/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/safe022_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-16 05:07:23,026 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 05:07:23,030 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 05:07:23,069 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 05:07:23,069 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 05:07:23,077 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 05:07:23,080 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 05:07:23,084 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 05:07:23,086 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 05:07:23,090 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 05:07:23,091 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 05:07:23,092 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 05:07:23,092 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 05:07:23,096 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 05:07:23,097 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 05:07:23,098 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 05:07:23,100 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 05:07:23,101 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 05:07:23,102 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 05:07:23,110 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 05:07:23,112 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 05:07:23,113 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 05:07:23,114 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 05:07:23,115 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 05:07:23,126 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 05:07:23,127 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 05:07:23,129 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 05:07:23,130 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 05:07:23,130 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 05:07:23,134 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 05:07:23,135 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 05:07:23,135 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 05:07:23,136 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 05:07:23,137 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 05:07:23,141 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 05:07:23,141 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 05:07:23,142 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 05:07:23,142 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 05:07:23,142 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 05:07:23,143 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 05:07:23,146 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 05:07:23,146 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 05:07:23,181 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 05:07:23,181 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 05:07:23,183 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 05:07:23,183 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 05:07:23,183 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 05:07:23,183 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 05:07:23,184 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 05:07:23,184 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 05:07:23,184 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 05:07:23,184 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 05:07:23,185 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 05:07:23,185 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 05:07:23,186 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 05:07:23,186 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 05:07:23,186 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 05:07:23,186 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 05:07:23,186 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 05:07:23,187 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 05:07:23,187 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 05:07:23,187 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 05:07:23,187 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 05:07:23,188 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 05:07:23,188 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 05:07:23,188 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-16 05:07:23,188 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 05:07:23,188 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 05:07:23,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 05:07:23,189 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-16 05:07:23,189 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-16 05:07:23,468 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 05:07:23,479 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 05:07:23,482 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 05:07:23,484 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 05:07:23,484 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 05:07:23,485 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe022_tso.opt.i [2020-10-16 05:07:23,559 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/811497e38/ef690a6473654486bf2944b2b56c97c1/FLAGc92f3b636 [2020-10-16 05:07:24,092 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 05:07:24,093 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe022_tso.opt.i [2020-10-16 05:07:24,107 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/811497e38/ef690a6473654486bf2944b2b56c97c1/FLAGc92f3b636 [2020-10-16 05:07:24,363 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/811497e38/ef690a6473654486bf2944b2b56c97c1 [2020-10-16 05:07:24,371 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 05:07:24,373 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 05:07:24,374 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 05:07:24,374 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 05:07:24,378 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 05:07:24,380 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:07:24" (1/1) ... [2020-10-16 05:07:24,383 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7229de7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:07:24, skipping insertion in model container [2020-10-16 05:07:24,383 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:07:24" (1/1) ... [2020-10-16 05:07:24,392 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 05:07:24,445 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 05:07:25,031 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 