/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe033_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 00:46:29,437 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 00:46:29,439 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 00:46:29,496 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-04-29 00:46:29,528 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 00:46:29,530 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 00:46:29,532 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 00:46:29,534 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 00:46:29,538 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 00:46:29,539 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 00:46:29,546 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 00:46:29,554 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 00:46:29,556 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 00:46:29,558 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 00:46:29,559 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 00:46:29,562 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 00:46:29,570 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-29 00:46:29,581 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 00:46:29,582 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 00:46:29,583 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 00:46:29,584 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-RepeatedSemanticLbeWithPredicates.epf [2021-04-29 00:46:29,637 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 00:46:29,637 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 00:46:29,641 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 00:46:29,641 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 00:46:29,641 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 00:46:29,642 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 00:46:29,642 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 00:46:29,642 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 00:46:29,642 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 00:46:29,643 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 00:46:29,644 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 00:46:29,644 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 00:46:29,644 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 00:46:29,645 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 00:46:29,645 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 00:46:29,645 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 00:46:29,645 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 00:46:29,646 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 00:46:29,646 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 00:46:29,646 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 00:46:29,646 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 00:46:29,647 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 00:46:29,647 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 00:46:29,647 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 00:46:29,647 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 00:46:29,648 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 00:46:29,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 00:46:29,648 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 00:46:29,648 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 00:46:29,648 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 00:46:29,649 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 00:46:30,062 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 00:46:30,109 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 00:46:30,112 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 00:46:30,114 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-29 00:46:30,114 INFO L275 PluginConnector]: CDTParser initialized [2021-04-29 00:46:30,115 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe033_tso.opt.i [2021-04-29 00:46:30,212 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0043bfa52/5fb0168c9f78497198758bc1cce87e11/FLAG70769e06b [2021-04-29 00:46:30,915 INFO L306 CDTParser]: Found 1 translation units. [2021-04-29 00:46:30,916 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe033_tso.opt.i [2021-04-29 00:46:30,939 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0043bfa52/5fb0168c9f78497198758bc1cce87e11/FLAG70769e06b [2021-04-29 00:46:31,199 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0043bfa52/5fb0168c9f78497198758bc1cce87e11 [2021-04-29 00:46:31,203 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 00:46:31,255 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-29 00:46:31,257 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-29 00:46:31,257 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-29 00:46:31,261 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-29 00:46:31,262 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:46:31" (1/1) ... [2021-04-29 00:46:31,263 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75800b8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:46:31, skipping insertion in model container [2021-04-29 00:46:31,263 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:46:31" (1/1) ... [2021-04-29 00:46:31,271 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-29 00:46:31,319 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-29 00:46:31,539 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe033_tso.opt.i[949,962] [2021-04-29 00:46:31,768 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:46:31,778 INFO L203 MainTranslator]: Completed pre-run [2021-04-29 00:46:31,792 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe033_tso.opt.i[949,962] [2021-04-29 00:46:31,821 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:46:31,922 INFO L208 MainTranslator]: Completed translation [2021-04-29 00:46:31,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:46:31 WrapperNode [2021-04-29 00:46:31,923 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-29 00:46:31,924 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 00:46:31,924 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 00:46:31,925 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 00:46:31,933 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:46:31" (1/1) ... [2021-04-29 00:46:31,949 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:46:31" (1/1) ... [2021-04-29 00:46:31,970 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 00:46:31,971 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 00:46:31,971 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 00:46:31,972 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 00:46:31,981 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:46:31" (1/1) ... [2021-04-29 00:46:31,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:46:31" (1/1) ... [2021-04-29 00:46:31,984 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:46:31" (1/1) ... [2021-04-29 00:46:31,985 