/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.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe022_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-e5469eb [2021-01-20 14:47:02,625 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-20 14:47:02,628 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-20 14:47:02,677 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-20 14:47:02,677 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-20 14:47:02,679 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-20 14:47:02,680 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-20 14:47:02,683 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-20 14:47:02,685 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-20 14:47:02,686 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-20 14:47:02,687 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-20 14:47:02,688 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-20 14:47:02,689 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-20 14:47:02,690 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-20 14:47:02,691 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-20 14:47:02,693 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-20 14:47:02,694 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-20 14:47:02,695 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-20 14:47:02,697 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-20 14:47:02,699 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-20 14:47:02,701 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-20 14:47:02,703 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-20 14:47:02,704 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-20 14:47:02,705 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-20 14:47:02,708 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-20 14:47:02,712 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-20 14:47:02,713 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-20 14:47:02,714 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-20 14:47:02,715 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-20 14:47:02,716 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-20 14:47:02,717 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-20 14:47:02,717 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-20 14:47:02,718 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-20 14:47:02,718 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-20 14:47:02,719 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-20 14:47:02,720 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-20 14:47:02,721 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.epf [2021-01-20 14:47:02,755 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-20 14:47:02,755 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-20 14:47:02,756 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-20 14:47:02,757 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-20 14:47:02,757 INFO L138 SettingsManager]: * Use SBE=true [2021-01-20 14:47:02,757 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-20 14:47:02,757 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-20 14:47:02,758 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-20 14:47:02,758 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-20 14:47:02,758 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-20 14:47:02,758 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-20 14:47:02,759 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-20 14:47:02,759 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-20 14:47:02,759 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-20 14:47:02,759 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-20 14:47:02,760 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-20 14:47:02,760 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-20 14:47:02,760 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-20 14:47:02,760 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-20 14:47:02,761 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-20 14:47:02,761 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-20 14:47:02,761 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 14:47:02,761 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-20 14:47:02,762 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-20 14:47:02,762 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-20 14:47:02,762 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-20 14:47:02,762 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-20 14:47:02,762 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-20 14:47:02,763 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-20 14:47:02,763 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-20 14:47:02,763 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-20 14:47:03,112 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-20 14:47:03,144 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-20 14:47:03,150 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-20 14:47:03,151 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-20 14:47:03,153 INFO L275 PluginConnector]: CDTParser initialized [2021-01-20 14:47:03,154 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe022_tso.opt.i [2021-01-20 14:47:03,227 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3eaaabb06/aa273b3b019043c9a9f36c28687483cf/FLAG890ff01a3 [2021-01-20 14:47:03,996 INFO L306 CDTParser]: Found 1 translation units. [2021-01-20 14:47:03,998 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe022_tso.opt.i [2021-01-20 14:47:04,026 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3eaaabb06/aa273b3b019043c9a9f36c28687483cf/FLAG890ff01a3 [2021-01-20 14:47:04,047 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3eaaabb06/aa273b3b019043c9a9f36c28687483cf [2021-01-20 14:47:04,052 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-20 14:47:04,055 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-20 14:47:04,058 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-20 14:47:04,058 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-20 14:47:04,062 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-20 14:47:04,064 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 02:47:04" (1/1) ... [2021-01-20 14:47:04,072 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c5c8667 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:47:04, skipping insertion in model container [2021-01-20 14:47:04,072 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 02:47:04" (1/1) ... [2021-01-20 14:47:04,080 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-20 14:47:04,143 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-20 14:47:04,488 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 14:47:04,501 INFO L203 MainTranslator]: Completed pre-run [2021-01-20 14:47:04,583 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 14:47:04,684 INFO L208 MainTranslator]: Completed translation [2021-01-20 14:47:04,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:47:04 WrapperNode [2021-01-20 14:47:04,685 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-20 14:47:04,686 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-20 14:47:04,686 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-20 14:47:04,686 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-20 14:47:04,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:47:04" (1/1) ... [2021-01-20 14:47:04,711 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:47:04" (1/1) ... [2021-01-20 14:47:04,733 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-20 14:47:04,734 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-20 14:47:04,734 