/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.use.on-demand.petri.net.difference true --traceabstraction.size.reduction.to.apply.after.petri.net.difference REMOVE_REDUNDANT_FLOW -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 12:20:36,414 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 12:20:36,416 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 12:20:36,503 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 12:20:36,503 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 12:20:36,504 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 12:20:36,505 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 12:20:36,507 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 12:20:36,508 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 12:20:36,508 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 12:20:36,509 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 12:20:36,510 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 12:20:36,510 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 12:20:36,511 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 12:20:36,512 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 12:20:36,513 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 12:20:36,513 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 12:20:36,514 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 12:20:36,535 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 12:20:36,544 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 12:20:36,546 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 12:20:36,556 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 12:20:36,557 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 12:20:36,558 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 12:20:36,561 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 12:20:36,562 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 12:20:36,562 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 12:20:36,563 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 12:20:36,567 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 12:20:36,568 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 12:20:36,568 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 12:20:36,569 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 12:20:36,570 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 12:20:36,570 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 12:20:36,571 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 12:20:36,571 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 12:20:36,572 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 12:20:36,572 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 12:20:36,572 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 12:20:36,573 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 12:20:36,573 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 12:20:36,585 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-PN-NoLbe.epf [2022-12-12 12:20:36,634 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 12:20:36,634 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 12:20:36,635 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 12:20:36,635 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 12:20:36,636 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 12:20:36,636 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 12:20:36,636 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 12:20:36,637 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 12:20:36,637 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 12:20:36,637 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 12:20:36,637 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 12:20:36,637 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 12:20:36,637 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 12:20:36,637 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 12:20:36,638 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 12:20:36,638 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 12:20:36,638 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 12:20:36,638 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 12:20:36,638 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 12:20:36,638 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 12:20:36,638 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 12:20:36,639 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 12:20:36,639 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 12:20:36,639 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 12:20:36,639 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 12:20:36,639 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 12:20:36,639 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 12:20:36,639 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-12 12:20:36,640 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 12:20:36,640 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 12:20:36,640 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 12:20:36,640 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_REDUNDANT_FLOW [2022-12-12 12:20:37,141 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 12:20:37,190 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 12:20:37,193 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 12:20:37,194 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 12:20:37,194 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 12:20:37,195 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_true.i [2022-12-12 12:20:38,736 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 12:20:39,125 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 12:20:39,126 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_true.i [2022-12-12 12:20:39,153 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/952489404/7c3585baf9954a98a599b2896d30e798/FLAGbb86a3f89 [2022-12-12 12:20:39,179 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/952489404/7c3585baf9954a98a599b2896d30e798 [2022-12-12 12:20:39,182 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 12:20:39,184 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 12:20:39,186 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 12:20:39,186 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 12:20:39,192 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 12:20:39,193 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 12:20:39" (1/1) ... [2022-12-12 12:20:39,202 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b870892 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:20:39, skipping insertion in model container [2022-12-12 12:20:39,202 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 12:20:39" (1/1) ... [2022-12-12 12:20:39,223 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 12:20:39,292 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 12:20:39,535 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_true.i[1088,1101] [2022-12-12 12:20:39,738 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 12:20:39,764 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 12:20:39,792 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_true.i[1088,1101] [2022-12-12 