/usr/bin/java -Xmx16000000000 -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-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe036_power.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-24 11:08:30,294 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-24 11:08:30,297 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-24 11:08:30,334 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-24 11:08:30,335 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-24 11:08:30,338 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-24 11:08:30,340 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-24 11:08:30,346 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-24 11:08:30,348 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-24 11:08:30,352 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-24 11:08:30,353 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-24 11:08:30,355 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-24 11:08:30,355 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-24 11:08:30,357 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-24 11:08:30,359 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-24 11:08:30,360 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-24 11:08:30,362 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-24 11:08:30,363 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-24 11:08:30,366 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-24 11:08:30,373 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-24 11:08:30,375 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-24 11:08:30,376 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-24 11:08:30,378 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-24 11:08:30,379 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-24 11:08:30,385 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-24 11:08:30,385 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-24 11:08:30,386 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-24 11:08:30,387 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-24 11:08:30,388 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-24 11:08:30,389 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-24 11:08:30,389 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-24 11:08:30,390 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-24 11:08:30,391 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-24 11:08:30,392 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-24 11:08:30,393 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-24 11:08:30,393 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-24 11:08:30,394 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-24 11:08:30,394 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-24 11:08:30,394 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-24 11:08:30,395 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-24 11:08:30,395 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-24 11:08:30,399 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-VariableLbe.epf [2021-03-24 11:08:30,433 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-24 11:08:30,434 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-24 11:08:30,437 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-24 11:08:30,437 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-24 11:08:30,437 INFO L138 SettingsManager]: * Use SBE=true [2021-03-24 11:08:30,437 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-24 11:08:30,438 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-24 11:08:30,438 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-24 11:08:30,438 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-24 11:08:30,438 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-24 11:08:30,439 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-24 11:08:30,439 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-24 11:08:30,439 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-24 11:08:30,440 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-24 11:08:30,440 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-24 11:08:30,440 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-24 11:08:30,440 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-24 11:08:30,440 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-24 11:08:30,440 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-24 11:08:30,441 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-24 11:08:30,441 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-24 11:08:30,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 11:08:30,441 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-24 11:08:30,442 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-24 11:08:30,442 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-24 11:08:30,442 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-24 11:08:30,442 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-24 11:08:30,442 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-24 11:08:30,442 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-24 11:08:30,443 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-24 11:08:30,760 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-24 11:08:30,777 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-24 11:08:30,779 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-24 11:08:30,780 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-24 11:08:30,781 INFO L275 PluginConnector]: CDTParser initialized [2021-03-24 11:08:30,782 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe036_power.oepc.i [2021-03-24 11:08:30,853 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/debcf08be/daa07067f2624dc58eb7113adc196a42/FLAG553cc3325 [2021-03-24 11:08:31,378 INFO L306 CDTParser]: Found 1 translation units. [2021-03-24 11:08:31,378 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe036_power.oepc.i [2021-03-24 11:08:31,394 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/debcf08be/daa07067f2624dc58eb7113adc196a42/FLAG553cc3325 [2021-03-24 11:08:31,659 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/debcf08be/daa07067f2624dc58eb7113adc196a42 [2021-03-24 11:08:31,661 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-24 11:08:31,663 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-24 11:08:31,666 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-24 11:08:31,666 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-24 11:08:31,671 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-24 11:08:31,672 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 11:08:31" (1/1) ... [2021-03-24 11:08:31,673 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e28f2e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:08:31, skipping insertion in model container [2021-03-24 11:08:31,673 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 11:08:31" (1/1) ... [2021-03-24 11:08:31,679 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-24 11:08:31,730 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-24 11:08:31,857 