/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/forkJoinInLoop.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-770125f [2021-05-22 01:23:10,696 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-22 01:23:10,698 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-22 01:23:10,714 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-05-22 01:23:10,715 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-05-22 01:23:10,715 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-05-22 01:23:10,716 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-05-22 01:23:10,717 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-05-22 01:23:10,718 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-05-22 01:23:10,719 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-05-22 01:23:10,719 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-05-22 01:23:10,720 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-05-22 01:23:10,720 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-22 01:23:10,721 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-22 01:23:10,721 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-22 01:23:10,722 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-22 01:23:10,722 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-22 01:23:10,723 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-22 01:23:10,724 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-22 01:23:10,725 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-22 01:23:10,726 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-22 01:23:10,726 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-22 01:23:10,727 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-22 01:23:10,727 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-22 01:23:10,729 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-22 01:23:10,734 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-22 01:23:10,734 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-22 01:23:10,735 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-22 01:23:10,740 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-Separate.epf [2021-05-22 01:23:10,765 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-22 01:23:10,765 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-22 01:23:10,765 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-05-22 01:23:10,765 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-05-22 01:23:10,767 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-05-22 01:23:10,767 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-05-22 01:23:10,767 INFO L138 SettingsManager]: * Use SBE=true [2021-05-22 01:23:10,768 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-22 01:23:10,768 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-22 01:23:10,768 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-22 01:23:10,768 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-22 01:23:10,768 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-22 01:23:10,769 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-22 01:23:10,769 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-22 01:23:10,769 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-22 01:23:10,769 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-22 01:23:10,769 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-22 01:23:10,769 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-22 01:23:10,769 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-22 01:23:10,769 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-22 01:23:10,769 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-22 01:23:10,770 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-22 01:23:10,770 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-22 01:23:10,770 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-22 01:23:10,770 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-22 01:23:10,770 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-05-22 01:23:10,770 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-05-22 01:23:10,770 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-22 01:23:10,770 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-05-22 01:23:10,771 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-05-22 01:23:10,771 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-22 01:23:10,771 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-05-22 01:23:10,771 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-22 01:23:11,015 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-22 01:23:11,034 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-22 01:23:11,035 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-22 01:23:11,036 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-22 01:23:11,037 INFO L275 PluginConnector]: CDTParser initialized [2021-05-22 01:23:11,037 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/forkJoinInLoop.c [2021-05-22 01:23:11,097 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a831ee97e/5780b9dae5da495eaf0b8dfd2a495ac4/FLAGd532b7f46 [2021-05-22 01:23:11,432 INFO L306 CDTParser]: Found 1 translation units. [2021-05-22 01:23:11,432 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/forkJoinInLoop.c [2021-05-22 01:23:11,432 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-05-22 01:23:11,432 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2021-05-22 01:23:11,457 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a831ee97e/5780b9dae5da495eaf0b8dfd2a495ac4/FLAGd532b7f46 [2021-05-22 01:23:11,472 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a831ee97e/5780b9dae5da495eaf0b8dfd2a495ac4 [2021-05-22 01:23:11,474 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-22 01:23:11,476 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-22 01:23:11,477 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-22 01:23:11,478 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-22 01:23:11,480 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-22 01:23:11,480 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.05 01:23:11" (1/1) ... [2021-05-22 01:23:11,481 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3deb2dfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 01:23:11, skipping insertion in model container [2021-05-22 01:23:11,481 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.05 01:23:11" (1/1) ... [2021-05-22 01:23:11,488 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-22 01:23:11,497 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-22 01:23:11,657 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-22 01:23:11,664 INFO L203 MainTranslator]: Completed pre-run [2021-05-22 01:23:11,672 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-22 