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:46:31" (1/1) ... [2021-04-29 00:46:31,991 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:46:31" (1/1) ... [2021-04-29 00:46:31,993 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:46:31" (1/1) ... [2021-04-29 00:46:31,995 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:46:31" (1/1) ... [2021-04-29 00:46:31,998 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 00:46:31,999 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 00:46:31,999 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 00:46:31,999 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 00:46:32,000 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:46:31" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 00:46:32,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-29 00:46:32,087 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-29 00:46:32,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-29 00:46:32,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-29 00:46:32,089 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-29 00:46:32,090 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-29 00:46:32,090 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-29 00:46:32,091 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-29 00:46:32,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-29 00:46:32,091 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-29 00:46:32,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 00:46:32,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 00:46:32,093 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-29 00:46:32,443 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 00:46:32,443 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-04-29 00:46:32,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:46:32 BoogieIcfgContainer [2021-04-29 00:46:32,446 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 00:46:32,448 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 00:46:32,449 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 00:46:32,453 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 00:46:32,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 12:46:31" (1/3) ... [2021-04-29 00:46:32,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16b37485 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:46:32, skipping insertion in model container [2021-04-29 00:46:32,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:46:31" (2/3) ... [2021-04-29 00:46:32,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16b37485 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:46:32, skipping insertion in model container [2021-04-29 00:46:32,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:46:32" (3/3) ... [2021-04-29 00:46:32,457 INFO L111 eAbstractionObserver]: Analyzing ICFG safe033_tso.opt.i [2021-04-29 00:46:32,466 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 00:46:32,472 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-29 00:46:32,473 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 00:46:32,525 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:32,525 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:32,526 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:32,526 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:32,527 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:32,527 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:32,527 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:32,527 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:32,528 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:32,528 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:32,529 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:32,529 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:32,533 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:32,533 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:32,533 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:32,533 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:32,534 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:32,534 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:32,534 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:32,534 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:32,538 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:32,538 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:32,539 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:32,539 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:32,545 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:32,546 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:32,546 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:32,547 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:32,558 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:32,558 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:32,559 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:32,559 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:32,565 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 00:46:32,612 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-04-29 00:46:32,641 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 00:46:32,641 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 00:46:32,642 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 00:46:32,642 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 00:46:32,642 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 00:46:32,642 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 00:46:32,642 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 00:46:32,643 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 00:46:32,657 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 65 places, 60 transitions, 130 flow [2021-04-29 00:46:32,699 INFO L129 PetriNetUnfolder]: 2/58 cut-off events. [2021-04-29 00:46:32,699 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:46:32,707 INFO L84 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 58 events. 2/58 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 35 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2021-04-29 00:46:32,708 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 60 transitions, 130 flow [2021-04-29 00:46:32,717 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 54 places, 48 transitions, 102 flow [2021-04-29 00:46:32,722 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:46:32,747 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 48 transitions, 102 flow [2021-04-29 00:46:32,754 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 48 transitions, 102 flow [2021-04-29 00:46:32,758 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 48 transitions, 102 flow [2021-04-29 00:46:32,802 INFO L129 PetriNetUnfolder]: 1/48 cut-off events. [2021-04-29 00:46:32,803 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:46:32,803 INFO L84 FinitePrefix]: Finished finitePrefix Result has 55 conditions, 48 events. 