/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/safe008_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-12 12:16:52,045 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-12 12:16:52,048 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-12 12:16:52,115 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-12 12:16:52,116 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-12 12:16:52,125 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-12 12:16:52,127 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-12 12:16:52,131 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-12 12:16:52,139 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-12 12:16:52,142 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-12 12:16:52,144 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-12 12:16:52,147 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-12 12:16:52,147 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-12 12:16:52,149 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-12 12:16:52,151 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-12 12:16:52,158 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-12 12:16:52,160 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-12 12:16:52,162 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-12 12:16:52,167 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-12 12:16:52,174 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-12 12:16:52,179 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-12 12:16:52,180 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-12 12:16:52,182 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-12 12:16:52,185 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-12 12:16:52,195 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-12 12:16:52,196 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-12 12:16:52,196 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-12 12:16:52,201 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-12 12:16:52,201 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-12 12:16:52,203 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-12 12:16:52,203 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-12 12:16:52,204 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-12 12:16:52,206 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-12 12:16:52,207 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-12 12:16:52,208 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-12 12:16:52,209 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-12 12:16:52,210 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-12 12:16:52,210 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-12 12:16:52,210 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-12 12:16:52,211 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-12 12:16:52,212 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-12 12:16:52,213 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 12:16:52,270 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-12 12:16:52,271 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-12 12:16:52,275 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-12 12:16:52,276 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-12 12:16:52,276 INFO L138 SettingsManager]: * Use SBE=true [2020-11-12 12:16:52,276 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-12 12:16:52,276 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-12 12:16:52,277 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-12 12:16:52,277 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-12 12:16:52,277 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-12 12:16:52,278 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-12 12:16:52,279 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-12 12:16:52,279 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-12 12:16:52,279 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-12 12:16:52,279 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-12 12:16:52,279 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-12 12:16:52,280 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-12 12:16:52,280 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-12 12:16:52,280 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-12 12:16:52,280 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-12 12:16:52,281 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-12 12:16:52,281 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 12:16:52,281 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-12 12:16:52,281 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-12 12:16:52,282 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-12 12:16:52,282 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-12 12:16:52,282 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-12 12:16:52,282 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-12 12:16:52,282 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-12 12:16:52,283 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-12 12:16:52,283 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-12 12:16:52,719 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-12 12:16:52,750 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-12 12:16:52,753 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-12 12:16:52,755 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-12 12:16:52,760 INFO L275 PluginConnector]: CDTParser initialized [2020-11-12 12:16:52,761 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe008_tso.opt.i [2020-11-12 12:16:52,849 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ad003040/82db6285d941453b807bc4da2d61b2fb/FLAG9c6075307 [2020-11-12 12:16:53,508 INFO L306 CDTParser]: Found 1 translation units. [2020-11-12 12:16:53,509 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe008_tso.opt.i [2020-11-12 12:16:53,524 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ad003040/82db6285d941453b807bc4da2d61b2fb/FLAG9c6075307 [2020-11-12 12:16:53,540 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ad003040/82db6285d941453b807bc4da2d61b2fb [2020-11-12 12:16:53,544 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-12 12:16:53,554 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-12 12:16:53,556 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-12 12:16:53,557 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-12 12:16:53,561 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-12 12:16:53,561 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:16:53" (1/1) ... [2020-11-12 12:16:53,566 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50082dd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:16:53, skipping insertion in model container [2020-11-12 12:16:53,566 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:16:53" (1/1) ... [2020-11-12 12:16:53,575 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-12 12:16:53,644 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-12 12:16:54,187 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 12:16:54,233 INFO L203 MainTranslator]: Completed pre-run [2020-11-12 12:16:54,326 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 12:16:54,453 INFO L208 MainTranslator]: Completed translation [2020-11-12 12:16:54,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:16:54 WrapperNode [2020-11-12 12:16:54,454 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-12 12:16:54,457 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-12 12:16:54,457 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-12 12:16:54,457 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-12 12:16:54,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:16:54" (1/1) ... [2020-11-12 12:16:54,512 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:16:54" (1/1) ... [2020-11-12 12:16:54,551 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-12 12:16:54,552 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-12 12:16:54,552 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-12 12:16:54,552 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-12 12:16:54,562 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:16:54" (1/1) ... [2020-11-12 12:16:54,563 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:16:54" (1/1) ... [2020-11-12 12:16:54,578 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:16:54" (1/1) ... [2020-11-12 12:16:54,578 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:16:54" (1/1) ... [2020-11-12 12:16:54,596 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:16:54" (1/1) ... [2020-11-12 12:16:54,601 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:16:54" (1/1) ... [2020-11-12 12:16:54,603 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:16:54" (1/1) ... [2020-11-12 12:16:54,611 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-12 12:16:54,613 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-12 12:16:54,613 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-12 12:16:54,613 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-12 12:16:54,614 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:16:54" (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 12:16:54,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-12 12:16:54,711 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-12 12:16:54,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-12 12:16:54,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-12 12:16:54,712 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-12 12:16:54,713 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-12 12:16:54,714 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-12 12:16:54,714 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-12 12:16:54,715 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-12 12:16:54,715 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-12 12:16:54,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-12 12:16:54,715 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-12 12:16:54,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-12 12:16:54,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-12 12:16:54,717 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 12:16:55,208 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-12 12:16:55,209 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-12 12:16:55,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:16:55 BoogieIcfgContainer [2020-11-12 12:16:55,211 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-12 12:16:55,213 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-12 12:16:55,213 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-12 12:16:55,217 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-12 12:16:55,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:16:53" (1/3) ... [2020-11-12 12:16:55,218 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5984f9d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:16:55, skipping insertion in model container [2020-11-12 12:16:55,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:16:54" (2/3) ... [2020-11-12 12:16:55,218 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5984f9d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:16:55, skipping insertion in model container [2020-11-12 12:16:55,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:16:55" (3/3) ... [2020-11-12 12:16:55,220 INFO L111 eAbstractionObserver]: Analyzing ICFG safe008_tso.opt.i [2020-11-12 12:16:55,236 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-12 12:16:55,237 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-12 12:16:55,241 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-12 12:16:55,242 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-12 12:16:55,271 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:55,272 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:55,272 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:55,272 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:55,272 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:55,273 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:55,273 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:55,273 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:55,273 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:55,274 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:55,274 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:55,274 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:55,275 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:55,275 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:55,275 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:55,275 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:55,275 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:55,276 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:55,276 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:55,276 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:55,276 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:55,276 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:55,277 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:55,277 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:55,277 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:55,278 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:55,278 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:55,278 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:55,278 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:55,278 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:55,278 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:55,279 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:55,279 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:55,279 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:55,279 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:55,280 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:55,282 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:55,283 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:55,283 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:55,283 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:55,291 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:55,291 