/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-keepdead.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe006_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-aa1e80b [2020-12-17 23:44:57,128 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-17 23:44:57,131 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-17 23:44:57,168 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-17 23:44:57,169 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-17 23:44:57,171 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-17 23:44:57,173 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-17 23:44:57,175 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-17 23:44:57,178 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-17 23:44:57,179 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-17 23:44:57,183 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-17 23:44:57,184 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-17 23:44:57,185 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-17 23:44:57,188 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-17 23:44:57,189 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-17 23:44:57,194 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-17 23:44:57,195 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-17 23:44:57,197 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-17 23:44:57,199 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-17 23:44:57,201 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-17 23:44:57,204 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-17 23:44:57,208 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-17 23:44:57,209 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-17 23:44:57,210 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-17 23:44:57,214 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-17 23:44:57,218 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-17 23:44:57,220 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-17 23:44:57,221 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-17 23:44:57,222 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-17 23:44:57,223 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-17 23:44:57,224 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-17 23:44:57,225 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-17 23:44:57,225 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-17 23:44:57,226 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-17 23:44:57,227 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-17 23:44:57,228 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-17 23:44:57,229 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-keepdead.epf [2020-12-17 23:44:57,260 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-17 23:44:57,260 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-17 23:44:57,262 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-17 23:44:57,263 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-17 23:44:57,263 INFO L138 SettingsManager]: * Use SBE=true [2020-12-17 23:44:57,263 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-17 23:44:57,264 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-17 23:44:57,264 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-17 23:44:57,264 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-17 23:44:57,265 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-17 23:44:57,265 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-17 23:44:57,265 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-17 23:44:57,266 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-17 23:44:57,266 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-17 23:44:57,266 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-17 23:44:57,266 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-17 23:44:57,267 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-17 23:44:57,267 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-17 23:44:57,267 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-17 23:44:57,268 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-17 23:44:57,268 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-17 23:44:57,268 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-17 23:44:57,269 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-17 23:44:57,269 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-17 23:44:57,269 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-17 23:44:57,270 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-17 23:44:57,270 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-17 23:44:57,270 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-12-17 23:44:57,270 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-17 23:44:57,271 INFO L138 SettingsManager]: * Remove dead ends from automaton=false [2020-12-17 23:44:57,271 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2020-12-17 23:44:57,271 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-17 23:44:57,714 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-17 23:44:57,756 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-17 23:44:57,759 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-17 23:44:57,761 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-17 23:44:57,765 INFO L275 PluginConnector]: CDTParser initialized [2020-12-17 23:44:57,767 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe006_pso.opt.i [2020-12-17 23:44:57,863 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcaf6178d/c7d853a63e4a4b608077f56c8507b0b9/FLAG63381a517 [2020-12-17 23:44:58,614 INFO L306 CDTParser]: Found 1 translation units. [2020-12-17 23:44:58,616 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe006_pso.opt.i [2020-12-17 23:44:58,640 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcaf6178d/c7d853a63e4a4b608077f56c8507b0b9/FLAG63381a517 [2020-12-17 23:44:58,893 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcaf6178d/c7d853a63e4a4b608077f56c8507b0b9 [2020-12-17 23:44:58,896 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-17 23:44:58,899 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-12-17 23:44:58,900 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-17 23:44:58,901 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-17 23:44:58,904 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-17 23:44:58,905 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 11:44:58" (1/1) ... [2020-12-17 23:44:58,908 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@386636be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:44:58, skipping insertion in model container [2020-12-17 23:44:58,909 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 11:44:58" (1/1) ... [2020-12-17 23:44:58,917 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-17 23:44:58,957 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-17 23:44:59,482 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-17 23:44:59,494 INFO L203 