12:20:39,838 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 12:20:39,909 INFO L208 MainTranslator]: Completed translation [2022-12-12 12:20:39,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:20:39 WrapperNode [2022-12-12 12:20:39,911 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 12:20:39,912 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 12:20:39,912 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 12:20:39,913 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 12:20:39,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:20:39" (1/1) ... [2022-12-12 12:20:39,959 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:20:39" (1/1) ... [2022-12-12 12:20:39,979 INFO L138 Inliner]: procedures = 162, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2022-12-12 12:20:39,980 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 12:20:39,981 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 12:20:39,981 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 12:20:39,981 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 12:20:39,993 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:20:39" (1/1) ... [2022-12-12 12:20:39,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:20:39" (1/1) ... [2022-12-12 12:20:40,004 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:20:39" (1/1) ... [2022-12-12 12:20:40,005 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:20:39" (1/1) ... [2022-12-12 12:20:40,027 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:20:39" (1/1) ... [2022-12-12 12:20:40,030 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:20:39" (1/1) ... [2022-12-12 12:20:40,031 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:20:39" (1/1) ... [2022-12-12 12:20:40,032 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:20:39" (1/1) ... [2022-12-12 12:20:40,036 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 12:20:40,039 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 12:20:40,040 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 12:20:40,042 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 12:20:40,043 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:20:39" (1/1) ... [2022-12-12 12:20:40,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 12:20:40,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 12:20:40,074 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-12 12:20:40,131 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-12 12:20:40,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 12:20:40,151 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-12 12:20:40,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 12:20:40,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 12:20:40,152 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-12 12:20:40,152 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-12 12:20:40,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 12:20:40,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 12:20:40,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 12:20:40,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 12:20:40,154 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 12:20:40,360 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 12:20:40,361 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 12:20:40,538 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 12:20:40,544 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 12:20:40,544 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 12:20:40,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 12:20:40 BoogieIcfgContainer [2022-12-12 12:20:40,546 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 12:20:40,549 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 12:20:40,549 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 12:20:40,553 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 12:20:40,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 12:20:39" (1/3) ... [2022-12-12 12:20:40,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20228ffa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 12:20:40, skipping insertion in model container [2022-12-12 12:20:40,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:20:39" (2/3) ... [2022-12-12 12:20:40,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20228ffa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 12:20:40, skipping insertion in model container [2022-12-12 12:20:40,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 12:20:40" (3/3) ... [2022-12-12 12:20:40,556 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_40-traces-ex-6_true.i [2022-12-12 12:20:40,573 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 12:20:40,573 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-12 12:20:40,573 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 12:20:40,606 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-12 12:20:40,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 61 transitions, 127 flow [2022-12-12 12:20:40,662 INFO L130 PetriNetUnfolder]: 1/60 cut-off events. [2022-12-12 12:20:40,662 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 12:20:40,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 60 events. 1/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 33 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 31. Up to 2 conditions per place. [2022-12-12 12:20:40,679 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 61 transitions, 127 flow [2022-12-12 12:20:40,683 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 52 transitions, 107 flow [2022-12-12 12:20:40,707 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 12:20:40,714 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@641c8ea5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 12:20:40,715 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-12 12:20:40,734 INFO L130 PetriNetUnfolder]: 0/51 cut-off events. [2022-12-12 12:20:40,734 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 12:20:40,735 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:20:40,735 INFO L214 CegarLoopForPetriNet]: 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] [2022-12-12 12:20:40,736 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:20:40,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:20:40,740 INFO L85 PathProgramCache]: Analyzing trace with hash 269756300, now seen corresponding path program 1 times [2022-12-12 12:20:40,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:20:40,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58070352] [2022-12-12 12:20:40,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:20:40,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:20:41,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:20:41,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:20:41,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:20:41,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58070352] [2022-12-12 12:20:41,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58070352] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:20:41,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:20:41,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-12 