/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/safe022_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-12 12:23:28,772 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-12 12:23:28,777 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-12 12:23:28,833 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-12 12:23:28,833 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-12 12:23:28,837 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-12 12:23:28,841 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-12 12:23:28,849 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-12 12:23:28,852 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-12 12:23:28,859 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-12 12:23:28,860 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-12 12:23:28,862 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-12 12:23:28,862 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-12 12:23:28,865 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-12 12:23:28,867 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-12 12:23:28,869 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-12 12:23:28,870 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-12 12:23:28,873 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-12 12:23:28,880 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-12 12:23:28,889 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-12 12:23:28,891 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-12 12:23:28,893 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-12 12:23:28,895 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-12 12:23:28,897 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-12 12:23:28,900 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-12 12:23:28,907 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-12 12:23:28,907 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-12 12:23:28,908 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-12 12:23:28,909 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-12 12:23:28,910 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-12 12:23:28,911 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-12 12:23:28,912 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-12 12:23:28,912 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-12 12:23:28,912 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-12 12:23:28,913 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-12 12:23:28,914 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-12 12:23:28,915 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 12:23:28,941 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-12 12:23:28,941 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-12 12:23:28,943 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-12 12:23:28,943 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-12 12:23:28,944 INFO L138 SettingsManager]: * Use SBE=true [2020-11-12 12:23:28,944 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-12 12:23:28,944 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-12 12:23:28,944 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-12 12:23:28,945 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-12 12:23:28,945 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-12 12:23:28,945 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-12 12:23:28,945 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-12 12:23:28,945 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-12 12:23:28,946 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-12 12:23:28,946 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-12 12:23:28,946 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-12 12:23:28,946 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-12 12:23:28,947 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-12 12:23:28,947 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-12 12:23:28,947 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-12 12:23:28,947 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-12 12:23:28,947 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 12:23:28,948 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-12 12:23:28,948 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-12 12:23:28,948 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-12 12:23:28,948 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-12 12:23:28,949 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-12 12:23:28,949 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-12 12:23:28,949 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-12 12:23:28,949 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-12 12:23:28,949 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-12 12:23:29,340 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-12 12:23:29,389 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-12 12:23:29,393 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-12 12:23:29,394 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-12 12:23:29,395 INFO L275 PluginConnector]: CDTParser initialized [2020-11-12 12:23:29,396 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe022_tso.opt.i [2020-11-12 12:23:29,498 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42d29a725/240084df57ef4379b3f29d301f243a51/FLAGc6b7b245b [2020-11-12 12:23:30,261 INFO L306 CDTParser]: Found 1 translation units. [2020-11-12 12:23:30,266 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe022_tso.opt.i [2020-11-12 12:23:30,295 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42d29a725/240084df57ef4379b3f29d301f243a51/FLAGc6b7b245b [2020-11-12 12:23:30,558 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42d29a725/240084df57ef4379b3f29d301f243a51 [2020-11-12 12:23:30,562 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-12 12:23:30,570 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-12 12:23:30,571 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-12 12:23:30,572 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-12 12:23:30,575 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-12 12:23:30,577 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:23:30" (1/1) ... [2020-11-12 12:23:30,582 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ad72201 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:23:30, skipping insertion in model container [2020-11-12 12:23:30,582 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:23:30" (1/1) ... [2020-11-12 12:23:30,592 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-12 12:23:30,661 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-12 12:23:31,074 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 12:23:31,086 INFO L203 MainTranslator]: Completed pre-run [2020-11-12 12:23:31,173 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 12:23:31,319 INFO L208 