1/48 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. 0/47 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2021-04-29 00:46:32,811 INFO L146 LiptonReduction]: Number of co-enabled transitions 456 [2021-04-29 00:46:36,553 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:46:36,698 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:46:38,637 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:46:39,031 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:46:39,179 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:46:39,476 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:46:39,672 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:46:39,851 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:46:40,299 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2021-04-29 00:46:40,535 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2021-04-29 00:46:40,731 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:46:40,892 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:46:41,116 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-04-29 00:46:41,387 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-04-29 00:46:41,591 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:46:41,748 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:46:41,923 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:46:42,096 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:46:42,172 INFO L158 LiptonReduction]: Checked pairs total: 3678 [2021-04-29 00:46:42,172 INFO L160 LiptonReduction]: Total number of compositions: 97 [2021-04-29 00:46:42,176 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9458 [2021-04-29 00:46:42,195 INFO L129 PetriNetUnfolder]: 0/52 cut-off events. [2021-04-29 00:46:42,195 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:46:42,195 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:46:42,196 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2021-04-29 00:46:42,197 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:46:42,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:46:42,203 INFO L82 PathProgramCache]: Analyzing trace with hash -751304854, now seen corresponding path program 1 times [2021-04-29 00:46:42,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:46:42,213 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166263917] [2021-04-29 00:46:42,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:46:42,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:46:42,485 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-04-29 00:46:42,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-29 00:46:42,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:46:42,505 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166263917] [2021-04-29 00:46:42,506 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:46:42,507 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 00:46:42,507 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793195452] [2021-04-29 00:46:42,520 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:46:42,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:46:42,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:46:42,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:46:42,546 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 157 [2021-04-29 00:46:42,554 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 61 transitions, 128 flow. Second operand has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:46:42,559 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:46:42,560 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 157 [2021-04-29 00:46:42,561 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:46:42,679 INFO L129 PetriNetUnfolder]: 47/229 cut-off events. [2021-04-29 00:46:42,679 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:46:42,681 INFO L84 FinitePrefix]: Finished finitePrefix Result has 354 conditions, 229 events. 47/229 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 1587 event pairs, 19 based on Foata normal form. 0/98 useless extension candidates. Maximal degree in co-relation 311. Up to 70 conditions per place. [2021-04-29 00:46:42,683 INFO L132 encePairwiseOnDemand]: 146/157 looper letters, 3 selfloop transitions, 4 changer transitions 38/68 dead transitions. [2021-04-29 00:46:42,683 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 68 transitions, 198 flow [2021-04-29 00:46:42,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:46:42,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:46:42,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 327 transitions. [2021-04-29 00:46:42,700 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6942675159235668 [2021-04-29 00:46:42,701 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 327 transitions. [2021-04-29 00:46:42,701 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 327 transitions. [2021-04-29 00:46:42,703 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:46:42,706 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 327 transitions. [2021-04-29 00:46:42,711 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:46:42,719 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 157.0) internal successors, (628), 4 states have internal predecessors, (628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:46:42,720 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 157.0) internal successors, (628), 4 states have internal predecessors, (628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:46:42,722 INFO L185 Difference]: Start difference. First operand has 68 places, 61 transitions, 128 flow. Second operand 3 states and 327 transitions. [2021-04-29 00:46:42,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 68 transitions, 198 flow [2021-04-29 00:46:42,726 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 68 transitions, 196 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 00:46:42,729 INFO L241 Difference]: Finished difference. Result has 70 places, 30 transitions, 86 flow [2021-04-29 00:46:42,731 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=70, PETRI_TRANSITIONS=30} [2021-04-29 00:46:42,732 INFO L343 CegarLoopForPetriNet]: 68 programPoint places, 2 predicate places. [2021-04-29 00:46:42,733 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:46:42,733 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 70 places, 30 transitions, 86 flow [2021-04-29 00:46:42,733 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 70 places, 30 transitions, 86 flow [2021-04-29 00:46:42,734 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 30 transitions, 86 flow [2021-04-29 00:46:42,742 INFO L129 PetriNetUnfolder]: 4/62 cut-off events. [2021-04-29 00:46:42,742 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-04-29 00:46:42,743 INFO L84 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 62 events. 