/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.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-aa1e80b [2020-12-17 23:44:57,184 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-17 23:44:57,187 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-17 23:44:57,245 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-17 23:44:57,246 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-17 23:44:57,247 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-17 23:44:57,249 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-17 23:44:57,252 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-17 23:44:57,254 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-17 23:44:57,255 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-17 23:44:57,257 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-17 23:44:57,258 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-17 23:44:57,259 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-17 23:44:57,260 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-17 23:44:57,262 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-17 23:44:57,263 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-17 23:44:57,265 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-17 23:44:57,266 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-17 23:44:57,268 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-17 23:44:57,271 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-17 23:44:57,273 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-17 23:44:57,274 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-17 23:44:57,276 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-17 23:44:57,278 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-17 23:44:57,281 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-17 23:44:57,286 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-17 23:44:57,287 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-17 23:44:57,288 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-17 23:44:57,289 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-17 23:44:57,291 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-17 23:44:57,291 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-17 23:44:57,292 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-17 23:44:57,293 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-17 23:44:57,293 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-17 23:44:57,294 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-17 23:44:57,295 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-17 23:44:57,299 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 23:44:57,357 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-17 23:44:57,357 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-17 23:44:57,359 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-17 23:44:57,359 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-17 23:44:57,360 INFO L138 SettingsManager]: * Use SBE=true [2020-12-17 23:44:57,361 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-17 23:44:57,362 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-17 23:44:57,362 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-17 23:44:57,362 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-17 23:44:57,363 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-17 23:44:57,363 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-17 23:44:57,363 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-17 23:44:57,364 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-17 23:44:57,364 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-17 23:44:57,364 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-17 23:44:57,364 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-17 23:44:57,365 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-17 23:44:57,366 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-17 23:44:57,366 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-17 23:44:57,367 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-17 23:44:57,367 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-17 23:44:57,367 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-17 23:44:57,367 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-17 23:44:57,368 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-17 23:44:57,368 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-17 23:44:57,368 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-17 23:44:57,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-17 23:44:57,369 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-12-17 23:44:57,369 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-17 23:44:57,369 INFO L138 SettingsManager]: * Remove dead ends from automaton=false [2020-12-17 23:44:57,370 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2020-12-17 23:44:57,370 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-17 23:44:57,854 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-17 23:44:57,884 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-17 23:44:57,888 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-17 23:44:57,889 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-17 23:44:57,890 INFO L275 PluginConnector]: CDTParser initialized [2020-12-17 23:44:57,891 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe006_pso.oepc.i [2020-12-17 23:44:57,979 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/179446350/c8d41a1cf8be4207a0a7ac0b80bd8774/FLAGaecf99b77 [2020-12-17 23:44:58,728 INFO L306 CDTParser]: Found 1 translation units. [2020-12-17 23:44:58,729 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe006_pso.oepc.i [2020-12-17 23:44:58,745 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/179446350/c8d41a1cf8be4207a0a7ac0b80bd8774/FLAGaecf99b77 [2020-12-17 23:44:58,956 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/179446350/c8d41a1cf8be4207a0a7ac0b80bd8774 [2020-12-17 23:44:58,960 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-17 23:44:58,962 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-12-17 23:44:58,964 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-17 23:44:58,964 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-17 23:44:58,969 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-17 23:44:58,970 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 11:44:58" (1/1) ... [2020-12-17 23:44:58,974 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bb9cc4e 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 23:44:58,974 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 11:44:58" (1/1) ... [2020-12-17 23:44:58,983 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-17 23:44:59,024 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-17 23:44:59,534 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-17 23:44:59,550 INFO L203 MainTranslator]: Completed pre-run [2020-12-17 23:44:59,646 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-17 23:44:59,849 INFO L208 MainTranslator]: Completed translation [2020-12-17 23:44:59,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:44:59 WrapperNode [2020-12-17 23:44:59,850 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-17 23:44:59,851 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-17 23:44:59,851 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-17 23:44:59,854 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-17 23:44:59,864 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 23:44:59,906 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 23:44:59,941 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-17 23:44:59,942 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-17 23:44:59,946 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-17 23:44:59,946 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-17 23:44:59,958 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 23:44:59,958 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 23:44:59,966 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 23:44:59,967 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 23:44:59,993 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 23:44:59,996 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 23:44:59,999 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 23:45:00,009 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-17 23:45:00,010 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-17 23:45:00,010 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-17 23:45:00,010 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-17 23:45:00,011 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 23:45:00,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-17 23:45:00,099 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-17 