/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe-SemanticLooper.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe008_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-16 05:03:02,143 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 05:03:02,146 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 05:03:02,184 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 05:03:02,185 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 05:03:02,193 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 05:03:02,196 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 05:03:02,199 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 05:03:02,202 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 05:03:02,205 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 05:03:02,206 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 05:03:02,207 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 05:03:02,207 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 05:03:02,210 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 05:03:02,212 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 05:03:02,213 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 05:03:02,215 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 05:03:02,216 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 05:03:02,217 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 05:03:02,225 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 05:03:02,227 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 05:03:02,228 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 05:03:02,229 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 05:03:02,229 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 05:03:02,238 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 05:03:02,239 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 05:03:02,239 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 05:03:02,240 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 05:03:02,243 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 05:03:02,244 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 05:03:02,244 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 05:03:02,245 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 05:03:02,245 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 05:03:02,245 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 05:03:02,247 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 05:03:02,247 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 05:03:02,248 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 05:03:02,248 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 05:03:02,249 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 05:03:02,249 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 05:03:02,250 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 05:03:02,251 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-SemanticLbe-SemanticLooper.epf [2020-10-16 05:03:02,288 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 05:03:02,288 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 05:03:02,290 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 05:03:02,290 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 05:03:02,290 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 05:03:02,291 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 05:03:02,291 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 05:03:02,291 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 05:03:02,291 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 05:03:02,291 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 05:03:02,292 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 05:03:02,293 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 05:03:02,293 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 05:03:02,293 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 05:03:02,293 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 05:03:02,294 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 05:03:02,294 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 05:03:02,294 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 05:03:02,294 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 05:03:02,294 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 05:03:02,295 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 05:03:02,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 05:03:02,295 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 05:03:02,295 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-16 05:03:02,295 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 05:03:02,296 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 05:03:02,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 05:03:02,296 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-16 05:03:02,296 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-16 05:03:02,561 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 05:03:02,573 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 05:03:02,577 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 05:03:02,578 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 05:03:02,578 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 05:03:02,579 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe008_tso.opt.i [2020-10-16 05:03:02,642 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b91cf8626/4a563f83a9d049fe87f4f86b7e48db24/FLAGcba24d7b2 [2020-10-16 05:03:03,149 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 05:03:03,149 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe008_tso.opt.i [2020-10-16 05:03:03,168 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b91cf8626/4a563f83a9d049fe87f4f86b7e48db24/FLAGcba24d7b2 [2020-10-16 05:03:03,501 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b91cf8626/4a563f83a9d049fe87f4f86b7e48db24 [2020-10-16 05:03:03,509 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 05:03:03,511 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 05:03:03,512 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 05:03:03,512 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 05:03:03,516 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 05:03:03,518 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:03:03" (1/1) ... [2020-10-16 05:03:03,522 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e86d97c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:03:03, skipping insertion in model container [2020-10-16 05:03:03,522 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:03:03" (1/1) ... [2020-10-16 05:03:03,531 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 05:03:03,595 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 05:03:04,040 