/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/VMCAI2021_PN.epf -i ../../../trunk/examples/svcomp/pthread-lit/fkp2013_variant-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-11 18:49:20,594 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-11 18:49:20,596 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-11 18:49:20,622 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-11 18:49:20,622 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-11 18:49:20,623 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-11 18:49:20,624 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-11 18:49:20,626 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-11 18:49:20,628 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-11 18:49:20,628 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-11 18:49:20,629 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-11 18:49:20,630 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-11 18:49:20,631 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-11 18:49:20,632 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-11 18:49:20,635 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-11 18:49:20,636 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-11 18:49:20,636 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-11 18:49:20,639 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-11 18:49:20,642 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-11 18:49:20,643 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-11 18:49:20,647 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-11 18:49:20,650 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-11 18:49:20,651 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-11 18:49:20,652 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-11 18:49:20,657 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-11 18:49:20,661 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-11 18:49:20,662 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-11 18:49:20,663 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-11 18:49:20,664 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-11 18:49:20,665 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-11 18:49:20,665 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-11 18:49:20,666 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-11 18:49:20,666 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... 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[2020-10-11 18:49:20,669 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/VMCAI2021_PN.epf [2020-10-11 18:49:20,726 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-11 18:49:20,727 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-11 18:49:20,731 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-11 18:49:20,731 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-11 18:49:20,732 INFO L138 SettingsManager]: * Use SBE=true [2020-10-11 18:49:20,732 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-11 18:49:20,732 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-11 18:49:20,732 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-11 18:49:20,732 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-11 18:49:20,733 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-11 18:49:20,733 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-11 18:49:20,736 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-11 18:49:20,736 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-11 18:49:20,736 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-11 18:49:20,737 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-11 18:49:20,737 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-11 18:49:20,737 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-11 18:49:20,737 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-11 18:49:20,737 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-11 18:49:20,738 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-11 18:49:20,738 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-11 18:49:20,738 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 18:49:20,738 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-11 18:49:20,738 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-11 18:49:20,739 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-11 18:49:20,739 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-11 18:49:20,740 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-11 18:49:20,740 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-10-11 18:49:20,741 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-11 18:49:20,741 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-11 18:49:21,038 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-11 18:49:21,050 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-11 18:49:21,054 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-11 18:49:21,055 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-11 18:49:21,056 INFO L275 PluginConnector]: CDTParser initialized [2020-10-11 18:49:21,057 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/fkp2013_variant-2.i [2020-10-11 18:49:21,120 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c7e30a55/bbd3fbab1708434d8ce38271119834ad/FLAG58f41c014 [2020-10-11 18:49:21,610 INFO L306 CDTParser]: Found 1 translation units. [2020-10-11 18:49:21,611 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fkp2013_variant-2.i [2020-10-11 18:49:21,626 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c7e30a55/bbd3fbab1708434d8ce38271119834ad/FLAG58f41c014 [2020-10-11 18:49:21,926 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c7e30a55/bbd3fbab1708434d8ce38271119834ad [2020-10-11 18:49:21,937 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-11 18:49:21,939 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-11 18:49:21,942 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-11 18:49:21,942 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-11 18:49:21,946 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-11 18:49:21,947 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 06:49:21" (1/1) ... [2020-10-11 18:49:21,951 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f98cbf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:49:21, skipping insertion in model container [2020-10-11 18:49:21,951 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 06:49:21" (1/1) ... [2020-10-11 18:49:21,960 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-11 18:49:22,015 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-11 18:49:22,533 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 18:49:22,550 INFO L203 MainTranslator]: Completed pre-run [2020-10-11 18:49:22,587 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 18:49:22,655 INFO L208 MainTranslator]: Completed translation [2020-10-11 18:49:22,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:49:22 WrapperNode [2020-10-11 18:49:22,656 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-11 18:49:22,657 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-11 18:49:22,657 