/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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/lamport.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-231806ee773fbd0554de777ff4074f5592c67ff4-231806e [2021-10-13 22:49:08,531 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 22:49:08,532 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 22:49:08,590 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 22:49:08,591 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 22:49:08,594 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 22:49:08,596 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 22:49:08,601 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 22:49:08,608 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 22:49:08,612 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 22:49:08,613 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 22:49:08,614 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 22:49:08,614 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 22:49:08,616 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 22:49:08,617 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 22:49:08,620 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 22:49:08,621 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 22:49:08,621 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 22:49:08,624 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 22:49:08,629 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 22:49:08,630 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 22:49:08,631 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 22:49:08,632 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 22:49:08,633 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 22:49:08,638 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-10-13 22:49:08,646 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 22:49:08,646 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 22:49:08,647 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 22:49:08,648 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 [2021-10-13 22:49:08,667 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 22:49:08,667 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 22:49:08,668 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 22:49:08,668 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 22:49:08,668 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 22:49:08,668 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 22:49:08,669 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 22:49:08,669 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 22:49:08,669 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 22:49:08,669 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 22:49:08,669 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 22:49:08,669 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 22:49:08,669 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 22:49:08,669 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 22:49:08,669 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 22:49:08,670 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 22:49:08,670 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 22:49:08,670 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 22:49:08,670 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 22:49:08,670 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-13 22:49:08,670 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 22:49:08,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 22:49:08,670 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 22:49:08,671 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 22:49:08,671 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 22:49:08,671 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 22:49:08,671 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 22:49:08,671 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-13 22:49:08,671 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-13 22:49:08,671 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-13 22:49:08,902 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 22:49:08,921 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 22:49:08,923 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 22:49:08,925 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 22:49:08,927 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 22:49:08,928 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/lamport.i [2021-10-13 22:49:08,995 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f9102ad5/ff2155069e6c4a369312c5f1bdfb1350/FLAGc71e20e12 [2021-10-13 22:49:09,368 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 22:49:09,368 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i [2021-10-13 22:49:09,387 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f9102ad5/ff2155069e6c4a369312c5f1bdfb1350/FLAGc71e20e12 [2021-10-13 22:49:09,745 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f9102ad5/ff2155069e6c4a369312c5f1bdfb1350 [2021-10-13 22:49:09,747 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 22:49:09,749 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-13 22:49:09,753 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 22:49:09,754 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 22:49:09,757 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 22:49:09,757 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:49:09" (1/1) ... [2021-10-13 22:49:09,759 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@753d168f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:49:09, skipping insertion in model container [2021-10-13 22:49:09,759 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:49:09" (1/1) ... [2021-10-13 22:49:09,766 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 22:49:09,809 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 22:49:09,955 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-10-13 22:49:10,069 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i[32156,32169] [2021-10-13 22:49:10,084 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i[34083,34096] [2021-10-13 22:49:10,093 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 22:49:10,103 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 22:49:10,132 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-10-13 22:49:10,150 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i[32156,32169] [2021-10-13 22:49:10,165 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i[34083,34096] [2021-10-13 22:49:10,174 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 22:49:10,207 INFO L208 MainTranslator]: Completed translation [2021-10-13 22:49:10,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:49:10 WrapperNode [2021-10-13 22:49:10,208 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 22:49:10,209 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 22:49:10,209 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 22:49:10,209 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 22:49:10,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:49:10" (1/1) ... [2021-10-13 22:49:10,242 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:49:10" (1/1) ... [2021-10-13 22:49:10,260 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 22:49:10,261 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 22:49:10,261 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 22:49:10,261 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 22:49:10,267 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:49:10" (1/1) ... [2021-10-13 22:49:10,267 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:49:10" (1/1) ... [2021-10-13 22:49:10,269 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:49:10" (1/1) ... [2021-10-13 22:49:10,270 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:49:10" (1/1) ... [2021-10-13 22:49:10,279 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:49:10" (1/1) ... [2021-10-13 22:49:10,283 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:49:10" (1/1) ... [2021-10-13 22:49:10,285 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:49:10" (1/1) ... [2021-10-13 22:49:10,287 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 22:49:10,287 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 22:49:10,288 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 22:49:10,288 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 22:49:10,290 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:49:10" (1/1) ... [2021-10-13 22:49:10,295 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 22:49:10,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 22:49:10,315 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) [2021-10-13 22:49:10,317 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 [2021-10-13 22:49:10,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 22:49:10,342 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-10-13 22:49:10,342 