01:23:11,681 INFO L208 MainTranslator]: Completed translation [2021-05-22 01:23:11,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 01:23:11 WrapperNode [2021-05-22 01:23:11,682 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-22 01:23:11,683 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-05-22 01:23:11,683 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-05-22 01:23:11,683 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-05-22 01:23:11,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 01:23:11" (1/1) ... [2021-05-22 01:23:11,692 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 01:23:11" (1/1) ... [2021-05-22 01:23:11,704 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-05-22 01:23:11,705 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-22 01:23:11,705 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-22 01:23:11,705 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-22 01:23:11,709 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 01:23:11" (1/1) ... [2021-05-22 01:23:11,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 01:23:11" (1/1) ... [2021-05-22 01:23:11,718 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 01:23:11" (1/1) ... [2021-05-22 01:23:11,718 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 01:23:11" (1/1) ... [2021-05-22 01:23:11,725 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 01:23:11" (1/1) ... [2021-05-22 01:23:11,727 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 01:23:11" (1/1) ... [2021-05-22 01:23:11,728 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 01:23:11" (1/1) ... [2021-05-22 01:23:11,729 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-22 01:23:11,729 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-22 01:23:11,729 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-22 01:23:11,729 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-22 01:23:11,730 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 01:23:11" (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 [2021-05-22 01:23:11,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-22 01:23:11,786 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-05-22 01:23:11,787 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-05-22 01:23:11,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-22 01:23:11,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-22 01:23:11,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-22 01:23:11,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-22 01:23:11,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-22 01:23:11,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-22 01:23:11,790 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-05-22 01:23:12,000 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-22 01:23:12,001 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-05-22 01:23:12,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.05 01:23:12 BoogieIcfgContainer [2021-05-22 01:23:12,001 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-22 01:23:12,002 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-22 01:23:12,002 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-22 01:23:12,004 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-22 01:23:12,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.05 01:23:11" (1/3) ... [2021-05-22 01:23:12,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@516d5a06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.05 01:23:12, skipping insertion in model container [2021-05-22 01:23:12,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 01:23:11" (2/3) ... [2021-05-22 01:23:12,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@516d5a06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.05 01:23:12, skipping insertion in model container [2021-05-22 01:23:12,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.05 01:23:12" (3/3) ... [2021-05-22 01:23:12,006 INFO L111 eAbstractionObserver]: Analyzing ICFG forkJoinInLoop.c [2021-05-22 01:23:12,010 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-05-22 01:23:12,010 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-05-22 01:23:12,010 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-05-22 01:23:12,011 INFO L478 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-05-22 01:23:12,025 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~i.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 01:23:12,025 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~i.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 01:23:12,025 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~i.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 01:23:12,025 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~i.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 01:23:12,025 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~i.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 01:23:12,025 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~i.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 01:23:12,025 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~i.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 01:23:12,026 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~i.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 01:23:12,026 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~y~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 01:23:12,026 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~y~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 01:23:12,027 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~i.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 01:23:12,027 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~y~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 01:23:12,027 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 01:23:12,027 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 01:23:12,027 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~i.