/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-New_States.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-12 12:27:11,058 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-12 12:27:11,062 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-12 12:27:11,106 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-12 12:27:11,107 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-12 12:27:11,112 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-12 12:27:11,115 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-12 12:27:11,124 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-12 12:27:11,128 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-12 12:27:11,135 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-12 12:27:11,137 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-12 12:27:11,138 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-12 12:27:11,139 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-12 12:27:11,142 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-12 12:27:11,144 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-12 12:27:11,146 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-12 12:27:11,147 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-12 12:27:11,151 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-12 12:27:11,159 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-12 12:27:11,167 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-12 12:27:11,170 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-12 12:27:11,172 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-12 12:27:11,174 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-12 12:27:11,177 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-12 12:27:11,186 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-12 12:27:11,192 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-12 12:27:11,193 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-12 12:27:11,196 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-12 12:27:11,197 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-12 12:27:11,198 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-12 12:27:11,198 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-12 12:27:11,199 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-12 12:27:11,200 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-12 12:27:11,200 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-12 12:27:11,201 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-12 12:27:11,202 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-12 12:27:11,203 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-FA-NoLbe-New_States.epf [2020-11-12 12:27:11,266 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-12 12:27:11,267 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-12 12:27:11,271 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-12 12:27:11,271 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-12 12:27:11,272 INFO L138 SettingsManager]: * Use SBE=true [2020-11-12 12:27:11,272 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-12 12:27:11,272 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-12 12:27:11,273 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-12 12:27:11,273 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-12 12:27:11,273 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-12 12:27:11,275 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-12 12:27:11,275 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-12 12:27:11,275 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-12 12:27:11,276 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-12 12:27:11,276 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-12 12:27:11,276 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-12 12:27:11,276 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-12 12:27:11,277 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-12 12:27:11,277 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-12 12:27:11,277 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-12 12:27:11,278 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-12 12:27:11,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 12:27:11,279 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-12 12:27:11,279 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-12 12:27:11,279 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-12 12:27:11,280 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-12 12:27:11,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-12 12:27:11,280 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-12 12:27:11,280 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-12 12:27:11,281 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-12 12:27:11,281 INFO L138 SettingsManager]: * Sleep set reduction in concurrent analysis=NEW_STATES 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-12 12:27:11,720 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-12 12:27:11,748 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-12 12:27:11,751 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-12 12:27:11,752 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-12 12:27:11,753 INFO L275 PluginConnector]: CDTParser initialized [2020-11-12 12:27:11,755 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.opt.i [2020-11-12 12:27:11,830 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cec6373b5/9d50dfe2d3a2451989336e4504d325e7/FLAG4925fa2b2 [2020-11-12 12:27:12,562 INFO L306 CDTParser]: Found 1 translation units. [2020-11-12 12:27:12,563 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe030_tso.opt.i [2020-11-12 12:27:12,580 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cec6373b5/9d50dfe2d3a2451989336e4504d325e7/FLAG4925fa2b2 [2020-11-12 12:27:12,790 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cec6373b5/9d50dfe2d3a2451989336e4504d325e7 [2020-11-12 12:27:12,795 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-12 12:27:12,803 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-12 12:27:12,808 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-12 12:27:12,808 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-12 12:27:12,812 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-12 12:27:12,814 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:27:12" (1/1) ... [2020-11-12 12:27:12,820 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@255d2455 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:27:12, skipping insertion in model container [2020-11-12 12:27:12,820 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:27:12" (1/1) ... [2020-11-12 12:27:12,830 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-12 12:27:12,903 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-12 12:27:13,382 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 12:27:13,393 INFO L203 MainTranslator]: Completed pre-run [2020-11-12 12:27:13,439 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 12:27:13,550 INFO L208 MainTranslator]: Completed translation [2020-11-12 12:27:13,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:27:13 WrapperNode [2020-11-12 12:27:13,550 