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-10-13 22:49:10,342 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-10-13 22:49:10,343 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-10-13 22:49:10,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 22:49:10,343 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-13 22:49:10,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 22:49:10,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 22:49:10,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 22:49:10,343 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-13 22:49:10,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 22:49:10,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 22:49:10,345 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-13 22:49:10,720 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 22:49:10,721 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-10-13 22:49:10,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:49:10 BoogieIcfgContainer [2021-10-13 22:49:10,723 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 22:49:10,726 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 22:49:10,727 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 22:49:10,730 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 22:49:10,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:49:09" (1/3) ... [2021-10-13 22:49:10,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ea027e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:49:10, skipping insertion in model container [2021-10-13 22:49:10,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:49:10" (2/3) ... [2021-10-13 22:49:10,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ea027e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:49:10, skipping insertion in model container [2021-10-13 22:49:10,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:49:10" (3/3) ... [2021-10-13 22:49:10,733 INFO L111 eAbstractionObserver]: Analyzing ICFG lamport.i [2021-10-13 22:49:10,738 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 22:49:10,738 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-13 22:49:10,738 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-13 22:49:10,773 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,773 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,773 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,773 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,773 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,773 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,774 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,774 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,776 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,778 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,778 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,778 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,778 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,779 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,779 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,779 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,779 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,780 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,780 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,780 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,780 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,780 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,781 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,781 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,781 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,781 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,781 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,782 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,782 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,782 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,782 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,782 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,783 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,783 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,783 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,783 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,783 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,784 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,784 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,784 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,784 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,784 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,784 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,784 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,784 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,785 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,785 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,785 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,785 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,785 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,785 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,785 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,786 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,786 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,787 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,787 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,787 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,787 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,787 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,787 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,788 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,788 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,789 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,789 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,789 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,789 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,790 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,790 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,790 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,790 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,790 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,791 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,791 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,791 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,791 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,792 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,792 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,792 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,792 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,792 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,793 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,793 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,793 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,793 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,793 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,793 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,794 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,794 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,794 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,794 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,795 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,795 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,796 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,796 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,796 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,797 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,799 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,803 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,804 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,804 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,804 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,804 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,804 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,804 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,804 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,804 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,805 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,805 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,808 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,808 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,808 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,808 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,809 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,810 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,810 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,814 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,814 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,814 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,814 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,814 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,814 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,815 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:49:10,821 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-13 22:49:10,868 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 22:49:10,874 INFO L339 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, mConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 22:49:10,874 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-13 22:49:10,892 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 112 places, 129 transitions, 274 flow [2021-10-13 22:49:10,938 INFO L129 PetriNetUnfolder]: 24/127 cut-off events. [2021-10-13 22:49:10,938 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-13 22:49:10,947 INFO L84 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 127 events. 