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:55,291 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:55,292 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:55,295 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:55,295 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:55,295 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:55,295 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:55,298 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-12 12:16:55,312 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-12 12:16:55,336 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-12 12:16:55,336 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-12 12:16:55,336 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-12 12:16:55,336 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-12 12:16:55,337 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-12 12:16:55,337 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-12 12:16:55,337 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-12 12:16:55,337 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-12 12:16:55,350 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 86 places, 79 transitions, 173 flow [2020-11-12 12:16:56,167 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 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 12:16:57,152 WARN L455 BasicCegarLoop]: Sleep Set Reduction Time: 981ms [2020-11-12 12:16:57,198 WARN L456 BasicCegarLoop]: Sleep set: input automaton has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 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 12:16:57,339 WARN L457 BasicCegarLoop]: Sleep set: output automaton has 34644 states, 31699 states have (on average 1.2000063093472981) internal successors, (38039), 34643 states have internal predecessors, (38039), 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 12:16:57,400 INFO L276 IsEmpty]: Start isEmpty. Operand has 34644 states, 31699 states have (on average 1.2000063093472981) internal successors, (38039), 34643 states have internal predecessors, (38039), 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 12:16:57,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-11-12 12:16:57,429 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:16:57,430 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 12:16:57,431 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:16:57,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:16:57,440 INFO L82 PathProgramCache]: Analyzing trace with hash 143249805, now seen corresponding path program 1 times [2020-11-12 12:16:57,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:16:57,456 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404562646] [2020-11-12 12:16:57,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:16:57,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:16:57,951 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 12:16:57,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404562646] [2020-11-12 12:16:57,952 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:16:57,953 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:16:57,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052242562] [2020-11-12 12:16:57,957 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:16:57,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:16:57,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:16:57,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:16:58,016 INFO L87 Difference]: Start difference. First operand has 34644 states, 31699 states have (on average 1.2000063093472981) internal successors, (38039), 34643 states have internal predecessors, (38039), 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 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 12:16:58,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:16:58,378 INFO L93 Difference]: Finished difference Result 14074 states and 16213 transitions. [2020-11-12 12:16:58,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 12:16:58,380 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 12:16:58,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:16:58,432 INFO L225 Difference]: With dead ends: 14074 [2020-11-12 12:16:58,432 INFO L226 Difference]: Without dead ends: 4803 [2020-11-12 12:16:58,435 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 12:16:58,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4803 states. [2020-11-12 12:16:58,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4803 to 4803. [2020-11-12 12:16:58,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4803 states, 4558 states have (on average 1.3415971917507679) internal successors, (6115), 4802 states have internal predecessors, (6115), 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 12:16:58,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4803 states to 4803 states and 6115 transitions. [2020-11-12 12:16:58,768 INFO L78 Accepts]: Start accepts. Automaton has 4803 states and 6115 transitions. Word has length 42 [2020-11-12 12:16:58,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:16:58,770 INFO L481 AbstractCegarLoop]: Abstraction has 4803 states and 6115 transitions. [2020-11-12 12:16:58,771 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 12:16:58,774 INFO L276 IsEmpty]: Start isEmpty. Operand 4803 states and 6115 transitions. [2020-11-12 12:16:58,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-11-12 12:16:58,783 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:16:58,783 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 12:16:58,791 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-12 12:16:58,791 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:16:58,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:16:58,793 INFO L82 PathProgramCache]: Analyzing trace with hash 1163284558, now seen corresponding path program 1 times [2020-11-12 12:16:58,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:16:58,794 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060732106] [2020-11-12 12:16:58,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:16:58,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:16:58,990 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 12:16:58,990 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060732106] [2020-11-12 12:16:58,991 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:16:58,991 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:16:58,991 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334884991] [2020-11-12 12:16:58,993 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:16:58,993 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:16:58,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:16:58,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:16:58,994 INFO L87 Difference]: Start difference. First operand 4803 states and 6115 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 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 12:16:59,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:16:59,221 INFO L93 Difference]: Finished difference Result 6282 states and 8127 transitions. [2020-11-12 