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 05:03:04,054 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 05:03:04,217 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 05:03:04,315 INFO L208 MainTranslator]: Completed translation [2020-10-16 05:03:04,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:03:04 WrapperNode [2020-10-16 05:03:04,317 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 05:03:04,319 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 05:03:04,319 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 05:03:04,319 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 05:03:04,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:03:04" (1/1) ... [2020-10-16 05:03:04,344 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:03:04" (1/1) ... [2020-10-16 05:03:04,365 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 05:03:04,366 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 05:03:04,366 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 05:03:04,366 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 05:03:04,373 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:03:04" (1/1) ... [2020-10-16 05:03:04,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:03:04" (1/1) ... [2020-10-16 05:03:04,376 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:03:04" (1/1) ... [2020-10-16 05:03:04,376 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:03:04" (1/1) ... [2020-10-16 05:03:04,383 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:03:04" (1/1) ... [2020-10-16 05:03:04,385 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:03:04" (1/1) ... [2020-10-16 05:03:04,387 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:03:04" (1/1) ... [2020-10-16 05:03:04,391 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 05:03:04,391 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 05:03:04,391 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 05:03:04,391 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 05:03:04,392 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:03:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 05:03:04,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 05:03:04,459 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 05:03:04,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 05:03:04,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 05:03:04,459 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 05:03:04,460 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 05:03:04,460 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 05:03:04,461 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 05:03:04,461 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 05:03:04,462 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 05:03:04,462 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 05:03:04,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 05:03:04,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 05:03:04,465 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 05:03:04,827 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 05:03:04,827 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 05:03:04,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:03:04 BoogieIcfgContainer [2020-10-16 05:03:04,829 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 05:03:04,831 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 05:03:04,831 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 05:03:04,834 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 05:03:04,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 05:03:03" (1/3) ... [2020-10-16 05:03:04,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1110ed15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:03:04, skipping insertion in model container [2020-10-16 05:03:04,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:03:04" (2/3) ... [2020-10-16 05:03:04,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1110ed15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:03:04, skipping insertion in model container [2020-10-16 05:03:04,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:03:04" (3/3) ... [2020-10-16 05:03:04,842 INFO L111 eAbstractionObserver]: Analyzing ICFG safe008_tso.opt.i [2020-10-16 05:03:04,851 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-16 05:03:04,857 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 05:03:04,858 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 05:03:04,888 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:03:04,889 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:03:04,889 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:03:04,889 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:03:04,890 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:03:04,890 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:03:04,891 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:03:04,891 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:03:04,891 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:03:04,891 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:03:04,892 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:03:04,892 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:03:04,893 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:03:04,893 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:03:04,893 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:03:04,893 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:03:04,894 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:03:04,894 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:03:04,897 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:03:04,898 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:03:04,898 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:03:04,898 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:03:04,907 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:03:04,907 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:03:04,908 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:03:04,908 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:03:04,911 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:03:04,912 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:03:04,912 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:03:04,912 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:03:04,930 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-16 05:03:04,952 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 05:03:04,953 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-16 05:03:04,953 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 05:03:04,953 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 05:03:04,953 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 