/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-Delay.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-12 06:28:01,177 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-12 06:28:01,181 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-12 06:28:01,240 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-12 06:28:01,241 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-12 06:28:01,245 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-12 06:28:01,249 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-12 06:28:01,258 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-12 06:28:01,263 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-12 06:28:01,270 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-12 06:28:01,271 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-12 06:28:01,272 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-12 06:28:01,273 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-12 06:28:01,276 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-12 06:28:01,278 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-12 06:28:01,280 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-12 06:28:01,282 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-12 06:28:01,285 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-12 06:28:01,292 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-12 06:28:01,300 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-12 06:28:01,302 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-12 06:28:01,304 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-12 06:28:01,305 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-12 06:28:01,308 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-12 06:28:01,317 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-12 06:28:01,317 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-12 06:28:01,317 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-12 06:28:01,320 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-12 06:28:01,320 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-12 06:28:01,321 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-12 06:28:01,322 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-12 06:28:01,323 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-12 06:28:01,325 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-12 06:28:01,326 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-12 06:28:01,327 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-12 06:28:01,327 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-12 06:28:01,328 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-12 06:28:01,328 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-12 06:28:01,328 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-12 06:28:01,330 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-12 06:28:01,330 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-12 06:28:01,332 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-Delay.epf [2020-11-12 06:28:01,388 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-12 06:28:01,388 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-12 06:28:01,393 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-12 06:28:01,393 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-12 06:28:01,394 INFO L138 SettingsManager]: * Use SBE=true [2020-11-12 06:28:01,394 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-12 06:28:01,394 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-12 06:28:01,394 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-12 06:28:01,394 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-12 06:28:01,395 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-12 06:28:01,396 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-12 06:28:01,396 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-12 06:28:01,397 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-12 06:28:01,397 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-12 06:28:01,397 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-12 06:28:01,397 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-12 06:28:01,397 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-12 06:28:01,398 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-12 06:28:01,398 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-12 06:28:01,398 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-12 06:28:01,398 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-12 06:28:01,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 06:28:01,399 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-12 06:28:01,399 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-12 06:28:01,399 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-12 06:28:01,400 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-12 06:28:01,400 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-12 06:28:01,400 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-12 06:28:01,400 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-12 06:28:01,400 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-12 06:28:01,401 INFO L138 SettingsManager]: * Sleep set reduction in concurrent analysis=DELAY_SET 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-12 06:28:01,848 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-12 06:28:01,878 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-12 06:28:01,881 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-12 06:28:01,882 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-12 06:28:01,883 INFO L275 PluginConnector]: CDTParser initialized [2020-11-12 06:28:01,884 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.opt.i [2020-11-12 06:28:01,968 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2da8c6828/67bfde03c85f4c56b66ad1d0447cd760/FLAGc69437ea1 [2020-11-12 06:28:02,766 INFO L306 CDTParser]: Found 1 translation units. [2020-11-12 06:28:02,767 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_tso.opt.i [2020-11-12 06:28:02,795 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2da8c6828/67bfde03c85f4c56b66ad1d0447cd760/FLAGc69437ea1 [2020-11-12 06:28:02,984 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2da8c6828/67bfde03c85f4c56b66ad1d0447cd760 [2020-11-12 06:28:02,990 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-12 06:28:02,998 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-12 06:28:03,003 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-12 06:28:03,003 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-12 06:28:03,007 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-12 06:28:03,008 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 06:28:02" (1/1) ... [2020-11-12 06:28:03,013 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@150e995 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:28:03, skipping insertion in model container [2020-11-12 06:28:03,013 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 06:28:02" (1/1) ... [2020-11-12 06:28:03,022 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-12 06:28:03,099 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-12 06:28:03,548 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 06:28:03,565 INFO L203 MainTranslator]: Completed pre-run [2020-11-12 06:28:03,657 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 06:28:03,757 INFO L208 MainTranslator]: Completed translation [2020-11-12 06:28:03,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:28:03 WrapperNode [2020-11-12 06:28:03,758 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-12 06:28:03,759 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-12 06:28:03,759 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-12 06:28:03,760 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-12 06:28:03,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:28:03" (1/1) ... [2020-11-12 06:28:03,785 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:28:03" (1/1) ... [2020-11-12 06:28:03,809 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-12 06:28:03,810 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-12 06:28:03,810 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-12 06:28:03,810 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-12 06:28:03,819 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:28:03" (1/1) ... [2020-11-12 06:28:03,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:28:03" (1/1) ... [2020-11-12 06:28:03,823 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:28:03" (1/1) ... [2020-11-12 06:28:03,824 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:28:03" (1/1) ... [2020-11-12 06:28:03,831 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:28:03" (1/1) ... [2020-11-12 06:28:03,839 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:28:03" (1/1) ... [2020-11-12 06:28:03,842 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:28:03" (1/1) ... [2020-11-12 06:28:03,846 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-12 06:28:03,847 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-12 06:28:03,847 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-12 06:28:03,850 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-12 06:28:03,851 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:28:03" (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 06:28:03,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-12 06:28:03,927 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-12 06:28:03,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-12 06:28:03,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-12 06:28:03,930 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-12 06:28:03,930 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-12 06:28:03,931 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-12 06:28:03,932 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-12 06:28:03,933 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-12 06:28:03,933 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-12 06:28:03,933 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-11-12 06:28:03,933 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-11-12 06:28:03,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-12 06:28:03,934 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-12 06:28:03,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-12 06:28:03,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-12 06:28:03,937 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 06:28:04,506 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-12 06:28:04,506 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-12 06:28:04,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:28:04 BoogieIcfgContainer [2020-11-12 06:28:04,509 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-12 06:28:04,511 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-12 06:28:04,511 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-12 06:28:04,515 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-12 06:28:04,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 06:28:02" (1/3) ... [2020-11-12 06:28:04,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@786836e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 06:28:04, skipping insertion in model container [2020-11-12 06:28:04,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:28:03" (2/3) ... [2020-11-12 06:28:04,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@786836e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 06:28:04, skipping insertion in model container [2020-11-12 06:28:04,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:28:04" (3/3) ... [2020-11-12 06:28:04,519 INFO L111 eAbstractionObserver]: Analyzing ICFG thin002_tso.opt.i [2020-11-12 06:28:04,537 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-12 06:28:04,537 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-12 06:28:04,541 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-12 06:28:04,542 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-12 06:28:04,584 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,584 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,585 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,585 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,585 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,585 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,585 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,586 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,586 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,586 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,587 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,587 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,588 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,588 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,588 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,588 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,588 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,589 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,589 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,589 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,590 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,590 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,590 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,590 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,591 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,591 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,591 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,591 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,591 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,592 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,592 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,592 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,592 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,593 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,593 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,593 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,593 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,594 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,594 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,594 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,594 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,594 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,595 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,595 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,595 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,595 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,596 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,596 