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-11 18:49:22,657 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-11 18:49:22,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:49:22" (1/1) ... [2020-10-11 18:49:22,681 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:49:22" (1/1) ... [2020-10-11 18:49:22,704 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-11 18:49:22,705 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-11 18:49:22,705 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-11 18:49:22,705 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-11 18:49:22,714 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:49:22" (1/1) ... [2020-10-11 18:49:22,714 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:49:22" (1/1) ... [2020-10-11 18:49:22,717 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:49:22" (1/1) ... [2020-10-11 18:49:22,718 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:49:22" (1/1) ... [2020-10-11 18:49:22,723 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:49:22" (1/1) ... [2020-10-11 18:49:22,728 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:49:22" (1/1) ... [2020-10-11 18:49:22,729 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:49:22" (1/1) ... [2020-10-11 18:49:22,732 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-11 18:49:22,733 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-11 18:49:22,733 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-11 18:49:22,733 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-11 18:49:22,734 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:49:22" (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 [2020-10-11 18:49:22,795 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2020-10-11 18:49:22,795 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2020-10-11 18:49:22,795 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-10-11 18:49:22,795 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-10-11 18:49:22,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-11 18:49:22,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-11 18:49:22,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-11 18:49:22,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-11 18:49:22,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-11 18:49:22,798 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-11 18:49:23,098 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-11 18:49:23,098 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-11 18:49:23,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 06:49:23 BoogieIcfgContainer [2020-10-11 18:49:23,100 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-11 18:49:23,101 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-11 18:49:23,102 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-11 18:49:23,107 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-11 18:49:23,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 06:49:21" (1/3) ... [2020-10-11 18:49:23,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39b54c68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 06:49:23, skipping insertion in model container [2020-10-11 18:49:23,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:49:22" (2/3) ... [2020-10-11 18:49:23,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39b54c68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 06:49:23, skipping insertion in model container [2020-10-11 18:49:23,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 06:49:23" (3/3) ... [2020-10-11 18:49:23,111 INFO L111 eAbstractionObserver]: Analyzing ICFG fkp2013_variant-2.i [2020-10-11 18:49:23,123 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-11 18:49:23,130 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-11 18:49:23,132 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-11 18:49:23,161 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:23,161 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:23,161 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:23,162 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:23,162 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:23,162 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:23,163 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:23,163 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:23,163 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:23,164 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:23,164 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:23,165 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:23,165 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:23,165 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:23,166 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:23,166 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:23,166 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:23,166 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:23,167 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:23,167 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:23,168 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:23,176 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:23,176 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:23,177 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:23,181 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:23,181 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:23,182 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:23,189 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:23,190 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:23,190 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:23,190 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:23,191 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:23,212 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-11 18:49:23,231 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 18:49:23,232 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-11 18:49:23,232 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 18:49:23,232 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 18:49:23,232 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 18:49:23,232 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 18:49:23,233 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 18:49:23,233 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 18:49:23,246 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 64 places, 61 transitions, 132 flow [2020-10-11 18:49:23,293 INFO L129 PetriNetUnfolder]: 4/71 cut-off events. [2020-10-11 18:49:23,294 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 18:49:23,300 INFO L80 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 71 events. 