12:16:59,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 12:16:59,222 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 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 12:16:59,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:16:59,235 INFO L225 Difference]: With dead ends: 6282 [2020-11-12 12:16:59,236 INFO L226 Difference]: Without dead ends: 2699 [2020-11-12 12:16:59,237 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-12 12:16:59,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2699 states. [2020-11-12 12:16:59,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2699 to 2699. [2020-11-12 12:16:59,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2699 states, 2559 states have (on average 1.2833137944509574) internal successors, (3284), 2698 states have internal predecessors, (3284), 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 12:16:59,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2699 states to 2699 states and 3284 transitions. [2020-11-12 12:16:59,353 INFO L78 Accepts]: Start accepts. Automaton has 2699 states and 3284 transitions. Word has length 44 [2020-11-12 12:16:59,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:16:59,353 INFO L481 AbstractCegarLoop]: Abstraction has 2699 states and 3284 transitions. [2020-11-12 12:16:59,354 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 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 12:16:59,354 INFO L276 IsEmpty]: Start isEmpty. Operand 2699 states and 3284 transitions. [2020-11-12 12:16:59,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-11-12 12:16:59,359 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:16:59,359 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] [2020-11-12 12:16:59,359 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-12 12:16:59,359 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:16:59,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:16:59,360 INFO L82 PathProgramCache]: Analyzing trace with hash 1560628649, now seen corresponding path program 1 times [2020-11-12 12:16:59,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:16:59,361 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989617303] [2020-11-12 12:16:59,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:16:59,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:16:59,575 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 12:16:59,575 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989617303] [2020-11-12 12:16:59,576 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:16:59,576 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:16:59,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56202364] [2020-11-12 12:16:59,576 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:16:59,577 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:16:59,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:16:59,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:16:59,578 INFO L87 Difference]: Start difference. First operand 2699 states and 3284 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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 12:16:59,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:16:59,785 INFO L93 Difference]: Finished difference Result 3591 states and 4431 transitions. [2020-11-12 12:16:59,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 12:16:59,786 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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 47 [2020-11-12 12:16:59,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:16:59,793 INFO L225 Difference]: With dead ends: 3591 [2020-11-12 12:16:59,793 INFO L226 Difference]: Without dead ends: 1506 [2020-11-12 12:16:59,794 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-12 12:16:59,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1506 states. [2020-11-12 12:16:59,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1506 to 1506. [2020-11-12 12:16:59,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1506 states, 1426 states have (on average 1.2370266479663394) internal successors, (1764), 1505 states have internal predecessors, (1764), 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 12:16:59,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 1764 transitions. [2020-11-12 12:16:59,831 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 1764 transitions. Word has length 47 [2020-11-12 12:16:59,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:16:59,831 INFO L481 AbstractCegarLoop]: Abstraction has 1506 states and 1764 transitions. [2020-11-12 12:16:59,831 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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 12:16:59,832 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 1764 transitions. [2020-11-12 12:16:59,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-11-12 12:16:59,835 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:16:59,835 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 12:16:59,835 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-12 12:16:59,835 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:16:59,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:16:59,836 INFO L82 PathProgramCache]: Analyzing trace with hash -292240942, now seen corresponding path program 1 times [2020-11-12 12:16:59,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:16:59,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631733628] [2020-11-12 12:16:59,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:16:59,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:16:59,994 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 12:16:59,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631733628] [2020-11-12 12:16:59,994 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:16:59,994 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:16:59,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163880438] [2020-11-12 12:16:59,995 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:16:59,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:16:59,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:16:59,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:16:59,998 INFO L87 Difference]: Start difference. First operand 1506 states and 1764 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 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 12:17:00,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:17:00,173 INFO L93 Difference]: Finished difference Result 1784 states and 2014 transitions. [2020-11-12 12:17:00,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 12:17:00,174 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 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 12:17:00,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:17:00,181 INFO L225 Difference]: With dead ends: 1784 [2020-11-12 12:17:00,181 INFO L226 Difference]: Without dead ends: 1462 [2020-11-12 12:17:00,182 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 12:17:00,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1462 states. [2020-11-12 