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,598 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,599 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,599 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,599 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,611 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,611 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,611 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,612 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,623 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,624 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,624 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,624 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,631 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,631 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,631 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,632 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:28:04,648 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-12 06:28:04,662 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-12 06:28:04,703 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-12 06:28:04,704 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-12 06:28:04,704 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-12 06:28:04,704 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-12 06:28:04,704 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-12 06:28:04,704 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-12 06:28:04,704 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-12 06:28:04,704 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-12 06:28:04,724 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 105 places, 95 transitions, 210 flow [2020-11-12 06:28:18,424 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 73649 states, 73647 states have (on average 4.471315871658044) internal successors, (329299), 73648 states have internal predecessors, (329299), 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 06:28:21,000 WARN L455 BasicCegarLoop]: Sleep Set Reduction Time: 2560ms [2020-11-12 06:28:21,169 WARN L456 BasicCegarLoop]: Sleep set: input automaton has 73649 states, 73647 states have (on average 4.471315871658044) internal successors, (329299), 73648 states have internal predecessors, (329299), 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 06:28:21,322 WARN L457 BasicCegarLoop]: Sleep set: output automaton has 73649 states, 68347 states have (on average 1.6256017089265073) internal successors, (111105), 73648 states have internal predecessors, (111105), 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 06:28:21,395 INFO L276 IsEmpty]: Start isEmpty. Operand has 73649 states, 68347 states have (on average 1.6256017089265073) internal successors, (111105), 73648 states have internal predecessors, (111105), 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 06:28:21,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-11-12 06:28:21,445 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:28:21,446 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 06:28:21,446 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:28:21,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:28:21,453 INFO L82 PathProgramCache]: Analyzing trace with hash 207288984, now seen corresponding path program 1 times [2020-11-12 06:28:21,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:28:21,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520674152] [2020-11-12 06:28:21,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:28:21,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:28:21,960 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 06:28:21,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520674152] [2020-11-12 06:28:21,961 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:28:21,962 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 06:28:21,962 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709314837] [2020-11-12 06:28:21,966 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 06:28:21,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:28:21,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 06:28:21,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 06:28:22,042 INFO L87 Difference]: Start difference. First operand has 73649 states, 68347 states have (on average 1.6256017089265073) internal successors, (111105), 73648 states have internal predecessors, (111105), 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 8.166666666666666) internal successors, (49), 6 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 06:28:23,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:28:23,081 INFO L93 Difference]: Finished difference Result 93543 states and 137222 transitions. [2020-11-12 06:28:23,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 06:28:23,083 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 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 06:28:23,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:28:23,281 INFO L225 Difference]: With dead ends: 93543 [2020-11-12 06:28:23,281 INFO L226 Difference]: Without dead ends: 25046 [2020-11-12 06:28:23,283 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 06:28:23,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25046 states. [2020-11-12 06:28:24,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25046 to 25046. [2020-11-12 06:28:24,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25046 states, 23331 states have (on average 2.0264883631220263) internal successors, (47280), 25045 states have internal predecessors, (47280), 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 06:28:24,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25046 states to 25046 states and 47280 transitions. [2020-11-12 06:28:24,556 INFO L78 Accepts]: Start accepts. Automaton has 25046 states and 47280 transitions. Word has length 49 [2020-11-12 06:28:24,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:28:24,557 INFO L481 AbstractCegarLoop]: Abstraction has 25046 states and 47280 transitions. [2020-11-12 06:28:24,557 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 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 06:28:24,557 INFO L276 IsEmpty]: Start isEmpty. Operand 25046 states and 47280 transitions. [2020-11-12 06:28:24,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-12 06:28:24,584 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:28:24,584 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 06:28:24,585 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-12 06:28:24,585 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:28:24,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:28:24,587 INFO L82 PathProgramCache]: Analyzing trace with hash 1475547447, now seen corresponding path program 1 times [2020-11-12 06:28:24,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:28:24,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976386926] [2020-11-12 06:28:24,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:28:24,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:28:24,831 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 06:28:24,832 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976386926] [2020-11-12 06:28:24,832 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:28:24,832 