05:07:25,046 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 05:07:25,104 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 05:07:25,201 INFO L208 MainTranslator]: Completed translation [2020-10-16 05:07:25,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:07:25 WrapperNode [2020-10-16 05:07:25,203 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 05:07:25,204 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 05:07:25,204 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 05:07:25,204 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 05:07:25,213 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:07:25" (1/1) ... [2020-10-16 05:07:25,230 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:07:25" (1/1) ... [2020-10-16 05:07:25,252 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 05:07:25,253 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 05:07:25,253 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 05:07:25,253 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 05:07:25,260 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:07:25" (1/1) ... [2020-10-16 05:07:25,260 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:07:25" (1/1) ... [2020-10-16 05:07:25,263 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:07:25" (1/1) ... [2020-10-16 05:07:25,264 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:07:25" (1/1) ... [2020-10-16 05:07:25,270 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:07:25" (1/1) ... [2020-10-16 05:07:25,272 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:07:25" (1/1) ... [2020-10-16 05:07:25,274 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:07:25" (1/1) ... [2020-10-16 05:07:25,277 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 05:07:25,277 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 05:07:25,278 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 05:07:25,278 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 05:07:25,279 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:07:25" (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 05:07:25,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 05:07:25,352 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 05:07:25,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 05:07:25,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 05:07:25,352 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 05:07:25,352 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 05:07:25,352 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 05:07:25,353 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 05:07:25,353 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 05:07:25,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 05:07:25,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 05:07:25,355 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 05:07:25,690 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 05:07:25,690 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 05:07:25,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:07:25 BoogieIcfgContainer [2020-10-16 05:07:25,693 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 05:07:25,694 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 05:07:25,694 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 05:07:25,698 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 05:07:25,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 05:07:24" (1/3) ... [2020-10-16 05:07:25,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9866024 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:07:25, skipping insertion in model container [2020-10-16 05:07:25,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:07:25" (2/3) ... [2020-10-16 05:07:25,700 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9866024 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:07:25, skipping insertion in model container [2020-10-16 05:07:25,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:07:25" (3/3) ... [2020-10-16 05:07:25,702 INFO L111 eAbstractionObserver]: Analyzing ICFG safe022_tso.opt.i [2020-10-16 05:07:25,713 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-16 05:07:25,720 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 05:07:25,721 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 05:07:25,746 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:07:25,747 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:07:25,747 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:07:25,747 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:07:25,748 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:07:25,748 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:07:25,749 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:07:25,749 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:07:25,749 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:07:25,749 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:07:25,750 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:07:25,750 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:07:25,754 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:07:25,754 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:07:25,754 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:07:25,754 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:07:25,763 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:07:25,763 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:07:25,763 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:07:25,764 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:07:25,789 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-16 05:07:25,808 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 05:07:25,808 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-16 05:07:25,808 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 05:07:25,808 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 05:07:25,809 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 05:07:25,809 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 05:07:25,809 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 05:07:25,809 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 05:07:25,820 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 61 places, 56 transitions, 122 flow [2020-10-16 05:07:25,863 INFO L129 PetriNetUnfolder]: 2/54 cut-off events. [2020-10-16 05:07:25,864 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 05:07:25,869 INFO L80 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 54 events. 