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-12 12:27:13,552 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-12 12:27:13,552 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-12 12:27:13,552 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-12 12:27:13,561 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:27:13" (1/1) ... [2020-11-12 12:27:13,578 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:27:13" (1/1) ... [2020-11-12 12:27:13,602 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-12 12:27:13,603 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-12 12:27:13,603 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-12 12:27:13,604 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-12 12:27:13,613 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:27:13" (1/1) ... [2020-11-12 12:27:13,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:27:13" (1/1) ... [2020-11-12 12:27:13,617 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:27:13" (1/1) ... [2020-11-12 12:27:13,617 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:27:13" (1/1) ... [2020-11-12 12:27:13,624 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:27:13" (1/1) ... [2020-11-12 12:27:13,643 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:27:13" (1/1) ... [2020-11-12 12:27:13,647 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:27:13" (1/1) ... [2020-11-12 12:27:13,655 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-12 12:27:13,656 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-12 12:27:13,656 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-12 12:27:13,656 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-12 12:27:13,660 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:27:13" (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 [2020-11-12 12:27:13,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-12 12:27:13,764 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-12 12:27:13,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-12 12:27:13,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-12 12:27:13,764 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-12 12:27:13,764 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-12 12:27:13,764 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-12 12:27:13,765 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-12 12:27:13,765 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-12 12:27:13,765 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-12 12:27:13,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-12 12:27:13,765 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-12 12:27:13,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-12 12:27:13,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-12 12:27:13,767 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-12 12:27:14,265 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-12 12:27:14,265 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-12 12:27:14,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:27:14 BoogieIcfgContainer [2020-11-12 12:27:14,268 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-12 12:27:14,270 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-12 12:27:14,270 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-12 12:27:14,273 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-12 12:27:14,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:27:12" (1/3) ... [2020-11-12 12:27:14,275 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23d76a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:27:14, skipping insertion in model container [2020-11-12 12:27:14,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:27:13" (2/3) ... [2020-11-12 12:27:14,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23d76a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:27:14, skipping insertion in model container [2020-11-12 12:27:14,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:27:14" (3/3) ... [2020-11-12 12:27:14,277 INFO L111 eAbstractionObserver]: Analyzing ICFG safe030_tso.opt.i [2020-11-12 12:27:14,294 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-12 12:27:14,294 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-12 12:27:14,298 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-12 12:27:14,299 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-12 12:27:14,335 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:14,335 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:14,335 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:14,335 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:14,336 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:14,336 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:14,336 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:14,336 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:14,337 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:14,337 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:14,337 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:14,337 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:14,338 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:14,338 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:14,338 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:14,338 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:14,339 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:14,339 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:14,339 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:14,339 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:14,340 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:14,340 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:14,340 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:14,340 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:14,341 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:14,341 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:14,341 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:14,341 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:14,341 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:14,342 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:14,342 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:14,342 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:14,342 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:14,343 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:14,343 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:14,343 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:14,345 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:14,346 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:14,346 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:14,346 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:14,356 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:14,357 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:14,357 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:14,357 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:14,360 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:14,360 