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 01:23:12,057 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-05-22 01:23:12,075 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-22 01:23:12,097 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-22 01:23:12,097 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-22 01:23:12,097 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-22 01:23:12,097 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-22 01:23:12,097 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-22 01:23:12,098 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-22 01:23:12,098 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-22 01:23:12,098 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-22 01:23:12,104 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 51 places, 49 transitions, 106 flow [2021-05-22 01:23:12,117 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 65 states, 63 states have (on average 1.3333333333333333) internal successors, (84), 64 states have internal predecessors, (84), 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) [2021-05-22 01:23:12,119 INFO L276 IsEmpty]: Start isEmpty. Operand has 65 states, 63 states have (on average 1.3333333333333333) internal successors, (84), 64 states have internal predecessors, (84), 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) [2021-05-22 01:23:12,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-05-22 01:23:12,123 INFO L513 BasicCegarLoop]: Found error trace [2021-05-22 01:23:12,123 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-22 01:23:12,124 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-22 01:23:12,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-22 01:23:12,131 INFO L82 PathProgramCache]: Analyzing trace with hash -669004956, now seen corresponding path program 1 times [2021-05-22 01:23:12,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-22 01:23:12,137 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134578349] [2021-05-22 01:23:12,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-22 01:23:12,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-22 01:23:12,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-22 01:23:12,260 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-22 01:23:12,260 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134578349] [2021-05-22 01:23:12,261 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134578349] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-22 01:23:12,261 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-22 01:23:12,261 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-05-22 01:23:12,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396579732] [2021-05-22 01:23:12,264 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-05-22 01:23:12,265 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-22 01:23:12,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-05-22 01:23:12,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-05-22 01:23:12,281 INFO L87 Difference]: Start difference. First operand has 65 states, 63 states have (on average 1.3333333333333333) internal successors, (84), 64 states have internal predecessors, (84), 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 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2021-05-22 01:23:12,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-22 01:23:12,295 INFO L93 Difference]: Finished difference Result 57 states and 75 transitions. [2021-05-22 01:23:12,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-22 01:23:12,296 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 12 [2021-05-22 01:23:12,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-22 01:23:12,301 INFO L225 Difference]: With dead ends: 57 [2021-05-22 01:23:12,301 INFO L226 Difference]: Without dead ends: 57 [2021-05-22 01:23:12,302 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-05-22 01:23:12,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-05-22 01:23:12,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2021-05-22 01:23:12,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.3392857142857142) internal successors, (75), 56 states have internal predecessors, (75), 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) [2021-05-22 01:23:12,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 75 transitions. [2021-05-22 01:23:12,335 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 75 transitions. Word has length 12 [2021-05-22 01:23:12,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-22 01:23:12,335 INFO L482 AbstractCegarLoop]: Abstraction has 57 states and 75 transitions. [2021-05-22 01:23:12,335 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2021-05-22 01:23:12,335 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 75 transitions. [2021-05-22 01:23:12,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-05-22 01:23:12,336 INFO L513 BasicCegarLoop]: Found error trace [2021-05-22 01:23:12,336 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-22 01:23:12,336 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-22 01:23:12,337 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-22 01:23:12,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-22 01:23:12,340 INFO L82 PathProgramCache]: Analyzing trace with hash 1331348325, now seen corresponding path program 1 times [2021-05-22 01:23:12,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-22 01:23:12,342 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811945134] [2021-05-22 01:23:12,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-22 01:23:12,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-22 01:23:12,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-22 01:23:12,427 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-22 01:23:12,427 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811945134] [2021-05-22 01:23:12,427 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811945134] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-22 01:23:12,427 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-22 01:23:12,428 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-22 01:23:12,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800914516] [2021-05-22 01:23:12,429 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-22 01:23:12,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-22 01:23:12,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-22 01:23:12,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-22 01:23:12,432 INFO L87 Difference]: Start difference. First operand 57 states and 75 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2021-05-22 01:23:12,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-22 01:23:12,499 INFO L93 Difference]: Finished difference Result 63 states and 81 transitions. [2021-05-22 01:23:12,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-22 01:23:12,501 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 14 [2021-05-22 01:23:12,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-22 01:23:12,503 INFO L225 Difference]: With dead ends: 63 [2021-05-22 01:23:12,503 INFO L226 Difference]: Without dead ends: 63 [2021-05-22 01:23:12,504 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 32.