2/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2020-10-16 05:07:25,869 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 56 transitions, 122 flow [2020-10-16 05:07:25,875 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 51 places, 45 transitions, 96 flow [2020-10-16 05:07:25,877 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 05:07:25,880 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 45 transitions, 96 flow [2020-10-16 05:07:25,883 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 45 transitions, 96 flow [2020-10-16 05:07:25,883 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 51 places, 45 transitions, 96 flow [2020-10-16 05:07:25,897 INFO L129 PetriNetUnfolder]: 1/45 cut-off events. [2020-10-16 05:07:25,898 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 05:07:25,898 INFO L80 FinitePrefix]: Finished finitePrefix Result has 52 conditions, 45 events. 1/45 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 33 event pairs, 0 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2020-10-16 05:07:25,900 INFO L117 LiptonReduction]: Number of co-enabled transitions 456 [2020-10-16 05:07:27,027 INFO L132 LiptonReduction]: Checked pairs total: 878 [2020-10-16 05:07:27,027 INFO L134 LiptonReduction]: Total number of compositions: 37 [2020-10-16 05:07:27,030 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1155 [2020-10-16 05:07:27,036 INFO L129 PetriNetUnfolder]: 0/9 cut-off events. [2020-10-16 05:07:27,037 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 05:07:27,037 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:07:27,038 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-16 05:07:27,038 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:07:27,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:07:27,044 INFO L82 PathProgramCache]: Analyzing trace with hash 1644539286, now seen corresponding path program 1 times [2020-10-16 05:07:27,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:07:27,055 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128281910] [2020-10-16 05:07:27,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:07:27,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:07:27,257 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 05:07:27,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128281910] [2020-10-16 05:07:27,259 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:07:27,259 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 05:07:27,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263415498] [2020-10-16 05:07:27,272 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 05:07:27,273 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:07:27,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 05:07:27,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 05:07:27,292 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 93 [2020-10-16 05:07:27,293 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 12 transitions, 30 flow. Second operand 3 states. [2020-10-16 05:07:27,294 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:07:27,294 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 93 [2020-10-16 05:07:27,296 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:07:27,317 INFO L129 PetriNetUnfolder]: 0/12 cut-off events. [2020-10-16 05:07:27,317 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 05:07:27,317 INFO L80 FinitePrefix]: Finished finitePrefix Result has 23 conditions, 12 events. 0/12 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 13 event pairs, 0 based on Foata normal form. 1/13 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2020-10-16 05:07:27,318 INFO L132 encePairwiseOnDemand]: 90/93 looper letters, 1 selfloop transitions, 2 changer transitions 0/12 dead transitions. [2020-10-16 05:07:27,319 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 12 transitions, 36 flow [2020-10-16 05:07:27,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 05:07:27,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 05:07:27,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 226 transitions. [2020-10-16 05:07:27,336 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8100358422939068 [2020-10-16 05:07:27,337 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 226 transitions. [2020-10-16 05:07:27,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 226 transitions. [2020-10-16 05:07:27,340 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:07:27,343 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 226 transitions. [2020-10-16 05:07:27,347 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 05:07:27,353 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 05:07:27,353 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 05:07:27,356 INFO L185 Difference]: Start difference. First operand has 19 places, 12 transitions, 30 flow. Second operand 3 states and 226 transitions. [2020-10-16 05:07:27,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 12 transitions, 36 flow [2020-10-16 05:07:27,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 12 transitions, 34 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-16 05:07:27,362 INFO L241 Difference]: Finished difference. Result has 20 places, 12 transitions, 36 flow [2020-10-16 05:07:27,366 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=36, PETRI_PLACES=20, PETRI_TRANSITIONS=12} [2020-10-16 05:07:27,367 INFO L342 CegarLoopForPetriNet]: 19 programPoint places, 1 predicate places. [2020-10-16 05:07:27,367 INFO L481 AbstractCegarLoop]: Abstraction has has 20 places, 12 transitions, 36 flow [2020-10-16 05:07:27,367 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 05:07:27,367 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:07:27,367 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:07:27,368 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 05:07:27,368 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:07:27,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:07:27,369 INFO L82 PathProgramCache]: Analyzing trace with hash -558890290, now seen corresponding path program 1 times [2020-10-16 05:07:27,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:07:27,369 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733172639] [2020-10-16 05:07:27,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:07:27,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:07:27,446 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 05:07:27,446 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733172639] [2020-10-16 05:07:27,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:07:27,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 05:07:27,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068234561] [2020-10-16 05:07:27,450 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 05:07:27,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:07:27,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 05:07:27,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 05:07:27,454 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 93 [2020-10-16 05:07:27,454 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 12 transitions, 36 flow. Second operand 4 states. [2020-10-16 05:07:27,455 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:07:27,455 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 93 [2020-10-16 05:07:27,455 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:07:27,496 INFO L129 PetriNetUnfolder]: 0/17 cut-off events. [2020-10-16 05:07:27,497 INFO L130 PetriNetUnfolder]: For 4/6 co-relation queries the response was YES. [2020-10-16 05:07:27,499 INFO L80 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 17 events. 