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe036_power.oepc.i[952,965] [2021-03-24 11:08:32,059 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 11:08:32,068 INFO L203 MainTranslator]: Completed pre-run [2021-03-24 11:08:32,079 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe036_power.oepc.i[952,965] [2021-03-24 11:08:32,111 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 11:08:32,183 INFO L208 MainTranslator]: Completed translation [2021-03-24 11:08:32,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:08:32 WrapperNode [2021-03-24 11:08:32,184 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-24 11:08:32,186 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-24 11:08:32,187 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-24 11:08:32,187 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-24 11:08:32,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:08:32" (1/1) ... [2021-03-24 11:08:32,221 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:08:32" (1/1) ... [2021-03-24 11:08:32,240 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-24 11:08:32,241 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-24 11:08:32,241 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-24 11:08:32,241 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-24 11:08:32,248 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:08:32" (1/1) ... [2021-03-24 11:08:32,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:08:32" (1/1) ... [2021-03-24 11:08:32,253 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:08:32" (1/1) ... [2021-03-24 11:08:32,253 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:08:32" (1/1) ... [2021-03-24 11:08:32,269 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:08:32" (1/1) ... [2021-03-24 11:08:32,271 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:08:32" (1/1) ... [2021-03-24 11:08:32,275 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:08:32" (1/1) ... [2021-03-24 11:08:32,277 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-24 11:08:32,278 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-24 11:08:32,278 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-24 11:08:32,278 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-24 11:08:32,279 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:08:32" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 11:08:32,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-24 11:08:32,358 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-24 11:08:32,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-24 11:08:32,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-24 11:08:32,359 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-24 11:08:32,359 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-24 11:08:32,359 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-24 11:08:32,360 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-24 11:08:32,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-24 11:08:32,360 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-24 11:08:32,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-24 11:08:32,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-24 11:08:32,362 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-24 11:08:32,658 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-24 11:08:32,658 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-24 11:08:32,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 11:08:32 BoogieIcfgContainer [2021-03-24 11:08:32,659 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-24 11:08:32,661 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-24 11:08:32,661 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-24 11:08:32,663 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-24 11:08:32,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.03 11:08:31" (1/3) ... [2021-03-24 11:08:32,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24186cd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 11:08:32, skipping insertion in model container [2021-03-24 11:08:32,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:08:32" (2/3) ... [2021-03-24 11:08:32,665 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24186cd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 11:08:32, skipping insertion in model container [2021-03-24 11:08:32,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 11:08:32" (3/3) ... [2021-03-24 11:08:32,666 INFO L111 eAbstractionObserver]: Analyzing ICFG safe036_power.oepc.i [2021-03-24 11:08:32,671 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-24 11:08:32,675 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-24 11:08:32,676 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-24 11:08:32,701 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:08:32,701 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:08:32,701 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:08:32,702 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:08:32,702 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:08:32,702 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:08:32,702 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:08:32,702 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:08:32,703 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:08:32,703 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:08:32,703 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:08:32,703 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:08:32,703 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:08:32,704 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:08:32,704 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:08:32,704 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:08:32,704 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:08:32,704 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:08:32,704 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:08:32,704 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:08:32,705 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:08:32,705 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:08:32,705 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:08:32,705 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:08:32,707 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:08:32,707 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:08:32,707 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:08:32,708 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:08:32,711 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:08:32,712 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:08:32,712 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:08:32,712 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:08:32,714 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-24 11:08:32,727 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-03-24 11:08:32,744 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-24 11:08:32,744 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-24 11:08:32,744 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-24 11:08:32,744 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-24 11:08:32,744 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-24 11:08:32,744 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-24 11:08:32,745 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-24 11:08:32,745 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-24 11:08:32,755 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 61 transitions, 132 flow [2021-03-24 11:08:32,783 INFO L129 PetriNetUnfolder]: 2/59 cut-off events. [2021-03-24 11:08:32,783 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 11:08:32,786 INFO L84 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 59 events. 