/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/safe032_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-12 12:27:46,075 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-12 12:27:46,079 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-12 12:27:46,137 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-12 12:27:46,138 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-12 12:27:46,142 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-12 12:27:46,147 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-12 12:27:46,156 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-12 12:27:46,159 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-12 12:27:46,165 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-12 12:27:46,167 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-12 12:27:46,168 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-12 12:27:46,169 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-12 12:27:46,172 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-12 12:27:46,175 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-12 12:27:46,177 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-12 12:27:46,178 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-12 12:27:46,181 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-12 12:27:46,189 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-12 12:27:46,198 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-12 12:27:46,200 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-12 12:27:46,202 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-12 12:27:46,204 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-12 12:27:46,207 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-12 12:27:46,216 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-12 12:27:46,222 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-12 12:27:46,223 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-12 12:27:46,225 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-12 12:27:46,226 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-12 12:27:46,227 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-12 12:27:46,227 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-12 12:27:46,228 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-12 12:27:46,229 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-12 12:27:46,229 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-12 12:27:46,230 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-12 12:27:46,231 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-12 12:27:46,232 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 12:27:46,289 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-12 12:27:46,290 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-12 12:27:46,294 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-12 12:27:46,294 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-12 12:27:46,294 INFO L138 SettingsManager]: * Use SBE=true [2020-11-12 12:27:46,295 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-12 12:27:46,295 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-12 12:27:46,295 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-12 12:27:46,295 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-12 12:27:46,296 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-12 12:27:46,297 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-12 12:27:46,297 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-12 12:27:46,297 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-12 12:27:46,298 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-12 12:27:46,298 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-12 12:27:46,298 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-12 12:27:46,298 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-12 12:27:46,299 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-12 12:27:46,299 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-12 12:27:46,299 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-12 12:27:46,299 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-12 12:27:46,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 12:27:46,300 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-12 12:27:46,300 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-12 12:27:46,300 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-12 12:27:46,301 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-12 12:27:46,301 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-12 12:27:46,301 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-12 12:27:46,301 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-12 12:27:46,301 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-12 12:27:46,302 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-12 12:27:46,718 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-12 12:27:46,760 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-12 12:27:46,762 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-12 12:27:46,764 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-12 12:27:46,764 INFO L275 PluginConnector]: CDTParser initialized [2020-11-12 12:27:46,765 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe032_tso.oepc.i [2020-11-12 12:27:46,851 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5f84b422/2e1b4981ab4640fa9bf39979cf6b3da4/FLAG01a3352e4 [2020-11-12 12:27:47,542 INFO L306 CDTParser]: Found 1 translation units. [2020-11-12 12:27:47,543 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe032_tso.oepc.i [2020-11-12 12:27:47,565 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5f84b422/2e1b4981ab4640fa9bf39979cf6b3da4/FLAG01a3352e4 [2020-11-12 12:27:47,843 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5f84b422/2e1b4981ab4640fa9bf39979cf6b3da4 [2020-11-12 12:27:47,848 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-12 12:27:47,857 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-12 12:27:47,862 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-12 12:27:47,862 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-12 12:27:47,867 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-12 12:27:47,868 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:27:47" (1/1) ... [2020-11-12 12:27:47,873 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55d49acb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:27:47, skipping insertion in model container [2020-11-12 12:27:47,874 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:27:47" (1/1) ... [2020-11-12 12:27:47,882 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-12 12:27:47,962 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-12 12:27:48,505 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 12:27:48,515 INFO L203 MainTranslator]: Completed pre-run [2020-11-12 12:27:48,560 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 12:27:48,657 INFO L208 MainTranslator]: Completed translation [2020-11-12 12:27:48,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:27:48 WrapperNode [2020-11-12 12:27:48,658 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-12 12:27:48,659 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-12 12:27:48,660 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-12 12:27:48,660 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-12 12:27:48,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:27:48" (1/1) ... [2020-11-12 12:27:48,687 