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-20 14:47:04,734 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-20 14:47:04,742 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:47:04" (1/1) ... [2021-01-20 14:47:04,743 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:47:04" (1/1) ... [2021-01-20 14:47:04,746 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:47:04" (1/1) ... [2021-01-20 14:47:04,747 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:47:04" (1/1) ... [2021-01-20 14:47:04,753 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:47:04" (1/1) ... [2021-01-20 14:47:04,755 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:47:04" (1/1) ... [2021-01-20 14:47:04,758 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:47:04" (1/1) ... [2021-01-20 14:47:04,761 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-20 14:47:04,762 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-20 14:47:04,762 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-20 14:47:04,762 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-20 14:47:04,763 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:47:04" (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 [2021-01-20 14:47:04,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-20 14:47:04,894 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-20 14:47:04,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-20 14:47:04,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-20 14:47:04,895 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-20 14:47:04,895 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-20 14:47:04,895 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-20 14:47:04,895 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-20 14:47:04,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-20 14:47:04,896 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-20 14:47:04,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-20 14:47:04,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-20 14:47:04,898 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-20 14:47:05,487 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-20 14:47:05,487 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-20 14:47:05,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 02:47:05 BoogieIcfgContainer [2021-01-20 14:47:05,490 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-20 14:47:05,494 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-20 14:47:05,494 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-20 14:47:05,498 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-20 14:47:05,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 02:47:04" (1/3) ... [2021-01-20 14:47:05,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12443094 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 02:47:05, skipping insertion in model container [2021-01-20 14:47:05,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:47:04" (2/3) ... [2021-01-20 14:47:05,501 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12443094 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 02:47:05, skipping insertion in model container [2021-01-20 14:47:05,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 02:47:05" (3/3) ... [2021-01-20 14:47:05,503 INFO L111 eAbstractionObserver]: Analyzing ICFG safe022_tso.opt.i [2021-01-20 14:47:05,520 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-20 14:47:05,520 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-20 14:47:05,524 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-20 14:47:05,525 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-20 14:47:05,569 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:47:05,570 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:47:05,570 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:47:05,570 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:47:05,570 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:47:05,571 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:47:05,571 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:47:05,571 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:47:05,572 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:47:05,573 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:47:05,573 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:47:05,573 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:47:05,574 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:47:05,574 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:47:05,574 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:47:05,574 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:47:05,575 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:47:05,575 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:47:05,575 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:47:05,575 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:47:05,576 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:47:05,576 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:47:05,576 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:47:05,576 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:47:05,580 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:47:05,581 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:47:05,581 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:47:05,582 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:47:05,588 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:47:05,588 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:47:05,589 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:47:05,589 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:47:05,593 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-20 14:47:05,605 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-01-20 14:47:05,643 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-20 14:47:05,644 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-20 14:47:05,644 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-20 14:47:05,644 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-20 14:47:05,644 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-20 14:47:05,644 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-20 14:47:05,644 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-20 14:47:05,644 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-20 14:47:05,655 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 69 places, 65 transitions, 140 flow [2021-01-20 14:47:05,745 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) [2021-01-20 14:47:05,752 INFO L276 IsEmpty]: Start isEmpty. Operand 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) [2021-01-20 14:47:05,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-01-20 14:47:05,784 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:47:05,785 INFO L504 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] [2021-01-20 14:47:05,785 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:47:05,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:47:05,792 INFO L82 PathProgramCache]: Analyzing trace with hash 1210534896, now seen corresponding path program 1 times [2021-01-20 14:47:05,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:47:05,803 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246439780] [2021-01-20 14:47:05,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:47:06,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:47:06,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:47:06,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246439780] [2021-01-20 14:47:06,330 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:47:06,330 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:47:06,331 