24/127 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 257 event pairs, 0 based on Foata normal form. 0/101 useless extension candidates. Maximal degree in co-relation 97. Up to 5 conditions per place. [2021-10-13 22:49:10,947 INFO L82 GeneralOperation]: Start removeDead. Operand has 112 places, 129 transitions, 274 flow [2021-10-13 22:49:10,953 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 101 places, 118 transitions, 245 flow [2021-10-13 22:49:10,961 INFO L129 PetriNetUnfolder]: 2/37 cut-off events. [2021-10-13 22:49:10,961 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-13 22:49:10,961 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-13 22:49:10,962 INFO L254 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] [2021-10-13 22:49:10,962 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2021-10-13 22:49:10,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:49:10,967 INFO L82 PathProgramCache]: Analyzing trace with hash -1608657040, now seen corresponding path program 1 times [2021-10-13 22:49:10,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:49:10,975 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148977471] [2021-10-13 22:49:10,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:49:10,976 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:49:11,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:49:11,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:49:11,171 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:49:11,172 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148977471] [2021-10-13 22:49:11,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148977471] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:49:11,173 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:49:11,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 22:49:11,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329747723] [2021-10-13 22:49:11,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 22:49:11,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:49:11,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 22:49:11,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 22:49:11,198 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 129 [2021-10-13 22:49:11,207 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 118 transitions, 245 flow. Second operand has 2 states, 2 states have (on average 117.5) internal successors, (235), 2 states have internal predecessors, (235), 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) [2021-10-13 22:49:11,207 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-13 22:49:11,207 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 129 [2021-10-13 22:49:11,209 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-13 22:49:11,258 INFO L129 PetriNetUnfolder]: 12/106 cut-off events. [2021-10-13 22:49:11,258 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-10-13 22:49:11,259 INFO L84 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 106 events. 12/106 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 204 event pairs, 0 based on Foata normal form. 12/104 useless extension candidates. Maximal degree in co-relation 111. Up to 3 conditions per place. [2021-10-13 22:49:11,261 INFO L132 encePairwiseOnDemand]: 117/129 looper letters, 0 selfloop transitions, 0 changer transitions 0/106 dead transitions. [2021-10-13 22:49:11,261 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 106 transitions, 221 flow [2021-10-13 22:49:11,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 22:49:11,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-10-13 22:49:11,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 246 transitions. [2021-10-13 22:49:11,270 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9534883720930233 [2021-10-13 22:49:11,270 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 246 transitions. [2021-10-13 22:49:11,271 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 246 transitions. [2021-10-13 22:49:11,272 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 22:49:11,274 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 246 transitions. [2021-10-13 22:49:11,277 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 123.0) internal successors, (246), 2 states have internal predecessors, (246), 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) [2021-10-13 22:49:11,281 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 129.0) internal successors, (387), 3 states have internal predecessors, (387), 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) [2021-10-13 22:49:11,281 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 129.0) internal successors, (387), 3 states have internal predecessors, (387), 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) [2021-10-13 22:49:11,283 INFO L186 Difference]: Start difference. First operand has 101 places, 118 transitions, 245 flow. Second operand 2 states and 246 transitions. [2021-10-13 22:49:11,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 106 transitions, 221 flow [2021-10-13 22:49:11,286 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 106 transitions, 216 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-10-13 22:49:11,288 INFO L242 Difference]: Finished difference. Result has 99 places, 106 transitions, 216 flow [2021-10-13 22:49:11,290 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=216, PETRI_PLACES=99, PETRI_TRANSITIONS=106} [2021-10-13 22:49:11,291 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, -2 predicate places. [2021-10-13 22:49:11,291 INFO L470 AbstractCegarLoop]: Abstraction has has 99 places, 106 transitions, 216 flow [2021-10-13 22:49:11,291 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 117.5) internal successors, (235), 2 states have internal predecessors, (235), 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) [2021-10-13 22:49:11,291 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-13 22:49:11,291 INFO L254 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] [2021-10-13 22:49:11,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 22:49:11,292 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2021-10-13 22:49:11,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:49:11,292 INFO L82 PathProgramCache]: Analyzing trace with hash 905942179, now seen corresponding path program 1 times [2021-10-13 22:49:11,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:49:11,293 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794697473] [2021-10-13 22:49:11,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:49:11,293 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:49:11,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:49:11,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:49:11,363 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:49:11,363 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794697473] [2021-10-13 22:49:11,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794697473] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:49:11,363 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:49:11,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 22:49:11,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046047485] [2021-10-13 22:49:11,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 22:49:11,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:49:11,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 22:49:11,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 22:49:11,367 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 129 [2021-10-13 22:49:11,367 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 106 transitions, 216 flow. Second operand has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 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) [2021-10-13 22:49:11,368 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-13 22:49:11,368 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 129 [2021-10-13 22:49:11,368 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-13 22:49:11,432 INFO L129 PetriNetUnfolder]: 19/160 cut-off events. [2021-10-13 22:49:11,433 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-13 22:49:11,435 INFO L84 FinitePrefix]: Finished finitePrefix Result has 194 conditions, 160 events. 