2/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 37 event pairs, 0 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2021-03-24 11:08:32,786 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 61 transitions, 132 flow [2021-03-24 11:08:32,790 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 55 places, 49 transitions, 104 flow [2021-03-24 11:08:32,791 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-24 11:08:32,799 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 49 transitions, 104 flow [2021-03-24 11:08:32,802 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 49 transitions, 104 flow [2021-03-24 11:08:32,803 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 55 places, 49 transitions, 104 flow [2021-03-24 11:08:32,816 INFO L129 PetriNetUnfolder]: 1/49 cut-off events. [2021-03-24 11:08:32,816 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 11:08:32,817 INFO L84 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 49 events. 1/49 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 31 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2021-03-24 11:08:32,818 INFO L142 LiptonReduction]: Number of co-enabled transitions 456 [2021-03-24 11:08:33,774 INFO L154 LiptonReduction]: Checked pairs total: 568 [2021-03-24 11:08:33,774 INFO L156 LiptonReduction]: Total number of compositions: 33 [2021-03-24 11:08:33,776 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 986 [2021-03-24 11:08:33,789 INFO L129 PetriNetUnfolder]: 0/14 cut-off events. [2021-03-24 11:08:33,789 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 11:08:33,790 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:08:33,790 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:08:33,790 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:08:33,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:08:33,797 INFO L82 PathProgramCache]: Analyzing trace with hash -432047333, now seen corresponding path program 1 times [2021-03-24 11:08:33,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:08:33,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692475507] [2021-03-24 11:08:33,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:08:33,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:08:34,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:08:34,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:08:34,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:08:34,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:08:34,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:08:34,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:08:34,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:08:34,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:08:34,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:08:34,231 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692475507] [2021-03-24 11:08:34,232 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:08:34,232 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 11:08:34,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444857841] [2021-03-24 11:08:34,239 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 11:08:34,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:08:34,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 11:08:34,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 11:08:34,255 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 94 [2021-03-24 11:08:34,259 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 16 transitions, 38 flow. Second operand has 4 states, 4 states have (on average 71.75) internal successors, (287), 4 states have internal predecessors, (287), 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) [2021-03-24 11:08:34,259 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:08:34,259 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 94 [2021-03-24 11:08:34,261 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:08:34,310 INFO L129 PetriNetUnfolder]: 6/33 cut-off events. [2021-03-24 11:08:34,310 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 11:08:34,310 INFO L84 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 33 events. 6/33 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 66 event pairs, 2 based on Foata normal form. 4/37 useless extension candidates. Maximal degree in co-relation 49. Up to 15 conditions per place. [2021-03-24 11:08:34,311 INFO L132 encePairwiseOnDemand]: 89/94 looper letters, 4 selfloop transitions, 3 changer transitions 5/23 dead transitions. [2021-03-24 11:08:34,311 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 23 transitions, 76 flow [2021-03-24 11:08:34,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 11:08:34,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 11:08:34,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 369 transitions. [2021-03-24 11:08:34,329 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7851063829787234 [2021-03-24 11:08:34,330 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 369 transitions. [2021-03-24 11:08:34,333 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 369 transitions. [2021-03-24 11:08:34,344 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:08:34,346 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 369 transitions. [2021-03-24 11:08:34,352 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 73.8) internal successors, (369), 5 states have internal predecessors, (369), 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) [2021-03-24 11:08:34,364 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 94.0) internal successors, (564), 6 states have internal predecessors, (564), 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) [2021-03-24 11:08:34,365 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 94.0) internal successors, (564), 6 states have internal predecessors, (564), 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) [2021-03-24 11:08:34,366 INFO L185 Difference]: Start difference. First operand has 23 places, 16 transitions, 38 flow. Second operand 5 states and 369 transitions. [2021-03-24 11:08:34,367 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 23 transitions, 76 flow [2021-03-24 11:08:34,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 23 transitions, 74 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-24 11:08:34,372 INFO L241 Difference]: Finished