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:27:48" (1/1) ... [2020-11-12 12:27:48,711 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-12 12:27:48,712 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-12 12:27:48,712 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-12 12:27:48,712 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-12 12:27:48,722 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:27:48" (1/1) ... [2020-11-12 12:27:48,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:27:48" (1/1) ... [2020-11-12 12:27:48,726 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:27:48" (1/1) ... [2020-11-12 12:27:48,727 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:27:48" (1/1) ... [2020-11-12 12:27:48,733 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:27:48" (1/1) ... [2020-11-12 12:27:48,736 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:27:48" (1/1) ... [2020-11-12 12:27:48,738 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:27:48" (1/1) ... [2020-11-12 12:27:48,742 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-12 12:27:48,743 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-12 12:27:48,743 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-12 12:27:48,743 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-12 12:27:48,744 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:27:48" (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 12:27:48,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-12 12:27:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-12 12:27:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-12 12:27:48,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-12 12:27:48,892 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-12 12:27:48,893 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-12 12:27:48,894 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-12 12:27:48,894 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-12 12:27:48,895 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-12 12:27:48,895 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-12 12:27:48,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-12 12:27:48,895 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-12 12:27:48,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-12 12:27:48,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-12 12:27:48,897 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 12:27:49,364 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-12 12:27:49,365 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-12 12:27:49,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:27:49 BoogieIcfgContainer [2020-11-12 12:27:49,367 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-12 12:27:49,369 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-12 12:27:49,369 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-12 12:27:49,373 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-12 12:27:49,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:27:47" (1/3) ... [2020-11-12 12:27:49,374 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e113af0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:27:49, skipping insertion in model container [2020-11-12 12:27:49,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:27:48" (2/3) ... [2020-11-12 12:27:49,375 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e113af0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:27:49, skipping insertion in model container [2020-11-12 12:27:49,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:27:49" (3/3) ... [2020-11-12 12:27:49,376 INFO L111 eAbstractionObserver]: Analyzing ICFG safe032_tso.oepc.i [2020-11-12 12:27:49,392 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-12 12:27:49,393 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-12 12:27:49,397 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-12 12:27:49,398 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-12 12:27:49,432 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:49,433 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:49,433 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:49,433 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:49,433 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:49,434 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:49,434 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:49,434 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:49,435 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:49,435 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:49,435 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:49,435 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:49,436 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:49,436 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:49,436 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:49,436 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:49,437 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:49,437 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:49,437 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:49,437 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:49,438 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:49,438 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:49,438 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:49,438 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:49,439 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:49,439 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:49,439 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:49,439 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:49,440 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:49,440 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:49,440 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:49,440 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:49,441 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:49,441 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:49,441 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:49,441 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:49,444 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:49,444 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:49,445 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:49,445 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:49,452 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:49,452 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:49,453 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:49,453 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:49,455 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:49,456 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:49,456 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:49,456 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:27:49,459 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-12 12:27:49,472 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-12 12:27:49,494 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-12 12:27:49,494 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-12 12:27:49,494 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-12 12:27:49,494 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-12 12:27:49,495 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-12 12:27:49,495 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-12 