05:03:04,953 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 05:03:04,953 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 05:03:04,954 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 05:03:04,967 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-10-16 05:03:05,011 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-10-16 05:03:05,011 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 05:03:05,016 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-16 05:03:05,016 INFO L82 GeneralOperation]: Start removeDead. Operand has 78 places, 70 transitions, 155 flow [2020-10-16 05:03:05,022 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 56 transitions, 121 flow [2020-10-16 05:03:05,025 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 05:03:05,027 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 56 transitions, 121 flow [2020-10-16 05:03:05,030 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 56 transitions, 121 flow [2020-10-16 05:03:05,031 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 65 places, 56 transitions, 121 flow [2020-10-16 05:03:05,050 INFO L129 PetriNetUnfolder]: 1/56 cut-off events. [2020-10-16 05:03:05,050 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 05:03:05,051 INFO L80 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 56 events. 1/56 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2020-10-16 05:03:05,053 INFO L117 LiptonReduction]: Number of co-enabled transitions 864 [2020-10-16 05:03:06,438 INFO L132 LiptonReduction]: Checked pairs total: 1693 [2020-10-16 05:03:06,438 INFO L134 LiptonReduction]: Total number of compositions: 43 [2020-10-16 05:03:06,441 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1418 [2020-10-16 05:03:06,449 INFO L129 PetriNetUnfolder]: 0/13 cut-off events. [2020-10-16 05:03:06,450 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 05:03:06,450 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:03:06,451 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:03:06,452 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:03:06,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:03:06,458 INFO L82 PathProgramCache]: Analyzing trace with hash 158172579, now seen corresponding path program 1 times [2020-10-16 05:03:06,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:03:06,468 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253480685] [2020-10-16 05:03:06,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:03:06,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:03:06,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:03:06,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253480685] [2020-10-16 05:03:06,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:03:06,690 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 05:03:06,690 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510741097] [2020-10-16 05:03:06,699 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 05:03:06,699 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:03:06,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 05:03:06,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 05:03:06,714 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 113 [2020-10-16 05:03:06,716 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 18 transitions, 45 flow. Second operand 3 states. [2020-10-16 05:03:06,716 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:03:06,717 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 113 [2020-10-16 05:03:06,718 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:03:06,743 INFO L129 PetriNetUnfolder]: 0/17 cut-off events. [2020-10-16 05:03:06,744 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 05:03:06,744 INFO L80 FinitePrefix]: Finished finitePrefix Result has 31 conditions, 17 events. 0/17 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 16 event pairs, 0 based on Foata normal form. 3/20 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2020-10-16 05:03:06,745 INFO L132 encePairwiseOnDemand]: 109/113 looper letters, 1 selfloop transitions, 2 changer transitions 0/17 dead transitions. [2020-10-16 05:03:06,745 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 17 transitions, 49 flow [2020-10-16 05:03:06,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 05:03:06,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 05:03:06,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 300 transitions. [2020-10-16 05:03:06,762 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8849557522123894 [2020-10-16 05:03:06,763 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 300 transitions. [2020-10-16 05:03:06,764 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 300 transitions. [2020-10-16 05:03:06,766 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:03:06,769 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 300 transitions. [2020-10-16 05:03:06,773 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 05:03:06,779 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 05:03:06,780 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 05:03:06,782 INFO L185 Difference]: Start difference. First operand has 27 places, 18 transitions, 45 flow. Second operand 3 states and 300 transitions. [2020-10-16 05:03:06,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 17 transitions, 49 flow [2020-10-16 05:03:06,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 17 transitions, 46 flow, removed 0 selfloop flow, removed 3 redundant places. [2020-10-16 05:03:06,789 INFO L241 Difference]: Finished difference. Result has 27 places, 17 transitions, 48 flow [2020-10-16 05:03:06,792 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=48, PETRI_PLACES=27, PETRI_TRANSITIONS=17} [2020-10-16 05:03:06,793 INFO L342 CegarLoopForPetriNet]: 27 programPoint places, 0 predicate places. [2020-10-16 05:03:06,793 INFO L481 AbstractCegarLoop]: Abstraction has has 27 places, 17 transitions, 48 flow [2020-10-16 05:03:06,793 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 05:03:06,793 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:03:06,794 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:03:06,794 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 05:03:06,794 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:03:06,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:03:06,795 INFO L82 PathProgramCache]: Analyzing trace with hash 607157492, now seen corresponding path program 1 times [2020-10-16 05:03:06,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:03:06,795 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870924871] [2020-10-16 05:03:06,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:03:06,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:03:06,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:03:06,879 