difference. Result has 28 places, 18 transitions, 63 flow [2021-03-24 11:08:34,373 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=63, PETRI_PLACES=28, PETRI_TRANSITIONS=18} [2021-03-24 11:08:34,374 INFO L343 CegarLoopForPetriNet]: 23 programPoint places, 5 predicate places. [2021-03-24 11:08:34,374 INFO L480 AbstractCegarLoop]: Abstraction has has 28 places, 18 transitions, 63 flow [2021-03-24 11:08:34,374 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 71.75) internal successors, (287), 4 states have internal predecessors, (287), 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) [2021-03-24 11:08:34,374 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:08:34,374 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:08:34,375 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-24 11:08:34,375 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:08:34,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:08:34,376 INFO L82 PathProgramCache]: Analyzing trace with hash -1711449321, now seen corresponding path program 1 times [2021-03-24 11:08:34,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:08:34,376 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806509322] [2021-03-24 11:08:34,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:08:34,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:08:34,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:08:34,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:08:34,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:08:34,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:08:34,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:08:34,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:08:34,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:08:34,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:08:34,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:08:34,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:08:34,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:08:34,505 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806509322] [2021-03-24 11:08:34,506 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:08:34,506 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-24 11:08:34,507 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869719539] [2021-03-24 11:08:34,508 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-24 11:08:34,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:08:34,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-24 11:08:34,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-24 11:08:34,510 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 94 [2021-03-24 11:08:34,511 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 18 transitions, 63 flow. Second operand has 5 states, 5 states have (on average 71.8) internal successors, (359), 5 states have internal predecessors, (359), 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) [2021-03-24 11:08:34,511 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:08:34,511 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 94 [2021-03-24 11:08:34,511 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:08:34,548 INFO L129 PetriNetUnfolder]: 2/22 cut-off events. [2021-03-24 11:08:34,548 INFO L130 PetriNetUnfolder]: For 16/18 co-relation queries the response was YES. [2021-03-24 11:08:34,549 INFO L84 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 22 events. 2/22 cut-off events. For 16/18 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 17 event pairs, 0 based on Foata normal form. 5/27 useless extension candidates. Maximal degree in co-relation 50. Up to 10 conditions per place. [2021-03-24 11:08:34,549 INFO L132 encePairwiseOnDemand]: 89/94 looper letters, 2 selfloop transitions, 5 changer transitions 3/21 dead transitions. [2021-03-24 11:08:34,549 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 21 transitions, 99 flow [2021-03-24 11:08:34,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-24 11:08:34,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-24 11:08:34,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 438 transitions. [2021-03-24 11:08:34,552 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.776595744680851 [2021-03-24 11:08:34,552 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 438 transitions. [2021-03-24 11:08:34,552 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 438 transitions. [2021-03-24 11:08:34,553 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:08:34,553 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 438 transitions. [2021-03-24 11:08:34,554 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 73.0) internal successors, (438), 6 states have internal predecessors, (438), 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) [2021-03-24 11:08:34,556 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 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) [2021-03-24 11:08:34,556 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 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) [2021-03-24 11:08:34,556 INFO L185 Difference]: Start difference. First operand has 28 places, 18 transitions, 63 flow. Second operand 6 states and 438 transitions. [2021-03-24 11:08:34,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 21 transitions, 99 flow [2021-03-24 11:08:34,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 21 transitions, 86 flow, removed 5 selfloop flow, removed 2 redundant places. [2021-03-24 11:08:34,558 INFO L241 Difference]: Finished difference. Result has 32 places, 18 transitions, 74 flow [2021-03-24 11:08:34,558 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=74, PETRI_PLACES=32, PETRI_TRANSITIONS=18} [2021-03-24 11:08:34,559 INFO L343 CegarLoopForPetriNet]: 23 programPoint places, 9 predicate places. [2021-03-24 11:08:34,559 INFO L480 AbstractCegarLoop]: Abstraction has has 32 places, 18 transitions, 74 flow [2021-03-24 11:08:34,560 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 71.8) internal successors, (359), 5 states have internal predecessors, (359), 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) [2021-03-24 11:08:34,560 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:08:34,560 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:08:34,560 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-24 11:08:34,560 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:08:34,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:08:34,561 INFO L82 PathProgramCache]: Analyzing trace with hash -655726463, now seen corresponding path program 1 times [2021-03-24 11:08:34,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:08:34,561 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129109350] [2021-03-24 11:08:34,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:08:34,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:08:34,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:08:34,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:08:34,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:08:34,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:08:34,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:08:34,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:08:34,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:08:34,647 