19/160 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 466 event pairs, 2 based on Foata normal form. 0/139 useless extension candidates. Maximal degree in co-relation 191. Up to 18 conditions per place. [2021-10-13 22:49:11,436 INFO L132 encePairwiseOnDemand]: 124/129 looper letters, 7 selfloop transitions, 3 changer transitions 0/109 dead transitions. [2021-10-13 22:49:11,436 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 109 transitions, 242 flow [2021-10-13 22:49:11,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 22:49:11,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-13 22:49:11,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 342 transitions. [2021-10-13 22:49:11,441 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8837209302325582 [2021-10-13 22:49:11,441 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 342 transitions. [2021-10-13 22:49:11,441 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 342 transitions. [2021-10-13 22:49:11,442 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 22:49:11,442 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 342 transitions. [2021-10-13 22:49:11,443 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 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) [2021-10-13 22:49:11,445 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 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) [2021-10-13 22:49:11,446 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 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) [2021-10-13 22:49:11,446 INFO L186 Difference]: Start difference. First operand has 99 places, 106 transitions, 216 flow. Second operand 3 states and 342 transitions. [2021-10-13 22:49:11,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 109 transitions, 242 flow [2021-10-13 22:49:11,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 109 transitions, 242 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-13 22:49:11,451 INFO L242 Difference]: Finished difference. Result has 103 places, 107 transitions, 236 flow [2021-10-13 22:49:11,451 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=236, PETRI_PLACES=103, PETRI_TRANSITIONS=107} [2021-10-13 22:49:11,451 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 2 predicate places. [2021-10-13 22:49:11,452 INFO L470 AbstractCegarLoop]: Abstraction has has 103 places, 107 transitions, 236 flow [2021-10-13 22:49:11,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 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) [2021-10-13 22:49:11,452 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-13 22:49:11,452 INFO L254 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] [2021-10-13 22:49:11,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 22:49:11,453 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2021-10-13 22:49:11,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:49:11,453 INFO L82 PathProgramCache]: Analyzing trace with hash -1527108856, now seen corresponding path program 1 times [2021-10-13 22:49:11,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:49:11,453 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493393527] [2021-10-13 22:49:11,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:49:11,454 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:49:11,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:49:11,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:49:11,501 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:49:11,501 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493393527] [2021-10-13 22:49:11,501 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493393527] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:49:11,501 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:49:11,501 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 22:49:11,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034334365] [2021-10-13 22:49:11,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 22:49:11,502 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:49:11,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 22:49:11,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 22:49:11,504 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 129 [2021-10-13 22:49:11,504 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 107 transitions, 236 flow. Second operand has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 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) [2021-10-13 22:49:11,505 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-13 22:49:11,505 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 129 [2021-10-13 22:49:11,505 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-13 22:49:11,533 INFO L129 PetriNetUnfolder]: 14/142 cut-off events. [2021-10-13 22:49:11,533 INFO L130 PetriNetUnfolder]: For 14/17 co-relation queries the response was YES. [2021-10-13 22:49:11,534 INFO L84 FinitePrefix]: Finished finitePrefix Result has 188 conditions, 142 events. 14/142 cut-off events. For 14/17 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 368 event pairs, 2 based on Foata normal form. 6/134 useless extension candidates. Maximal degree in co-relation 183. Up to 11 conditions per place. [2021-10-13 22:49:11,535 INFO L132 encePairwiseOnDemand]: 125/129 looper letters, 6 selfloop transitions, 2 changer transitions 0/107 dead transitions. [2021-10-13 22:49:11,535 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 107 transitions, 252 flow [2021-10-13 22:49:11,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 22:49:11,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-13 22:49:11,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 340 transitions. [2021-10-13 22:49:11,537 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8785529715762274 [2021-10-13 22:49:11,537 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 340 transitions. [2021-10-13 22:49:11,537 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 340 transitions. [2021-10-13 22:49:11,537 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 22:49:11,537 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 340 transitions. [2021-10-13 22:49:11,539 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 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) [2021-10-13 22:49:11,540 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 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) [2021-10-13 22:49:11,540 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 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) [2021-10-13 22:49:11,540 INFO L186 Difference]: Start difference. First operand has 103 places, 107 transitions, 236 flow. Second operand 3 states and 340 transitions. [2021-10-13 22:49:11,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 107 transitions, 252 flow [2021-10-13 22:49:11,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 107 transitions, 246 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-13 22:49:11,543 INFO L242 Difference]: Finished difference. Result has 104 places, 107 transitions, 240 flow [2021-10-13 22:49:11,544 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=240, PETRI_PLACES=104, PETRI_TRANSITIONS=107} [2021-10-13 22:49:11,544 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 3 predicate places. [2021-10-13 22:49:11,544 INFO L470 AbstractCegarLoop]: Abstraction has has 104 places, 107 transitions, 240 flow [2021-10-13 22:49:11,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 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) [2021-10-13 22:49:11,545 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-13 22:49:11,545 INFO L254 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, 1, 1, 1] [2021-10-13 22:49:11,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 22:49:11,545 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2021-10-13 22:49:11,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:49:11,546 INFO L82 PathProgramCache]: Analyzing trace with hash -1188193557, now seen corresponding path program 1 times [2021-10-13 22:49:11,546 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:49:11,546 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800581190] [2021-10-13 22:49:11,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:49:11,546 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:49:11,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:49:11,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:49:11,613 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:49:11,613 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800581190] [2021-10-13 22:49:11,613 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800581190] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:49:11,613 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:49:11,613 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 22:49:11,613 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781055747] [2021-10-13 22:49:11,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 22:49:11,614 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:49:11,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 22:49:11,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 22:49:11,616 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 129 [2021-10-13 22:49:11,617 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 107 transitions, 240 flow. Second operand has 4 states, 4 states have (on average 92.75) internal successors, (371), 4 states have internal predecessors, (371), 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) [2021-10-13 22:49:11,617 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-13 22:49:11,617 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 129 [2021-10-13 22:49:11,617 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-13 22:49:11,823 INFO L129 PetriNetUnfolder]: 396/1120 cut-off events. [2021-10-13 22:49:11,823 INFO L130 PetriNetUnfolder]: For 60/61 co-relation queries the response was YES. [2021-10-13 22:49:11,827 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1797 conditions, 1120 events. 