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870924871] [2020-10-16 05:03:06,880 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:03:06,881 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 05:03:06,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362540201] [2020-10-16 05:03:06,882 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 05:03:06,883 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:03:06,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 05:03:06,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 05:03:06,889 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 113 [2020-10-16 05:03:06,890 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 17 transitions, 48 flow. Second operand 4 states. [2020-10-16 05:03:06,890 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:03:06,890 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 113 [2020-10-16 05:03:06,891 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:03:06,931 INFO L129 PetriNetUnfolder]: 0/22 cut-off events. [2020-10-16 05:03:06,934 INFO L130 PetriNetUnfolder]: For 5/12 co-relation queries the response was YES. [2020-10-16 05:03:06,934 INFO L80 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 22 events. 0/22 cut-off events. For 5/12 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 47 event pairs, 0 based on Foata normal form. 2/24 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2020-10-16 05:03:06,935 INFO L132 encePairwiseOnDemand]: 109/113 looper letters, 1 selfloop transitions, 3 changer transitions 1/18 dead transitions. [2020-10-16 05:03:06,935 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 18 transitions, 63 flow [2020-10-16 05:03:06,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 05:03:06,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 05:03:06,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 375 transitions. [2020-10-16 05:03:06,940 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8296460176991151 [2020-10-16 05:03:06,940 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 375 transitions. [2020-10-16 05:03:06,940 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 375 transitions. [2020-10-16 05:03:06,945 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:03:06,945 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 375 transitions. [2020-10-16 05:03:06,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 05:03:06,950 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 05:03:06,952 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 05:03:06,952 INFO L185 Difference]: Start difference. First operand has 27 places, 17 transitions, 48 flow. Second operand 4 states and 375 transitions. [2020-10-16 05:03:06,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 18 transitions, 63 flow [2020-10-16 05:03:06,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 18 transitions, 57 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-16 05:03:06,954 INFO L241 Difference]: Finished difference. Result has 30 places, 17 transitions, 58 flow [2020-10-16 05:03:06,954 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=58, PETRI_PLACES=30, PETRI_TRANSITIONS=17} [2020-10-16 05:03:06,955 INFO L342 CegarLoopForPetriNet]: 27 programPoint places, 3 predicate places. [2020-10-16 05:03:06,955 INFO L481 AbstractCegarLoop]: Abstraction has has 30 places, 17 transitions, 58 flow [2020-10-16 05:03:06,955 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 05:03:06,955 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:03:06,956 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:03:06,956 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 05:03:06,956 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:03:06,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:03:06,957 INFO L82 PathProgramCache]: Analyzing trace with hash 539312677, now seen corresponding path program 1 times [2020-10-16 05:03:06,957 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:03:06,957 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274579008] [2020-10-16 05:03:06,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:03:06,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:03:07,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:03:07,027 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274579008] [2020-10-16 05:03:07,028 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:03:07,028 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 05:03:07,028 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914339126] [2020-10-16 05:03:07,029 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 05:03:07,029 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:03:07,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 05:03:07,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 05:03:07,031 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 113 [2020-10-16 05:03:07,031 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 17 transitions, 58 flow. Second operand 3 states. [2020-10-16 05:03:07,031 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:03:07,031 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 113 [2020-10-16 05:03:07,032 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:03:07,040 INFO L129 PetriNetUnfolder]: 0/17 cut-off events. [2020-10-16 05:03:07,041 INFO L130 PetriNetUnfolder]: For 15/17 co-relation queries the response was YES. [2020-10-16 05:03:07,041 INFO L80 FinitePrefix]: Finished finitePrefix Result has 41 conditions, 17 events. 0/17 cut-off events. For 15/17 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 21 event pairs, 0 based on Foata normal form. 1/18 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2020-10-16 05:03:07,041 INFO L132 encePairwiseOnDemand]: 110/113 looper letters, 1 selfloop transitions, 2 changer transitions 0/17 dead transitions. [2020-10-16 05:03:07,041 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 17 transitions, 64 flow [2020-10-16 05:03:07,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 05:03:07,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 05:03:07,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 292 transitions. [2020-10-16 05:03:07,044 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8613569321533924 [2020-10-16 05:03:07,044 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 292 transitions. [2020-10-16 05:03:07,044 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 292 transitions. [2020-10-16 05:03:07,044 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:03:07,045 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 292 transitions. [2020-10-16 05:03:07,046 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 05:03:07,047 