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129109350] [2021-03-24 11:08:34,647 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:08:34,647 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 11:08:34,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023243883] [2021-03-24 11:08:34,647 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 11:08:34,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:08:34,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 11:08:34,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 11:08:34,649 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 94 [2021-03-24 11:08:34,649 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 18 transitions, 74 flow. Second operand has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 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) [2021-03-24 11:08:34,649 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:08:34,650 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 94 [2021-03-24 11:08:34,650 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:08:34,674 INFO L129 PetriNetUnfolder]: 2/27 cut-off events. [2021-03-24 11:08:34,674 INFO L130 PetriNetUnfolder]: For 23/23 co-relation queries the response was YES. [2021-03-24 11:08:34,674 INFO L84 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 27 events. 2/27 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 32 event pairs, 0 based on Foata normal form. 1/28 useless extension candidates. Maximal degree in co-relation 59. Up to 11 conditions per place. [2021-03-24 11:08:34,674 INFO L132 encePairwiseOnDemand]: 91/94 looper letters, 3 selfloop transitions, 1 changer transitions 1/19 dead transitions. [2021-03-24 11:08:34,674 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 19 transitions, 86 flow [2021-03-24 11:08:34,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-24 11:08:34,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-24 11:08:34,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 314 transitions. [2021-03-24 11:08:34,676 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8351063829787234 [2021-03-24 11:08:34,676 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 314 transitions. [2021-03-24 11:08:34,676 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 314 transitions. [2021-03-24 11:08:34,676 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:08:34,676 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 314 transitions. [2021-03-24 11:08:34,677 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 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) [2021-03-24 11:08:34,678 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 94.0) internal successors, (470), 5 states have internal predecessors, (470), 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) [2021-03-24 11:08:34,678 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 94.0) internal successors, (470), 5 states have internal predecessors, (470), 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) [2021-03-24 11:08:34,678 INFO L185 Difference]: Start difference. First operand has 32 places, 18 transitions, 74 flow. Second operand 4 states and 314 transitions. [2021-03-24 11:08:34,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 19 transitions, 86 flow [2021-03-24 11:08:34,679 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 19 transitions, 70 flow, removed 5 selfloop flow, removed 5 redundant places. [2021-03-24 11:08:34,680 INFO L241 Difference]: Finished difference. Result has 30 places, 18 transitions, 65 flow [2021-03-24 11:08:34,680 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=65, PETRI_PLACES=30, PETRI_TRANSITIONS=18} [2021-03-24 11:08:34,680 INFO L343 CegarLoopForPetriNet]: 23 programPoint places, 7 predicate places. [2021-03-24 11:08:34,680 INFO L480 AbstractCegarLoop]: Abstraction has has 30 places, 18 transitions, 65 flow [2021-03-24 11:08:34,680 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 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) [2021-03-24 11:08:34,680 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:08:34,680 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:08:34,681 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-24 11:08:34,681 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:08:34,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:08:34,681 INFO L82 PathProgramCache]: Analyzing trace with hash 1341042895, now seen corresponding path program 2 times [2021-03-24 11:08:34,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:08:34,682 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88756890] [2021-03-24 11:08:34,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:08:34,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:08:34,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:08:34,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:08:34,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:08:34,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:08:34,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:08:34,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:08:34,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:08:34,715 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88756890] [2021-03-24 11:08:34,715 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:08:34,715 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 11:08:34,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884855637] [2021-03-24 11:08:34,715 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 11:08:34,716 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:08:34,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 11:08:34,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 11:08:34,717 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 94 [2021-03-24 11:08:34,717 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 18 transitions, 65 flow. Second operand has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 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) [2021-03-24 11:08:34,717 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:08:34,717 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 94 [2021-03-24 11:08:34,717 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:08:34,730 INFO L129 PetriNetUnfolder]: 1/23 cut-off events. [2021-03-24 11:08:34,730 INFO L130 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2021-03-24 11:08:34,730 INFO L84 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 23 events. 