0/17 cut-off events. For 4/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 28 event pairs, 0 based on Foata normal form. 3/20 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2020-10-16 05:07:27,499 INFO L132 encePairwiseOnDemand]: 89/93 looper letters, 1 selfloop transitions, 3 changer transitions 1/13 dead transitions. [2020-10-16 05:07:27,499 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 13 transitions, 51 flow [2020-10-16 05:07:27,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 05:07:27,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 05:07:27,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 279 transitions. [2020-10-16 05:07:27,504 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.75 [2020-10-16 05:07:27,505 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 279 transitions. [2020-10-16 05:07:27,505 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 279 transitions. [2020-10-16 05:07:27,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:07:27,508 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 279 transitions. [2020-10-16 05:07:27,509 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 05:07:27,512 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 05:07:27,513 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 05:07:27,513 INFO L185 Difference]: Start difference. First operand has 20 places, 12 transitions, 36 flow. Second operand 4 states and 279 transitions. [2020-10-16 05:07:27,513 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 13 transitions, 51 flow [2020-10-16 05:07:27,514 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 13 transitions, 45 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-16 05:07:27,515 INFO L241 Difference]: Finished difference. Result has 23 places, 12 transitions, 46 flow [2020-10-16 05:07:27,515 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=46, PETRI_PLACES=23, PETRI_TRANSITIONS=12} [2020-10-16 05:07:27,516 INFO L342 CegarLoopForPetriNet]: 19 programPoint places, 4 predicate places. [2020-10-16 05:07:27,516 INFO L481 AbstractCegarLoop]: Abstraction has has 23 places, 12 transitions, 46 flow [2020-10-16 05:07:27,516 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 05:07:27,516 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:07:27,517 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:07:27,517 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 05:07:27,517 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:07:27,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:07:27,518 INFO L82 PathProgramCache]: Analyzing trace with hash -222609709, now seen corresponding path program 1 times [2020-10-16 05:07:27,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:07:27,518 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792768013] [2020-10-16 05:07:27,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:07:27,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:07:27,609 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 05:07:27,610 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792768013] [2020-10-16 05:07:27,610 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:07:27,610 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 05:07:27,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400791350] [2020-10-16 05:07:27,611 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 05:07:27,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:07:27,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 05:07:27,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 05:07:27,613 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 93 [2020-10-16 05:07:27,614 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 12 transitions, 46 flow. Second operand 4 states. [2020-10-16 05:07:27,614 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:07:27,614 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 93 [2020-10-16 05:07:27,614 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:07:27,645 INFO L129 PetriNetUnfolder]: 6/27 cut-off events. [2020-10-16 05:07:27,646 INFO L130 PetriNetUnfolder]: For 33/35 co-relation queries the response was YES. [2020-10-16 05:07:27,646 INFO L80 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 27 events. 6/27 cut-off events. For 33/35 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 51 event pairs, 0 based on Foata normal form. 5/30 useless extension candidates. Maximal degree in co-relation 60. Up to 11 conditions per place. [2020-10-16 05:07:27,647 INFO L132 encePairwiseOnDemand]: 88/93 looper letters, 5 selfloop transitions, 4 changer transitions 1/17 dead transitions. [2020-10-16 05:07:27,647 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 17 transitions, 76 flow [2020-10-16 05:07:27,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 05:07:27,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 05:07:27,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 288 transitions. [2020-10-16 05:07:27,650 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.7741935483870968 [2020-10-16 05:07:27,650 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 288 transitions. [2020-10-16 05:07:27,650 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 288 transitions. [2020-10-16 05:07:27,650 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:07:27,651 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 288 transitions. [2020-10-16 05:07:27,652 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 05:07:27,653 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 05:07:27,653 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 05:07:27,653 INFO L185 Difference]: Start difference. First operand has 23 places, 12 transitions, 46 flow. Second operand 4 states and 288 transitions. [2020-10-16 