4/62 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 303 event pairs, 2 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 87. Up to 13 conditions per place. [2021-04-29 00:46:42,744 INFO L146 LiptonReduction]: Number of co-enabled transitions 410 [2021-04-29 00:46:42,753 INFO L158 LiptonReduction]: Checked pairs total: 49 [2021-04-29 00:46:42,753 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:46:42,753 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 20 [2021-04-29 00:46:42,755 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 30 transitions, 86 flow [2021-04-29 00:46:42,756 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:46:42,756 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:46:42,756 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:46:42,757 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 00:46:42,757 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:46:42,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:46:42,757 INFO L82 PathProgramCache]: Analyzing trace with hash -1835900803, now seen corresponding path program 1 times [2021-04-29 00:46:42,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:46:42,758 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206931644] [2021-04-29 00:46:42,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:46:42,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:46:42,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:46:42,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:46:42,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:46:42,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 00:46:42,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:46:42,900 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206931644] [2021-04-29 00:46:42,900 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:46:42,900 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:46:42,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095265772] [2021-04-29 00:46:42,902 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:46:42,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:46:42,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:46:42,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:46:42,906 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 157 [2021-04-29 00:46:42,907 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 30 transitions, 86 flow. Second operand has 4 states, 4 states have (on average 89.75) internal successors, (359), 4 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:46:42,907 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:46:42,907 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 157 [2021-04-29 00:46:42,907 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:46:43,106 INFO L129 PetriNetUnfolder]: 592/1275 cut-off events. [2021-04-29 00:46:43,107 INFO L130 PetriNetUnfolder]: For 39/60 co-relation queries the response was YES. [2021-04-29 00:46:43,110 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2583 conditions, 1275 events. 592/1275 cut-off events. For 39/60 co-relation queries the response was YES. Maximal size of possible extension queue 513. Compared 11010 event pairs, 174 based on Foata normal form. 24/314 useless extension candidates. Maximal degree in co-relation 2572. Up to 805 conditions per place. [2021-04-29 00:46:43,113 INFO L132 encePairwiseOnDemand]: 142/157 looper letters, 18 selfloop transitions, 19 changer transitions 9/57 dead transitions. [2021-04-29 00:46:43,113 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 57 transitions, 232 flow [2021-04-29 00:46:43,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:46:43,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:46:43,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 489 transitions. [2021-04-29 00:46:43,118 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6229299363057325 [2021-04-29 00:46:43,119 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 489 transitions. [2021-04-29 00:46:43,119 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 489 transitions. [2021-04-29 00:46:43,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:46:43,120 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 489 transitions. [2021-04-29 00:46:43,122 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 97.8) internal successors, (489), 5 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:46:43,125 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 157.0) internal successors, (942), 6 states have internal predecessors, (942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:46:43,127 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 157.0) internal successors, (942), 6 states have internal predecessors, (942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:46:43,127 INFO L185 Difference]: Start difference. First operand has 37 places, 30 transitions, 86 flow. Second operand 5 states and 489 transitions. [2021-04-29 00:46:43,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 57 transitions, 232 flow [2021-04-29 00:46:43,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 57 transitions, 224 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 00:46:43,130 INFO L241 Difference]: Finished difference. Result has 42 places, 47 transitions, 220 flow [2021-04-29 00:46:43,131 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=220, PETRI_PLACES=42, PETRI_TRANSITIONS=47} [2021-04-29 00:46:43,131 INFO L343 CegarLoopForPetriNet]: 68 programPoint places, -26 predicate places. [2021-04-29 00:46:43,132 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:46:43,132 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 47 transitions, 220 flow [2021-04-29 00:46:43,132 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 47 transitions, 220 flow [2021-04-29 00:46:43,133 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 47 transitions, 220 flow [2021-04-29 00:46:43,221 INFO L129 PetriNetUnfolder]: 106/714 cut-off events. [2021-04-29 00:46:43,221 INFO L130 PetriNetUnfolder]: For 226/236 co-relation queries the response was YES. [2021-04-29 00:46:43,223 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1902 conditions, 714 events. 