12:17:00,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1462 to 1462. [2020-11-12 12:17:00,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1462 states, 1384 states have (on average 1.222543352601156) internal successors, (1692), 1461 states have internal predecessors, (1692), 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 12:17:00,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1462 states to 1462 states and 1692 transitions. [2020-11-12 12:17:00,215 INFO L78 Accepts]: Start accepts. Automaton has 1462 states and 1692 transitions. Word has length 50 [2020-11-12 12:17:00,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:17:00,216 INFO L481 AbstractCegarLoop]: Abstraction has 1462 states and 1692 transitions. [2020-11-12 12:17:00,216 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 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 12:17:00,216 INFO L276 IsEmpty]: Start isEmpty. Operand 1462 states and 1692 transitions. [2020-11-12 12:17:00,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-12 12:17:00,219 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:17:00,219 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, 1] [2020-11-12 12:17:00,219 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-12 12:17:00,220 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:17:00,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:17:00,220 INFO L82 PathProgramCache]: Analyzing trace with hash 1369133315, now seen corresponding path program 1 times [2020-11-12 12:17:00,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:17:00,221 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126115710] [2020-11-12 12:17:00,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:17:00,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:17:00,349 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 12:17:00,350 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126115710] [2020-11-12 12:17:00,350 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:17:00,351 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:17:00,351 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239477958] [2020-11-12 12:17:00,351 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:17:00,351 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:17:00,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:17:00,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:17:00,352 INFO L87 Difference]: Start difference. First operand 1462 states and 1692 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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 12:17:00,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:17:00,514 INFO L93 Difference]: Finished difference Result 1562 states and 1749 transitions. [2020-11-12 12:17:00,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 12:17:00,515 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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 51 [2020-11-12 12:17:00,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:17:00,521 INFO L225 Difference]: With dead ends: 1562 [2020-11-12 12:17:00,521 INFO L226 Difference]: Without dead ends: 1169 [2020-11-12 12:17:00,521 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-11-12 12:17:00,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1169 states. [2020-11-12 12:17:00,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1169 to 1169. [2020-11-12 12:17:00,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1169 states, 1106 states have (on average 1.1618444846292948) internal successors, (1285), 1168 states have internal predecessors, (1285), 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 12:17:00,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1169 states to 1169 states and 1285 transitions. [2020-11-12 12:17:00,547 INFO L78 Accepts]: Start accepts. Automaton has 1169 states and 1285 transitions. Word has length 51 [2020-11-12 12:17:00,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:17:00,547 INFO L481 AbstractCegarLoop]: Abstraction has 1169 states and 1285 transitions. [2020-11-12 12:17:00,547 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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 12:17:00,547 INFO L276 IsEmpty]: Start isEmpty. Operand 1169 states and 1285 transitions. [2020-11-12 12:17:00,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-11-12 12:17:00,550 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:17:00,550 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, 1, 1] [2020-11-12 12:17:00,550 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-12 12:17:00,551 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:17:00,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:17:00,551 INFO L82 PathProgramCache]: Analyzing trace with hash -192273778, now seen corresponding path program 1 times [2020-11-12 12:17:00,551 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:17:00,552 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833726496] [2020-11-12 12:17:00,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:17:00,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:17:00,691 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 12:17:00,691 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833726496] [2020-11-12 12:17:00,692 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:17:00,692 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-12 12:17:00,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559046824] [2020-11-12 12:17:00,693 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-12 12:17:00,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:17:00,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-12 12:17:00,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-12 12:17:00,694 INFO L87 Difference]: Start difference. First operand 1169 states and 1285 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 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 12:17:00,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:17:00,903 INFO L93 Difference]: Finished difference Result 918 states and 971 transitions. [2020-11-12 12:17:00,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-12 12:17:00,904 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 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 52 [2020-11-12 12:17:00,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:17:00,907 INFO L225 Difference]: With dead ends: 918 [2020-11-12 12:17:00,907 INFO L226 Difference]: Without dead ends: 519 [2020-11-12 12:17:00,908 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-11-12 12:17:00,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2020-11-12 12:17:00,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 519. [2020-11-12 12:17:00,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 492 states have (on average 1.0528455284552845) internal successors, (518), 518 states have internal predecessors, (518), 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 12:17:00,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 518 transitions. [2020-11-12 12:17:00,921 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 518 transitions. Word