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 05:03:07,047 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 05:03:07,047 INFO L185 Difference]: Start difference. First operand has 30 places, 17 transitions, 58 flow. Second operand 3 states and 292 transitions. [2020-10-16 05:03:07,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 17 transitions, 64 flow [2020-10-16 05:03:07,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 17 transitions, 52 flow, removed 2 selfloop flow, removed 4 redundant places. [2020-10-16 05:03:07,049 INFO L241 Difference]: Finished difference. Result has 29 places, 17 transitions, 54 flow [2020-10-16 05:03:07,049 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=54, PETRI_PLACES=29, PETRI_TRANSITIONS=17} [2020-10-16 05:03:07,049 INFO L342 CegarLoopForPetriNet]: 27 programPoint places, 2 predicate places. [2020-10-16 05:03:07,050 INFO L481 AbstractCegarLoop]: Abstraction has has 29 places, 17 transitions, 54 flow [2020-10-16 05:03:07,050 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 05:03:07,050 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:03:07,050 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:03:07,050 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 05:03:07,051 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:03:07,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:03:07,051 INFO L82 PathProgramCache]: Analyzing trace with hash 658078901, now seen corresponding path program 1 times [2020-10-16 05:03:07,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:03:07,052 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850180925] [2020-10-16 05:03:07,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:03:07,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:03:07,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:03:07,133 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850180925] [2020-10-16 05:03:07,133 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:03:07,133 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 05:03:07,133 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605329575] [2020-10-16 05:03:07,134 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 05:03:07,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:03:07,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 05:03:07,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 05:03:07,137 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 113 [2020-10-16 05:03:07,139 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 17 transitions, 54 flow. Second operand 4 states. [2020-10-16 05:03:07,139 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:03:07,139 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 113 [2020-10-16 05:03:07,140 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:03:07,177 INFO L129 PetriNetUnfolder]: 0/22 cut-off events. [2020-10-16 05:03:07,178 INFO L130 PetriNetUnfolder]: For 10/11 co-relation queries the response was YES. [2020-10-16 05:03:07,178 INFO L80 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 22 events. 0/22 cut-off events. For 10/11 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 32 event pairs, 0 based on Foata normal form. 2/24 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2020-10-16 05:03:07,178 INFO L132 encePairwiseOnDemand]: 109/113 looper letters, 1 selfloop transitions, 3 changer transitions 1/18 dead transitions. [2020-10-16 05:03:07,179 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 18 transitions, 69 flow [2020-10-16 05:03:07,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 05:03:07,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 05:03:07,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 371 transitions. [2020-10-16 05:03:07,181 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8207964601769911 [2020-10-16 05:03:07,181 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 371 transitions. [2020-10-16 05:03:07,181 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 371 transitions. [2020-10-16 05:03:07,182 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:03:07,182 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 371 transitions. [2020-10-16 05:03:07,183 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 05:03:07,184 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 05:03:07,184 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 05:03:07,184 INFO L185 Difference]: Start difference. First operand has 29 places, 17 transitions, 54 flow. Second operand 4 states and 371 transitions. [2020-10-16 05:03:07,185 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 18 transitions, 69 flow [2020-10-16 05:03:07,185 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 18 transitions, 63 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-16 05:03:07,186 INFO L241 Difference]: Finished difference. Result has 32 places, 17 transitions, 64 flow [2020-10-16 05:03:07,186 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=64, PETRI_PLACES=32, PETRI_TRANSITIONS=17} [2020-10-16 05:03:07,187 INFO L342 CegarLoopForPetriNet]: 27 programPoint places, 5 predicate places. [2020-10-16 05:03:07,187 INFO L481 AbstractCegarLoop]: Abstraction has has 32 places, 17 transitions, 64 flow [2020-10-16 05:03:07,187 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 05:03:07,187 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:03:07,187 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:03:07,187 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 05:03:07,188 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:03:07,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:03:07,188 INFO L82 PathProgramCache]: Analyzing trace with hash 461677915, now seen corresponding path program 1 times [2020-10-16 05:03:07,189 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:03:07,189 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302530850] [2020-10-16 05:03:07,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:03:07,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:03:07,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:03:07,262 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302530850] [2020-10-16 05:03:07,262 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:03:07,262 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 05:03:07,263 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693779890] [2020-10-16 05:03:07,263 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 05:03:07,263 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:03:07,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 05:03:07,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 05:03:07,265 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 113 [2020-10-16 05:03:07,266 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 17 transitions, 64 flow. Second operand 4 states. [2020-10-16 05:03:07,266 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:03:07,266 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 113 [2020-10-16 05:03:07,266 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:03:07,312 INFO L129 PetriNetUnfolder]: 28/69 cut-off events. [2020-10-16 05:03:07,313 INFO L130 PetriNetUnfolder]: For 131/142 co-relation queries the response was YES. [2020-10-16 05:03:07,314 INFO L80 FinitePrefix]: Finished finitePrefix Result has 176 conditions, 69 events. 