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:14,361 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:14,361 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:14,363 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-12 12:27:14,376 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-12 12:27:14,401 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-12 12:27:14,401 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-12 12:27:14,401 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-12 12:27:14,401 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-12 12:27:14,402 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-12 12:27:14,402 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-12 12:27:14,402 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-12 12:27:14,402 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-12 12:27:14,415 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 84 places, 77 transitions, 169 flow [2020-11-12 12:27:15,688 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9846 states, 9844 states have (on average 3.615197074360016) internal successors, (35588), 9845 states have internal predecessors, (35588), 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) [2020-11-12 12:27:16,689 WARN L455 BasicCegarLoop]: Sleep Set Reduction Time: 997ms [2020-11-12 12:27:16,796 WARN L456 BasicCegarLoop]: Sleep set: input automaton has 9846 states, 9844 states have (on average 3.615197074360016) internal successors, (35588), 9845 states have internal predecessors, (35588), 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) [2020-11-12 12:27:16,925 WARN L457 BasicCegarLoop]: Sleep set: output automaton has 34392 states, 31455 states have (on average 1.2038467652201559) internal successors, (37867), 34391 states have internal predecessors, (37867), 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) [2020-11-12 12:27:16,989 INFO L276 IsEmpty]: Start isEmpty. Operand has 34392 states, 31455 states have (on average 1.2038467652201559) internal successors, (37867), 34391 states have internal predecessors, (37867), 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) [2020-11-12 12:27:17,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-11-12 12:27:17,082 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:27:17,083 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:27:17,090 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:27:17,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:27:17,119 INFO L82 PathProgramCache]: Analyzing trace with hash -1260626285, now seen corresponding path program 1 times [2020-11-12 12:27:17,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:27:17,160 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077853666] [2020-11-12 12:27:17,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:27:17,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:27:17,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:27:17,687 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077853666] [2020-11-12 12:27:17,688 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:27:17,689 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:27:17,690 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343093568] [2020-11-12 12:27:17,695 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:27:17,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:27:17,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:27:17,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:27:17,783 INFO L87 Difference]: Start difference. First operand has 34392 states, 31455 states have (on average 1.2038467652201559) internal successors, (37867), 34391 states have internal predecessors, (37867), 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) Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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) [2020-11-12 12:27:18,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:27:18,290 INFO L93 Difference]: Finished difference Result 14921 states and 17149 transitions. [2020-11-12 12:27:18,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 12:27:18,292 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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) Word has length 40 [2020-11-12 12:27:18,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:27:18,339 INFO L225 Difference]: With dead ends: 14921 [2020-11-12 12:27:18,339 INFO L226 Difference]: Without dead ends: 5547 [2020-11-12 12:27:18,340 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:27:18,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5547 states. [2020-11-12 12:27:18,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5547 to 5547. [2020-11-12 12:27:18,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5547 states, 5246 states have (on average 1.3166221883339688) internal successors, (6907), 5546 states have internal predecessors, (6907), 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) [2020-11-12 12:27:18,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5547 states to 5547 states and 6907 transitions. [2020-11-12 12:27:18,815 INFO L78 Accepts]: Start accepts. Automaton has 5547 states and 6907 transitions. Word has length 40 [2020-11-12 12:27:18,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:27:18,816 INFO L481 AbstractCegarLoop]: Abstraction has 5547 states and 6907 transitions. [2020-11-12 12:27:18,817 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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) [2020-11-12 12:27:18,817 INFO L276 IsEmpty]: Start isEmpty. Operand 5547 states and 6907 transitions. [2020-11-12 12:27:18,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-11-12 12:27:18,832 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:27:18,832 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:27:18,832 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-12 12:27:18,832 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:27:18,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:27:18,833 INFO L82 PathProgramCache]: Analyzing trace with hash 2024610516, now seen corresponding path program 1 times [2020-11-12 12:27:18,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:27:18,834 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424825006] [2020-11-12 12:27:18,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:27:18,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:27:19,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:27:19,055 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424825006] [2020-11-12 12:27:19,055 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:27:19,055 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:27:19,055 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244458780] [2020-11-12 12:27:19,058 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:27:19,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:27:19,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:27:19,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:27:19,061 INFO L87 Difference]: Start difference. First operand 5547 states and 6907 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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) [2020-11-12 