106/714 cut-off events. For 226/236 co-relation queries the response was YES. Maximal size of possible extension queue 315. Compared 8279 event pairs, 63 based on Foata normal form. 2/217 useless extension candidates. Maximal degree in co-relation 1890. Up to 546 conditions per place. [2021-04-29 00:46:43,230 INFO L146 LiptonReduction]: Number of co-enabled transitions 460 [2021-04-29 00:46:43,238 INFO L158 LiptonReduction]: Checked pairs total: 52 [2021-04-29 00:46:43,238 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:46:43,238 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 106 [2021-04-29 00:46:43,240 INFO L480 AbstractCegarLoop]: Abstraction has has 42 places, 47 transitions, 220 flow [2021-04-29 00:46:43,241 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 89.75) internal successors, (359), 4 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:46:43,241 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:46:43,241 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:46:43,241 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 00:46:43,241 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:46:43,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:46:43,242 INFO L82 PathProgramCache]: Analyzing trace with hash -1068108528, now seen corresponding path program 1 times [2021-04-29 00:46:43,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:46:43,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752229761] [2021-04-29 00:46:43,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:46:43,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:46:43,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:46:43,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:46:43,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:46:43,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:46:43,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:46:43,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 00:46:43,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:46:43,307 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752229761] [2021-04-29 00:46:43,308 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:46:43,308 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:46:43,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843792613] [2021-04-29 00:46:43,308 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:46:43,309 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:46:43,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:46:43,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:46:43,311 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 157 [2021-04-29 00:46:43,312 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 47 transitions, 220 flow. Second operand has 5 states, 5 states have (on average 89.8) internal successors, (449), 5 states have internal predecessors, (449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:46:43,313 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:46:43,313 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 157 [2021-04-29 00:46:43,313 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:46:43,542 INFO L129 PetriNetUnfolder]: 223/936 cut-off events. [2021-04-29 00:46:43,542 INFO L130 PetriNetUnfolder]: For 425/902 co-relation queries the response was YES. [2021-04-29 00:46:43,545 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3200 conditions, 936 events. 223/936 cut-off events. For 425/902 co-relation queries the response was YES. Maximal size of possible extension queue 471. Compared 10601 event pairs, 0 based on Foata normal form. 37/321 useless extension candidates. Maximal degree in co-relation 3186. Up to 612 conditions per place. [2021-04-29 00:46:43,547 INFO L132 encePairwiseOnDemand]: 142/157 looper letters, 4 selfloop transitions, 32 changer transitions 17/63 dead transitions. [2021-04-29 00:46:43,548 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 63 transitions, 391 flow [2021-04-29 00:46:43,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-29 00:46:43,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-29 00:46:43,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 670 transitions. [2021-04-29 00:46:43,551 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6096451319381255 [2021-04-29 00:46:43,551 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 670 transitions. [2021-04-29 00:46:43,551 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 670 transitions. [2021-04-29 00:46:43,552 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:46:43,552 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 670 transitions. [2021-04-29 00:46:43,555 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 95.71428571428571) internal successors, (670), 7 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:46:43,558 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 157.0) internal successors, (1256), 8 states have internal predecessors, (1256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:46:43,559 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 157.0) internal successors, (1256), 8 states have internal predecessors, (1256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:46:43,559 INFO L185 Difference]: Start difference. First operand has 42 places, 47 transitions, 220 flow. Second operand 7 states and 670 transitions. [2021-04-29 00:46:43,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 63 transitions, 391 flow [2021-04-29 00:46:43,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 63 transitions, 391 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-29 00:46:43,566 INFO L241 Difference]: Finished difference. Result has 51 places, 45 transitions, 315 flow [2021-04-29 00:46:43,567 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=315, PETRI_PLACES=51, PETRI_TRANSITIONS=45} [2021-04-29 00:46:43,567 INFO L343 CegarLoopForPetriNet]: 68 programPoint places, -17 predicate places. [2021-04-29 00:46:43,567 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:46:43,567 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 45 transitions, 315 flow [2021-04-29 00:46:43,568 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 45 transitions, 315 flow [2021-04-29 00:46:43,568 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 47 places, 45 transitions, 315 flow [2021-04-29 00:46:43,601 INFO L129 PetriNetUnfolder]: 28/293 cut-off events. [2021-04-29 00:46:43,601 INFO L130 PetriNetUnfolder]: For 658/845 co-relation queries the response was YES. [2021-04-29 00:46:43,603 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1170 conditions, 293 events. 28/293 cut-off events. For 658/845 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 2839 event pairs, 0 based on Foata normal form. 2/91 useless extension candidates. Maximal degree in co-relation 1153. Up to 192 conditions per place. [2021-04-29 00:46:43,606 INFO L146 LiptonReduction]: Number of co-enabled transitions 320 [2021-04-29 00:46:43,614 INFO L158 LiptonReduction]: Checked pairs total: 46 [2021-04-29 00:46:43,614 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:46:43,615 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 48 [2021-04-29 00:46:43,616 INFO L480 AbstractCegarLoop]: Abstraction has has 47 places, 45 transitions, 315 flow [2021-04-29 00:46:43,617 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 89.8) internal successors, (449), 5 states have internal predecessors, (449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:46:43,617 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:46:43,617 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:46:43,617 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-29 00:46:43,618 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:46:43,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:46:43,618 INFO L82 PathProgramCache]: Analyzing trace with hash -1655166540, now seen corresponding path program 1 times [2021-04-29 00:46:43,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:46:43,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128934854] [2021-04-29 