12:20:41,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836542023] [2022-12-12 12:20:41,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:20:41,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 12:20:41,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:20:41,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 12:20:41,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-12 12:20:41,790 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 61 [2022-12-12 12:20:41,795 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 52 transitions, 107 flow. Second operand has 5 states, 5 states have (on average 51.2) internal successors, (256), 5 states have internal predecessors, (256), 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) [2022-12-12 12:20:41,796 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:20:41,796 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 61 [2022-12-12 12:20:41,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:20:41,957 INFO L130 PetriNetUnfolder]: 8/87 cut-off events. [2022-12-12 12:20:41,958 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-12 12:20:41,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 87 events. 8/87 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 148 event pairs, 0 based on Foata normal form. 3/90 useless extension candidates. Maximal degree in co-relation 85. Up to 10 conditions per place. [2022-12-12 12:20:41,959 INFO L137 encePairwiseOnDemand]: 55/61 looper letters, 8 selfloop transitions, 3 changer transitions 9/64 dead transitions. [2022-12-12 12:20:41,960 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 64 transitions, 171 flow [2022-12-12 12:20:41,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-12 12:20:41,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-12 12:20:41,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 372 transitions. [2022-12-12 12:20:41,992 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8711943793911007 [2022-12-12 12:20:41,996 INFO L295 CegarLoopForPetriNet]: 56 programPoint places, 6 predicate places. [2022-12-12 12:20:41,997 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 64 transitions, 171 flow [2022-12-12 12:20:42,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 64 transitions, 168 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-12-12 12:20:42,001 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 64 transitions, 168 flow [2022-12-12 12:20:42,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 51.2) internal successors, (256), 5 states have internal predecessors, (256), 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) [2022-12-12 12:20:42,010 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:20:42,011 INFO L214 CegarLoopForPetriNet]: 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, 1, 1, 1, 1, 1] [2022-12-12 12:20:42,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 12:20:42,011 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:20:42,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:20:42,013 INFO L85 PathProgramCache]: Analyzing trace with hash -2147435473, now seen corresponding path program 1 times [2022-12-12 12:20:42,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:20:42,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886954823] [2022-12-12 12:20:42,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:20:42,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:20:42,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:20:42,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:20:42,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:20:42,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886954823] [2022-12-12 12:20:42,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886954823] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:20:42,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:20:42,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-12 12:20:42,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446950618] [2022-12-12 12:20:42,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:20:42,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-12 12:20:42,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:20:42,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-12 12:20:42,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-12 12:20:42,506 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 61 [2022-12-12 12:20:42,508 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 64 transitions, 168 flow. Second operand has 6 states, 6 states have (on average 42.0) internal successors, (252), 6 states have internal predecessors, (252), 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) [2022-12-12 12:20:42,508 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:20:42,508 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 61 [2022-12-12 12:20:42,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:20:42,659 INFO L130 PetriNetUnfolder]: 9/103 cut-off events. [2022-12-12 12:20:42,659 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 12:20:42,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 103 events. 9/103 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 198 event pairs, 1 based on Foata normal form. 5/107 useless extension candidates. Maximal degree in co-relation 124. Up to 15 conditions per place. [2022-12-12 12:20:42,660 INFO L137 encePairwiseOnDemand]: 55/61 looper letters, 14 selfloop transitions, 6 changer transitions 9/64 dead transitions. [2022-12-12 12:20:42,661 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 64 transitions, 208 flow [2022-12-12 12:20:42,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 12:20:42,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 12:20:42,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 217 transitions. [2022-12-12 12:20:42,666 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7114754098360656 [2022-12-12 12:20:42,667 INFO L295 CegarLoopForPetriNet]: 56 programPoint places, 9 predicate places. [2022-12-12 12:20:42,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 64 transitions, 208 flow [2022-12-12 12:20:42,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 64 transitions, 173 flow, removed 14 selfloop flow, removed 3 redundant places. [2022-12-12 12:20:42,671 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 64 transitions, 173 flow [2022-12-12 12:20:42,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 42.0) internal successors, (252), 6 states have internal predecessors, (252), 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) [2022-12-12 12:20:42,673 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:20:42,673 INFO L214 CegarLoopForPetriNet]: 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, 1, 1, 1, 1, 1] [2022-12-12 12:20:42,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 12:20:42,678 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:20:42,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:20:42,679 INFO L85 PathProgramCache]: Analyzing trace with hash -230132279, now seen corresponding path program 2 times [2022-12-12 12:20:42,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:20:42,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892103553] [2022-12-12 