12:27:19,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:27:19,301 INFO L93 Difference]: Finished difference Result 6364 states and 7860 transitions. [2020-11-12 12:27:19,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-12 12:27:19,302 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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) Word has length 42 [2020-11-12 12:27:19,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:27:19,325 INFO L225 Difference]: With dead ends: 6364 [2020-11-12 12:27:19,326 INFO L226 Difference]: Without dead ends: 5017 [2020-11-12 12:27:19,327 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:27:19,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5017 states. [2020-11-12 12:27:19,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5017 to 5017. [2020-11-12 12:27:19,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5017 states, 4746 states have (on average 1.3120522545301307) internal successors, (6227), 5016 states have internal predecessors, (6227), 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) [2020-11-12 12:27:19,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5017 states to 5017 states and 6227 transitions. [2020-11-12 12:27:19,529 INFO L78 Accepts]: Start accepts. Automaton has 5017 states and 6227 transitions. Word has length 42 [2020-11-12 12:27:19,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:27:19,529 INFO L481 AbstractCegarLoop]: Abstraction has 5017 states and 6227 transitions. [2020-11-12 12:27:19,530 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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) [2020-11-12 12:27:19,530 INFO L276 IsEmpty]: Start isEmpty. Operand 5017 states and 6227 transitions. [2020-11-12 12:27:19,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-11-12 12:27:19,540 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:27:19,540 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:27:19,541 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-12 12:27:19,541 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:27:19,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:27:19,542 INFO L82 PathProgramCache]: Analyzing trace with hash 55793164, now seen corresponding path program 1 times [2020-11-12 12:27:19,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:27:19,543 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022135844] [2020-11-12 12:27:19,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:27:19,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:27:19,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:27:19,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022135844] [2020-11-12 12:27:19,769 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:27:19,769 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:27:19,770 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154160046] [2020-11-12 12:27:19,771 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:27:19,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:27:19,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:27:19,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:27:19,774 INFO L87 Difference]: Start difference. First operand 5017 states and 6227 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 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) [2020-11-12 12:27:20,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:27:20,038 INFO L93 Difference]: Finished difference Result 8303 states and 10202 transitions. [2020-11-12 12:27:20,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-12 12:27:20,039 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 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) Word has length 43 [2020-11-12 12:27:20,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:27:20,063 INFO L225 Difference]: With dead ends: 8303 [2020-11-12 12:27:20,063 INFO L226 Difference]: Without dead ends: 5120 [2020-11-12 12:27:20,064 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:27:20,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5120 states. [2020-11-12 12:27:20,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5120 to 4050. [2020-11-12 12:27:20,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4050 states, 3835 states have (on average 1.3183833116036505) internal successors, (5056), 4049 states have internal predecessors, (5056), 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) [2020-11-12 12:27:20,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4050 states to 4050 states and 5056 transitions. [2020-11-12 12:27:20,272 INFO L78 Accepts]: Start accepts. Automaton has 4050 states and 5056 transitions. Word has length 43 [2020-11-12 12:27:20,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:27:20,273 INFO L481 AbstractCegarLoop]: Abstraction has 4050 states and 5056 transitions. [2020-11-12 12:27:20,273 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 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) [2020-11-12 12:27:20,273 INFO L276 IsEmpty]: Start isEmpty. Operand 4050 states and 5056 transitions. [2020-11-12 12:27:20,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-11-12 12:27:20,285 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:27:20,286 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:27:20,286 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-12 12:27:20,286 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:27:20,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:27:20,289 INFO L82 PathProgramCache]: Analyzing trace with hash 1009491699, now seen corresponding path program 1 times [2020-11-12 12:27:20,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:27:20,290 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771163179] [2020-11-12 12:27:20,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:27:20,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:27:20,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:27:20,470 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771163179] [2020-11-12 12:27:20,470 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:27:20,470 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:27:20,471 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61080050] [2020-11-12 12:27:20,471 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:27:20,471 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:27:20,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:27:20,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:27:20,472 INFO L87 Difference]: Start difference. First operand 4050 states and 5056 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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) [2020-11-12 12:27:20,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:27:20,683 INFO L93 Difference]: Finished difference Result 4487 states and 5465 transitions. [2020-11-12 12:27:20,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-12 12:27:20,684 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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) Word has length 44 [2020-11-12 