00:46:43,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:46:43,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:46:43,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:46:43,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 00:46:43,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:46:43,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:46:43,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:46:43,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:46:43,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:46:43,667 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128934854] [2021-04-29 00:46:43,668 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:46:43,668 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:46:43,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477957084] [2021-04-29 00:46:43,668 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:46:43,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:46:43,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:46:43,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:46:43,671 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 157 [2021-04-29 00:46:43,672 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 45 transitions, 315 flow. Second operand has 4 states, 4 states have (on average 100.0) internal successors, (400), 4 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:46:43,672 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:46:43,672 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 157 [2021-04-29 00:46:43,672 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:46:43,731 INFO L129 PetriNetUnfolder]: 40/392 cut-off events. [2021-04-29 00:46:43,732 INFO L130 PetriNetUnfolder]: For 929/1184 co-relation queries the response was YES. [2021-04-29 00:46:43,733 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1549 conditions, 392 events. 40/392 cut-off events. For 929/1184 co-relation queries the response was YES. Maximal size of possible extension queue 198. Compared 4190 event pairs, 0 based on Foata normal form. 14/124 useless extension candidates. Maximal degree in co-relation 1538. Up to 264 conditions per place. [2021-04-29 00:46:43,734 INFO L132 encePairwiseOnDemand]: 154/157 looper letters, 0 selfloop transitions, 0 changer transitions 45/45 dead transitions. [2021-04-29 00:46:43,734 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 45 transitions, 317 flow [2021-04-29 00:46:43,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:46:43,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:46:43,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 401 transitions. [2021-04-29 00:46:43,737 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6385350318471338 [2021-04-29 00:46:43,737 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 401 transitions. [2021-04-29 00:46:43,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 401 transitions. [2021-04-29 00:46:43,737 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:46:43,738 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 401 transitions. [2021-04-29 00:46:43,739 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 100.25) internal successors, (401), 4 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:46:43,741 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 157.0) internal successors, (785), 5 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:46:43,742 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 157.0) internal successors, (785), 5 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:46:43,742 INFO L185 Difference]: Start difference. First operand has 47 places, 45 transitions, 315 flow. Second operand 4 states and 401 transitions. [2021-04-29 00:46:43,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 45 transitions, 317 flow [2021-04-29 00:46:43,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 45 transitions, 218 flow, removed 16 selfloop flow, removed 7 redundant places. [2021-04-29 00:46:43,753 INFO L241 Difference]: Finished difference. Result has 42 places, 0 transitions, 0 flow [2021-04-29 00:46:43,753 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=42, PETRI_TRANSITIONS=0} [2021-04-29 00:46:43,754 INFO L343 CegarLoopForPetriNet]: 68 programPoint places, -26 predicate places. [2021-04-29 00:46:43,754 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:46:43,754 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 0 transitions, 0 flow [2021-04-29 00:46:43,754 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 0 transitions, 0 flow [2021-04-29 00:46:43,755 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-29 00:46:43,755 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-29 00:46:43,755 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:46:43,755 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-04-29 00:46:43,755 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 00:46:43,755 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:46:43,756 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:46:43,756 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-04-29 00:46:43,757 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-29 00:46:43,758 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 100.0) internal successors, (400), 4 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:46:43,758 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-29 00:46:43,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 12:46:43 BasicIcfg [2021-04-29 00:46:43,763 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 00:46:43,764 INFO L168 Benchmark]: Toolchain (without parser) took 12558.06 ms. Allocated memory was 306.2 MB in the beginning and 450.9 MB in the end (delta: 144.7 MB). Free memory was 279.9 MB in the beginning and 304.8 MB in the end (delta: -24.9 MB). Peak memory consumption was 121.0 MB. Max. memory is 16.0 GB. [2021-04-29 00:46:43,765 INFO L168 Benchmark]: CDTParser took 0.78 ms. Allocated memory is still 306.2 MB. Free memory is still 274.2 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:46:43,766 INFO L168 Benchmark]: CACSL2BoogieTranslator took 666.46 ms. Allocated memory is still 306.2 MB. Free memory was 276.8 MB in the beginning and 275.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 24.5 MB. Max. memory is 16.0 GB. [2021-04-29 00:46:43,766 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.45 ms. Allocated memory is still 306.2 MB. Free memory was 275.5 MB in the beginning and 273.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:46:43,767 INFO L168 Benchmark]: Boogie Preprocessor took 27.06 ms. Allocated memory is still 306.2 MB. Free memory was 273.4 MB in the beginning and 272.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:46:43,768 INFO L168 Benchmark]: RCFGBuilder took 446.61 ms. Allocated memory is still 306.2 MB. Free memory was 272.3 MB in the beginning and 250.3 MB in the end (delta: 22.