12:27:49,495 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-12 12:27:49,495 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-12 12:27:49,508 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 85 places, 78 transitions, 171 flow [2020-11-12 12:27:50,792 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9847 states, 9845 states have (on average 3.614931437277806) internal successors, (35589), 9846 states have internal predecessors, (35589), 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 12:27:51,986 WARN L455 BasicCegarLoop]: Sleep Set Reduction Time: 1191ms [2020-11-12 12:27:52,021 WARN L456 BasicCegarLoop]: Sleep set: input automaton has 9847 states, 9845 states have (on average 3.614931437277806) internal successors, (35589), 9846 states have internal predecessors, (35589), 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 12:27:52,083 WARN L457 BasicCegarLoop]: Sleep set: output automaton has 33438 states, 30535 states have (on average 1.1889634845259538) internal successors, (36305), 33437 states have internal predecessors, (36305), 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 12:27:52,116 INFO L276 IsEmpty]: Start isEmpty. Operand has 33438 states, 30535 states have (on average 1.1889634845259538) internal successors, (36305), 33437 states have internal predecessors, (36305), 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 12:27:52,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-11-12 12:27:52,141 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:27:52,142 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] [2020-11-12 12:27:52,142 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:27:52,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:27:52,149 INFO L82 PathProgramCache]: Analyzing trace with hash 1725749416, now seen corresponding path program 1 times [2020-11-12 12:27:52,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:27:52,160 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108921297] [2020-11-12 12:27:52,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:27:52,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:27:52,683 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 12:27:52,684 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108921297] [2020-11-12 12:27:52,685 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:27:52,685 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:27:52,686 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147381382] [2020-11-12 12:27:52,689 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:27:52,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:27:52,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:27:52,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:27:52,731 INFO L87 Difference]: Start difference. First operand has 33438 states, 30535 states have (on average 1.1889634845259538) internal successors, (36305), 33437 states have internal predecessors, (36305), 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 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 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 12:27:53,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:27:53,139 INFO L93 Difference]: Finished difference Result 14997 states and 17079 transitions. [2020-11-12 12:27:53,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 12:27:53,141 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 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 41 [2020-11-12 12:27:53,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:27:53,187 INFO L225 Difference]: With dead ends: 14997 [2020-11-12 12:27:53,187 INFO L226 Difference]: Without dead ends: 5638 [2020-11-12 12:27:53,189 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 12:27:53,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5638 states. [2020-11-12 12:27:53,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5638 to 5638. [2020-11-12 12:27:53,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5638 states, 5323 states have (on average 1.3605109900432086) internal successors, (7242), 5637 states have internal predecessors, (7242), 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 12:27:53,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5638 states to 5638 states and 7242 transitions. [2020-11-12 12:27:53,501 INFO L78 Accepts]: Start accepts. Automaton has 5638 states and 7242 transitions. Word has length 41 [2020-11-12 12:27:53,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:27:53,502 INFO L481 AbstractCegarLoop]: Abstraction has 5638 states and 7242 transitions. [2020-11-12 12:27:53,502 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 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 12:27:53,502 INFO L276 IsEmpty]: Start isEmpty. Operand 5638 states and 7242 transitions. [2020-11-12 12:27:53,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-11-12 12:27:53,521 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:27:53,521 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 12:27:53,521 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-12 12:27:53,522 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:27:53,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:27:53,523 INFO L82 PathProgramCache]: Analyzing trace with hash -104074361, now seen corresponding path program 1 times [2020-11-12 12:27:53,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:27:53,524 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019019126] [2020-11-12 12:27:53,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:27:53,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:27:53,802 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 12:27:53,803 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019019126] [2020-11-12 12:27:53,803 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:27:53,803 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:27:53,804 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746378383] [2020-11-12 12:27:53,805 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:27:53,805 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:27:53,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:27:53,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:27:53,807 INFO L87 Difference]: Start difference. First operand 5638 states and 7242 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 12:27:54,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:27:54,044 INFO L93 Difference]: Finished difference Result 5943 states and 7532 transitions. [2020-11-12 12:27:54,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 12:27:54,045 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 12:27:54,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:27:54,063 INFO L225 Difference]: With dead ends: 5943 [2020-11-12 12:27:54,063 INFO L226 Difference]: Without dead ends: 3547 [2020-11-12 12:27:54,064 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 12:27:54,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3547 states. [2020-11-12 12:27:54,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3547 to 3547. [2020-11-12 12:27:54,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3547 states, 3351 states have (on average 1.3148313936138467) internal successors, (4406), 3546 states have internal predecessors, (4406), 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 12:27:54,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3547 