12:27:20,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:27:20,704 INFO L225 Difference]: With dead ends: 4487 [2020-11-12 12:27:20,704 INFO L226 Difference]: Without dead ends: 3867 [2020-11-12 12:27:20,705 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:27:20,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3867 states. [2020-11-12 12:27:20,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3867 to 3867. [2020-11-12 12:27:20,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3867 states, 3662 states have (on average 1.307209175314036) internal successors, (4787), 3866 states have internal predecessors, (4787), 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) [2020-11-12 12:27:20,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3867 states to 3867 states and 4787 transitions. [2020-11-12 12:27:20,821 INFO L78 Accepts]: Start accepts. Automaton has 3867 states and 4787 transitions. Word has length 44 [2020-11-12 12:27:20,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:27:20,821 INFO L481 AbstractCegarLoop]: Abstraction has 3867 states and 4787 transitions. [2020-11-12 12:27:20,821 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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) [2020-11-12 12:27:20,822 INFO L276 IsEmpty]: Start isEmpty. Operand 3867 states and 4787 transitions. [2020-11-12 12:27:20,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-11-12 12:27:20,830 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:27:20,830 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:27:20,830 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-12 12:27:20,830 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:27:20,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:27:20,831 INFO L82 PathProgramCache]: Analyzing trace with hash -568704029, now seen corresponding path program 1 times [2020-11-12 12:27:20,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:27:20,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444394195] [2020-11-12 12:27:20,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:27:20,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:27:20,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:27:20,968 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444394195] [2020-11-12 12:27:20,968 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:27:20,968 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:27:20,968 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372685319] [2020-11-12 12:27:20,969 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:27:20,969 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:27:20,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:27:20,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:27:20,970 INFO L87 Difference]: Start difference. First operand 3867 states and 4787 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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) [2020-11-12 12:27:21,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:27:21,265 INFO L93 Difference]: Finished difference Result 6635 states and 7889 transitions. [2020-11-12 12:27:21,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-12 12:27:21,267 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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) Word has length 45 [2020-11-12 12:27:21,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:27:21,285 INFO L225 Difference]: With dead ends: 6635 [2020-11-12 12:27:21,285 INFO L226 Difference]: Without dead ends: 4101 [2020-11-12 12:27:21,285 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:27:21,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4101 states. [2020-11-12 12:27:21,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4101 to 3205. [2020-11-12 12:27:21,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3205 states, 3040 states have (on average 1.2911184210526316) internal successors, (3925), 3204 states have internal predecessors, (3925), 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) [2020-11-12 12:27:21,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3205 states to 3205 states and 3925 transitions. [2020-11-12 12:27:21,370 INFO L78 Accepts]: Start accepts. Automaton has 3205 states and 3925 transitions. Word has length 45 [2020-11-12 12:27:21,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:27:21,371 INFO L481 AbstractCegarLoop]: Abstraction has 3205 states and 3925 transitions. [2020-11-12 12:27:21,371 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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) [2020-11-12 12:27:21,371 INFO L276 IsEmpty]: Start isEmpty. Operand 3205 states and 3925 transitions. [2020-11-12 12:27:21,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-11-12 12:27:21,377 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:27:21,377 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:27:21,377 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-12 12:27:21,377 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:27:21,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:27:21,378 INFO L82 PathProgramCache]: Analyzing trace with hash 1057344015, now seen corresponding path program 1 times [2020-11-12 12:27:21,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:27:21,378 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338620468] [2020-11-12 12:27:21,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:27:21,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:27:21,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:27:21,507 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338620468] [2020-11-12 12:27:21,508 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:27:21,508 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:27:21,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782236005] [2020-11-12 12:27:21,508 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:27:21,509 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:27:21,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:27:21,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:27:21,510 INFO L87 Difference]: Start difference. First operand 3205 states and 3925 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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) [2020-11-12 12:27:21,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:27:21,737 INFO L93 Difference]: Finished difference Result 4750 states and 5584 transitions. [2020-11-12 12:27:21,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-12 12:27:21,738 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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) Word has length 45 [2020-11-12 12:27:21,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:27:21,749 INFO L225 Difference]: With dead ends: 4750 [2020-11-12 12:27:21,749 INFO L226 Difference]: Without dead ends: 2471 [2020-11-12 12:27:21,750 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:27:21,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2471 states. [2020-11-12 12:27:21,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2471 to 1863. [2020-11-12 