499 INFO L208 MainTranslator]: Completed translation [2020-09-17 01:35:07,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:35:07 WrapperNode [2020-09-17 01:35:07,500 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-17 01:35:07,501 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-17 01:35:07,501 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-17 01:35:07,501 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-17 01:35:07,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:35:07" (1/1) ... [2020-09-17 01:35:07,532 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:35:07" (1/1) ... [2020-09-17 01:35:07,559 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-17 01:35:07,559 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-17 01:35:07,559 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-17 01:35:07,560 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-17 01:35:07,569 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:35:07" (1/1) ... [2020-09-17 01:35:07,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:35:07" (1/1) ... [2020-09-17 01:35:07,574 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:35:07" (1/1) ... [2020-09-17 01:35:07,574 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:35:07" (1/1) ... [2020-09-17 01:35:07,581 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:35:07" (1/1) ... [2020-09-17 01:35:07,584 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:35:07" (1/1) ... [2020-09-17 01:35:07,586 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:35:07" (1/1) ... [2020-09-17 01:35:07,590 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-17 01:35:07,591 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-17 01:35:07,591 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-17 01:35:07,591 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-17 01:35:07,592 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:35:07" (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 01:35:07,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-17 01:35:07,674 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-17 01:35:07,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-17 01:35:07,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-17 01:35:07,674 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-17 01:35:07,675 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-17 01:35:07,675 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-17 01:35:07,675 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-17 01:35:07,675 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-17 01:35:07,676 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-17 01:35:07,676 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-17 01:35:07,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-17 01:35:07,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-17 01:35:07,679 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 01:35:08,060 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-17 01:35:08,060 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-17 01:35:08,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 01:35:08 BoogieIcfgContainer [2020-09-17 01:35:08,065 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-17 01:35:08,067 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-17 01:35:08,067 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-17 01:35:08,071 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-17 01:35:08,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.09 01:35:06" (1/3) ... [2020-09-17 01:35:08,072 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27d37eb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.09 01:35:08, skipping insertion in model container [2020-09-17 01:35:08,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:35:07" (2/3) ... [2020-09-17 01:35:08,073 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27d37eb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.09 01:35:08, skipping insertion in model container [2020-09-17 01:35:08,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 01:35:08" (3/3) ... [2020-09-17 01:35:08,076 INFO L109 eAbstractionObserver]: Analyzing ICFG thin001_pso.oepc.i [2020-09-17 01:35:08,086 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-17 01:35:08,086 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-17 01:35:08,097 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-17 01:35:08,099 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-17 01:35:08,130 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:08,130 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:08,131 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:08,131 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:08,131 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:08,132 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:08,132 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:08,133 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:08,133 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:08,133 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:08,134 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:08,134 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:08,134 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:08,135 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:08,135 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:08,135 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:08,136 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:08,136 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:08,140 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:08,141 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:08,141 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:08,141 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:08,149 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:08,149 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:08,149 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:08,150 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:08,152 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:08,152 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:08,153 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:08,153 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:35:08,177 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-17 01:35:08,206 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-17 01:35:08,206 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-17 01:35:08,206 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-17 01:35:08,206 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-17 01:35:08,207 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-17 01:35:08,207 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-17 01:35:08,207 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-17 01:35:08,207 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-17 01:35:08,226 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 71 transitions, 157 flow [2020-09-17 01:35:08,229 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-09-17 01:35:08,280 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-09-17 01:35:08,280 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-17 01:35:08,286 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 01:35:08,289 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-09-17 01:35:08,310 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-09-17 01:35:08,310 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-17 01:35:08,311 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 01:35:08,313 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-09-17 01:35:08,314 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-17 01:35:09,654 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-09-17 01:35:09,759 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2463 [2020-09-17 01:35:09,760 INFO L214 etLargeBlockEncoding]: Total number of compositions: 57 [2020-09-17 01:35:09,764 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-09-17 01:35:09,794 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-09-17 01:35:09,797 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-09-17 01:35:09,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-17 01:35:09,806 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:35:09,807 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:35:09,808 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:35:09,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:35:09,815 