05:07:27,653 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 17 transitions, 76 flow [2020-10-16 05:07:27,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 17 transitions, 64 flow, removed 2 selfloop flow, removed 4 redundant places. [2020-10-16 05:07:27,655 INFO L241 Difference]: Finished difference. Result has 24 places, 14 transitions, 60 flow [2020-10-16 05:07:27,655 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=60, PETRI_PLACES=24, PETRI_TRANSITIONS=14} [2020-10-16 05:07:27,655 INFO L342 CegarLoopForPetriNet]: 19 programPoint places, 5 predicate places. [2020-10-16 05:07:27,656 INFO L481 AbstractCegarLoop]: Abstraction has has 24 places, 14 transitions, 60 flow [2020-10-16 05:07:27,656 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 05:07:27,656 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:07:27,656 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:07:27,656 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 05:07:27,657 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:07:27,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:07:27,657 INFO L82 PathProgramCache]: Analyzing trace with hash -2051674651, now seen corresponding path program 1 times [2020-10-16 05:07:27,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:07:27,658 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000290444] [2020-10-16 05:07:27,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:07:27,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:07:27,725 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 05:07:27,726 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000290444] [2020-10-16 05:07:27,726 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:07:27,726 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 05:07:27,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660550388] [2020-10-16 05:07:27,728 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 05:07:27,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:07:27,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 05:07:27,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 05:07:27,731 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 93 [2020-10-16 05:07:27,731 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 14 transitions, 60 flow. Second operand 5 states. [2020-10-16 05:07:27,732 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:07:27,732 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 93 [2020-10-16 05:07:27,732 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:07:27,773 INFO L129 PetriNetUnfolder]: 2/18 cut-off events. [2020-10-16 05:07:27,773 INFO L130 PetriNetUnfolder]: For 17/23 co-relation queries the response was YES. [2020-10-16 05:07:27,773 INFO L80 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 18 events. 2/18 cut-off events. For 17/23 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 15 event pairs, 0 based on Foata normal form. 5/22 useless extension candidates. Maximal degree in co-relation 47. Up to 8 conditions per place. [2020-10-16 05:07:27,774 INFO L132 encePairwiseOnDemand]: 88/93 looper letters, 1 selfloop transitions, 6 changer transitions 1/15 dead transitions. [2020-10-16 05:07:27,774 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 15 transitions, 81 flow [2020-10-16 05:07:27,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 05:07:27,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-16 05:07:27,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 355 transitions. [2020-10-16 05:07:27,776 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.7634408602150538 [2020-10-16 05:07:27,776 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 355 transitions. [2020-10-16 05:07:27,777 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 355 transitions. [2020-10-16 05:07:27,777 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:07:27,777 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 355 transitions. [2020-10-16 05:07:27,778 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-16 05:07:27,779 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-16 05:07:27,779 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-16 05:07:27,779 INFO L185 Difference]: Start difference. First operand has 24 places, 14 transitions, 60 flow. Second operand 5 states and 355 transitions. [2020-10-16 05:07:27,780 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 15 transitions, 81 flow [2020-10-16 05:07:27,781 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 15 transitions, 72 flow, removed 1 selfloop flow, removed 2 redundant places. [2020-10-16 05:07:27,781 INFO L241 Difference]: Finished difference. Result has 28 places, 14 transitions, 76 flow [2020-10-16 05:07:27,782 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=53, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=76, PETRI_PLACES=28, PETRI_TRANSITIONS=14} [2020-10-16 05:07:27,782 INFO L342 CegarLoopForPetriNet]: 19 programPoint places, 9 predicate places. [2020-10-16 05:07:27,782 INFO L481 AbstractCegarLoop]: Abstraction has has 28 places, 14 transitions, 76 flow [2020-10-16 05:07:27,782 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 05:07:27,782 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:07:27,783 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:07:27,783 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 05:07:27,783 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:07:27,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:07:27,783 INFO L82 PathProgramCache]: Analyzing trace with hash 26722434, now seen corresponding path program 1 times [2020-10-16 05:07:27,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:07:27,784 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629561814] [2020-10-16 05:07:27,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:07:27,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:07:27,821 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 05:07:27,821 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629561814] [2020-10-16 05:07:27,822 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:07:27,822 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 05:07:27,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097766514] [2020-10-16 05:07:27,823 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 05:07:27,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:07:27,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 05:07:27,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 05:07:27,826 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 93 [2020-10-16 05:07:27,826 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 14 transitions, 76 flow. Second operand 4 states. [2020-10-16 05:07:27,827 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:07:27,827 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 93 [2020-10-16 05:07:27,827 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:07:27,842 INFO L129 PetriNetUnfolder]: 1/13 cut-off events. [2020-10-16 05:07:27,842 INFO L130 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2020-10-16 05:07:27,842 INFO L80 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 13 events. 