12:27:21,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1863 states, 1738 states have (on average 1.2836593785960875) internal successors, (2231), 1862 states have internal predecessors, (2231), 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) [2020-11-12 12:27:21,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1863 states to 1863 states and 2231 transitions. [2020-11-12 12:27:21,816 INFO L78 Accepts]: Start accepts. Automaton has 1863 states and 2231 transitions. Word has length 45 [2020-11-12 12:27:21,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:27:21,817 INFO L481 AbstractCegarLoop]: Abstraction has 1863 states and 2231 transitions. [2020-11-12 12:27:21,817 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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) [2020-11-12 12:27:21,817 INFO L276 IsEmpty]: Start isEmpty. Operand 1863 states and 2231 transitions. [2020-11-12 12:27:21,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-11-12 12:27:21,820 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:27:21,820 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:27:21,820 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-12 12:27:21,820 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:27:21,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:27:21,821 INFO L82 PathProgramCache]: Analyzing trace with hash -847047564, now seen corresponding path program 1 times [2020-11-12 12:27:21,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:27:21,822 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919704404] [2020-11-12 12:27:21,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:27:21,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:27:21,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:27:21,969 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919704404] [2020-11-12 12:27:21,970 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:27:21,970 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:27:21,970 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276053953] [2020-11-12 12:27:21,971 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:27:21,971 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:27:21,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:27:21,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:27:21,972 INFO L87 Difference]: Start difference. First operand 1863 states and 2231 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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) [2020-11-12 12:27:22,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:27:22,134 INFO L93 Difference]: Finished difference Result 1945 states and 2214 transitions. [2020-11-12 12:27:22,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 12:27:22,134 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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) Word has length 46 [2020-11-12 12:27:22,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:27:22,142 INFO L225 Difference]: With dead ends: 1945 [2020-11-12 12:27:22,142 INFO L226 Difference]: Without dead ends: 1674 [2020-11-12 12:27:22,143 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:27:22,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1674 states. [2020-11-12 12:27:22,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1674 to 1674. [2020-11-12 12:27:22,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1674 states, 1557 states have (on average 1.24791265253693) internal successors, (1943), 1673 states have internal predecessors, (1943), 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) [2020-11-12 12:27:22,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1674 states to 1674 states and 1943 transitions. [2020-11-12 12:27:22,180 INFO L78 Accepts]: Start accepts. Automaton has 1674 states and 1943 transitions. Word has length 46 [2020-11-12 12:27:22,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:27:22,180 INFO L481 AbstractCegarLoop]: Abstraction has 1674 states and 1943 transitions. [2020-11-12 12:27:22,180 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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) [2020-11-12 12:27:22,180 INFO L276 IsEmpty]: Start isEmpty. Operand 1674 states and 1943 transitions. [2020-11-12 12:27:22,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-11-12 12:27:22,183 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:27:22,183 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:27:22,184 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-12 12:27:22,184 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:27:22,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:27:22,184 INFO L82 PathProgramCache]: Analyzing trace with hash 1267731509, now seen corresponding path program 1 times [2020-11-12 12:27:22,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:27:22,185 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786318238] [2020-11-12 12:27:22,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:27:22,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:27:22,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:27:22,314 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786318238] [2020-11-12 12:27:22,315 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:27:22,315 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:27:22,315 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572216010] [2020-11-12 12:27:22,315 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:27:22,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:27:22,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:27:22,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:27:22,317 INFO L87 Difference]: Start difference. First operand 1674 states and 1943 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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) [2020-11-12 12:27:22,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:27:22,474 INFO L93 Difference]: Finished difference Result 1342 states and 1422 transitions. [2020-11-12 12:27:22,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 12:27:22,475 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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) Word has length 48 [2020-11-12 12:27:22,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:27:22,478 INFO L225 Difference]: With dead ends: 1342 [2020-11-12 12:27:22,479 INFO L226 Difference]: Without dead ends: 969 [2020-11-12 12:27:22,479 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-11-12 12:27:22,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 969 states. [2020-11-12 12:27:22,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 969 to 969. [2020-11-12 12:27:22,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 969 states, 888 states have (on average 1.1509009009009008) internal successors, (1022), 968 states have internal predecessors, (1022), 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) [2020-11-12 12:27:22,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 969 states to 969 states and 1022 transitions. [2020-11-12 12:27:22,500 INFO L78 Accepts]: Start accepts. Automaton has 969 states and 1022 transitions. Word