MainTranslator]: Completed translation [2020-11-12 12:23:31,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:23:31 WrapperNode [2020-11-12 12:23:31,320 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-12 12:23:31,322 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-12 12:23:31,322 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-12 12:23:31,323 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-12 12:23:31,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:23:31" (1/1) ... [2020-11-12 12:23:31,356 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:23:31" (1/1) ... [2020-11-12 12:23:31,379 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-12 12:23:31,380 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-12 12:23:31,381 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-12 12:23:31,381 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-12 12:23:31,391 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:23:31" (1/1) ... [2020-11-12 12:23:31,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:23:31" (1/1) ... [2020-11-12 12:23:31,394 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:23:31" (1/1) ... [2020-11-12 12:23:31,394 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:23:31" (1/1) ... [2020-11-12 12:23:31,401 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:23:31" (1/1) ... [2020-11-12 12:23:31,404 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:23:31" (1/1) ... [2020-11-12 12:23:31,406 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:23:31" (1/1) ... [2020-11-12 12:23:31,409 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-12 12:23:31,410 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-12 12:23:31,410 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-12 12:23:31,410 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-12 12:23:31,411 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:23:31" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 12:23:31,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-12 12:23:31,487 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-12 12:23:31,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-12 12:23:31,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-12 12:23:31,488 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-12 12:23:31,488 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-12 12:23:31,488 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-12 12:23:31,488 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-12 12:23:31,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-12 12:23:31,489 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-12 12:23:31,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-12 12:23:31,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-12 12:23:31,491 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 12:23:31,884 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-12 12:23:31,884 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-12 12:23:31,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:23:31 BoogieIcfgContainer [2020-11-12 12:23:31,887 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-12 12:23:31,889 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-12 12:23:31,889 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-12 12:23:31,892 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-12 12:23:31,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:23:30" (1/3) ... [2020-11-12 12:23:31,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7099a451 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:23:31, skipping insertion in model container [2020-11-12 12:23:31,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:23:31" (2/3) ... [2020-11-12 12:23:31,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7099a451 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:23:31, skipping insertion in model container [2020-11-12 12:23:31,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:23:31" (3/3) ... [2020-11-12 12:23:31,896 INFO L111 eAbstractionObserver]: Analyzing ICFG safe022_tso.opt.i [2020-11-12 12:23:31,914 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-12 12:23:31,914 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-12 12:23:31,919 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-12 12:23:31,920 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-12 12:23:31,953 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:23:31,953 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:23:31,953 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:23:31,954 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:23:31,954 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:23:31,954 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:23:31,954 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:23:31,955 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:23:31,955 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:23:31,955 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:23:31,956 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:23:31,956 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:23:31,956 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:23:31,957 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:23:31,957 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:23:31,957 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:23:31,957 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:23:31,958 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:23:31,958 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:23:31,958 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:23:31,959 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:23:31,959 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:23:31,959 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:23:31,959 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:23:31,962 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:23:31,962 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:23:31,963 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:23:31,963 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:23:31,972 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:23:31,973 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:23:31,973 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:23:31,973 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:23:31,976 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-12 12:23:31,991 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-12 12:23:32,020 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-12 12:23:32,020 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-12 12:23:32,020 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-12 12:23:32,021 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-12 12:23:32,021 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-12 