396/1120 cut-off events. For 60/61 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 7224 event pairs, 43 based on Foata normal form. 0/959 useless extension candidates. Maximal degree in co-relation 1791. Up to 259 conditions per place. [2021-10-13 22:49:11,831 INFO L132 encePairwiseOnDemand]: 115/129 looper letters, 45 selfloop transitions, 5 changer transitions 24/155 dead transitions. [2021-10-13 22:49:11,831 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 155 transitions, 484 flow [2021-10-13 22:49:11,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 22:49:11,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-10-13 22:49:11,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 537 transitions. [2021-10-13 22:49:11,833 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8325581395348837 [2021-10-13 22:49:11,833 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 537 transitions. [2021-10-13 22:49:11,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 537 transitions. [2021-10-13 22:49:11,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 22:49:11,834 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 537 transitions. [2021-10-13 22:49:11,836 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 107.4) internal successors, (537), 5 states have internal predecessors, (537), 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) [2021-10-13 22:49:11,839 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 129.0) internal successors, (774), 6 states have internal predecessors, (774), 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) [2021-10-13 22:49:11,839 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 129.0) internal successors, (774), 6 states have internal predecessors, (774), 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) [2021-10-13 22:49:11,839 INFO L186 Difference]: Start difference. First operand has 104 places, 107 transitions, 240 flow. Second operand 5 states and 537 transitions. [2021-10-13 22:49:11,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 155 transitions, 484 flow [2021-10-13 22:49:11,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 155 transitions, 482 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-13 22:49:11,848 INFO L242 Difference]: Finished difference. Result has 111 places, 112 transitions, 314 flow [2021-10-13 22:49:11,849 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=314, PETRI_PLACES=111, PETRI_TRANSITIONS=112} [2021-10-13 22:49:11,849 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 10 predicate places. [2021-10-13 22:49:11,849 INFO L470 AbstractCegarLoop]: Abstraction has has 111 places, 112 transitions, 314 flow [2021-10-13 22:49:11,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 92.75) internal successors, (371), 4 states have internal predecessors, (371), 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) [2021-10-13 22:49:11,849 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-13 22:49:11,850 INFO L254 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, 1, 1, 1] [2021-10-13 22:49:11,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-13 22:49:11,850 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2021-10-13 22:49:11,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:49:11,850 INFO L82 PathProgramCache]: Analyzing trace with hash 1681214679, now seen corresponding path program 2 times [2021-10-13 22:49:11,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:49:11,851 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925947367] [2021-10-13 22:49:11,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:49:11,852 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:49:11,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:49:11,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:49:11,931 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:49:11,932 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925947367] [2021-10-13 22:49:11,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925947367] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:49:11,932 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:49:11,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 22:49:11,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073159205] [2021-10-13 22:49:11,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 22:49:11,933 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:49:11,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 22:49:11,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 22:49:11,934 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 129 [2021-10-13 22:49:11,935 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 112 transitions, 314 flow. Second operand has 4 states, 4 states have (on average 110.75) internal successors, (443), 4 states have internal predecessors, (443), 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) [2021-10-13 22:49:11,935 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-13 22:49:11,935 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 129 [2021-10-13 22:49:11,935 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-13 22:49:12,098 INFO L129 PetriNetUnfolder]: 306/1472 cut-off events. [2021-10-13 22:49:12,098 INFO L130 PetriNetUnfolder]: For 211/226 co-relation queries the response was YES. [2021-10-13 22:49:12,104 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2322 conditions, 1472 events. 306/1472 cut-off events. For 211/226 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 10955 event pairs, 27 based on Foata normal form. 1/1301 useless extension candidates. Maximal degree in co-relation 2313. Up to 183 conditions per place. [2021-10-13 22:49:12,111 INFO L132 encePairwiseOnDemand]: 125/129 looper letters, 18 selfloop transitions, 6 changer transitions 0/128 dead transitions. [2021-10-13 22:49:12,111 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 128 transitions, 396 flow [2021-10-13 22:49:12,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 22:49:12,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-10-13 22:49:12,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 570 transitions. [2021-10-13 22:49:12,113 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8837209302325582 [2021-10-13 22:49:12,113 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 570 transitions. [2021-10-13 22:49:12,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 570 transitions. [2021-10-13 22:49:12,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 22:49:12,114 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 570 transitions. [2021-10-13 22:49:12,115 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 114.0) internal successors, (570), 5 states have internal predecessors, (570), 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) [2021-10-13 22:49:12,116 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 129.0) internal successors, (774), 6 states have internal predecessors, (774), 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) [2021-10-13 22:49:12,117 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 129.0) internal successors, (774), 6 states have internal predecessors, (774), 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) [2021-10-13 22:49:12,117 INFO L186 Difference]: Start difference. First operand has 111 places, 112 transitions, 314 flow. Second operand 5 states and 570 transitions. [2021-10-13 22:49:12,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 128 transitions, 396 flow [2021-10-13 22:49:12,122 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 128 transitions, 380 flow, removed 8 selfloop flow, removed 1 redundant places. [2021-10-13 22:49:12,126 INFO L242 Difference]: Finished difference. Result has 117 places, 118 transitions, 348 flow [2021-10-13 22:49:12,126 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=348, PETRI_PLACES=117, PETRI_TRANSITIONS=118} [2021-10-13 