12:20:42,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:20:42,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:20:42,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:20:43,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:20:43,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:20:43,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892103553] [2022-12-12 12:20:43,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892103553] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:20:43,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:20:43,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-12 12:20:43,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935188282] [2022-12-12 12:20:43,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:20:43,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-12 12:20:43,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:20:43,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-12 12:20:43,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-12 12:20:43,039 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 61 [2022-12-12 12:20:43,039 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 64 transitions, 173 flow. Second operand has 6 states, 6 states have (on average 42.0) internal successors, (252), 6 states have internal predecessors, (252), 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) [2022-12-12 12:20:43,039 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:20:43,039 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 61 [2022-12-12 12:20:43,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:20:43,136 INFO L130 PetriNetUnfolder]: 0/60 cut-off events. [2022-12-12 12:20:43,136 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-12 12:20:43,151 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 60 events. 0/60 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 32 event pairs, 0 based on Foata normal form. 1/61 useless extension candidates. Maximal degree in co-relation 0. Up to 12 conditions per place. [2022-12-12 12:20:43,152 INFO L137 encePairwiseOnDemand]: 56/61 looper letters, 0 selfloop transitions, 0 changer transitions 51/51 dead transitions. [2022-12-12 12:20:43,152 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 51 transitions, 164 flow [2022-12-12 12:20:43,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 12:20:43,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 12:20:43,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 217 transitions. [2022-12-12 12:20:43,154 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7114754098360656 [2022-12-12 12:20:43,155 INFO L295 CegarLoopForPetriNet]: 56 programPoint places, 6 predicate places. [2022-12-12 12:20:43,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 51 transitions, 164 flow [2022-12-12 12:20:43,158 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 51 transitions, 124 flow, removed 14 selfloop flow, removed 5 redundant places. [2022-12-12 12:20:43,158 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 51 transitions, 124 flow [2022-12-12 12:20:43,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 42.0) internal successors, (252), 6 states have internal predecessors, (252), 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) [2022-12-12 12:20:43,161 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-12 12:20:43,162 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-12-12 12:20:43,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 12:20:43,162 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1] [2022-12-12 12:20:43,166 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 12:20:43,167 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 12:20:43,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 12:20:43 BasicIcfg [2022-12-12 12:20:43,191 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 12:20:43,192 INFO L158 Benchmark]: Toolchain (without parser) took 4007.86ms. Allocated memory was 179.3MB in the beginning and 222.3MB in the end (delta: 43.0MB). Free memory was 154.6MB in the beginning and 87.8MB in the end (delta: 66.7MB). Peak memory consumption was 109.2MB. Max. memory is 8.0GB. [2022-12-12 12:20:43,193 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 179.3MB. Free memory is still 156.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 12:20:43,195 INFO L158 Benchmark]: CACSL2BoogieTranslator took 725.49ms. Allocated memory is still 179.3MB. Free memory was 154.0MB in the beginning and 135.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-12 12:20:43,195 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.48ms. Allocated memory is still 179.3MB. Free memory was 135.2MB in the beginning and 133.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-12 12:20:43,197 INFO L158 Benchmark]: Boogie Preprocessor took 55.68ms. Allocated memory is still 179.3MB. Free memory was 133.6MB in the beginning and 132.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 12:20:43,197 INFO L158 Benchmark]: RCFGBuilder took 506.60ms. Allocated memory is still 179.3MB. Free memory was 132.0MB in the beginning and 119.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-12-12 12:20:43,197 INFO L158 Benchmark]: TraceAbstraction took 2642.44ms. Allocated memory was 179.3MB in the beginning and 222.3MB in the end (delta: 43.0MB). Free memory was 118.4MB in the beginning and 87.8MB in the end (delta: 30.5MB). Peak memory consumption was 73.5MB. Max. memory is 8.0GB. [2022-12-12 12:20:43,202 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 179.3MB. Free memory is still 156.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 725.49ms. Allocated memory is still 179.3MB. Free memory was 154.0MB in the beginning and 135.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 67.48ms. Allocated memory is still 179.3MB. Free memory was 135.2MB in the beginning and 133.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 55.68ms. Allocated memory is still 179.3MB. Free memory was 133.6MB in the beginning and 132.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 506.60ms. Allocated memory is still 179.3MB. Free memory was 132.0MB in the beginning and 119.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 2642.44ms. Allocated memory was 179.3MB in the beginning and 222.3MB in the end (delta: 43.0MB). Free memory was 118.4MB in the beginning and 87.8MB in the end (delta: 30.5MB). Peak memory consumption was 73.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 74 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 49 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 49 mSDsluCounter, 32 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 98 IncrementalHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 14 mSDtfsCounter, 98 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=173occurred in iteration=2, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 78 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 135 NumberOfCodeBlocks, 135 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 132 ConstructedInterpolants, 0 QuantifiedInterpolants, 434 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-12 12:20:43,223 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...