23:45:00,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-17 23:45:00,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-17 23:45:00,100 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-17 23:45:00,101 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-17 23:45:00,101 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-17 23:45:00,102 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-17 23:45:00,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-17 23:45:00,102 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-17 23:45:00,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-17 23:45:00,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-17 23:45:00,104 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 23:45:00,574 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-17 23:45:00,574 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-12-17 23:45:00,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 11:45:00 BoogieIcfgContainer [2020-12-17 23:45:00,577 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-17 23:45:00,578 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-17 23:45:00,579 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-17 23:45:00,582 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-17 23:45:00,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 11:44:58" (1/3) ... [2020-12-17 23:45:00,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f3458bd 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 23:45:00,584 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 23:45:00,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f3458bd 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 23:45:00,584 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 23:45:00,586 INFO L111 eAbstractionObserver]: Analyzing ICFG safe006_pso.oepc.i [2020-12-17 23:45:00,603 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-17 23:45:00,604 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-17 23:45:00,608 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-17 23:45:00,609 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-17 23:45:00,639 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,640 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,640 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,640 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,640 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,641 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,641 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,641 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,641 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,642 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,642 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,642 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,642 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,643 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,643 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,643 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,643 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,643 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,644 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,644 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,644 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,644 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,645 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,645 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,647 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,648 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,648 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,648 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,657 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,657 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,658 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,658 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:00,664 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-17 23:45:00,677 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-17 23:45:00,698 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-17 23:45:00,698 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-17 23:45:00,699 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-17 23:45:00,699 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-17 23:45:00,699 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-17 23:45:00,699 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-17 23:45:00,699 INFO L383 AbstractCegarLoop]: Minimize is NONE [2020-12-17 23:45:00,699 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-17 23:45:00,711 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 69 places, 65 transitions, 140 flow [2020-12-17 23:45:00,809 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 23:45:00,817 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 23:45:00,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-12-17 23:45:00,839 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:45:00,840 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 23:45:00,840 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:45:00,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:45:00,848 INFO L82 PathProgramCache]: Analyzing trace with hash 1210534896, now seen corresponding path program 1 times [2020-12-17 23:45:00,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:45:00,859 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413056146] [2020-12-17 23:45:00,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:45:01,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:45:01,296 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 23:45:01,296 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413056146] [2020-12-17 23:45:01,297 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:45:01,298 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:45:01,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357973358] [2020-12-17 23:45:01,303 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:45:01,303 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:45:01,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:45:01,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:45:01,328 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 23:45:01,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:45:01,630 INFO L93 Difference]: Finished difference Result 1587 states and 4135 transitions. [2020-12-17 23:45:01,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-17 23:45:01,633 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 23:45:01,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:45:01,635 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-17 23:45:01,636 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 4135 transitions. Word has length 37 [2020-12-17 23:45:01,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:45:01,638 INFO L481 AbstractCegarLoop]: Abstraction has 1587 states and 4135 transitions. [2020-12-17 23:45:01,638 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 23:45:01,638 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 4135 transitions. [2020-12-17 23:45:01,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-12-17 23:45:01,646 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:45:01,646 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 23:45:01,646 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-17 23:45:01,647 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:45:01,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:45:01,648 INFO L82 PathProgramCache]: Analyzing trace with hash -192993615, now seen corresponding path program 1 times [2020-12-17 23:45:01,648 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:45:01,648 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113872522] [2020-12-17 23:45:01,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:45:01,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:45:01,896 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 23:45:01,897 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113872522] [2020-12-17 23:45:01,897 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:45:01,898 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:45:01,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246928181] [2020-12-17 23:45:01,900 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:45:01,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:45:01,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:45:01,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:45:01,904 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 23:45:02,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:45:02,184 INFO L93 Difference]: Finished difference