12:23:32,021 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-12 12:23:32,021 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-12 12:23:32,021 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-12 12:23:32,035 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 69 places, 65 transitions, 140 flow [2020-11-12 12:23:32,136 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1321 states, 1319 states have (on average 2.7498104624715696) internal successors, (3627), 1320 states have internal predecessors, (3627), 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 12:23:32,412 WARN L455 BasicCegarLoop]: Sleep Set Reduction Time: 273ms [2020-11-12 12:23:32,416 WARN L456 BasicCegarLoop]: Sleep set: input automaton has 1321 states, 1319 states have (on average 2.7498104624715696) internal successors, (3627), 1320 states have internal predecessors, (3627), 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 12:23:32,424 WARN L457 BasicCegarLoop]: Sleep set: output automaton has 4019 states, 3620 states have (on average 1.1577348066298343) internal successors, (4191), 4018 states have internal predecessors, (4191), 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 12:23:32,435 INFO L276 IsEmpty]: Start isEmpty. Operand has 4019 states, 3620 states have (on average 1.1577348066298343) internal successors, (4191), 4018 states have internal predecessors, (4191), 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 12:23:32,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-11-12 12:23:32,448 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:23:32,449 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] [2020-11-12 12:23:32,450 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:23:32,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:23:32,456 INFO L82 PathProgramCache]: Analyzing trace with hash 1210534896, now seen corresponding path program 1 times [2020-11-12 12:23:32,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:23:32,468 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563705729] [2020-11-12 12:23:32,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:23:32,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:23:32,912 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 12:23:32,914 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563705729] [2020-11-12 12:23:32,915 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:23:32,915 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:23:32,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417925150] [2020-11-12 12:23:32,920 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:23:32,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:23:32,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:23:32,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:23:32,954 INFO L87 Difference]: Start difference. First operand has 4019 states, 3620 states have (on average 1.1577348066298343) internal successors, (4191), 4018 states have internal predecessors, (4191), 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 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 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 12:23:33,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:23:33,284 INFO L93 Difference]: Finished difference Result 1662 states and 1783 transitions. [2020-11-12 12:23:33,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 12:23:33,286 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 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 37 [2020-11-12 12:23:33,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:23:33,313 INFO L225 Difference]: With dead ends: 1662 [2020-11-12 12:23:33,313 INFO L226 Difference]: Without dead ends: 615 [2020-11-12 12:23:33,316 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:23:33,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2020-11-12 12:23:33,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 615. [2020-11-12 12:23:33,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 615 states, 580 states have (on average 1.2155172413793103) internal successors, (705), 614 states have internal predecessors, (705), 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 12:23:33,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 705 transitions. [2020-11-12 12:23:33,422 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 705 transitions. Word has length 37 [2020-11-12 12:23:33,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:23:33,423 INFO L481 AbstractCegarLoop]: Abstraction has 615 states and 705 transitions. [2020-11-12 12:23:33,423 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 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 12:23:33,423 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 705 transitions. [2020-11-12 12:23:33,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-11-12 12:23:33,426 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:23:33,426 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] [2020-11-12 12:23:33,426 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-12 12:23:33,427 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:23:33,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:23:33,428 INFO L82 PathProgramCache]: Analyzing trace with hash 357837839, now seen corresponding path program 1 times [2020-11-12 12:23:33,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:23:33,428 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146970334] [2020-11-12 12:23:33,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:23:33,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:23:33,608 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 12:23:33,609 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146970334] [2020-11-12 12:23:33,609 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:23:33,609 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:23:33,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034678670] [2020-11-12 12:23:33,611 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:23:33,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:23:33,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:23:33,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:23:33,613 INFO L87 Difference]: Start difference. First operand 615 states and 705 transitions. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 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 12:23:33,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:23:33,777 INFO L93 Difference]: Finished difference Result 783 states and 911 transitions. [2020-11-12 12:23:33,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 12:23:33,778 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 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 39 [2020-11-12 12:23:33,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:23:33,780 INFO L225 Difference]: With dead ends: 783 [2020-11-12 12:23:33,780 INFO L226 Difference]: Without dead ends: 361 [2020-11-12 12:23:33,781 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-12 12:23:33,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2020-11-12 12:23:33,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 361. [2020-11-12 12:23:33,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 341 states have (on average 1.187683284457478) internal successors, (405), 360 states have internal predecessors, (405), 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 12:23:33,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 405 transitions. [2020-11-12 12:23:33,799 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 405 transitions. Word has length 39 [2020-11-12 12:23:33,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:23:33,799 INFO L481 AbstractCegarLoop]: Abstraction has 361 states and 405 transitions. [2020-11-12 12:23:33,799 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 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 12:23:33,799 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 405 transitions. [2020-11-12 12:23:33,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-11-12 12:23:33,801 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:23:33,801 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:23:33,801 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-12 12:23:33,802 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:23:33,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:23:33,802 INFO L82 PathProgramCache]: Analyzing trace with hash -1815316434, now seen corresponding path program 1 times [2020-11-12 12:23:33,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:23:33,803 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008152022] [2020-11-12 12:23:33,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:23:33,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:23:34,005 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 12:23:34,006 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008152022] [2020-11-12 12:23:34,006 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:23:34,006 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:23:34,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102683651] [2020-11-12 12:23:34,008 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:23:34,009 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:23:34,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:23:34,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:23:34,012 INFO L87 Difference]: Start difference. First operand 361 states and 405 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:23:34,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:23:34,136 INFO L93 Difference]: Finished difference Result 405 states and 434 transitions. [2020-11-12 12:23:34,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 12:23:34,137 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2020-11-12 12:23:34,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:23:34,139 INFO L225 Difference]: With dead ends: 405 [2020-11-12 12:23:34,139 INFO L226 Difference]: Without dead ends: 325 [2020-11-12 12:23:34,140 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 12:23:34,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2020-11-12 12:23:34,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 325. [2020-11-12 12:23:34,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 307 states have (on average 1.1530944625407167) internal successors, (354), 324 states have internal predecessors, (354), 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 12:23:34,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 354 transitions. [2020-11-12 12:23:34,150 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 354 transitions. Word has length 42 [2020-11-12 12:23:34,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:23:34,151 INFO L481 AbstractCegarLoop]: Abstraction has 325 states and 354 transitions. [2020-11-12 12:23:34,151 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:23:34,151 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 354 transitions. [2020-11-12 12:23:34,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-11-12 12:23:34,153 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:23:34,153 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 12:23:34,153 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-12 12:23:34,153 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:23:34,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:23:34,154 INFO L82 PathProgramCache]: Analyzing trace with hash 124172945, now seen corresponding path program 1 times [2020-11-12 12:23:34,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:23:34,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858423287] [2020-11-12 12:23:34,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:23:34,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:23:34,320 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 12:23:34,321 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858423287] [2020-11-12 12:23:34,321 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:23:34,321 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:23:34,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190564954] [2020-11-12 12:23:34,322 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:23:34,322 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:23:34,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:23:34,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:23:34,324 INFO L87 Difference]: Start difference. First operand 325 states and 354 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 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 12:23:34,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:23:34,450 INFO L93 Difference]: Finished difference Result 267 states and 275 transitions. [2020-11-12 12:23:34,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 12:23:34,451 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 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 12:23:34,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:23:34,452 INFO L225 Difference]: With dead ends: 267 [2020-11-12 12:23:34,452 INFO L226 Difference]: Without dead ends: 176 [2020-11-12 12:23:34,453 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 12:23:34,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2020-11-12 12:23:34,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2020-11-12 12:23:34,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 167 states have (on average 1.0479041916167664) internal successors, (175), 175 states have internal predecessors, (175), 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 12:23:34,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 175 transitions. [2020-11-12 12:23:34,459 