1/23 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 24 event pairs, 0 based on Foata normal form. 1/24 useless extension candidates. Maximal degree in co-relation 49. Up to 6 conditions per place. [2021-03-24 11:08:34,730 INFO L132 encePairwiseOnDemand]: 91/94 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2021-03-24 11:08:34,730 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 18 transitions, 71 flow [2021-03-24 11:08:34,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-24 11:08:34,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-24 11:08:34,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 313 transitions. [2021-03-24 11:08:34,731 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8324468085106383 [2021-03-24 11:08:34,731 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 313 transitions. [2021-03-24 11:08:34,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 313 transitions. [2021-03-24 11:08:34,732 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:08:34,732 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 313 transitions. [2021-03-24 11:08:34,733 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 78.25) internal successors, (313), 4 states have internal predecessors, (313), 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) [2021-03-24 11:08:34,733 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 94.0) internal successors, (470), 5 states have internal predecessors, (470), 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) [2021-03-24 11:08:34,734 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 94.0) internal successors, (470), 5 states have internal predecessors, (470), 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) [2021-03-24 11:08:34,734 INFO L185 Difference]: Start difference. First operand has 30 places, 18 transitions, 65 flow. Second operand 4 states and 313 transitions. [2021-03-24 11:08:34,734 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 18 transitions, 71 flow [2021-03-24 11:08:34,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 18 transitions, 70 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 11:08:34,736 INFO L241 Difference]: Finished difference. Result has 30 places, 0 transitions, 0 flow [2021-03-24 11:08:34,736 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=30, PETRI_TRANSITIONS=0} [2021-03-24 11:08:34,736 INFO L343 CegarLoopForPetriNet]: 23 programPoint places, 7 predicate places. [2021-03-24 11:08:34,736 INFO L480 AbstractCegarLoop]: Abstraction has has 30 places, 0 transitions, 0 flow [2021-03-24 11:08:34,737 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 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) [2021-03-24 11:08:34,737 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-24 11:08:34,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.03 11:08:34 BasicIcfg [2021-03-24 11:08:34,740 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-24 11:08:34,741 INFO L168 Benchmark]: Toolchain (without parser) took 3077.72 ms. Allocated memory was 255.9 MB in the beginning and 339.7 MB in the end (delta: 83.9 MB). Free memory was 234.6 MB in the beginning and 277.3 MB in the end (delta: -42.7 MB). Peak memory consumption was 40.0 MB. Max. memory is 16.0 GB. [2021-03-24 11:08:34,742 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-24 11:08:34,746 INFO L168 Benchmark]: CACSL2BoogieTranslator took 519.86 ms. Allocated memory was 255.9 MB in the beginning and 339.7 MB in the end (delta: 83.9 MB). Free memory was 234.2 MB in the beginning and 303.5 MB in the end (delta: -69.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-03-24 11:08:34,746 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.08 ms. Allocated memory is still 339.7 MB. Free memory was 303.5 MB in the beginning and 301.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-24 11:08:34,747 INFO L168 Benchmark]: Boogie Preprocessor took 36.69 ms. Allocated memory is still 339.7 MB. Free memory was 301.4 MB in the beginning and 300.4 MB in the end (delta: 987.5 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-24 11:08:34,747 INFO L168 Benchmark]: RCFGBuilder took 381.07 ms. Allocated memory is still 339.7 MB. Free memory was 300.3 MB in the beginning and 280.0 MB in the end (delta: 20.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2021-03-24 11:08:34,748 INFO L168 Benchmark]: TraceAbstraction took 2079.43 ms. Allocated memory is still 339.7 MB. Free memory was 279.5 MB in the beginning and 277.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 16.0 GB. [2021-03-24 11:08:34,753 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 519.86 ms. Allocated memory was 255.9 MB in the beginning and 339.7 MB in the end (delta: 83.9 MB). Free memory was 234.2 MB in the beginning and 303.5 MB in the end (delta: -69.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 54.08 ms. Allocated memory is still 339.7 MB. Free memory was 303.5 MB in the beginning and 301.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 36.69 ms. Allocated memory is still 339.7 MB. Free memory was 301.4 MB in the beginning and 300.4 MB in the end (delta: 987.5 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 381.07 ms. Allocated memory is still 339.7 MB. Free memory was 300.3 MB in the beginning and 280.0 MB in the end (delta: 20.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2079.43 ms. Allocated memory is still 339.7 MB. Free memory was 279.5 MB in the beginning and 277.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 972.3ms, 55 PlacesBefore, 23 PlacesAfterwards, 49 TransitionsBefore, 16 TransitionsAfterwards, 456 CoEnabledTransitionPairs, 4 FixpointIterations, 14 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 33 TotalNumberOfCompositions, 568 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 368, positive: 341, positive conditional: 0, positive unconditional: 341, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 236, positive: 222, positive conditional: 0, positive unconditional: 222, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 236, positive: 222, positive conditional: 0, positive unconditional: 222, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 368, positive: 119, positive conditional: 0, positive unconditional: 119, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 236, unknown conditional: 0, unknown unconditional: 236] , Statistics on independence cache: Total cache size (in pairs): 18, Positive cache size: 14, Positive conditional cache size: 0, Positive unconditional cache size: 14, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4 - PositiveResult [Line: 18]: 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 CFG has 3 procedures, 60 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 7.0ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 1997.2ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 227.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1036.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 12 SDtfs, 7 SDslu, 8 SDs, 0 SdLazy, 45 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 34.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 51.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=2, InterpolantAutomatonStates: 19, 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: 15.4ms SsaConstructionTime, 116.6ms SatisfiabilityAnalysisTime, 439.4ms InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 117 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...