Result 2267 states and 5859 transitions. [2020-12-17 23:45:02,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-17 23:45:02,185 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 23:45:02,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:45:02,187 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-17 23:45:02,187 INFO L78 Accepts]: Start accepts. Automaton has 2267 states and 5859 transitions. Word has length 39 [2020-12-17 23:45:02,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:45:02,188 INFO L481 AbstractCegarLoop]: Abstraction has 2267 states and 5859 transitions. [2020-12-17 23:45:02,188 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 23:45:02,188 INFO L276 IsEmpty]: Start isEmpty. Operand 2267 states and 5859 transitions. [2020-12-17 23:45:02,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-12-17 23:45:02,193 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:45:02,193 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 23:45:02,193 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-17 23:45:02,193 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:45:02,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:45:02,194 INFO L82 PathProgramCache]: Analyzing trace with hash -1324573390, now seen corresponding path program 1 times [2020-12-17 23:45:02,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:45:02,195 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403929024] [2020-12-17 23:45:02,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:45:02,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:45:02,387 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 23:45:02,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403929024] [2020-12-17 23:45:02,388 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:45:02,388 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:45:02,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105006185] [2020-12-17 23:45:02,389 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:45:02,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:45:02,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:45:02,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:45:02,391 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 23:45:02,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:45:02,929 INFO L93 Difference]: Finished difference Result 3127 states and 7987 transitions. [2020-12-17 23:45:02,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-17 23:45:02,930 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 23:45:02,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:45:02,931 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-12-17 23:45:02,931 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 7987 transitions. Word has length 41 [2020-12-17 23:45:02,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:45:02,932 INFO L481 AbstractCegarLoop]: Abstraction has 3127 states and 7987 transitions. [2020-12-17 23:45:02,932 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 23:45:02,932 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 7987 transitions. [2020-12-17 23:45:02,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-12-17 23:45:02,979 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:45:02,979 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 23:45:02,979 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-17 23:45:02,979 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:45:02,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:45:02,982 INFO L82 PathProgramCache]: Analyzing trace with hash 1149488442, now seen corresponding path program 1 times [2020-12-17 23:45:02,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:45:02,982 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144475942] [2020-12-17 23:45:02,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:45:03,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:45:03,253 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 23:45:03,253 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144475942] [2020-12-17 23:45:03,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:45:03,254 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:45:03,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105417317] [2020-12-17 23:45:03,255 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:45:03,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:45:03,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:45:03,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:45:03,258 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 23:45:03,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:45:03,697 INFO L93 Difference]: Finished difference Result 3927 states and 9967 transitions. [2020-12-17 23:45:03,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-17 23:45:03,698 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 23:45:03,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:45:03,699 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-12-17 23:45:03,699 INFO L78 Accepts]: Start accepts. Automaton has 3927 states and 9967 transitions. Word has length 42 [2020-12-17 23:45:03,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:45:03,700 INFO L481 AbstractCegarLoop]: Abstraction has 3927 states and 9967 transitions. [2020-12-17 23:45:03,700 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 23:45:03,700 INFO L276 IsEmpty]: Start isEmpty. Operand 3927 states and 9967 transitions. [2020-12-17 23:45:03,709 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-17 23:45:03,709 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-17 23:45:03,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 11:45:03 BasicIcfg [2020-12-17 23:45:03,715 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-17 23:45:03,717 INFO L168 Benchmark]: Toolchain (without parser) took 4754.65 ms. Allocated memory is still 304.1 MB. Free memory was 278.1 MB in the beginning and 222.7 MB in the end (delta: 55.4 MB). Peak memory consumption was 57.6 MB. Max. memory is 16.0 GB. [2020-12-17 23:45:03,718 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 304.1 MB. Free memory is still 274.9 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-12-17 23:45:03,719 INFO L168 Benchmark]: CACSL2BoogieTranslator took 886.77 ms. Allocated memory is still 304.1 MB. Free memory was 277.9 MB in the beginning and 279.6 MB in the end (delta: -1.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 16.0 GB. [2020-12-17 23:45:03,720 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.53 ms. Allocated memory is still 304.1 MB. Free memory was 279.6 MB in the beginning and 277.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-12-17 23:45:03,721 INFO L168 Benchmark]: Boogie Preprocessor took 66.64 ms. Allocated memory is still 304.1 MB. Free memory was 277.7 MB in the beginning and 276.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2020-12-17 23:45:03,722 INFO L168 Benchmark]: RCFGBuilder took 566.90 ms. Allocated memory is still 304.1 MB. Free memory was 275.6 MB in the beginning and 255.7 MB in the end (delta: 19.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.0 GB. [2020-12-17 23:45:03,722 INFO L168 Benchmark]: TraceAbstraction took 3136.46 ms. Allocated memory is still 304.1 MB. Free memory was 254.7 MB in the beginning and 222.7 MB in the end (delta: 32.0 MB). Peak memory consumption was 34.0 MB. Max. memory is 16.0 GB. [2020-12-17 23:45:03,726 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 304.1 MB. Free memory is still 274.9 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 886.77 ms. Allocated memory is still 304.1 MB. Free memory was 277.9 MB in the beginning and 279.6 MB in the end (delta: -1.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 90.53 ms. Allocated memory is still 304.1 MB. Free memory was 279.6 MB in the beginning and 277.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 66.64 ms. Allocated memory is still 304.1 MB. Free memory was 277.7 MB in the beginning and 276.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 566.90 ms. Allocated memory is still 304.1 MB. Free memory was 275.6 MB in the beginning and 255.7 MB in the end (delta: 19.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3136.46 ms. Allocated memory is still 304.1 MB. Free memory was 254.7 MB in the beginning and 222.7 MB in the end (delta: 32.0 MB). Peak memory consumption was 34.0 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: 3.0s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 348 SDtfs, 723 SDslu, 1169 SDs, 0 SdLazy, 139 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 1.4s 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, 0.1s SatisfiabilityAnalysisTime, 0.8s 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...