MainTranslator]: Completed pre-run [2020-12-17 23:44:59,551 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-17 23:44:59,640 INFO L208 MainTranslator]: Completed translation [2020-12-17 23:44:59,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:44:59 WrapperNode [2020-12-17 23:44:59,641 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-17 23:44:59,643 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-17 23:44:59,643 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-17 23:44:59,643 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-17 23:44:59,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:44:59" (1/1) ... [2020-12-17 23:44:59,687 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:44:59" (1/1) ... [2020-12-17 23:44:59,711 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-17 23:44:59,711 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-17 23:44:59,712 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-17 23:44:59,712 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-17 23:44:59,721 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:44:59" (1/1) ... [2020-12-17 23:44:59,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:44:59" (1/1) ... [2020-12-17 23:44:59,725 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:44:59" (1/1) ... [2020-12-17 23:44:59,725 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:44:59" (1/1) ... [2020-12-17 23:44:59,731 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:44:59" (1/1) ... [2020-12-17 23:44:59,733 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:44:59" (1/1) ... [2020-12-17 23:44:59,735 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:44:59" (1/1) ... [2020-12-17 23:44:59,739 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-17 23:44:59,740 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-17 23:44:59,740 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-17 23:44:59,740 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-17 23:44:59,741 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:44:59" (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 [2020-12-17 23:44:59,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-17 23:44:59,822 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-17 23:44:59,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-17 23:44:59,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-17 23:44:59,822 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-17 23:44:59,823 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-17 23:44:59,823 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-17 23:44:59,823 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-17 23:44:59,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-17 23:44:59,823 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-17 23:44:59,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-17 23:44:59,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-17 23:44:59,826 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-17 23:45:00,254 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-17 23:45:00,254 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-12-17 23:45:00,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 11:45:00 BoogieIcfgContainer [2020-12-17 23:45:00,257 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-17 23:45:00,259 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-17 23:45:00,259 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-17 23:45:00,262 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-17 23:45:00,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 11:44:58" (1/3) ... [2020-12-17 23:45:00,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a516a91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 11:45:00, skipping insertion in model container [2020-12-17 23:45:00,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:44:59" (2/3) ... [2020-12-17 23:45:00,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a516a91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 11:45:00, skipping insertion in model container [2020-12-17 23:45:00,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 11:45:00" (3/3) ... [2020-12-17 23:45:00,266 INFO L111 eAbstractionObserver]: Analyzing ICFG safe006_pso.opt.i [2020-12-17 23:45:00,284 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-17 23:45:00,284 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-17 23:45:00,288 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-17 23:45:00,289 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-17 23:45:00,323 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,323 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,323 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,323 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,324 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,324 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,324 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,324 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,325 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,325 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,325 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,325 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,326 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,326 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,326 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,326 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,327 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,327 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,327 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,327 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,328 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,328 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,328 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,328 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,330 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,331 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,331 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,331 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,338 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,338 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,339 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,339 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,343 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-17 23:45:00,357 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-17 23:45:00,383 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-17 23:45:00,383 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-17 23:45:00,384 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-17 23:45:00,384 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-17 23:45:00,384 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-17 23:45:00,384 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-17 23:45:00,384 INFO L383 