28/69 cut-off events. For 131/142 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 205 event pairs, 12 based on Foata normal form. 9/73 useless extension candidates. Maximal degree in co-relation 163. Up to 45 conditions per place. [2020-10-16 05:03:07,315 INFO L132 encePairwiseOnDemand]: 107/113 looper letters, 5 selfloop transitions, 4 changer transitions 7/27 dead transitions. [2020-10-16 05:03:07,315 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 27 transitions, 116 flow [2020-10-16 05:03:07,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 05:03:07,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-16 05:03:07,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 423 transitions. [2020-10-16 05:03:07,318 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.7486725663716814 [2020-10-16 05:03:07,318 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 423 transitions. [2020-10-16 05:03:07,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 423 transitions. [2020-10-16 05:03:07,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:03:07,319 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 423 transitions. [2020-10-16 05:03:07,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-16 05:03:07,321 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-16 05:03:07,321 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-16 05:03:07,321 INFO L185 Difference]: Start difference. First operand has 32 places, 17 transitions, 64 flow. Second operand 5 states and 423 transitions. [2020-10-16 05:03:07,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 27 transitions, 116 flow [2020-10-16 05:03:07,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 27 transitions, 100 flow, removed 3 selfloop flow, removed 5 redundant places. [2020-10-16 05:03:07,324 INFO L241 Difference]: Finished difference. Result has 34 places, 20 transitions, 84 flow [2020-10-16 05:03:07,324 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=84, PETRI_PLACES=34, PETRI_TRANSITIONS=20} [2020-10-16 05:03:07,324 INFO L342 CegarLoopForPetriNet]: 27 programPoint places, 7 predicate places. [2020-10-16 05:03:07,325 INFO L481 AbstractCegarLoop]: Abstraction has has 34 places, 20 transitions, 84 flow [2020-10-16 05:03:07,325 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 05:03:07,325 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:03:07,325 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:03:07,325 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 05:03:07,325 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:03:07,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:03:07,328 INFO L82 PathProgramCache]: Analyzing trace with hash -1107418127, now seen corresponding path program 1 times [2020-10-16 05:03:07,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:03:07,328 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390613265] [2020-10-16 05:03:07,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:03:07,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:03:07,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:03:07,415 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390613265] [2020-10-16 05:03:07,415 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:03:07,416 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 05:03:07,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146341765] [2020-10-16 05:03:07,416 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 05:03:07,416 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:03:07,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 05:03:07,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 05:03:07,418 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 113 [2020-10-16 05:03:07,419 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 20 transitions, 84 flow. Second operand 5 states. [2020-10-16 05:03:07,419 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:03:07,419 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 113 [2020-10-16 05:03:07,419 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:03:07,482 INFO L129 PetriNetUnfolder]: 16/50 cut-off events. [2020-10-16 05:03:07,482 INFO L130 PetriNetUnfolder]: For 71/114 co-relation queries the response was YES. [2020-10-16 05:03:07,483 INFO L80 FinitePrefix]: Finished finitePrefix Result has 179 conditions, 50 events. 16/50 cut-off events. For 71/114 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 126 event pairs, 2 based on Foata normal form. 17/65 useless extension candidates. Maximal degree in co-relation 166. Up to 35 conditions per place. [2020-10-16 05:03:07,484 INFO L132 encePairwiseOnDemand]: 107/113 looper letters, 5 selfloop transitions, 7 changer transitions 7/30 dead transitions. [2020-10-16 05:03:07,484 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 30 transitions, 180 flow [2020-10-16 05:03:07,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 05:03:07,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-10-16 05:03:07,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 507 transitions. [2020-10-16 05:03:07,486 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.7477876106194691 [2020-10-16 05:03:07,487 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 507 transitions. [2020-10-16 05:03:07,487 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 507 transitions. [2020-10-16 05:03:07,487 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:03:07,488 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 507 transitions. [2020-10-16 05:03:07,489 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 7 states. [2020-10-16 05:03:07,490 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 7 states. [2020-10-16 05:03:07,490 INFO L81 ComplementDD]: Finished complementDD. Result 7 states. [2020-10-16 05:03:07,491 INFO L185 Difference]: Start difference. First operand has 34 places, 20 transitions, 84 flow. Second operand 6 states and 507 transitions. [2020-10-16 05:03:07,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 30 transitions, 180 flow [2020-10-16 05:03:07,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 30 transitions, 174 flow, removed 1 selfloop