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201857402] [2021-01-20 14:47:06,336 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:47:06,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:47:06,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:47:06,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:47:06,358 INFO L87 Difference]: Start difference. First operand 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) 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) [2021-01-20 14:47:06,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:47:06,563 INFO L93 Difference]: Finished difference Result 1587 states and 4135 transitions. [2021-01-20 14:47:06,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 14:47:06,565 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 [2021-01-20 14:47:06,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:47:06,584 INFO L225 Difference]: With dead ends: 1587 [2021-01-20 14:47:06,584 INFO L226 Difference]: Without dead ends: 670 [2021-01-20 14:47:06,586 INFO L769 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 [2021-01-20 14:47:06,586 INFO L78 Accepts]: Start accepts. Automaton has 670 states. Word has length 37 [2021-01-20 14:47:06,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:47:06,588 INFO L481 AbstractCegarLoop]: Abstraction has 670 states. [2021-01-20 14:47:06,589 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) [2021-01-20 14:47:06,589 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states. [2021-01-20 14:47:06,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-01-20 14:47:06,594 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:47:06,595 INFO L504 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] [2021-01-20 14:47:06,595 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-20 14:47:06,595 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:47:06,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:47:06,596 INFO L82 PathProgramCache]: Analyzing trace with hash -1963823439, now seen corresponding path program 1 times [2021-01-20 14:47:06,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:47:06,597 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092026400] [2021-01-20 14:47:06,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:47:06,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:47:06,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:47:06,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092026400] [2021-01-20 14:47:06,846 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:47:06,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:47:06,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279820269] [2021-01-20 14:47:06,848 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:47:06,851 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:47:06,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:47:06,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:47:06,852 INFO L87 Difference]: Start difference. First operand 670 states. 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) [2021-01-20 14:47:07,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:47:07,067 INFO L93 Difference]: Finished difference Result 830 states and 2070 transitions. [2021-01-20 14:47:07,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 14:47:07,068 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 [2021-01-20 14:47:07,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:47:07,071 INFO L225 Difference]: With dead ends: 830 [2021-01-20 14:47:07,071 INFO L226 Difference]: Without dead ends: 445 [2021-01-20 14:47:07,072 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-01-20 14:47:07,073 INFO L78 Accepts]: Start accepts. Automaton has 445 states. Word has length 39 [2021-01-20 14:47:07,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:47:07,073 INFO L481 AbstractCegarLoop]: Abstraction has 445 states. [2021-01-20 14:47:07,074 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) [2021-01-20 14:47:07,074 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states. [2021-01-20 14:47:07,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-01-20 14:47:07,076 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:47:07,076 INFO L504 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] [2021-01-20 14:47:07,076 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-20 14:47:07,077 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:47:07,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:47:07,077 INFO L82 PathProgramCache]: Analyzing trace with hash 1149488442, now seen corresponding path program 1 times [2021-01-20 14:47:07,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:47:07,078 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830798746] [2021-01-20 14:47:07,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:47:07,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:47:07,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:47:07,222 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830798746] [2021-01-20 14:47:07,223 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:47:07,223 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:47:07,223 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401446645] [2021-01-20 14:47:07,224 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:47:07,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:47:07,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:47:07,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:47:07,225 INFO L87 Difference]: Start difference. First operand 445 states. 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) [2021-01-20 14:47:07,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:47:07,437 INFO L93 Difference]: Finished difference Result 515 states and 1206 transitions. [2021-01-20 14:47:07,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 14:47:07,438 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 [2021-01-20 14:47:07,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:47:07,441 INFO L225 Difference]: With dead ends: 515 [2021-01-20 14:47:07,441 INFO L226 Difference]: Without dead ends: 379 [2021-01-20 14:47:07,442 INFO L769 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 [2021-01-20 14:47:07,442 INFO L78 Accepts]: Start accepts. Automaton has 379 states. Word has length 42 [2021-01-20 14:47:07,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:47:07,442 INFO L481 AbstractCegarLoop]: Abstraction has 379 states. [2021-01-20 14:47:07,443 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) [2021-01-20 14:47:07,443 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states. [2021-01-20 14:47:07,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-01-20 14:47:07,445 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:47:07,445 INFO L504 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] [2021-01-20 14:47:07,445 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-20 14:47:07,445 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:47:07,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:47:07,446 INFO L82 PathProgramCache]: Analyzing trace with hash 1597818113, now seen corresponding path program 1 times [2021-01-20 14:47:07,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:47:07,447 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303152047] [2021-01-20 14:47:07,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:47:07,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:47:07,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:47:07,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303152047] [2021-01-20 14:47:07,661 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:47:07,661 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:47:07,661 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305549625] [2021-01-20 14:47:07,662 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:47:07,662 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:47:07,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:47:07,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:47:07,664 INFO L87 Difference]: Start difference. First operand 379 states. 