AbstractCegarLoop]: Minimize is NONE [2020-12-17 23:45:00,384 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-17 23:45:00,396 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 69 places, 65 transitions, 140 flow [2020-12-17 23:45:00,477 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1321 states, 1319 states have (on average 2.7498104624715696) internal successors, (3627), 1320 states have internal predecessors, (3627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:45:00,484 INFO L276 IsEmpty]: Start isEmpty. Operand has 1321 states, 1319 states have (on average 2.7498104624715696) internal successors, (3627), 1320 states have internal predecessors, (3627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:45:00,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-12-17 23:45:00,505 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:45:00,506 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 23:45:00,506 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:45:00,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:45:00,512 INFO L82 PathProgramCache]: Analyzing trace with hash 1210534896, now seen corresponding path program 1 times [2020-12-17 23:45:00,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:45:00,522 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705932883] [2020-12-17 23:45:00,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:45:00,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:45:00,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:45:00,945 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705932883] [2020-12-17 23:45:00,946 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:45:00,946 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:45:00,947 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533309048] [2020-12-17 23:45:00,952 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:45:00,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:45:00,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:45:00,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:45:00,976 INFO L87 Difference]: Start difference. First operand has 1321 states, 1319 states have (on average 2.7498104624715696) internal successors, (3627), 1320 states have internal predecessors, (3627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:45:01,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:45:01,195 INFO L93 Difference]: Finished difference Result 1587 states and 4135 transitions. [2020-12-17 23:45:01,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-17 23:45:01,197 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2020-12-17 23:45:01,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:45:01,200 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-17 23:45:01,200 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 4135 transitions. Word has length 37 [2020-12-17 23:45:01,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:45:01,203 INFO L481 AbstractCegarLoop]: Abstraction has 1587 states and 4135 transitions. [2020-12-17 23:45:01,203 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:45:01,204 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 4135 transitions. [2020-12-17 23:45:01,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-12-17 23:45:01,211 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:45:01,211 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 23:45:01,212 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-17 23:45:01,212 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:45:01,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:45:01,213 INFO L82 PathProgramCache]: Analyzing trace with hash -192993615, now seen corresponding path program 1 times [2020-12-17 23:45:01,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:45:01,214 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319247058] [2020-12-17 23:45:01,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:45:01,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:45:01,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:45:01,444 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319247058] [2020-12-17 23:45:01,444 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:45:01,445 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:45:01,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001014263] [2020-12-17 23:45:01,447 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:45:01,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:45:01,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:45:01,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:45:01,449 INFO L87 Difference]: Start difference. First operand 1587 states and 4135 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:45:01,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:45:01,610 INFO L93 Difference]: Finished difference Result 2267 states and 5859 transitions. [2020-12-17 23:45:01,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-17 23:45:01,611 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2020-12-17 23:45:01,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:45:01,613 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-17 23:45:01,613 INFO L78 Accepts]: Start accepts. Automaton has 2267 states and 5859 transitions. Word has length 39 [2020-12-17 23:45:01,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:45:01,614 INFO L481 AbstractCegarLoop]: Abstraction has 2267 states and 5859 transitions. [2020-12-17 23:45:01,614 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:45:01,614 INFO L276 IsEmpty]: Start isEmpty. Operand 2267 states and 5859 transitions. [2020-12-17 23:45:01,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-12-17 23:45:01,620 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:45:01,620 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 23:45:01,620 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-17 23:45:01,620 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:45:01,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:45:01,621 INFO L82 PathProgramCache]: Analyzing trace with hash -1324573390, now seen corresponding path program 1 times [2020-12-17 23:45:01,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:45:01,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628841241] [2020-12-17 23:45:01,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:45:01,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:45:01,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:45:01,790 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628841241] [2020-12-17 23:45:01,790 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:45:01,790 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:45:01,791 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139603166] [2020-12-17 23:45:01,791 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:45:01,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:45:01,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:45:01,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:45:01,793 