states to 3547 states and 4406 transitions. [2020-11-12 12:27:54,165 INFO L78 Accepts]: Start accepts. Automaton has 3547 states and 4406 transitions. Word has length 43 [2020-11-12 12:27:54,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:27:54,165 INFO L481 AbstractCegarLoop]: Abstraction has 3547 states and 4406 transitions. [2020-11-12 12:27:54,166 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 12:27:54,166 INFO L276 IsEmpty]: Start isEmpty. Operand 3547 states and 4406 transitions. [2020-11-12 12:27:54,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-11-12 12:27:54,173 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:27:54,173 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 12:27:54,173 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-12 12:27:54,174 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:27:54,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:27:54,175 INFO L82 PathProgramCache]: Analyzing trace with hash 2002666309, now seen corresponding path program 1 times [2020-11-12 12:27:54,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:27:54,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475903031] [2020-11-12 12:27:54,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:27:54,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:27:54,355 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 12:27:54,356 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475903031] [2020-11-12 12:27:54,356 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:27:54,356 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:27:54,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610750359] [2020-11-12 12:27:54,357 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:27:54,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:27:54,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:27:54,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:27:54,359 INFO L87 Difference]: Start difference. First operand 3547 states and 4406 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 12:27:54,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:27:54,615 INFO L93 Difference]: Finished difference Result 5681 states and 7147 transitions. [2020-11-12 12:27:54,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 12:27:54,616 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 12:27:54,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:27:54,630 INFO L225 Difference]: With dead ends: 5681 [2020-11-12 12:27:54,630 INFO L226 Difference]: Without dead ends: 2671 [2020-11-12 12:27:54,630 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 12:27:54,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2671 states. [2020-11-12 12:27:54,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2671 to 2671. [2020-11-12 12:27:54,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2671 states, 2531 states have (on average 1.3184512050572896) internal successors, (3337), 2670 states have internal predecessors, (3337), 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 12:27:54,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2671 states to 2671 states and 3337 transitions. [2020-11-12 12:27:54,701 INFO L78 Accepts]: Start accepts. Automaton has 2671 states and 3337 transitions. Word has length 44 [2020-11-12 12:27:54,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:27:54,701 INFO L481 AbstractCegarLoop]: Abstraction has 2671 states and 3337 transitions. [2020-11-12 12:27:54,701 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 12:27:54,702 INFO L276 IsEmpty]: Start isEmpty. Operand 2671 states and 3337 transitions. [2020-11-12 12:27:54,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-11-12 12:27:54,707 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:27:54,707 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 12:27:54,707 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-12 12:27:54,707 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:27:54,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:27:54,708 INFO L82 PathProgramCache]: Analyzing trace with hash -2883370, now seen corresponding path program 1 times [2020-11-12 12:27:54,708 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:27:54,708 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802572627] [2020-11-12 12:27:54,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:27:54,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:27:54,882 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 12:27:54,883 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802572627] [2020-11-12 12:27:54,883 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:27:54,884 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:27:54,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504422053] [2020-11-12 12:27:54,885 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:27:54,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:27:54,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:27:54,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:27:54,888 INFO L87 Difference]: Start difference. First operand 2671 states and 3337 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 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 12:27:55,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:27:55,101 INFO L93 Difference]: Finished difference Result 4413 states and 5607 transitions. [2020-11-12 12:27:55,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-12 12:27:55,102 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 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 12:27:55,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:27:55,120 INFO L225 Difference]: With dead ends: 4413 [2020-11-12 12:27:55,120 INFO L226 Difference]: Without dead ends: 2597 [2020-11-12 12:27:55,120 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:27:55,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2597 states. [2020-11-12 12:27:55,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2597 to 2597. [2020-11-12 12:27:55,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2597 states, 2457 states have (on average 1.3048433048433048) internal successors, (3206), 2596 states have internal predecessors, (3206), 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 12:27:55,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2597 states to 2597 states and 3206 transitions. [2020-11-12 12:27:55,193 INFO L78 Accepts]: Start accepts. Automaton has 2597 states and 3206 transitions. Word has length 46 [2020-11-12 12:27:55,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:27:55,194 INFO L481 AbstractCegarLoop]: Abstraction has 2597 states and 3206 transitions. [2020-11-12 12:27:55,194 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 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 12:27:55,194 INFO L276 IsEmpty]: Start isEmpty. Operand 2597 states and 3206 transitions. [2020-11-12 12:27:55,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-11-12 12:27:55,201 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:27:55,202 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 12:27:55,202 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-12 12:27:55,202 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:27:55,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:27:55,203 INFO L82 PathProgramCache]: Analyzing trace with hash -274912540, now seen corresponding path program 2 times [2020-11-12 12:27:55,203 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:27:55,204 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390685767] [2020-11-12 12:27:55,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:27:55,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:27:55,420 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 12:27:55,421 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390685767] [2020-11-12 12:27:55,422 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:27:55,422 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:27:55,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381991964] [2020-11-12 12:27:55,426 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:27:55,427 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:27:55,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:27:55,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:27:55,431 INFO L87 Difference]: Start difference. First operand 2597 states and 3206 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 12:27:55,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:27:55,680 INFO L93 Difference]: Finished difference Result 3065 states and 3638 transitions. [2020-11-12 12:27:55,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 12:27:55,681 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 12:27:55,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:27:55,693 INFO L225 Difference]: With dead ends: 3065 [2020-11-12 12:27:55,694 INFO L226 Difference]: Without dead ends: 2445 [2020-11-12 12:27:55,694 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 12:27:55,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2445 states. [2020-11-12 12:27:55,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2445 to 2445. [2020-11-12 12:27:55,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2445 states, 2313 states have (on average 1.2866407263294424) internal successors, (2976), 2444 states have internal predecessors, (2976), 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 12:27:55,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2445 states to 2445 states and 2976 transitions. [2020-11-12 12:27:55,776 INFO L78 Accepts]: Start accepts. Automaton has 2445 states and 2976 transitions. Word has length 46 [2020-11-12 12:27:55,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:27:55,779 INFO L481 AbstractCegarLoop]: Abstraction has 2445 states and 2976 transitions. [2020-11-12 12:27:55,779 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 12:27:55,779 INFO L276 IsEmpty]: Start isEmpty. Operand 2445 states and 2976 transitions. [2020-11-12 12:27:55,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-11-12 12:27:55,786 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:27:55,786 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 12:27:55,787 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-12 12:27:55,787 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:27:55,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:27:55,787 INFO L82 PathProgramCache]: Analyzing trace with hash 1735060404, now seen corresponding path program 1 times [2020-11-12 12:27:55,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:27:55,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702422792] [2020-11-12 12:27:55,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:27:55,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:27:55,930 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 12:27:55,931 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702422792] [2020-11-12 12:27:55,931 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:27:55,931 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:27:55,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678990516] [2020-11-12 12:27:55,932 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:27:55,932 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:27:55,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:27:55,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:27:55,933 INFO L87 Difference]: Start difference. First operand 2445 states and 2976 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 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 12:27:56,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:27:56,203 INFO L93 Difference]: Finished difference Result 4168 states and 4826 transitions. [2020-11-12 12:27:56,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 12:27:56,211 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 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 12:27:56,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:27:56,231 INFO L225 Difference]: With dead ends: 4168 [2020-11-12 12:27:56,233 INFO L226 Difference]: Without dead ends: 2490 [2020-11-12 12:27:56,234 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 12:27:56,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2490 states. [2020-11-12 12:27:56,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2490 to 1914. [2020-11-12 12:27:56,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1914 states, 1814 states have (on average 1.2839029768467476) internal successors, (2329), 1913 states have internal predecessors, (2329), 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 12:27:56,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1914 states to 1914 states and 2329 transitions. [2020-11-12 12:27:56,299 INFO L78 Accepts]: Start accepts. Automaton has 1914 states and 2329 transitions. Word has length 47 [2020-11-12 12:27:56,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:27:56,300 INFO L481 AbstractCegarLoop]: Abstraction has 1914 states and 2329 transitions. [2020-11-12 12:27:56,300 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 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 12:27:56,300 INFO L276 IsEmpty]: Start isEmpty. Operand 1914 states and 2329 transitions. [2020-11-12 12:27:56,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-11-12 12:27:56,304 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:27:56,304 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 12:27:56,304 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-12 12:27:56,305 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:27:56,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:27:56,306 INFO L82 PathProgramCache]: Analyzing trace with hash -879410139, now seen corresponding path program 1 times [2020-11-12 12:27:56,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:27:56,306 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772595286] [2020-11-12 12:27:56,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:27:56,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:27:56,474 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 12:27:56,474 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772595286] [2020-11-12 12:27:56,474 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:27:56,475 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:27:56,475 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769326373] [2020-11-12 12:27:56,475 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:27:56,476 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:27:56,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:27:56,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:27:56,477 INFO L87 Difference]: Start difference. First operand 1914 states and 2329 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 