INFO L82 PathProgramCache]: Analyzing trace with hash -691335731, now seen corresponding path program 1 times [2020-09-17 01:35:09,827 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:35:09,828 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415744444] [2020-09-17 01:35:09,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:35:09,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:35:10,027 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 01:35:10,028 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415744444] [2020-09-17 01:35:10,029 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:35:10,029 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-17 01:35:10,030 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584059849] [2020-09-17 01:35:10,036 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-17 01:35:10,036 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:35:10,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-17 01:35:10,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-17 01:35:10,056 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-09-17 01:35:10,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:35:10,097 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-09-17 01:35:10,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-17 01:35:10,099 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-09-17 01:35:10,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:35:10,119 INFO L225 Difference]: With dead ends: 362 [2020-09-17 01:35:10,120 INFO L226 Difference]: Without dead ends: 298 [2020-09-17 01:35:10,122 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 01:35:10,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-09-17 01:35:10,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-09-17 01:35:10,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-09-17 01:35:10,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-09-17 01:35:10,204 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-09-17 01:35:10,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:35:10,206 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-09-17 01:35:10,206 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-17 01:35:10,206 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-09-17 01:35:10,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-17 01:35:10,207 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:35:10,208 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:35:10,208 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-17 01:35:10,208 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:35:10,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:35:10,209 INFO L82 PathProgramCache]: Analyzing trace with hash 43425274, now seen corresponding path program 1 times [2020-09-17 01:35:10,209 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:35:10,209 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083843940] [2020-09-17 01:35:10,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:35:10,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:35:10,417 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 01:35:10,418 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083843940] [2020-09-17 01:35:10,419 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:35:10,420 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 01:35:10,420 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912137121] [2020-09-17 01:35:10,423 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-17 01:35:10,423 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:35:10,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-17 01:35:10,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-17 01:35:10,425 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 5 states. [2020-09-17 01:35:10,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:35:10,533 INFO L93 Difference]: Finished difference Result 330 states and 912 transitions. [2020-09-17 01:35:10,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-17 01:35:10,534 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-09-17 01:35:10,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:35:10,538 INFO L225 Difference]: With dead ends: 330 [2020-09-17 01:35:10,538 INFO L226 Difference]: Without dead ends: 266 [2020-09-17 01:35:10,539 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 01:35:10,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-09-17 01:35:10,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-09-17 01:35:10,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-09-17 01:35:10,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 752 transitions. [2020-09-17 01:35:10,560 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 752 transitions. Word has length 9 [2020-09-17 01:35:10,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:35:10,561 INFO L479 AbstractCegarLoop]: Abstraction has 266 states and 752 transitions. [2020-09-17 01:35:10,561 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-17 01:35:10,561 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 752 transitions. [2020-09-17 01:35:10,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-17 01:35:10,563 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:35:10,563 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:35:10,563 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-17 01:35:10,564 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:35:10,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:35:10,564 INFO L82 PathProgramCache]: Analyzing trace with hash 1226466257, now seen corresponding path program 1 times [2020-09-17 01:35:10,564 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:35:10,564 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021731664] [2020-09-17 01:35:10,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:35:10,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:35:10,696 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 01:35:10,697 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021731664] [2020-09-17 01:35:10,697 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:35:10,697 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-17 01:35:10,698 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627372537] [2020-09-17 01:35:10,698 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-17 01:35:10,698 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:35:10,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-17 01:35:10,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-17 01:35:10,699 INFO L87 Difference]: Start difference. First operand 266 states and 752 transitions. Second operand 6 states. [2020-09-17 01:35:10,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:35:10,810 INFO L93 Difference]: Finished difference Result 350 states and 940 transitions. [2020-09-17 01:35:10,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-17 01:35:10,811 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-09-17 01:35:10,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:35:10,813 INFO L225 Difference]: With dead ends: 350 [2020-09-17 01:35:10,813 INFO L226 Difference]: Without dead ends: 182 [2020-09-17 01:35:10,814 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 01:35:10,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-09-17 01:35:10,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2020-09-17 01:35:10,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-09-17 01:35:10,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 458 transitions. [2020-09-17 01:35:10,826 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 458 transitions. Word has length 10 [2020-09-17 01:35:10,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:35:10,826 INFO L479 AbstractCegarLoop]: Abstraction has 182 states and 458 transitions. [2020-09-17 01:35:10,826 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-17 01:35:10,826 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 458 transitions. [2020-09-17 01:35:10,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-17 01:35:10,828 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:35:10,828 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:35:10,828 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-17 01:35:10,828 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:35:10,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:35:10,829 INFO L82 PathProgramCache]: Analyzing trace with hash 1670897012, now seen corresponding path program 1 times [2020-09-17 01:35:10,829 