4/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 94 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 50. Up to 4 conditions per place. [2020-10-11 18:49:23,300 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 61 transitions, 132 flow [2020-10-11 18:49:23,306 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 63 places, 60 transitions, 128 flow [2020-10-11 18:49:23,322 INFO L129 PetriNetUnfolder]: 3/43 cut-off events. [2020-10-11 18:49:23,322 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 18:49:23,323 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:49:23,324 INFO L255 CegarLoopForPetriNet]: 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] [2020-10-11 18:49:23,325 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-11 18:49:23,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:49:23,332 INFO L82 PathProgramCache]: Analyzing trace with hash -305173420, now seen corresponding path program 1 times [2020-10-11 18:49:23,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:49:23,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966584930] [2020-10-11 18:49:23,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:49:23,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:49:23,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:49:23,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966584930] [2020-10-11 18:49:23,722 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:49:23,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-11 18:49:23,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629550866] [2020-10-11 18:49:23,734 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-11 18:49:23,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:49:23,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-11 18:49:23,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-11 18:49:24,341 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 61 [2020-10-11 18:49:24,343 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 60 transitions, 128 flow. Second operand 8 states. [2020-10-11 18:49:24,343 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:49:24,343 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 61 [2020-10-11 18:49:24,345 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:49:24,453 INFO L129 PetriNetUnfolder]: 3/88 cut-off events. [2020-10-11 18:49:24,454 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-11 18:49:24,454 INFO L80 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 88 events. 3/88 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 220 event pairs, 0 based on Foata normal form. 20/102 useless extension candidates. Maximal degree in co-relation 84. Up to 6 conditions per place. [2020-10-11 18:49:24,456 INFO L132 encePairwiseOnDemand]: 49/61 looper letters, 13 selfloop transitions, 11 changer transitions 1/66 dead transitions. [2020-10-11 18:49:24,457 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 66 transitions, 190 flow [2020-10-11 18:49:24,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-11 18:49:24,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-10-11 18:49:24,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 498 transitions. [2020-10-11 18:49:24,476 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.7421758569299552 [2020-10-11 18:49:24,477 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 498 transitions. [2020-10-11 18:49:24,478 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 498 transitions. [2020-10-11 18:49:24,481 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:49:24,484 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 498 transitions. [2020-10-11 18:49:24,488 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 12 states. [2020-10-11 18:49:24,502 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 12 states. [2020-10-11 18:49:24,503 INFO L81 ComplementDD]: Finished complementDD. Result 12 states. [2020-10-11 18:49:24,505 INFO L185 Difference]: Start difference. First operand has 63 places, 60 transitions, 128 flow. Second operand 11 states and 498 transitions. [2020-10-11 18:49:24,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 66 transitions, 190 flow [2020-10-11 18:49:24,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 66 transitions, 189 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-11 18:49:24,516 INFO L241 Difference]: Finished difference. Result has 76 places, 62 transitions, 173 flow [2020-10-11 18:49:24,519 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=173, PETRI_PLACES=76, PETRI_TRANSITIONS=62} [2020-10-11 18:49:24,520 INFO L341 CegarLoopForPetriNet]: 63 programPoint places, 13 predicate places. [2020-10-11 18:49:24,521 INFO L481 AbstractCegarLoop]: Abstraction has has 76 places, 62 transitions, 173 flow [2020-10-11 18:49:24,521 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-11 18:49:24,521 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:49:24,521 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:49:24,522 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-11 18:49:24,522 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-11 18:49:24,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:49:24,522 INFO L82 PathProgramCache]: Analyzing trace with hash 447630108, now seen corresponding path program 1 times [2020-10-11 18:49:24,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:49:24,523 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115362487] [2020-10-11 18:49:24,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:49:24,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-11 18:49:24,554 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-11 18:49:24,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-11 18:49:24,576 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-11 18:49:24,607 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-11 18:49:24,608 INFO L519 BasicCegarLoop]: Counterexample might be feasible [2020-10-11 18:49:24,609 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-11 18:49:24,610 WARN L371 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-11 18:49:24,611 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-10-11 18:49:24,628 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,628 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,628 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,629 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,629 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,629 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,629 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,629 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,629 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,630 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,630 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,630 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,630 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,630 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,630 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,630 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,631 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,631 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,631 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,631 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,631 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,632 