22:49:12,127 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 16 predicate places. [2021-10-13 22:49:12,127 INFO L470 AbstractCegarLoop]: Abstraction has has 117 places, 118 transitions, 348 flow [2021-10-13 22:49:12,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 110.75) internal successors, (443), 4 states have internal predecessors, (443), 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) [2021-10-13 22:49:12,127 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-13 22:49:12,127 INFO L254 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, 1, 1, 1] [2021-10-13 22:49:12,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-13 22:49:12,128 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2021-10-13 22:49:12,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:49:12,128 INFO L82 PathProgramCache]: Analyzing trace with hash -1414459315, now seen corresponding path program 3 times [2021-10-13 22:49:12,129 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:49:12,129 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573093344] [2021-10-13 22:49:12,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:49:12,129 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:49:12,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:49:12,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:49:12,198 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:49:12,198 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573093344] [2021-10-13 22:49:12,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573093344] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:49:12,198 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:49:12,198 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 22:49:12,198 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393478250] [2021-10-13 22:49:12,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 22:49:12,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:49:12,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 22:49:12,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 22:49:12,204 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 129 [2021-10-13 22:49:12,204 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 118 transitions, 348 flow. Second operand has 4 states, 4 states have (on average 92.75) internal successors, (371), 4 states have internal predecessors, (371), 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) [2021-10-13 22:49:12,204 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-13 22:49:12,204 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 129 [2021-10-13 22:49:12,204 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-13 22:49:12,662 INFO L129 PetriNetUnfolder]: 1095/3679 cut-off events. [2021-10-13 22:49:12,662 INFO L130 PetriNetUnfolder]: For 1282/1321 co-relation queries the response was YES. [2021-10-13 22:49:12,679 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7128 conditions, 3679 events. 1095/3679 cut-off events. For 1282/1321 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 31523 event pairs, 132 based on Foata normal form. 18/3369 useless extension candidates. Maximal degree in co-relation 7116. Up to 831 conditions per place. [2021-10-13 22:49:12,693 INFO L132 encePairwiseOnDemand]: 115/129 looper letters, 61 selfloop transitions, 16 changer transitions 3/167 dead transitions. [2021-10-13 22:49:12,693 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 167 transitions, 648 flow [2021-10-13 22:49:12,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 22:49:12,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-10-13 22:49:12,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 538 transitions. [2021-10-13 22:49:12,695 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.834108527131783 [2021-10-13 22:49:12,695 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 538 transitions. [2021-10-13 22:49:12,695 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 538 transitions. [2021-10-13 22:49:12,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 22:49:12,696 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 538 transitions. [2021-10-13 22:49:12,698 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 107.6) internal successors, (538), 5 states have internal predecessors, (538), 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) [2021-10-13 22:49:12,699 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 129.0) internal successors, (774), 6 states have internal predecessors, (774), 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) [2021-10-13 22:49:12,700 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 129.0) internal successors, (774), 6 states have internal predecessors, (774), 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) [2021-10-13 22:49:12,700 INFO L186 Difference]: Start difference. First operand has 117 places, 118 transitions, 348 flow. Second operand 5 states and 538 transitions. [2021-10-13 22:49:12,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 167 transitions, 648 flow [2021-10-13 22:49:12,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 167 transitions, 648 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-13 22:49:12,708 INFO L242 Difference]: Finished difference. Result has 125 places, 131 transitions, 486 flow [2021-10-13 22:49:12,708 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=486, PETRI_PLACES=125, PETRI_TRANSITIONS=131} [2021-10-13 22:49:12,708 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 24 predicate places. [2021-10-13 22:49:12,708 INFO L470 AbstractCegarLoop]: Abstraction has has 125 places, 131 transitions, 486 flow [2021-10-13 22:49:12,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 92.75) internal successors, (371), 4 states have internal predecessors, (371), 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) [2021-10-13 22:49:12,709 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-13 22:49:12,709 INFO L254 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, 1, 1, 1] [2021-10-13 22:49:12,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-13 22:49:12,710 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2021-10-13 22:49:12,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:49:12,710 INFO L82 PathProgramCache]: Analyzing trace with hash -982585657, now seen corresponding path program 4 times [2021-10-13 22:49:12,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:49:12,710 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254503696] [2021-10-13 22:49:12,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:49:12,711 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:49:12,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:49:12,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:49:12,773 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:49:12,773 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254503696] [2021-10-13 22:49:12,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254503696] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:49:12,774 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:49:12,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 22:49:12,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915354666] [2021-10-13 22:49:12,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 22:49:12,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:49:12,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 22:49:12,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 22:49:12,780 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 129 [2021-10-13 22:49:12,780 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 131 transitions, 486 flow. Second operand has 4 states, 4 states have (on average 110.75) internal successors, (443), 4 states have internal predecessors, (443), 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) [2021-10-13 22:49:12,780 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-13 22:49:12,780 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 129 [2021-10-13 22:49:12,780 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-13 22:49:13,109 INFO L129 PetriNetUnfolder]: 635/3130 cut-off events. [2021-10-13 22:49:13,110 INFO L130 PetriNetUnfolder]: For 1814/1898 co-relation queries the response was YES. [2021-10-13 22:49:13,127 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6262 conditions, 3130 events. 