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) [2021-01-20 14:47:07,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:47:07,869 INFO L93 Difference]: Finished difference Result 328 states and 721 transitions. [2021-01-20 14:47:07,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 14:47:07,870 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 [2021-01-20 14:47:07,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:47:07,872 INFO L225 Difference]: With dead ends: 328 [2021-01-20 14:47:07,872 INFO L226 Difference]: Without dead ends: 232 [2021-01-20 14:47:07,873 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-01-20 14:47:07,873 INFO L78 Accepts]: Start accepts. Automaton has 232 states. Word has length 43 [2021-01-20 14:47:07,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:47:07,874 INFO L481 AbstractCegarLoop]: Abstraction has 232 states. [2021-01-20 14:47:07,874 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) [2021-01-20 14:47:07,874 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states. [2021-01-20 14:47:07,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-01-20 14:47:07,875 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:47:07,876 INFO L504 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] [2021-01-20 14:47:07,876 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-20 14:47:07,876 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:47:07,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:47:07,877 INFO L82 PathProgramCache]: Analyzing trace with hash 878840992, now seen corresponding path program 1 times [2021-01-20 14:47:07,877 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:47:07,877 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372336240] [2021-01-20 14:47:07,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:47:07,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:47:08,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:47:08,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372336240] [2021-01-20 14:47:08,034 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:47:08,035 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:47:08,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304179651] [2021-01-20 14:47:08,035 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:47:08,036 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:47:08,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:47:08,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:47:08,037 INFO L87 Difference]: Start difference. First operand 232 states. 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) [2021-01-20 14:47:08,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:47:08,141 INFO L93 Difference]: Finished difference Result 196 states and 402 transitions. [2021-01-20 14:47:08,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-20 14:47:08,142 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 [2021-01-20 14:47:08,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:47:08,142 INFO L225 Difference]: With dead ends: 196 [2021-01-20 14:47:08,143 INFO L226 Difference]: Without dead ends: 0 [2021-01-20 14:47:08,143 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:47:08,143 INFO L78 Accepts]: Start accepts. Automaton has 0 states. Word has length 45 [2021-01-20 14:47:08,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:47:08,144 INFO L481 AbstractCegarLoop]: Abstraction has 0 states. [2021-01-20 14:47:08,144 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) [2021-01-20 14:47:08,146 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states. [2021-01-20 14:47:08,146 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-20 14:47:08,146 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-20 14:47:08,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 02:47:08 BasicIcfg [2021-01-20 14:47:08,151 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-20 14:47:08,155 INFO L168 Benchmark]: Toolchain (without parser) took 4098.03 ms. Allocated memory was 302.0 MB in the beginning and 367.0 MB in the end (delta: 65.0 MB). Free memory was 276.9 MB in the beginning and 298.9 MB in the end (delta: -22.0 MB). Peak memory consumption was 44.7 MB. Max. memory is 16.0 GB. [2021-01-20 14:47:08,157 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 302.0 MB. Free memory was 272.1 MB in the beginning and 272.1 MB in the end (delta: 65.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 14:47:08,159 INFO L168 Benchmark]: CACSL2BoogieTranslator took 627.08 ms. Allocated memory is still 302.0 MB. Free memory was 276.6 MB in the beginning and 246.3 MB in the end (delta: 30.3 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2021-01-20 14:47:08,161 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.06 ms. Allocated memory is still 302.0 MB. Free memory was 246.3 MB in the beginning and 244.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-20 14:47:08,166 INFO L168 Benchmark]: Boogie Preprocessor took 27.39 ms. Allocated memory is still 302.0 MB. Free memory was 244.4 MB in the beginning and 243.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 14:47:08,166 INFO L168 Benchmark]: RCFGBuilder took 727.97 ms. Allocated memory is still 302.0 MB. Free memory was 243.0 MB in the beginning and 262.7 MB in the end (delta: -19.7 MB). Peak memory consumption was 4.4 MB. Max. memory is 16.0 GB. [2021-01-20 14:47:08,167 INFO L168 Benchmark]: TraceAbstraction took 2657.75 ms. Allocated memory was 302.0 MB in the beginning and 367.0 MB in the end (delta: 65.0 MB). Free memory was 262.7 MB in the beginning and 298.9 MB in the end (delta: -36.2 MB). Peak memory consumption was 29.9 MB. Max. memory is 16.0 GB. [2021-01-20 14:47:08,178 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 302.0 MB. Free memory was 272.1 MB in the beginning and 272.1 MB in the end (delta: 65.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 627.08 ms. Allocated memory is still 302.0 MB. Free memory was 276.6 MB in the beginning and 246.3 MB in the end (delta: 30.3 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 47.06 ms. Allocated memory is still 302.0 MB. Free memory was 246.3 MB in the beginning and 244.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 27.39 ms. Allocated memory is still 302.0 MB. Free memory was 244.4 MB in the beginning and 243.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 727.97 ms. Allocated memory is still 302.0 MB. Free memory was 243.0 MB in the beginning and 262.7 MB in the end (delta: -19.7 MB). Peak memory consumption was 4.4 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2657.75 ms. Allocated memory was 302.0 MB in the beginning and 367.0 MB in the end (delta: 65.0 MB). Free memory was 262.7 MB in the beginning and 298.9 MB in the end (delta: -36.2 MB). Peak memory consumption was 29.9 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: 2.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 350 SDtfs, 466 SDslu, 1109 SDs, 0 SdLazy, 143 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1321occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 206 NumberOfCodeBlocks, 206 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 201 ConstructedInterpolants, 0 QuantifiedInterpolants, 21553 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...