INFO L87 Difference]: Start difference. First operand 2267 states and 5859 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:45:02,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:45:02,116 INFO L93 Difference]: Finished difference Result 3127 states and 7987 transitions. [2020-12-17 23:45:02,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-17 23:45:02,117 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2020-12-17 23:45:02,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:45:02,119 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-12-17 23:45:02,120 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 7987 transitions. Word has length 41 [2020-12-17 23:45:02,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:45:02,120 INFO L481 AbstractCegarLoop]: Abstraction has 3127 states and 7987 transitions. [2020-12-17 23:45:02,120 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:45:02,121 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 7987 transitions. [2020-12-17 23:45:02,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-12-17 23:45:02,130 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:45:02,130 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 23:45:02,130 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-17 23:45:02,130 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:45:02,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:45:02,132 INFO L82 PathProgramCache]: Analyzing trace with hash 1149488442, now seen corresponding path program 1 times [2020-12-17 23:45:02,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:45:02,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744487714] [2020-12-17 23:45:02,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:45:02,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:45:02,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:45:02,386 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744487714] [2020-12-17 23:45:02,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:45:02,387 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:45:02,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424610454] [2020-12-17 23:45:02,388 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:45:02,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:45:02,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:45:02,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:45:02,389 INFO L87 Difference]: Start difference. First operand 3127 states and 7987 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:45:02,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:45:02,681 INFO L93 Difference]: Finished difference Result 3927 states and 9967 transitions. [2020-12-17 23:45:02,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-17 23:45:02,681 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2020-12-17 23:45:02,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:45:02,684 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-12-17 23:45:02,684 INFO L78 Accepts]: Start accepts. Automaton has 3927 states and 9967 transitions. Word has length 42 [2020-12-17 23:45:02,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:45:02,685 INFO L481 AbstractCegarLoop]: Abstraction has 3927 states and 9967 transitions. [2020-12-17 23:45:02,685 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:45:02,685 INFO L276 IsEmpty]: Start isEmpty. Operand 3927 states and 9967 transitions. [2020-12-17 23:45:02,697 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-17 23:45:02,698 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-17 23:45:02,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 11:45:02 BasicIcfg [2020-12-17 23:45:02,703 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-17 23:45:02,713 INFO L168 Benchmark]: Toolchain (without parser) took 3806.54 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 276.2 MB in the beginning and 288.1 MB in the end (delta: -11.9 MB). Peak memory consumption was 50.4 MB. Max. memory is 16.0 GB. [2020-12-17 23:45:02,713 INFO L168 Benchmark]: CDTParser took 0.44 ms. Allocated memory is still 302.0 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-12-17 23:45:02,714 INFO L168 Benchmark]: CACSL2BoogieTranslator took 741.39 ms. Allocated memory is still 302.0 MB. Free memory was 276.0 MB in the beginning and 245.8 MB in the end (delta: 30.1 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. [2020-12-17 23:45:02,715 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.19 ms. Allocated memory is still 302.0 MB. Free memory was 245.6 MB in the beginning and 283.5 MB in the end (delta: -37.9 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.0 GB. [2020-12-17 23:45:02,716 INFO L168 Benchmark]: Boogie Preprocessor took 27.42 ms. Allocated memory is still 302.0 MB. Free memory was 283.5 MB in the beginning and 282.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2020-12-17 23:45:02,720 INFO L168 Benchmark]: RCFGBuilder took 517.24 ms. Allocated memory is still 302.0 MB. Free memory was 282.5 MB in the beginning and 261.5 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2020-12-17 23:45:02,721 INFO L168 Benchmark]: TraceAbstraction took 2444.79 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 261.5 MB in the beginning and 288.1 MB in the end (delta: -26.6 MB). Peak memory consumption was 35.3 MB. Max. memory is 16.0 GB. [2020-12-17 23:45:02,728 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44 ms. Allocated memory is still 302.0 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 741.39 ms. Allocated memory is still 302.0 MB. Free memory was 276.0 MB in the beginning and 245.8 MB in the end (delta: 30.1 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 68.19 ms. Allocated memory is still 302.0 MB. Free memory was 245.6 MB in the beginning and 283.5 MB in the end (delta: -37.9 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 27.42 ms. Allocated memory is still 302.0 MB. Free memory was 283.5 MB in the beginning and 282.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 517.24 ms. Allocated memory is still 302.0 MB. Free memory was 282.5 MB in the beginning and 261.5 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2444.79 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 261.5 MB in the beginning and 288.1 MB in the end (delta: -26.6 MB). Peak memory consumption was 35.3 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: 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 3 procedures, 63 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 348 SDtfs, 723 SDslu, 1169 SDs, 0 SdLazy, 139 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3927occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 159 NumberOfCodeBlocks, 159 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 155 ConstructedInterpolants, 0 QuantifiedInterpolants, 17567 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...