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,632 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,632 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,632 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,632 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,633 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,633 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,633 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,633 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,634 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,634 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,634 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,634 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,635 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,635 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,635 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,635 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,635 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,636 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,636 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,636 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,637 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,637 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,637 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,637 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,638 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,638 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,639 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,640 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,640 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,640 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,640 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,641 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,643 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,643 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,644 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,644 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,644 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,646 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,646 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,646 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,647 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,647 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:24,648 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-11 18:49:24,649 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 18:49:24,649 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-11 18:49:24,649 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 18:49:24,649 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 18:49:24,649 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 18:49:24,649 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 18:49:24,650 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 18:49:24,650 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 18:49:24,653 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 85 places, 79 transitions, 182 flow [2020-10-11 18:49:24,670 INFO L129 PetriNetUnfolder]: 5/93 cut-off events. [2020-10-11 18:49:24,670 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-11 18:49:24,672 INFO L80 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 93 events. 5/93 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 135 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 102. Up to 6 conditions per place. [2020-10-11 18:49:24,672 INFO L82 GeneralOperation]: Start removeDead. Operand has 85 places, 79 transitions, 182 flow [2020-10-11 18:49:24,673 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 67 transitions, 149 flow [2020-10-11 18:49:24,681 INFO L129 PetriNetUnfolder]: 3/44 cut-off events. [2020-10-11 18:49:24,682 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 18:49:24,682 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:49:24,682 INFO L255 CegarLoopForPetriNet]: 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] [2020-10-11 18:49:24,682 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:49:24,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:49:24,683 INFO L82 PathProgramCache]: Analyzing trace with hash 224627827, now seen corresponding path program 1 times [2020-10-11 18:49:24,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:49:24,683 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792469160] [2020-10-11 18:49:24,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:49:24,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:49:24,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:49:24,825 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792469160] [2020-10-11 18:49:24,825 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:49:24,825 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-11 18:49:24,826 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007527213] [2020-10-11 18:49:24,826 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-11 18:49:24,826 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:49:24,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-11 18:49:24,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-11 18:49:25,455 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 79 [2020-10-11 18:49:25,456 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 67 transitions, 149 flow. Second operand 8 states. [2020-10-11 18:49:25,456 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:49:25,456 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 79 [2020-10-11 18:49:25,456 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:49:25,564 INFO L129 PetriNetUnfolder]: 24/173 cut-off events. [2020-10-11 18:49:25,565 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2020-10-11 18:49:25,566 INFO L80 FinitePrefix]: Finished finitePrefix Result has 255 conditions, 173 events. 24/173 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 671 event pairs, 4 based on Foata normal form. 49/205 useless extension candidates. Maximal degree in co-relation 214. Up to 25 conditions per place. [2020-10-11 18:49:25,568 INFO L132 encePairwiseOnDemand]: 66/79 looper letters, 21 selfloop transitions, 14 changer transitions 1/83 dead transitions. [2020-10-11 18:49:25,568 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 83 transitions, 253 flow [2020-10-11 18:49:25,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-11 18:49:25,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-10-11 18:49:25,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 685 transitions. [2020-10-11 18:49:25,572 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.7882623705408516 [2020-10-11 18:49:25,572 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 685 transitions. [2020-10-11 18:49:25,573 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 685 transitions. [2020-10-11 18:49:25,573 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:49:25,573 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 685 