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 175 transitions. Word has length 43 [2020-11-12 12:23:34,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:23:34,459 INFO L481 AbstractCegarLoop]: Abstraction has 176 states and 175 transitions. [2020-11-12 12:23:34,459 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 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 12:23:34,460 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 175 transitions. [2020-11-12 12:23:34,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-11-12 12:23:34,460 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:23:34,461 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:23:34,461 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-12 12:23:34,461 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:23:34,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:23:34,462 INFO L82 PathProgramCache]: Analyzing trace with hash 2045042224, now seen corresponding path program 1 times [2020-11-12 12:23:34,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:23:34,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967923112] [2020-11-12 12:23:34,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:23:34,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:23:34,602 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 12:23:34,603 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967923112] [2020-11-12 12:23:34,603 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:23:34,603 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:23:34,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068808486] [2020-11-12 12:23:34,604 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:23:34,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:23:34,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:23:34,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:23:34,606 INFO L87 Difference]: Start difference. First operand 176 states and 175 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:23:34,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:23:34,709 INFO L93 Difference]: Finished difference Result 140 states and 139 transitions. [2020-11-12 12:23:34,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-12 12:23:34,710 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2020-11-12 12:23:34,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:23:34,711 INFO L225 Difference]: With dead ends: 140 [2020-11-12 12:23:34,711 INFO L226 Difference]: Without dead ends: 0 [2020-11-12 12:23:34,711 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 12:23:34,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-12 12:23:34,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-12 12:23:34,712 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 12:23:34,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-12 12:23:34,712 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2020-11-12 12:23:34,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:23:34,713 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-12 12:23:34,713 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:23:34,713 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-12 12:23:34,713 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-12 12:23:34,713 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-12 12:23:34,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:23:34 BasicIcfg [2020-11-12 12:23:34,720 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-12 12:23:34,723 INFO L168 Benchmark]: Toolchain (without parser) took 4157.54 ms. Allocated memory was 302.0 MB in the beginning and 404.8 MB in the end (delta: 102.8 MB). Free memory was 276.1 MB in the beginning and 239.5 MB in the end (delta: 36.6 MB). Peak memory consumption was 141.3 MB. Max. memory is 16.0 GB. [2020-11-12 12:23:34,724 INFO L168 Benchmark]: CDTParser took 0.69 ms. Allocated memory is still 302.0 MB. Free memory is still 272.7 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 12:23:34,725 INFO L168 Benchmark]: CACSL2BoogieTranslator took 749.14 ms. Allocated memory is still 302.0 MB. Free memory was 275.4 MB in the beginning and 272.5 MB in the end (delta: 2.8 MB). Peak memory consumption was 24.7 MB. Max. memory is 16.0 GB. [2020-11-12 12:23:34,725 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.52 ms. Allocated memory is still 302.0 MB. Free memory was 272.5 MB in the beginning and 270.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 12:23:34,726 INFO L168 Benchmark]: Boogie Preprocessor took 28.85 ms. Allocated memory is still 302.0 MB. Free memory was 270.8 MB in the beginning and 269.6 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 12:23:34,727 INFO L168 Benchmark]: RCFGBuilder took 476.81 ms. Allocated memory is still 302.0 MB. Free memory was 269.6 MB in the beginning and 248.7 MB in the end (delta: 20.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2020-11-12 12:23:34,728 INFO L168 Benchmark]: TraceAbstraction took 2831.59 ms. Allocated memory was 302.0 MB in the beginning and 404.8 MB in the end (delta: 102.8 MB). Free memory was 248.3 MB in the beginning and 239.5 MB in the end (delta: 8.8 MB). Peak memory consumption was 114.5 MB. Max. memory is 16.0 GB. [2020-11-12 12:23:34,732 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.69 ms. Allocated memory is still 302.0 MB. Free memory is still 272.7 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 749.14 ms. Allocated memory is still 302.0 MB. Free memory was 275.4 MB in the beginning and 272.5 MB in the end (delta: 2.8 MB). Peak memory consumption was 24.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 57.52 ms. Allocated memory is still 302.0 MB. Free memory was 272.5 MB in the beginning and 270.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 28.85 ms. Allocated memory is still 302.0 MB. Free memory was 270.8 MB in the beginning and 269.6 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 476.81 ms. Allocated memory is still 302.0 MB. Free memory was 269.6 MB in the beginning and 248.7 MB in the end (delta: 20.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2831.59 ms. Allocated memory was 302.0 MB in the beginning and 404.8 MB in the end (delta: 102.8 MB). Free memory was 248.3 MB in the beginning and 239.5 MB in the end (delta: 8.8 MB). Peak memory consumption was 114.5 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 3 procedures, 63 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.4s, HoareTripleCheckerStatistics: 247 SDtfs, 308 SDslu, 942 SDs, 0 SdLazy, 115 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4019occurred 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: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 206 NumberOfCodeBlocks, 206 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 201 ConstructedInterpolants, 0 QuantifiedInterpolants, 22409 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...