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2021-04-29 00:46:43,769 INFO L168 Benchmark]: TraceAbstraction took 11314.87 ms. Allocated memory was 306.2 MB in the beginning and 450.9 MB in the end (delta: 144.7 MB). Free memory was 249.2 MB in the beginning and 304.8 MB in the end (delta: -55.6 MB). Peak memory consumption was 88.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:46:43,772 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.78 ms. Allocated memory is still 306.2 MB. Free memory is still 274.2 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 666.46 ms. Allocated memory is still 306.2 MB. Free memory was 276.8 MB in the beginning and 275.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 24.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 46.45 ms. Allocated memory is still 306.2 MB. Free memory was 275.5 MB in the beginning and 273.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 27.06 ms. Allocated memory is still 306.2 MB. Free memory was 273.4 MB in the beginning and 272.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 446.61 ms. Allocated memory is still 306.2 MB. Free memory was 272.3 MB in the beginning and 250.3 MB in the end (delta: 22.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 11314.87 ms. Allocated memory was 306.2 MB in the beginning and 450.9 MB in the end (delta: 144.7 MB). Free memory was 249.2 MB in the beginning and 304.8 MB in the end (delta: -55.6 MB). Peak memory consumption was 88.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9418.2ms, 54 PlacesBefore, 68 PlacesAfterwards, 48 TransitionsBefore, 61 TransitionsAfterwards, 456 CoEnabledTransitionPairs, 7 FixpointIterations, 56 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 97 TotalNumberOfCompositions, 3678 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1059, positive: 903, positive conditional: 903, positive unconditional: 0, negative: 156, negative conditional: 156, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 489, positive: 452, positive conditional: 0, positive unconditional: 452, negative: 37, negative conditional: 0, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 489, positive: 452, positive conditional: 0, positive unconditional: 452, negative: 37, negative conditional: 0, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 489, positive: 445, positive conditional: 0, positive unconditional: 445, negative: 44, negative conditional: 0, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 44, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 37, negative conditional: 0, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 215, positive: 39, positive conditional: 0, positive unconditional: 39, negative: 176, negative conditional: 0, negative unconditional: 176, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1059, positive: 451, positive conditional: 451, positive unconditional: 0, negative: 119, negative conditional: 119, negative unconditional: 0, unknown: 489, unknown conditional: 489, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 484, Positive cache size: 447, Positive conditional cache size: 447, Positive unconditional cache size: 0, Negative cache size: 37, Negative conditional cache size: 37, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 19.9ms, 70 PlacesBefore, 37 PlacesAfterwards, 30 TransitionsBefore, 30 TransitionsAfterwards, 410 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 49 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 24, positive: 21, positive conditional: 21, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 1, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 1, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 24, positive: 19, positive conditional: 19, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 487, Positive cache size: 449, Positive conditional cache size: 449, Positive unconditional cache size: 0, Negative cache size: 38, Negative conditional cache size: 38, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 105.8ms, 42 PlacesBefore, 42 PlacesAfterwards, 47 TransitionsBefore, 47 TransitionsAfterwards, 460 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 52 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 40, positive: 38, positive conditional: 38, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 14, positive: 14, positive conditional: 7, positive unconditional: 7, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 14, positive: 14, positive conditional: 7, positive unconditional: 7, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 14, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 40, positive: 24, positive conditional: 24, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 14, unknown conditional: 14, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 501, Positive cache size: 463, Positive conditional cache size: 463, Positive unconditional cache size: 0, Negative cache size: 38, Negative conditional cache size: 38, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 46.8ms, 51 PlacesBefore, 47 PlacesAfterwards, 45 TransitionsBefore, 45 TransitionsAfterwards, 320 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 46 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 22, positive: 20, positive conditional: 20, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7, positive: 7, positive conditional: 7, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 7, positive: 7, positive conditional: 7, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 7, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 22, positive: 13, positive conditional: 13, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 7, unknown conditional: 7, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 508, Positive cache size: 470, Positive conditional cache size: 470, Positive unconditional cache size: 0, Negative cache size: 38, Negative conditional cache size: 38, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.3ms, 42 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 508, Positive cache size: 470, Positive conditional cache size: 470, Positive unconditional cache size: 0, Negative cache size: 38, Negative conditional cache size: 38, Negative unconditional cache size: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 59 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 11.3ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 11123.3ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 767.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9541.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 34 SDtfs, 30 SDslu, 6 SDs, 0 SdLazy, 143 SolverSat, 46 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 182.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 57.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=315occurred in iteration=3, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 12.5ms SsaConstructionTime, 123.6ms SatisfiabilityAnalysisTime, 313.2ms InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 120 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...