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 12:27:56,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:27:56,665 INFO L93 Difference]: Finished difference Result 2133 states and 2494 transitions. [2020-11-12 12:27:56,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 12:27:56,666 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 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 12:27:56,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:27:56,675 INFO L225 Difference]: With dead ends: 2133 [2020-11-12 12:27:56,675 INFO L226 Difference]: Without dead ends: 1822 [2020-11-12 12:27:56,677 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 12:27:56,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1822 states. [2020-11-12 12:27:56,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1822 to 1822. [2020-11-12 12:27:56,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1822 states, 1726 states have (on average 1.2641946697566628) internal successors, (2182), 1821 states have internal predecessors, (2182), 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 12:27:56,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1822 states to 1822 states and 2182 transitions. [2020-11-12 12:27:56,733 INFO L78 Accepts]: Start accepts. Automaton has 1822 states and 2182 transitions. Word has length 48 [2020-11-12 12:27:56,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:27:56,733 INFO L481 AbstractCegarLoop]: Abstraction has 1822 states and 2182 transitions. [2020-11-12 12:27:56,734 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 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 12:27:56,734 INFO L276 IsEmpty]: Start isEmpty. Operand 1822 states and 2182 transitions. [2020-11-12 12:27:56,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-11-12 12:27:56,739 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:27:56,739 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] [2020-11-12 12:27:56,739 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-12 12:27:56,739 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:27:56,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:27:56,740 INFO L82 PathProgramCache]: Analyzing trace with hash -1146789784, now seen corresponding path program 1 times [2020-11-12 12:27:56,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:27:56,741 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296341679] [2020-11-12 12:27:56,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:27:56,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:27:56,937 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 12:27:56,940 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296341679] [2020-11-12 12:27:56,940 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:27:56,941 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:27:56,941 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370685518] [2020-11-12 12:27:56,943 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:27:56,944 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:27:56,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:27:56,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:27:56,945 INFO L87 Difference]: Start difference. First operand 1822 states and 2182 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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 12:27:57,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:27:57,142 INFO L93 Difference]: Finished difference Result 1762 states and 2013 transitions. [2020-11-12 12:27:57,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 12:27:57,143 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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 49 [2020-11-12 12:27:57,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:27:57,150 INFO L225 Difference]: With dead ends: 1762 [2020-11-12 12:27:57,151 INFO L226 Difference]: Without dead ends: 1318 [2020-11-12 12:27:57,151 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 12:27:57,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1318 states. [2020-11-12 12:27:57,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1318 to 1318. [2020-11-12 12:27:57,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1318 states, 1246 states have (on average 1.189406099518459) internal successors, (1482), 1317 states have internal predecessors, (1482), 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 12:27:57,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1318 states to 1318 states and 1482 transitions. [2020-11-12 12:27:57,182 INFO L78 Accepts]: Start accepts. Automaton has 1318 states and 1482 transitions. Word has length 49 [2020-11-12 12:27:57,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:27:57,183 INFO L481 AbstractCegarLoop]: Abstraction has 1318 states and 1482 transitions. [2020-11-12 12:27:57,183 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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 12:27:57,184 INFO L276 IsEmpty]: Start isEmpty. Operand 1318 states and 1482 transitions. [2020-11-12 12:27:57,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-12 12:27:57,186 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:27:57,186 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 12:27:57,186 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-12 12:27:57,187 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:27:57,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:27:57,187 INFO L82 PathProgramCache]: Analyzing trace with hash -60159161, now seen corresponding path program 1 times [2020-11-12 12:27:57,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:27:57,188 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891825391] [2020-11-12 12:27:57,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:27:57,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:27:57,336 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 12:27:57,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891825391] [2020-11-12 12:27:57,337 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:27:57,337 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-12 12:27:57,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908048472] [2020-11-12 12:27:57,338 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-12 12:27:57,338 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:27:57,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-12 12:27:57,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-12 12:27:57,339 INFO L87 Difference]: Start difference. First operand 1318 states and 1482 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 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 12:27:57,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:27:57,521 INFO L93 Difference]: Finished difference Result 932 states and 997 transitions. [2020-11-12 12:27:57,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-12 12:27:57,522 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 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 12:27:57,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:27:57,524 INFO L225 Difference]: With dead ends: 932 [2020-11-12 12:27:57,524 INFO L226 Difference]: Without dead ends: 448 [2020-11-12 12:27:57,525 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-11-12 12:27:57,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2020-11-12 12:27:57,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 