635/3130 cut-off events. For 1814/1898 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 28250 event pairs, 44 based on Foata normal form. 35/3040 useless extension candidates. Maximal degree in co-relation 6246. Up to 425 conditions per place. [2021-10-13 22:49:13,139 INFO L132 encePairwiseOnDemand]: 125/129 looper letters, 22 selfloop transitions, 11 changer transitions 0/150 dead transitions. [2021-10-13 22:49:13,139 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 150 transitions, 642 flow [2021-10-13 22:49:13,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 22:49:13,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-10-13 22:49:13,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 569 transitions. [2021-10-13 22:49:13,141 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8821705426356589 [2021-10-13 22:49:13,141 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 569 transitions. [2021-10-13 22:49:13,141 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 569 transitions. [2021-10-13 22:49:13,141 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 22:49:13,141 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 569 transitions. [2021-10-13 22:49:13,143 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 113.8) internal successors, (569), 5 states have internal predecessors, (569), 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) [2021-10-13 22:49:13,144 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 129.0) internal successors, (774), 6 states have internal predecessors, (774), 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) [2021-10-13 22:49:13,144 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 129.0) internal successors, (774), 6 states have internal predecessors, (774), 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) [2021-10-13 22:49:13,144 INFO L186 Difference]: Start difference. First operand has 125 places, 131 transitions, 486 flow. Second operand 5 states and 569 transitions. [2021-10-13 22:49:13,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 150 transitions, 642 flow [2021-10-13 22:49:13,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 150 transitions, 642 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-13 22:49:13,152 INFO L242 Difference]: Finished difference. Result has 133 places, 139 transitions, 580 flow [2021-10-13 22:49:13,152 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=486, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=580, PETRI_PLACES=133, PETRI_TRANSITIONS=139} [2021-10-13 22:49:13,153 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 32 predicate places. [2021-10-13 22:49:13,153 INFO L470 AbstractCegarLoop]: Abstraction has has 133 places, 139 transitions, 580 flow [2021-10-13 22:49:13,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 110.75) internal successors, (443), 4 states have internal predecessors, (443), 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) [2021-10-13 22:49:13,153 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-13 22:49:13,153 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:49:13,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-13 22:49:13,154 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2021-10-13 22:49:13,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:49:13,154 INFO L82 PathProgramCache]: Analyzing trace with hash -1499577979, now seen corresponding path program 1 times [2021-10-13 22:49:13,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:49:13,154 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631212451] [2021-10-13 22:49:13,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:49:13,154 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:49:13,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:49:13,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:49:13,186 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:49:13,186 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631212451] [2021-10-13 22:49:13,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631212451] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:49:13,186 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:49:13,186 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 22:49:13,186 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772891882] [2021-10-13 22:49:13,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 22:49:13,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:49:13,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 22:49:13,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 22:49:13,188 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 129 [2021-10-13 22:49:13,188 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 139 transitions, 580 flow. Second operand has 4 states, 4 states have (on average 108.25) internal successors, (433), 4 states have internal predecessors, (433), 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) [2021-10-13 22:49:13,189 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-13 22:49:13,189 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 129 [2021-10-13 22:49:13,189 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-13 22:49:13,566 INFO L129 PetriNetUnfolder]: 685/3301 cut-off events. [2021-10-13 22:49:13,566 INFO L130 PetriNetUnfolder]: For 1533/1584 co-relation queries the response was YES. [2021-10-13 22:49:13,587 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6624 conditions, 3301 events. 685/3301 cut-off events. For 1533/1584 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 30857 event pairs, 59 based on Foata normal form. 3/3185 useless extension candidates. Maximal degree in co-relation 6604. Up to 463 conditions per place. [2021-10-13 22:49:13,595 INFO L132 encePairwiseOnDemand]: 122/129 looper letters, 12 selfloop transitions, 10 changer transitions 5/153 dead transitions. [2021-10-13 22:49:13,595 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 153 transitions, 656 flow [2021-10-13 22:49:13,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 22:49:13,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-10-13 22:49:13,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 561 transitions. [2021-10-13 22:49:13,597 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8697674418604651 [2021-10-13 22:49:13,597 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 561 transitions. [2021-10-13 22:49:13,597 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 561 transitions. [2021-10-13 22:49:13,597 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 22:49:13,598 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 561 transitions. [2021-10-13 22:49:13,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 112.2) internal successors, (561), 5 states have internal predecessors, (561), 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) [2021-10-13 22:49:13,600 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 129.0) internal successors, (774), 6 states have internal predecessors, (774), 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) [2021-10-13 22:49:13,600 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 129.0) internal successors, (774), 6 states have internal predecessors, (774), 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) [2021-10-13 22:49:13,600 INFO L186 Difference]: Start difference. First operand has 133 places, 139 transitions, 580 flow. Second operand 5 states and 561 transitions. [2021-10-13 22:49:13,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 153 transitions, 656 flow [2021-10-13 22:49:13,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 153 transitions, 656 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-13 22:49:13,610 INFO L242 Difference]: Finished difference. Result has 140 places, 143 transitions, 625 flow [2021-10-13 22:49:13,611 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=580, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=625, PETRI_PLACES=140, PETRI_TRANSITIONS=143} [2021-10-13 22:49:13,611 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 39 predicate places. [2021-10-13 22:49:13,611 INFO L470 AbstractCegarLoop]: Abstraction has has 140 places, 143 transitions, 625 flow [2021-10-13 22:49:13,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 108.25) internal successors, (433), 4 states have internal predecessors, (433), 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) [2021-10-13 22:49:13,611 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-13 22:49:13,612 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:49:13,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-13 22:49:13,612 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2021-10-13 22:49:13,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:49:13,612 INFO L82 PathProgramCache]: Analyzing trace with hash -1492161570, now seen corresponding path program 1 times [2021-10-13 22:49:13,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:49:13,613 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530037897] [2021-10-13 22:49:13,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:49:13,613 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:49:13,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:49:13,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:49:13,665 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:49:13,665 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530037897] [2021-10-13 22:49:13,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530037897] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:49:13,665 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:49:13,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 22:49:13,665 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505070642] [2021-10-13 22:49:13,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 22:49:13,666 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:49:13,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 22:49:13,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 22:49:13,667 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 129 [2021-10-13 22:49:13,668 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 143 transitions, 625 flow. Second operand has 4 states, 4 states have (on average 108.25) internal successors, (433), 4 states have internal predecessors, (433), 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) [2021-10-13 22:49:13,668 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-13 22:49:13,668 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 129 [2021-10-13 22:49:13,668 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-13 22:49:13,944 INFO L129 PetriNetUnfolder]: 567/2769 cut-off events. [2021-10-13 22:49:13,944 INFO L130 PetriNetUnfolder]: For 1290/1325 co-relation queries the response was YES. [2021-10-13 22:49:13,957 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5977 conditions, 2769 events. 