has length 52 [2020-11-12 12:17:00,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:17:00,921 INFO L481 AbstractCegarLoop]: Abstraction has 519 states and 518 transitions. [2020-11-12 12:17:00,922 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 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 12:17:00,922 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 518 transitions. [2020-11-12 12:17:00,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-11-12 12:17:00,923 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:17:00,923 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, 1, 1, 1, 1] [2020-11-12 12:17:00,923 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-12 12:17:00,924 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:17:00,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:17:00,924 INFO L82 PathProgramCache]: Analyzing trace with hash -1453263537, now seen corresponding path program 1 times [2020-11-12 12:17:00,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:17:00,925 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268823110] [2020-11-12 12:17:00,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:17:00,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:17:01,029 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 12:17:01,030 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268823110] [2020-11-12 12:17:01,030 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:17:01,030 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:17:01,030 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690422234] [2020-11-12 12:17:01,031 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:17:01,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:17:01,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:17:01,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:17:01,032 INFO L87 Difference]: Start difference. First operand 519 states and 518 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 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 12:17:01,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:17:01,103 INFO L93 Difference]: Finished difference Result 411 states and 410 transitions. [2020-11-12 12:17:01,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-12 12:17:01,104 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 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 54 [2020-11-12 12:17:01,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:17:01,104 INFO L225 Difference]: With dead ends: 411 [2020-11-12 12:17:01,104 INFO L226 Difference]: Without dead ends: 0 [2020-11-12 12:17:01,105 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-12 12:17:01,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-12 12:17:01,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-12 12:17:01,105 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 12:17:01,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-12 12:17:01,106 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 54 [2020-11-12 12:17:01,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:17:01,106 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-12 12:17:01,106 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 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 12:17:01,106 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-12 12:17:01,107 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-12 12:17:01,107 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-12 12:17:01,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:17:01 BasicIcfg [2020-11-12 12:17:01,112 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-12 12:17:01,115 INFO L168 Benchmark]: Toolchain (without parser) took 7565.51 ms. Allocated memory was 314.6 MB in the beginning and 1.1 GB in the end (delta: 805.3 MB). Free memory was 288.5 MB in the beginning and 950.3 MB in the end (delta: -661.8 MB). Peak memory consumption was 143.3 MB. Max. memory is 16.0 GB. [2020-11-12 12:17:01,116 INFO L168 Benchmark]: CDTParser took 0.77 ms. Allocated memory is still 314.6 MB. Free memory is still 285.2 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 12:17:01,117 INFO L168 Benchmark]: CACSL2BoogieTranslator took 898.42 ms. Allocated memory is still 314.6 MB. Free memory was 287.7 MB in the beginning and 278.0 MB in the end (delta: 9.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. [2020-11-12 12:17:01,117 INFO L168 Benchmark]: Boogie Procedure Inliner took 94.26 ms. Allocated memory is still 314.6 MB. Free memory was 278.0 MB in the beginning and 275.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 12:17:01,118 INFO L168 Benchmark]: Boogie Preprocessor took 59.93 ms. Allocated memory is still 314.6 MB. Free memory was 275.9 MB in the beginning and 274.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 12:17:01,119 INFO L168 Benchmark]: RCFGBuilder took 598.60 ms. Allocated memory is still 314.6 MB. Free memory was 274.6 MB in the beginning and 295.1 MB in the end (delta: -20.6 MB). Peak memory consumption was 26.3 MB. Max. memory is 16.0 GB. [2020-11-12 12:17:01,120 INFO L168 Benchmark]: TraceAbstraction took 5899.57 ms. Allocated memory was 314.6 MB in the beginning and 1.1 GB in the end (delta: 805.3 MB). Free memory was 294.1 MB in the beginning and 950.3 MB in the end (delta: -656.2 MB). Peak memory consumption was 149.1 MB. Max. memory is 16.0 GB. [2020-11-12 12:17:01,124 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.77 ms. Allocated memory is still 314.6 MB. Free memory is still 285.2 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 898.42 ms. Allocated memory is still 314.6 MB. Free memory was 287.7 MB in the beginning and 278.0 MB in the end (delta: 9.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 94.26 ms. Allocated memory is still 314.6 MB. Free memory was 278.0 MB in the beginning and 275.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 59.93 ms. Allocated memory is still 314.6 MB. Free memory was 275.9 MB in the beginning and 274.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 598.60 ms. Allocated memory is still 314.6 MB. Free memory was 274.6 MB in the beginning and 295.1 MB in the end (delta: -20.6 MB). Peak memory consumption was 26.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 5899.57 ms. Allocated memory was 314.6 MB in the beginning and 1.1 GB in the end (delta: 805.3 MB). Free memory was 294.1 MB in the beginning and 950.3 MB in the end (delta: -656.2 MB). Peak memory consumption was 149.1 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, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.7s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 447 SDtfs, 689 SDslu, 1643 SDs, 0 SdLazy, 182 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 87 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34644occurred 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: 0.5s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 340 NumberOfCodeBlocks, 340 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 333 ConstructedInterpolants, 0 QuantifiedInterpolants, 42677 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...