flow, removed 2 redundant places. [2020-10-16 05:03:07,493 INFO L241 Difference]: Finished difference. Result has 38 places, 23 transitions, 134 flow [2020-10-16 05:03:07,493 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=134, PETRI_PLACES=38, PETRI_TRANSITIONS=23} [2020-10-16 05:03:07,494 INFO L342 CegarLoopForPetriNet]: 27 programPoint places, 11 predicate places. [2020-10-16 05:03:07,494 INFO L481 AbstractCegarLoop]: Abstraction has has 38 places, 23 transitions, 134 flow [2020-10-16 05:03:07,494 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 05:03:07,494 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:03:07,494 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:03:07,495 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 05:03:07,495 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:03:07,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:03:07,495 INFO L82 PathProgramCache]: Analyzing trace with hash 1334626881, now seen corresponding path program 1 times [2020-10-16 05:03:07,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:03:07,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842209744] [2020-10-16 05:03:07,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:03:07,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:03:07,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:03:07,589 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842209744] [2020-10-16 05:03:07,589 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:03:07,590 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 05:03:07,590 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454984991] [2020-10-16 05:03:07,590 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 05:03:07,590 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:03:07,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 05:03:07,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-16 05:03:07,595 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 113 [2020-10-16 05:03:07,596 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 23 transitions, 134 flow. Second operand 6 states. [2020-10-16 05:03:07,596 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:03:07,597 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 113 [2020-10-16 05:03:07,597 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:03:07,685 INFO L129 PetriNetUnfolder]: 7/32 cut-off events. [2020-10-16 05:03:07,685 INFO L130 PetriNetUnfolder]: For 90/124 co-relation queries the response was YES. [2020-10-16 05:03:07,686 INFO L80 FinitePrefix]: Finished finitePrefix Result has 139 conditions, 32 events. 7/32 cut-off events. For 90/124 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 47 event pairs, 0 based on Foata normal form. 16/47 useless extension candidates. Maximal degree in co-relation 124. Up to 20 conditions per place. [2020-10-16 05:03:07,686 INFO L132 encePairwiseOnDemand]: 107/113 looper letters, 2 selfloop transitions, 10 changer transitions 4/27 dead transitions. [2020-10-16 05:03:07,686 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 27 transitions, 202 flow [2020-10-16 05:03:07,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 05:03:07,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-16 05:03:07,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 585 transitions. [2020-10-16 05:03:07,691 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.7395701643489254 [2020-10-16 05:03:07,691 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 585 transitions. [2020-10-16 05:03:07,691 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 585 transitions. [2020-10-16 05:03:07,692 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:03:07,692 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 585 transitions. [2020-10-16 05:03:07,693 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 8 states. [2020-10-16 05:03:07,695 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 8 states. [2020-10-16 05:03:07,695 INFO L81 ComplementDD]: Finished complementDD. Result 8 states. [2020-10-16 05:03:07,695 INFO L185 Difference]: Start difference. First operand has 38 places, 23 transitions, 134 flow. Second operand 7 states and 585 transitions. [2020-10-16 05:03:07,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 27 transitions, 202 flow [2020-10-16 05:03:07,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 27 transitions, 166 flow, removed 14 selfloop flow, removed 4 redundant places. [2020-10-16 05:03:07,705 INFO L241 Difference]: Finished difference. Result has 41 places, 23 transitions, 136 flow [2020-10-16 05:03:07,706 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=136, PETRI_PLACES=41, PETRI_TRANSITIONS=23} [2020-10-16 05:03:07,706 INFO L342 CegarLoopForPetriNet]: 27 programPoint places, 14 predicate places. [2020-10-16 05:03:07,706 INFO L481 AbstractCegarLoop]: Abstraction has has 41 places, 23 transitions, 136 flow [2020-10-16 05:03:07,706 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 05:03:07,723 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:03:07,723 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:03:07,723 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 05:03:07,724 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:03:07,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:03:07,724 INFO L82 PathProgramCache]: Analyzing trace with hash 1041895041, now seen corresponding path program 1 times [2020-10-16 05:03:07,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:03:07,724 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647880569] [2020-10-16 05:03:07,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:03:07,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:03:07,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:03:07,785 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647880569] [2020-10-16 05:03:07,785 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:03:07,785 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 05:03:07,786 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121938814] [2020-10-16 05:03:07,786 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 05:03:07,786 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:03:07,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 05:03:07,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 05:03:07,788 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 113 [2020-10-16 05:03:07,788 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 23 transitions, 136 flow. Second operand 3 states. [2020-10-16 05:03:07,788 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:03:07,788 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 113 [2020-10-16 05:03:07,789 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:03:07,802 INFO L129 PetriNetUnfolder]: 5/25 cut-off events. [2020-10-16 05:03:07,807 INFO L130 PetriNetUnfolder]: For 46/53 co-relation queries the response was YES. [2020-10-16 05:03:07,808 INFO L80 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 25 events. 