has length 48 [2020-11-12 12:27:22,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:27:22,501 INFO L481 AbstractCegarLoop]: Abstraction has 969 states and 1022 transitions. [2020-11-12 12:27:22,501 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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) [2020-11-12 12:27:22,501 INFO L276 IsEmpty]: Start isEmpty. Operand 969 states and 1022 transitions. [2020-11-12 12:27:22,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-11-12 12:27:22,503 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:27:22,503 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:27:22,503 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-12 12:27:22,503 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:27:22,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:27:22,504 INFO L82 PathProgramCache]: Analyzing trace with hash -17296300, now seen corresponding path program 1 times [2020-11-12 12:27:22,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:27:22,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821601360] [2020-11-12 12:27:22,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:27:22,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:27:22,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:27:22,661 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821601360] [2020-11-12 12:27:22,661 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:27:22,661 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-12 12:27:22,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006374320] [2020-11-12 12:27:22,663 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-12 12:27:22,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:27:22,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-12 12:27:22,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-12 12:27:22,665 INFO L87 Difference]: Start difference. First operand 969 states and 1022 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 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) [2020-11-12 12:27:22,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:27:22,786 INFO L93 Difference]: Finished difference Result 302 states and 301 transitions. [2020-11-12 12:27:22,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-12 12:27:22,786 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 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) Word has length 50 [2020-11-12 12:27:22,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:27:22,787 INFO L225 Difference]: With dead ends: 302 [2020-11-12 12:27:22,787 INFO L226 Difference]: Without dead ends: 0 [2020-11-12 12:27:22,787 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-11-12 12:27:22,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-12 12:27:22,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-12 12:27:22,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2020-11-12 12:27:22,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-12 12:27:22,788 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 50 [2020-11-12 12:27:22,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:27:22,788 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-12 12:27:22,788 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 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) [2020-11-12 12:27:22,788 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-12 12:27:22,789 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-12 12:27:22,789 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-12 12:27:22,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:27:22 BasicIcfg [2020-11-12 12:27:22,796 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-12 12:27:22,799 INFO L168 Benchmark]: Toolchain (without parser) took 10000.29 ms. Allocated memory was 302.0 MB in the beginning and 1.2 GB in the end (delta: 895.5 MB). Free memory was 277.1 MB in the beginning and 954.5 MB in the end (delta: -677.4 MB). Peak memory consumption was 220.7 MB. Max. memory is 16.0 GB. [2020-11-12 12:27:22,800 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 302.0 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 12:27:22,801 INFO L168 Benchmark]: CACSL2BoogieTranslator took 742.82 ms. Allocated memory is still 302.0 MB. Free memory was 276.6 MB in the beginning and 245.9 MB in the end (delta: 30.6 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2020-11-12 12:27:22,802 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.92 ms. Allocated memory is still 302.0 MB. Free memory was 245.9 MB in the beginning and 243.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 12:27:22,802 INFO L168 Benchmark]: Boogie Preprocessor took 51.68 ms. Allocated memory is still 302.0 MB. Free memory was 243.9 MB in the beginning and 284.8 MB in the end (delta: -40.9 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.0 GB. [2020-11-12 12:27:22,807 INFO L168 Benchmark]: RCFGBuilder took 612.32 ms. Allocated memory is still 302.0 MB. Free memory was 284.8 MB in the beginning and 262.6 MB in the end (delta: 22.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2020-11-12 12:27:22,809 INFO L168 Benchmark]: TraceAbstraction took 8526.27 ms. Allocated memory was 302.0 MB in the beginning and 1.2 GB in the end (delta: 895.5 MB). Free memory was 262.6 MB in the beginning and 954.5 MB in the end (delta: -691.9 MB). Peak memory consumption was 203.6 MB. Max. memory is 16.0 GB. [2020-11-12 12:27:22,819 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 302.0 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 742.82 ms. Allocated memory is still 302.0 MB. Free memory was 276.6 MB in the beginning and 245.9 MB in the end (delta: 30.6 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 50.92 ms. Allocated memory is still 302.0 MB. Free memory was 245.9 MB in the beginning and 243.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 51.68 ms. Allocated memory is still 302.0 MB. Free memory was 243.9 MB in the beginning and 284.8 MB in the end (delta: -40.9 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.0 GB. * RCFGBuilder took 612.32 ms. Allocated memory is still 302.0 MB. Free memory was 284.8 MB in the beginning and 262.6 MB in the end (delta: 22.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 8526.27 ms. Allocated memory was 302.0 MB in the beginning and 1.2 GB in the end (delta: 895.5 MB). Free memory was 262.6 MB in the beginning and 954.5 MB in the end (delta: -691.9 MB). Peak memory consumption was 203.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 75 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.3s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.5s, HoareTripleCheckerStatistics: 630 SDtfs, 724 SDslu, 2182 SDs, 0 SdLazy, 219 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 104 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34392occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 2574 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 403 NumberOfCodeBlocks, 403 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 394 ConstructedInterpolants, 0 QuantifiedInterpolants, 45712 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...