transitions. [2020-10-11 18:49:25,575 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 12 states. [2020-10-11 18:49:25,578 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 12 states. [2020-10-11 18:49:25,578 INFO L81 ComplementDD]: Finished complementDD. Result 12 states. [2020-10-11 18:49:25,578 INFO L185 Difference]: Start difference. First operand has 72 places, 67 transitions, 149 flow. Second operand 11 states and 685 transitions. [2020-10-11 18:49:25,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 83 transitions, 253 flow [2020-10-11 18:49:25,580 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 83 transitions, 250 flow, removed 1 selfloop flow, removed 1 redundant places. [2020-10-11 18:49:25,582 INFO L241 Difference]: Finished difference. Result has 86 places, 73 transitions, 226 flow [2020-10-11 18:49:25,582 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=226, PETRI_PLACES=86, PETRI_TRANSITIONS=73} [2020-10-11 18:49:25,583 INFO L341 CegarLoopForPetriNet]: 72 programPoint places, 14 predicate places. [2020-10-11 18:49:25,583 INFO L481 AbstractCegarLoop]: Abstraction has has 86 places, 73 transitions, 226 flow [2020-10-11 18:49:25,583 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-11 18:49:25,583 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:49:25,583 INFO L255 CegarLoopForPetriNet]: 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] [2020-10-11 18:49:25,583 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-11 18:49:25,584 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:49:25,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:49:25,584 INFO L82 PathProgramCache]: Analyzing trace with hash -215147791, now seen corresponding path program 1 times [2020-10-11 18:49:25,584 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:49:25,585 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914478119] [2020-10-11 18:49:25,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:49:25,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-11 18:49:25,604 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-11 18:49:25,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-11 18:49:25,619 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-11 18:49:25,628 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-11 18:49:25,628 INFO L519 BasicCegarLoop]: Counterexample might be feasible [2020-10-11 18:49:25,629 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-11 18:49:25,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 06:49:25 BasicIcfg [2020-10-11 18:49:25,686 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-11 18:49:25,689 INFO L168 Benchmark]: Toolchain (without parser) took 3749.81 ms. Allocated memory was 250.1 MB in the beginning and 368.6 MB in the end (delta: 118.5 MB). Free memory was 205.9 MB in the beginning and 288.7 MB in the end (delta: -82.9 MB). Peak memory consumption was 35.6 MB. Max. memory is 14.2 GB. [2020-10-11 18:49:25,690 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 250.1 MB. Free memory is still 226.5 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 18:49:25,691 INFO L168 Benchmark]: CACSL2BoogieTranslator took 714.18 ms. Allocated memory was 250.1 MB in the beginning and 309.3 MB in the end (delta: 59.2 MB). Free memory was 205.9 MB in the beginning and 264.7 MB in the end (delta: -58.9 MB). Peak memory consumption was 33.5 MB. Max. memory is 14.2 GB. [2020-10-11 18:49:25,692 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.74 ms. Allocated memory is still 309.3 MB. Free memory was 264.7 MB in the beginning and 262.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 18:49:25,692 INFO L168 Benchmark]: Boogie Preprocessor took 27.95 ms. Allocated memory is still 309.3 MB. Free memory is still 262.2 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 18:49:25,693 INFO L168 Benchmark]: RCFGBuilder took 367.42 ms. Allocated memory is still 309.3 MB. Free memory was 262.2 MB in the beginning and 240.4 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 14.2 GB. [2020-10-11 18:49:25,694 INFO L168 Benchmark]: TraceAbstraction took 2585.11 ms. Allocated memory was 309.3 MB in the beginning and 368.6 MB in the end (delta: 59.2 MB). Free memory was 240.4 MB in the beginning and 288.7 MB in the end (delta: -48.4 MB). Peak memory consumption was 10.9 MB. Max. memory is 14.2 GB. [2020-10-11 18:49:25,699 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 250.1 MB. Free memory is still 226.5 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 714.18 ms. Allocated memory was 250.1 MB in the beginning and 309.3 MB in the end (delta: 59.2 MB). Free memory was 205.9 MB in the beginning and 264.7 MB in the end (delta: -58.9 MB). Peak memory consumption was 33.5 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 47.74 ms. Allocated memory is still 309.3 MB. Free memory was 264.7 MB in the beginning and 262.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 27.95 ms. Allocated memory is still 309.3 MB. Free memory is still 262.2 MB. There was no memory consumed. Max. memory is 14.2 GB. * RCFGBuilder took 367.42 ms. Allocated memory is still 309.3 MB. Free memory was 262.2 MB in the beginning and 240.4 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 14.2 GB. * TraceAbstraction took 2585.11 ms. Allocated memory was 309.3 MB in the beginning and 368.6 MB in the end (delta: 59.2 MB). Free memory was 240.4 MB in the beginning and 288.7 MB in the end (delta: -48.4 MB). Peak memory consumption was 10.9 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 679]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L686] 0 volatile int x; VAL [x=0] [L687] 0 volatile int n; VAL [n=0, x=0] [L699] 0 pthread_t t1, t2; VAL [n=0, x=0] [L700] 0 int i; VAL [n=0, x=0] [L701] 0 x = 0 VAL [n=0, x=0] [L702] 0 n = __VERIFIER_nondet_int() VAL [n=1, x=0] [L675] COND FALSE 0 !(!cond) VAL [n=1, x=0] [L704] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [n=1, x=0] [L705] 0 i = 0 VAL [n=1, x=0] [L705] COND TRUE 0 i < n VAL [n=1, x=0] [L706] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [arg={0:0}, n=1, x=0] [L693] 2 int t; VAL [arg={0:0}, arg={0:0}, n=1, x=0] [L694] 2 t = x VAL [arg={0:0}, arg={0:0}, n=1, t=0, x=0] [L695] 2 x = t + 1 VAL [arg={0:0}, arg={0:0}, n=1, t=0, x=1] [L678] COND TRUE 1 !(cond) VAL [arg={0:0}, arg={0:0}, n=1, t=0, x=1] [L679] 1 __VERIFIER_error() VAL [arg={0:0}, arg={0:0}, n=1, t=0, x=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 58 locations, 1 error locations. Started 2 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 2.3s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 124 SDtfs, 146 SDslu, 225 SDs, 0 SdLazy, 313 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=226occurred in iteration=1, 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, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 131 NumberOfCodeBlocks, 131 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 56 ConstructedInterpolants, 0 QuantifiedInterpolants, 5544 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 incorrect! Received shutdown request...