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 06:28:24,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121447987] [2020-11-12 06:28:24,834 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 06:28:24,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:28:25,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 06:28:25,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 06:28:25,005 INFO L87 Difference]: Start difference. First operand 25046 states and 47280 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 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 06:28:25,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:28:25,450 INFO L93 Difference]: Finished difference Result 27986 states and 60125 transitions. [2020-11-12 06:28:25,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 06:28:25,451 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 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 06:28:25,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:28:25,524 INFO L225 Difference]: With dead ends: 27986 [2020-11-12 06:28:25,524 INFO L226 Difference]: Without dead ends: 18676 [2020-11-12 06:28:25,525 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 06:28:25,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18676 states. [2020-11-12 06:28:26,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18676 to 18676. [2020-11-12 06:28:26,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18676 states, 17451 states have (on average 2.0326055813420436) internal successors, (35471), 18675 states have internal predecessors, (35471), 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 06:28:26,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18676 states to 18676 states and 35471 transitions. [2020-11-12 06:28:26,180 INFO L78 Accepts]: Start accepts. Automaton has 18676 states and 35471 transitions. Word has length 51 [2020-11-12 06:28:26,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:28:26,181 INFO L481 AbstractCegarLoop]: Abstraction has 18676 states and 35471 transitions. [2020-11-12 06:28:26,181 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 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 06:28:26,181 INFO L276 IsEmpty]: Start isEmpty. Operand 18676 states and 35471 transitions. [2020-11-12 06:28:26,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-11-12 06:28:26,212 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:28:26,212 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 06:28:26,213 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-12 06:28:26,213 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:28:26,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:28:26,214 INFO L82 PathProgramCache]: Analyzing trace with hash 985046870, now seen corresponding path program 1 times [2020-11-12 06:28:26,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:28:26,215 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376910145] [2020-11-12 06:28:26,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:28:26,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:28:26,449 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 06:28:26,450 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376910145] [2020-11-12 06:28:26,450 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:28:26,450 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:28:26,451 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918617097] [2020-11-12 06:28:26,451 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:28:26,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:28:26,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:28:26,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:28:26,457 INFO L87 Difference]: Start difference. First operand 18676 states and 35471 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 06:28:26,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:28:26,932 INFO L93 Difference]: Finished difference Result 24256 states and 51208 transitions. [2020-11-12 06:28:26,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 06:28:26,932 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 06:28:26,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:28:26,962 INFO L225 Difference]: With dead ends: 24256 [2020-11-12 06:28:26,962 INFO L226 Difference]: Without dead ends: 10813 [2020-11-12 06:28:26,963 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-12 06:28:27,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10813 states. [2020-11-12 06:28:27,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10813 to 10813. [2020-11-12 06:28:27,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10813 states, 10113 states have (on average 2.082468110353011) internal successors, (21060), 10812 states have internal predecessors, (21060), 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 06:28:27,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10813 states to 10813 states and 21060 transitions. [2020-11-12 06:28:27,266 INFO L78 Accepts]: Start accepts. Automaton has 10813 states and 21060 transitions. Word has length 53 [2020-11-12 06:28:27,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:28:27,268 INFO L481 AbstractCegarLoop]: Abstraction has 10813 states and 21060 transitions. [2020-11-12 06:28:27,269 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 06:28:27,269 INFO L276 IsEmpty]: Start isEmpty. Operand 10813 states and 21060 transitions. [2020-11-12 06:28:27,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-11-12 06:28:27,285 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:28:27,285 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 06:28:27,285 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-12 06:28:27,286 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:28:27,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:28:27,286 INFO L82 PathProgramCache]: Analyzing trace with hash 466090561, now seen corresponding path program 1 times [2020-11-12 06:28:27,287 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:28:27,287 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958132195] [2020-11-12 06:28:27,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:28:27,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:28:27,477 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 06:28:27,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958132195] [2020-11-12 06:28:27,477 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:28:27,478 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:28:27,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660400984] [2020-11-12 06:28:27,478 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:28:27,479 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:28:27,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:28:27,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:28:27,480 INFO L87 Difference]: Start difference. First operand 10813 states and 21060 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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 06:28:27,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:28:27,764 INFO L93 Difference]: Finished difference Result 15888 states and 34209 transitions. [2020-11-12 06:28:27,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 06:28:27,765 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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 