1/13 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 6 event pairs, 0 based on Foata normal form. 1/14 useless extension candidates. Maximal degree in co-relation 31. Up to 5 conditions per place. [2020-10-16 05:07:27,843 INFO L132 encePairwiseOnDemand]: 90/93 looper letters, 0 selfloop transitions, 0 changer transitions 13/13 dead transitions. [2020-10-16 05:07:27,843 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 13 transitions, 72 flow [2020-10-16 05:07:27,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 05:07:27,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 05:07:27,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 280 transitions. [2020-10-16 05:07:27,845 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.7526881720430108 [2020-10-16 05:07:27,845 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 280 transitions. [2020-10-16 05:07:27,845 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 280 transitions. [2020-10-16 05:07:27,845 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:07:27,846 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 280 transitions. [2020-10-16 05:07:27,846 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 05:07:27,847 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 05:07:27,847 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 05:07:27,848 INFO L185 Difference]: Start difference. First operand has 28 places, 14 transitions, 76 flow. Second operand 4 states and 280 transitions. [2020-10-16 05:07:27,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 13 transitions, 72 flow [2020-10-16 05:07:27,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 13 transitions, 46 flow, removed 2 selfloop flow, removed 8 redundant places. [2020-10-16 05:07:27,849 INFO L241 Difference]: Finished difference. Result has 22 places, 0 transitions, 0 flow [2020-10-16 05:07:27,849 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=22, PETRI_TRANSITIONS=0} [2020-10-16 05:07:27,850 INFO L342 CegarLoopForPetriNet]: 19 programPoint places, 3 predicate places. [2020-10-16 05:07:27,850 INFO L481 AbstractCegarLoop]: Abstraction has has 22 places, 0 transitions, 0 flow [2020-10-16 05:07:27,850 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 05:07:27,850 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 05:07:27,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 05:07:27 BasicIcfg [2020-10-16 05:07:27,855 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 05:07:27,858 INFO L168 Benchmark]: Toolchain (without parser) took 3483.88 ms. Allocated memory was 252.2 MB in the beginning and 358.6 MB in the end (delta: 106.4 MB). Free memory was 206.4 MB in the beginning and 176.8 MB in the end (delta: 29.7 MB). Peak memory consumption was 136.1 MB. Max. memory is 14.2 GB. [2020-10-16 05:07:27,858 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 252.2 MB. Free memory is still 228.6 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-16 05:07:27,859 INFO L168 Benchmark]: CACSL2BoogieTranslator took 829.08 ms. Allocated memory was 252.2 MB in the beginning and 319.3 MB in the end (delta: 67.1 MB). Free memory was 206.4 MB in the beginning and 270.2 MB in the end (delta: -63.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 14.2 GB. [2020-10-16 05:07:27,860 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.58 ms. Allocated memory is still 319.3 MB. Free memory was 270.2 MB in the beginning and 267.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-16 05:07:27,861 INFO L168 Benchmark]: Boogie Preprocessor took 24.57 ms. Allocated memory is still 319.3 MB. Free memory is still 267.7 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-16 05:07:27,862 INFO L168 Benchmark]: RCFGBuilder took 415.50 ms. Allocated memory is still 319.3 MB. Free memory was 267.7 MB in the beginning and 245.9 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 14.2 GB. [2020-10-16 05:07:27,863 INFO L168 Benchmark]: TraceAbstraction took 2160.99 ms. Allocated memory was 319.3 MB in the beginning and 358.6 MB in the end (delta: 39.3 MB). Free memory was 245.9 MB in the beginning and 176.8 MB in the end (delta: 69.1 MB). Peak memory consumption was 108.4 MB. Max. memory is 14.2 GB. [2020-10-16 05:07:27,867 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 252.2 MB. Free memory is still 228.6 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 829.08 ms. Allocated memory was 252.2 MB in the beginning and 319.3 MB in the end (delta: 67.1 MB). Free memory was 206.4 MB in the beginning and 270.2 MB in the end (delta: -63.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 48.58 ms. Allocated memory is still 319.3 MB. Free memory was 270.2 MB in the beginning and 267.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 24.57 ms. Allocated memory is still 319.3 MB. Free memory is still 267.7 MB. There was no memory consumed. Max. memory is 14.2 GB. * RCFGBuilder took 415.50 ms. Allocated memory is still 319.3 MB. Free memory was 267.7 MB in the beginning and 245.9 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 14.2 GB. * TraceAbstraction took 2160.99 ms. Allocated memory was 319.3 MB in the beginning and 358.6 MB in the end (delta: 39.3 MB). Free memory was 245.9 MB in the beginning and 176.8 MB in the end (delta: 69.1 MB). Peak memory consumption was 108.4 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 315 VarBasedMoverChecksPositive, 27 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 25 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 35 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.1s, 51 PlacesBefore, 19 PlacesAfterwards, 45 TransitionsBefore, 12 TransitionsAfterwards, 456 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 37 TotalNumberOfCompositions, 878 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 3 procedures, 55 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: 2.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.2s, HoareTripleCheckerStatistics: 13 SDtfs, 4 SDslu, 7 SDs, 0 SdLazy, 32 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=76occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 937 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...