5/25 cut-off events. For 46/53 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 24 event pairs, 0 based on Foata normal form. 2/26 useless extension candidates. Maximal degree in co-relation 78. Up to 11 conditions per place. [2020-10-16 05:03:07,808 INFO L132 encePairwiseOnDemand]: 111/113 looper letters, 0 selfloop transitions, 0 changer transitions 22/22 dead transitions. [2020-10-16 05:03:07,808 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 22 transitions, 132 flow [2020-10-16 05:03:07,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 05:03:07,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 05:03:07,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 289 transitions. [2020-10-16 05:03:07,810 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8525073746312685 [2020-10-16 05:03:07,810 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 289 transitions. [2020-10-16 05:03:07,811 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 289 transitions. [2020-10-16 05:03:07,811 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:03:07,811 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 289 transitions. [2020-10-16 05:03:07,812 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 05:03:07,812 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 05:03:07,813 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 05:03:07,813 INFO L185 Difference]: Start difference. First operand has 41 places, 23 transitions, 136 flow. Second operand 3 states and 289 transitions. [2020-10-16 05:03:07,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 22 transitions, 132 flow [2020-10-16 05:03:07,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 22 transitions, 98 flow, removed 9 selfloop flow, removed 5 redundant places. [2020-10-16 05:03:07,815 INFO L241 Difference]: Finished difference. Result has 35 places, 0 transitions, 0 flow [2020-10-16 05:03:07,815 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=35, PETRI_TRANSITIONS=0} [2020-10-16 05:03:07,815 INFO L342 CegarLoopForPetriNet]: 27 programPoint places, 8 predicate places. [2020-10-16 05:03:07,815 INFO L481 AbstractCegarLoop]: Abstraction has has 35 places, 0 transitions, 0 flow [2020-10-16 05:03:07,816 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 05:03:07,816 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 05:03:07,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 05:03:07 BasicIcfg [2020-10-16 05:03:07,820 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 05:03:07,823 INFO L168 Benchmark]: Toolchain (without parser) took 4311.33 ms. Allocated memory was 251.7 MB in the beginning and 426.8 MB in the end (delta: 175.1 MB). Free memory was 204.3 MB in the beginning and 389.6 MB in the end (delta: -185.4 MB). There was no memory consumed. Max. memory is 14.2 GB. [2020-10-16 05:03:07,823 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 251.7 MB. Free memory is still 225.5 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-16 05:03:07,824 INFO L168 Benchmark]: CACSL2BoogieTranslator took 805.56 ms. Allocated memory was 251.7 MB in the beginning and 364.4 MB in the end (delta: 112.7 MB). Free memory was 204.3 MB in the beginning and 326.5 MB in the end (delta: -122.2 MB). Peak memory consumption was 21.4 MB. Max. memory is 14.2 GB. [2020-10-16 05:03:07,825 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.50 ms. Allocated memory is still 364.4 MB. Free memory is still 326.5 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-16 05:03:07,826 INFO L168 Benchmark]: Boogie Preprocessor took 25.01 ms. Allocated memory is still 364.4 MB. Free memory was 326.5 MB in the beginning and 322.9 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 14.2 GB. [2020-10-16 05:03:07,827 INFO L168 Benchmark]: RCFGBuilder took 438.45 ms. Allocated memory is still 364.4 MB. Free memory was 322.9 MB in the beginning and 301.6 MB in the end (delta: 21.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 14.2 GB. [2020-10-16 05:03:07,827 INFO L168 Benchmark]: TraceAbstraction took 2989.64 ms. Allocated memory was 364.4 MB in the beginning and 426.8 MB in the end (delta: 62.4 MB). Free memory was 297.9 MB in the beginning and 389.6 MB in the end (delta: -91.7 MB). There was no memory consumed. Max. memory is 14.2 GB. [2020-10-16 05:03:07,831 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 251.7 MB. Free memory is still 225.5 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 805.56 ms. Allocated memory was 251.7 MB in the beginning and 364.4 MB in the end (delta: 112.7 MB). Free memory was 204.3 MB in the beginning and 326.5 MB in the end (delta: -122.2 MB). Peak memory consumption was 21.4 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 46.50 ms. Allocated memory is still 364.4 MB. Free memory is still 326.5 MB. There was no memory consumed. Max. memory is 14.2 GB. * Boogie Preprocessor took 25.01 ms. Allocated memory is still 364.4 MB. Free memory was 326.5 MB in the beginning and 322.9 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 14.2 GB. * RCFGBuilder took 438.45 ms. Allocated memory is still 364.4 MB. Free memory was 322.9 MB in the beginning and 301.6 MB in the end (delta: 21.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 14.2 GB. * TraceAbstraction took 2989.64 ms. Allocated memory was 364.4 MB in the beginning and 426.8 MB in the end (delta: 62.4 MB). Free memory was 297.9 MB in the beginning and 389.6 MB in the end (delta: -91.7 MB). There was no memory consumed. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 609 VarBasedMoverChecksPositive, 43 VarBasedMoverChecksNegative, 7 SemBasedMoverChecksPositive, 36 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 95 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.4s, 65 PlacesBefore, 27 PlacesAfterwards, 56 TransitionsBefore, 18 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 5 FixpointIterations, 14 TrivialSequentialCompositions, 23 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 0 ChoiceCompositions, 43 TotalNumberOfCompositions, 1693 MoverChecksTotal - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 69 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 2.8s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 24 SDtfs, 11 SDslu, 13 SDs, 0 SdLazy, 101 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=136occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 99 NumberOfCodeBlocks, 99 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 3037 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...