56 [2020-11-12 06:28:27,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:28:27,788 INFO L225 Difference]: With dead ends: 15888 [2020-11-12 06:28:27,788 INFO L226 Difference]: Without dead ends: 7953 [2020-11-12 06:28:27,789 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-12 06:28:27,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7953 states. [2020-11-12 06:28:28,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7953 to 7953. [2020-11-12 06:28:28,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7953 states, 7393 states have (on average 2.169214121466252) internal successors, (16037), 7952 states have internal predecessors, (16037), 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 06:28:28,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7953 states to 7953 states and 16037 transitions. [2020-11-12 06:28:28,163 INFO L78 Accepts]: Start accepts. Automaton has 7953 states and 16037 transitions. Word has length 56 [2020-11-12 06:28:28,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:28:28,163 INFO L481 AbstractCegarLoop]: Abstraction has 7953 states and 16037 transitions. [2020-11-12 06:28:28,164 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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 06:28:28,164 INFO L276 IsEmpty]: Start isEmpty. Operand 7953 states and 16037 transitions. [2020-11-12 06:28:28,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-11-12 06:28:28,182 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:28:28,182 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 06:28:28,182 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-12 06:28:28,182 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:28:28,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:28:28,183 INFO L82 PathProgramCache]: Analyzing trace with hash -1532781063, now seen corresponding path program 1 times [2020-11-12 06:28:28,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:28:28,184 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903864315] [2020-11-12 06:28:28,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:28:28,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:28:28,316 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 06:28:28,317 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903864315] [2020-11-12 06:28:28,317 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:28:28,317 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 06:28:28,317 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27584771] [2020-11-12 06:28:28,319 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 06:28:28,319 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:28:28,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 06:28:28,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 06:28:28,320 INFO L87 Difference]: Start difference. First operand 7953 states and 16037 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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 06:28:28,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:28:28,480 INFO L93 Difference]: Finished difference Result 8913 states and 20317 transitions. [2020-11-12 06:28:28,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 06:28:28,481 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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 57 [2020-11-12 06:28:28,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:28:28,497 INFO L225 Difference]: With dead ends: 8913 [2020-11-12 06:28:28,497 INFO L226 Difference]: Without dead ends: 5723 [2020-11-12 06:28:28,498 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 06:28:28,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5723 states. [2020-11-12 06:28:28,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5723 to 5723. [2020-11-12 06:28:28,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5723 states, 5323 states have (on average 2.212286304715386) internal successors, (11776), 5722 states have internal predecessors, (11776), 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 06:28:28,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5723 states to 5723 states and 11776 transitions. [2020-11-12 06:28:28,636 INFO L78 Accepts]: Start accepts. Automaton has 5723 states and 11776 transitions. Word has length 57 [2020-11-12 06:28:28,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:28:28,637 INFO L481 AbstractCegarLoop]: Abstraction has 5723 states and 11776 transitions. [2020-11-12 06:28:28,637 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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 06:28:28,637 INFO L276 IsEmpty]: Start isEmpty. Operand 5723 states and 11776 transitions. [2020-11-12 06:28:28,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-11-12 06:28:28,647 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:28:28,647 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 06:28:28,647 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-12 06:28:28,648 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:28:28,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:28:28,648 INFO L82 PathProgramCache]: Analyzing trace with hash -1601629032, now seen corresponding path program 1 times [2020-11-12 06:28:28,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:28:28,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196039903] [2020-11-12 06:28:28,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:28:28,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:28:28,764 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 06:28:28,764 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196039903] [2020-11-12 06:28:28,764 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:28:28,764 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:28:28,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27833907] [2020-11-12 06:28:28,765 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:28:28,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:28:28,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:28:28,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:28:28,766 INFO L87 Difference]: Start difference. First operand 5723 states and 11776 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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 06:28:28,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:28:28,950 INFO L93 Difference]: Finished difference Result 8631 states and 19543 transitions. [2020-11-12 06:28:28,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 06:28:28,951 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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 59 [2020-11-12 06:28:28,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:28:28,964 INFO L225 Difference]: With dead ends: 8631 [2020-11-12 06:28:28,965 INFO L226 Difference]: Without dead ends: 4563 [2020-11-12 06:28:28,965 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-12 06:28:28,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4563 states. [2020-11-12 06:28:29,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4563 to 4563. [2020-11-12 06:28:29,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4563 states, 4243 states have (on average 2.2213056799434363) internal successors, (9425), 4562 states have internal predecessors, (9425), 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 