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-05-22 01:23:12,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-05-22 01:23:12,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 59. [2021-05-22 01:23:12,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 58 states have (on average 1.3275862068965518) internal successors, (77), 58 states have internal predecessors, (77), 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) [2021-05-22 01:23:12,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 77 transitions. [2021-05-22 01:23:12,518 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 77 transitions. Word has length 14 [2021-05-22 01:23:12,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-22 01:23:12,519 INFO L482 AbstractCegarLoop]: Abstraction has 59 states and 77 transitions. [2021-05-22 01:23:12,523 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2021-05-22 01:23:12,523 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 77 transitions. [2021-05-22 01:23:12,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-05-22 01:23:12,524 INFO L513 BasicCegarLoop]: Found error trace [2021-05-22 01:23:12,524 INFO L521 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1] [2021-05-22 01:23:12,525 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-22 01:23:12,525 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-22 01:23:12,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-22 01:23:12,526 INFO L82 PathProgramCache]: Analyzing trace with hash -1101690837, now seen corresponding path program 1 times [2021-05-22 01:23:12,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-22 01:23:12,526 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228830704] [2021-05-22 01:23:12,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-22 01:23:12,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-22 01:23:12,669 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-22 01:23:12,669 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-22 01:23:12,669 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228830704] [2021-05-22 01:23:12,670 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228830704] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-22 01:23:12,670 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1704438517] [2021-05-22 01:23:12,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-22 01:23:12,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-22 01:23:12,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 10 conjunts are in the unsatisfiable core [2021-05-22 01:23:12,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-22 01:23:12,807 WARN L348 FreeRefinementEngine]: Global settings require throwing the following exception [2021-05-22 01:23:13,008 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-05-22 01:23:13,009 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.EqualityInformation.getEqinfo(EqualityInformation.java:130) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.XnfDer.derSimple(XnfDer.java:308) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.XnfDer.tryToEliminate_EqInfoBased(XnfDer.java:138) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.XnfDer.tryToEliminate(XnfDer.java:101) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:255) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:100) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:246) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:201) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:297) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:190) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:180) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:374) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:69) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:63) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:371) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:307) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-05-22 01:23:13,011 INFO L168 Benchmark]: Toolchain (without parser) took 1535.21 ms. Allocated memory is still 394.3 MB. Free memory was 355.6 MB in the beginning and 292.4 MB in the end (delta: 63.2 MB). Peak memory consumption was 65.5 MB. Max. memory is 16.0 GB. [2021-05-22 01:23:13,012 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 394.3 MB. Free memory was 374.6 MB in the beginning and 374.6 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-22 01:23:13,012 INFO L168 Benchmark]: CACSL2BoogieTranslator took 205.00 ms. Allocated memory is still 394.3 MB. Free memory was 355.5 MB in the beginning and 377.2 MB in the end (delta: -21.7 MB). Peak memory consumption was 6.8 MB. Max. memory is 16.0 GB. [2021-05-22 01:23:13,012 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.91 ms. Allocated memory is still 394.3 MB. Free memory was 377.2 MB in the beginning and 375.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-22 01:23:13,013 INFO L168 Benchmark]: Boogie Preprocessor took 24.29 ms. Allocated memory is still 394.3 MB. Free memory was 375.1 MB in the beginning and 374.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-22 01:23:13,013 INFO L168 Benchmark]: RCFGBuilder took 272.10 ms. Allocated memory is still 394.3 MB. Free memory was 374.1 MB in the beginning and 356.2 MB in the end (delta: 17.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. [2021-05-22 01:23:13,013 INFO L168 Benchmark]: TraceAbstraction took 1008.24 ms. Allocated memory is still 394.3 MB. Free memory was 356.2 MB in the beginning and 292.4 MB in the end (delta: 63.8 MB). Peak memory consumption was 65.0 MB. Max. memory is 16.0 GB. [2021-05-22 01:23:13,015 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 394.3 MB. Free memory was 374.6 MB in the beginning and 374.6 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 205.00 ms. Allocated memory is still 394.3 MB. Free memory was 355.5 MB in the beginning and 377.2 MB in the end (delta: -21.7 MB). Peak memory consumption was 6.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 20.91 ms. Allocated memory is still 394.3 MB. Free memory was 377.2 MB in the beginning and 375.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 24.29 ms. Allocated memory is still 394.3 MB. Free memory was 375.1 MB in the beginning and 374.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 272.10 ms. Allocated memory is still 394.3 MB. Free memory was 374.1 MB in the beginning and 356.2 MB in the end (delta: 17.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1008.24 ms. Allocated memory is still 394.3 MB. Free memory was 356.2 MB in the beginning and 292.4 MB in the end (delta: 63.8 MB). Peak memory consumption was 65.0 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.EqualityInformation.getEqinfo(EqualityInformation.java:130) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...