448. [2020-11-12 12:27:57,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 421 states have (on average 1.0617577197149644) internal successors, (447), 447 states have internal predecessors, (447), 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 12:27:57,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 447 transitions. [2020-11-12 12:27:57,535 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 447 transitions. Word has length 51 [2020-11-12 12:27:57,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:27:57,535 INFO L481 AbstractCegarLoop]: Abstraction has 448 states and 447 transitions. [2020-11-12 12:27:57,535 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 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 12:27:57,535 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 447 transitions. [2020-11-12 12:27:57,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-11-12 12:27:57,537 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:27:57,537 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] [2020-11-12 12:27:57,537 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-12 12:27:57,537 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:27:57,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:27:57,538 INFO L82 PathProgramCache]: Analyzing trace with hash -938053178, now seen corresponding path program 1 times [2020-11-12 12:27:57,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:27:57,538 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136102611] [2020-11-12 12:27:57,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:27:57,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:27:57,630 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 12:27:57,631 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136102611] [2020-11-12 12:27:57,631 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:27:57,631 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:27:57,631 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40585810] [2020-11-12 12:27:57,631 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:27:57,632 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:27:57,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:27:57,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:27:57,633 INFO L87 Difference]: Start difference. First operand 448 states and 447 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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 12:27:57,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:27:57,723 INFO L93 Difference]: Finished difference Result 340 states and 339 transitions. [2020-11-12 12:27:57,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-12 12:27:57,723 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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 53 [2020-11-12 12:27:57,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:27:57,724 INFO L225 Difference]: With dead ends: 340 [2020-11-12 12:27:57,724 INFO L226 Difference]: Without dead ends: 0 [2020-11-12 12:27:57,724 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:27:57,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-12 12:27:57,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-12 12:27:57,725 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 12:27:57,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-12 12:27:57,725 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 53 [2020-11-12 12:27:57,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:27:57,725 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-12 12:27:57,726 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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 12:27:57,726 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-12 12:27:57,726 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-12 12:27:57,726 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-12 12:27:57,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:27:57 BasicIcfg [2020-11-12 12:27:57,731 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-12 12:27:57,734 INFO L168 Benchmark]: Toolchain (without parser) took 9882.84 ms. Allocated memory was 302.0 MB in the beginning and 1.1 GB in the end (delta: 780.1 MB). Free memory was 276.3 MB in the beginning and 891.9 MB in the end (delta: -615.6 MB). Peak memory consumption was 165.9 MB. Max. memory is 16.0 GB. [2020-11-12 12:27:57,735 INFO L168 Benchmark]: CDTParser took 0.75 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 12:27:57,735 INFO L168 Benchmark]: CACSL2BoogieTranslator took 797.00 ms. Allocated memory is still 302.0 MB. Free memory was 275.5 MB in the beginning and 244.9 MB in the end (delta: 30.7 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2020-11-12 12:27:57,736 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.40 ms. Allocated memory is still 302.0 MB. Free memory was 244.9 MB in the beginning and 242.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 12:27:57,737 INFO L168 Benchmark]: Boogie Preprocessor took 30.37 ms. Allocated memory is still 302.0 MB. Free memory was 242.8 MB in the beginning and 241.6 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 12:27:57,738 INFO L168 Benchmark]: RCFGBuilder took 624.63 ms. Allocated memory is still 302.0 MB. Free memory was 241.3 MB in the beginning and 263.7 MB in the end (delta: -22.4 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.0 GB. [2020-11-12 12:27:57,738 INFO L168 Benchmark]: TraceAbstraction took 8362.50 ms. Allocated memory was 302.0 MB in the beginning and 1.1 GB in the end (delta: 780.1 MB). Free memory was 262.7 MB in the beginning and 891.9 MB in the end (delta: -629.2 MB). Peak memory consumption was 153.0 MB. Max. memory is 16.0 GB. [2020-11-12 12:27:57,742 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.75 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 797.00 ms. Allocated memory is still 302.0 MB. Free memory was 275.5 MB in the beginning and 244.9 MB in the end (delta: 30.7 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 51.40 ms. Allocated memory is still 302.0 MB. Free memory was 244.9 MB in the beginning and 242.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 30.37 ms. Allocated memory is still 302.0 MB. Free memory was 242.8 MB in the beginning and 241.6 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 624.63 ms. Allocated memory is still 302.0 MB. Free memory was 241.3 MB in the beginning and 263.7 MB in the end (delta: -22.4 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 8362.50 ms. Allocated memory was 302.0 MB in the beginning and 1.1 GB in the end (delta: 780.1 MB). Free memory was 262.7 MB in the beginning and 891.9 MB in the end (delta: -629.2 MB). Peak memory consumption was 153.0 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, 76 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.2s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.5s, HoareTripleCheckerStatistics: 665 SDtfs, 703 SDslu, 2517 SDs, 0 SdLazy, 322 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33438occurred 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: 0.7s AutomataMinimizationTime, 10 MinimizatonAttempts, 576 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 468 NumberOfCodeBlocks, 468 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 458 ConstructedInterpolants, 0 QuantifiedInterpolants, 53160 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...