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:35:10,829 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932933395] [2020-09-17 01:35:10,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:35:10,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:35:10,918 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 01:35:10,919 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932933395] [2020-09-17 01:35:10,919 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:35:10,920 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 01:35:10,920 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193336268] [2020-09-17 01:35:10,921 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-17 01:35:10,921 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:35:10,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-17 01:35:10,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-17 01:35:10,922 INFO L87 Difference]: Start difference. First operand 182 states and 458 transitions. Second operand 5 states. [2020-09-17 01:35:10,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:35:10,980 INFO L93 Difference]: Finished difference Result 233 states and 559 transitions. [2020-09-17 01:35:10,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-17 01:35:10,981 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-09-17 01:35:10,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:35:10,982 INFO L225 Difference]: With dead ends: 233 [2020-09-17 01:35:10,982 INFO L226 Difference]: Without dead ends: 92 [2020-09-17 01:35:10,983 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 01:35:10,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-09-17 01:35:10,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2020-09-17 01:35:10,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-09-17 01:35:10,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 210 transitions. [2020-09-17 01:35:10,989 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 210 transitions. Word has length 12 [2020-09-17 01:35:10,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:35:10,989 INFO L479 AbstractCegarLoop]: Abstraction has 92 states and 210 transitions. [2020-09-17 01:35:10,989 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-17 01:35:10,989 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 210 transitions. [2020-09-17 01:35:10,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-17 01:35:10,990 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:35:10,990 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:35:10,991 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-17 01:35:10,991 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:35:10,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:35:10,991 INFO L82 PathProgramCache]: Analyzing trace with hash -1277780743, now seen corresponding path program 1 times [2020-09-17 01:35:10,992 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:35:10,992 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876622884] [2020-09-17 01:35:10,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:35:11,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:35:11,099 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 01:35:11,099 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876622884] [2020-09-17 01:35:11,105 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:35:11,105 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 01:35:11,105 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075524280] [2020-09-17 01:35:11,106 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-17 01:35:11,106 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:35:11,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-17 01:35:11,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-17 01:35:11,107 INFO L87 Difference]: Start difference. First operand 92 states and 210 transitions. Second operand 5 states. [2020-09-17 01:35:11,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:35:11,160 INFO L93 Difference]: Finished difference Result 77 states and 170 transitions. [2020-09-17 01:35:11,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-17 01:35:11,162 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-09-17 01:35:11,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:35:11,162 INFO L225 Difference]: With dead ends: 77 [2020-09-17 01:35:11,163 INFO L226 Difference]: Without dead ends: 0 [2020-09-17 01:35:11,163 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 01:35:11,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-17 01:35:11,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-17 01:35:11,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-17 01:35:11,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-17 01:35:11,164 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-09-17 01:35:11,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:35:11,164 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-17 01:35:11,164 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-17 01:35:11,165 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-17 01:35:11,168 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-17 01:35:11,168 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-17 01:35:11,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.09 01:35:11 BasicIcfg [2020-09-17 01:35:11,173 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-17 01:35:11,175 INFO L168 Benchmark]: Toolchain (without parser) took 4462.57 ms. Allocated memory was 145.8 MB in the beginning and 248.5 MB in the end (delta: 102.8 MB). Free memory was 99.3 MB in the beginning and 203.3 MB in the end (delta: -104.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-17 01:35:11,175 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 145.8 MB. Free memory was 119.1 MB in the beginning and 118.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-09-17 01:35:11,177 INFO L168 Benchmark]: CACSL2BoogieTranslator took 778.34 ms. Allocated memory was 145.8 MB in the beginning and 204.5 MB in the end (delta: 58.7 MB). Free memory was 98.7 MB in the beginning and 161.9 MB in the end (delta: -63.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. [2020-09-17 01:35:11,177 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.93 ms. Allocated memory is still 204.5 MB. Free memory was 161.9 MB in the beginning and 159.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-09-17 01:35:11,178 INFO L168 Benchmark]: Boogie Preprocessor took 30.98 ms. Allocated memory is still 204.5 MB. Free memory was 159.8 MB in the beginning and 158.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-09-17 01:35:11,179 INFO L168 Benchmark]: RCFGBuilder took 475.05 ms. Allocated memory is still 204.5 MB. Free memory was 158.5 MB in the beginning and 136.0 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. [2020-09-17 01:35:11,180 INFO L168 Benchmark]: TraceAbstraction took 3105.94 ms. Allocated memory was 204.5 MB in the beginning and 248.5 MB in the end (delta: 44.0 MB). Free memory was 135.3 MB in the beginning and 203.3 MB in the end (delta: -68.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-17 01:35:11,184 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 145.8 MB. Free memory was 119.1 MB in the beginning and 118.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 778.34 ms. Allocated memory was 145.8 MB in the beginning and 204.5 MB in the end (delta: 58.7 MB). Free memory was 98.7 MB in the beginning and 161.9 MB in the end (delta: -63.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 57.93 ms. Allocated memory is still 204.5 MB. Free memory was 161.9 MB in the beginning and 159.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.98 ms. Allocated memory is still 204.5 MB. Free memory was 159.8 MB in the beginning and 158.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 475.05 ms. Allocated memory is still 204.5 MB. Free memory was 158.5 MB in the beginning and 136.0 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3105.94 ms. Allocated memory was 204.5 MB in the beginning and 248.5 MB in the end (delta: 44.0 MB). Free memory was 135.3 MB in the beginning and 203.3 MB in the end (delta: -68.0 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: 1.5s, 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: 0.2s, 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: 2.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 101 SDtfs, 164 SDslu, 177 SDs, 0 SdLazy, 84 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 2061 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...