567/2769 cut-off events. For 1290/1325 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 24840 event pairs, 43 based on Foata normal form. 8/2690 useless extension candidates. Maximal degree in co-relation 5953. Up to 368 conditions per place. [2021-10-13 22:49:13,959 INFO L132 encePairwiseOnDemand]: 122/129 looper letters, 0 selfloop transitions, 0 changer transitions 150/150 dead transitions. [2021-10-13 22:49:13,960 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 150 transitions, 663 flow [2021-10-13 22:49:13,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 22:49:13,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-10-13 22:49:13,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 562 transitions. [2021-10-13 22:49:13,962 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8713178294573644 [2021-10-13 22:49:13,962 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 562 transitions. [2021-10-13 22:49:13,962 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 562 transitions. [2021-10-13 22:49:13,962 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 22:49:13,962 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 562 transitions. [2021-10-13 22:49:13,963 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 112.4) internal successors, (562), 5 states have internal predecessors, (562), 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) [2021-10-13 22:49:13,965 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 129.0) internal successors, (774), 6 states have internal predecessors, (774), 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) [2021-10-13 22:49:13,965 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 129.0) internal successors, (774), 6 states have internal predecessors, (774), 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) [2021-10-13 22:49:13,965 INFO L186 Difference]: Start difference. First operand has 140 places, 143 transitions, 625 flow. Second operand 5 states and 562 transitions. [2021-10-13 22:49:13,965 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 150 transitions, 663 flow [2021-10-13 22:49:13,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 150 transitions, 645 flow, removed 8 selfloop flow, removed 1 redundant places. [2021-10-13 22:49:13,977 INFO L242 Difference]: Finished difference. Result has 139 places, 0 transitions, 0 flow [2021-10-13 22:49:13,977 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=563, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=139, PETRI_TRANSITIONS=0} [2021-10-13 22:49:13,977 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 38 predicate places. [2021-10-13 22:49:13,978 INFO L470 AbstractCegarLoop]: Abstraction has has 139 places, 0 transitions, 0 flow [2021-10-13 22:49:13,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 108.25) internal successors, (433), 4 states have internal predecessors, (433), 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) [2021-10-13 22:49:13,980 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 22:49:13,980 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 22:49:13,980 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-13 22:49:13,981 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-13 22:49:13,981 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 22:49:13,981 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 22:49:13,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-13 22:49:13,989 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-13 22:49:13,989 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 22:49:13,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 10:49:13 BasicIcfg [2021-10-13 22:49:13,991 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 22:49:13,996 INFO L168 Benchmark]: Toolchain (without parser) took 4242.85 ms. Allocated memory was 176.2 MB in the beginning and 310.4 MB in the end (delta: 134.2 MB). Free memory was 120.8 MB in the beginning and 227.9 MB in the end (delta: -107.1 MB). Peak memory consumption was 166.1 MB. Max. memory is 8.0 GB. [2021-10-13 22:49:13,998 INFO L168 Benchmark]: CDTParser took 0.87 ms. Allocated memory is still 176.2 MB. Free memory is still 138.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-13 22:49:13,999 INFO L168 Benchmark]: CACSL2BoogieTranslator took 454.37 ms. Allocated memory was 176.2 MB in the beginning and 242.2 MB in the end (delta: 66.1 MB). Free memory was 120.6 MB in the beginning and 204.5 MB in the end (delta: -83.9 MB). Peak memory consumption was 7.2 MB. Max. memory is 8.0 GB. [2021-10-13 22:49:14,000 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.82 ms. Allocated memory is still 242.2 MB. Free memory was 204.5 MB in the beginning and 202.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-13 22:49:14,000 INFO L168 Benchmark]: Boogie Preprocessor took 26.26 ms. Allocated memory is still 242.2 MB. Free memory was 202.4 MB in the beginning and 201.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-13 22:49:14,000 INFO L168 Benchmark]: RCFGBuilder took 436.41 ms. Allocated memory is still 242.2 MB. Free memory was 200.8 MB in the beginning and 186.6 MB in the end (delta: 14.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-10-13 22:49:14,001 INFO L168 Benchmark]: TraceAbstraction took 3264.45 ms. Allocated memory was 242.2 MB in the beginning and 310.4 MB in the end (delta: 68.2 MB). Free memory was 186.1 MB in the beginning and 227.9 MB in the end (delta: -41.8 MB). Peak memory consumption was 164.8 MB. Max. memory is 8.0 GB. [2021-10-13 22:49:14,002 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.87 ms. Allocated memory is still 176.2 MB. Free memory is still 138.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 454.37 ms. Allocated memory was 176.2 MB in the beginning and 242.2 MB in the end (delta: 66.1 MB). Free memory was 120.6 MB in the beginning and 204.5 MB in the end (delta: -83.9 MB). Peak memory consumption was 7.2 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 50.82 ms. Allocated memory is still 242.2 MB. Free memory was 204.5 MB in the beginning and 202.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 26.26 ms. Allocated memory is still 242.2 MB. Free memory was 202.4 MB in the beginning and 201.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 436.41 ms. Allocated memory is still 242.2 MB. Free memory was 200.8 MB in the beginning and 186.6 MB in the end (delta: 14.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3264.45 ms. Allocated memory was 242.2 MB in the beginning and 310.4 MB in the end (delta: 68.2 MB). Free memory was 186.1 MB in the beginning and 227.9 MB in the end (delta: -41.8 MB). Peak memory consumption was 164.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 834]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 764]: 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 5 procedures, 172 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 8.2ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3120.1ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 2269.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 78.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 144 SDtfs, 122 SDslu, 72 SDs, 0 SdLazy, 275 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 201.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 62.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=625occurred in iteration=8, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 33.2ms SsaConstructionTime, 113.8ms SatisfiabilityAnalysisTime, 415.3ms InterpolantComputationTime, 407 NumberOfCodeBlocks, 407 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 398 ConstructedInterpolants, 0 QuantifiedInterpolants, 538 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-13 22:49:14,032 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...