06:28:29,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4563 states to 4563 states and 9425 transitions. [2020-11-12 06:28:29,157 INFO L78 Accepts]: Start accepts. Automaton has 4563 states and 9425 transitions. Word has length 59 [2020-11-12 06:28:29,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:28:29,157 INFO L481 AbstractCegarLoop]: Abstraction has 4563 states and 9425 transitions. [2020-11-12 06:28:29,158 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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 06:28:29,158 INFO L276 IsEmpty]: Start isEmpty. Operand 4563 states and 9425 transitions. [2020-11-12 06:28:29,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-11-12 06:28:29,166 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:28:29,166 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 06:28:29,166 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-12 06:28:29,166 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:28:29,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:28:29,167 INFO L82 PathProgramCache]: Analyzing trace with hash 1579380312, now seen corresponding path program 1 times [2020-11-12 06:28:29,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:28:29,168 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587105531] [2020-11-12 06:28:29,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:28:29,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:28:29,359 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 06:28:29,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587105531] [2020-11-12 06:28:29,360 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:28:29,360 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:28:29,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495149592] [2020-11-12 06:28:29,361 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:28:29,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:28:29,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:28:29,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:28:29,363 INFO L87 Difference]: Start difference. First operand 4563 states and 9425 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 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 06:28:29,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:28:29,548 INFO L93 Difference]: Finished difference Result 3283 states and 8145 transitions. [2020-11-12 06:28:29,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 06:28:29,549 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 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 60 [2020-11-12 06:28:29,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:28:29,549 INFO L225 Difference]: With dead ends: 3283 [2020-11-12 06:28:29,549 INFO L226 Difference]: Without dead ends: 0 [2020-11-12 06:28:29,550 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-12 06:28:29,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-12 06:28:29,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-12 06:28:29,550 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 06:28:29,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-12 06:28:29,551 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 60 [2020-11-12 06:28:29,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:28:29,551 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-12 06:28:29,551 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 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 06:28:29,551 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-12 06:28:29,551 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-12 06:28:29,552 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-12 06:28:29,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 06:28:29 BasicIcfg [2020-11-12 06:28:29,557 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-12 06:28:29,559 INFO L168 Benchmark]: Toolchain (without parser) took 26566.27 ms. Allocated memory was 302.0 MB in the beginning and 6.3 GB in the end (delta: 6.0 GB). Free memory was 277.5 MB in the beginning and 5.7 GB in the end (delta: -5.5 GB). Peak memory consumption was 591.2 MB. Max. memory is 16.0 GB. [2020-11-12 06:28:29,560 INFO L168 Benchmark]: CDTParser took 0.67 ms. Allocated memory is still 302.0 MB. Free memory is still 272.4 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 06:28:29,561 INFO L168 Benchmark]: CACSL2BoogieTranslator took 755.63 ms. Allocated memory is still 302.0 MB. Free memory was 276.9 MB in the beginning and 282.5 MB in the end (delta: -5.6 MB). Peak memory consumption was 37.1 MB. Max. memory is 16.0 GB. [2020-11-12 06:28:29,562 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.58 ms. Allocated memory is still 302.0 MB. Free memory was 282.5 MB in the beginning and 280.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 06:28:29,563 INFO L168 Benchmark]: Boogie Preprocessor took 36.33 ms. Allocated memory is still 302.0 MB. Free memory was 280.4 MB in the beginning and 279.4 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 06:28:29,563 INFO L168 Benchmark]: RCFGBuilder took 662.38 ms. Allocated memory is still 302.0 MB. Free memory was 278.3 MB in the beginning and 252.1 MB in the end (delta: 26.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2020-11-12 06:28:29,564 INFO L168 Benchmark]: TraceAbstraction took 25046.35 ms. Allocated memory was 302.0 MB in the beginning and 6.3 GB in the end (delta: 6.0 GB). Free memory was 252.1 MB in the beginning and 5.7 GB in the end (delta: -5.5 GB). Peak memory consumption was 564.6 MB. Max. memory is 16.0 GB. [2020-11-12 06:28:29,568 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.67 ms. Allocated memory is still 302.0 MB. Free memory is still 272.4 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 755.63 ms. Allocated memory is still 302.0 MB. Free memory was 276.9 MB in the beginning and 282.5 MB in the end (delta: -5.6 MB). Peak memory consumption was 37.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 49.58 ms. Allocated memory is still 302.0 MB. Free memory was 282.5 MB in the beginning and 280.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 36.33 ms. Allocated memory is still 302.0 MB. Free memory was 280.4 MB in the beginning and 279.4 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 662.38 ms. Allocated memory is still 302.0 MB. Free memory was 278.3 MB in the beginning and 252.1 MB in the end (delta: 26.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 25046.35 ms. Allocated memory was 302.0 MB in the beginning and 6.3 GB in the end (delta: 6.0 GB). Free memory was 252.1 MB in the beginning and 5.7 GB in the end (delta: -5.5 GB). Peak memory consumption was 564.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 93 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 24.8s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 16.6s, HoareTripleCheckerStatistics: 724 SDtfs, 957 SDslu, 2501 SDs, 0 SdLazy, 162 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 89 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73649occurred 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: 2.9s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 385 NumberOfCodeBlocks, 385 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 378 ConstructedInterpolants, 0 QuantifiedInterpolants, 58522 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...