/usr/bin/java -Xmx8000000000 -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-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-ext/18_read_write_lock.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2cf4d3f9dd5fed411db405f577e28237a543b59a-2cf4d3f [2021-08-12 20:32:56,775 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-12 20:32:56,776 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-12 20:32:56,796 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-12 20:32:56,798 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-12 20:32:56,804 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-12 20:32:56,807 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-12 20:32:56,812 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-12 20:32:56,814 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-12 20:32:56,818 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-12 20:32:56,819 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-12 20:32:56,820 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-12 20:32:56,820 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-12 20:32:56,821 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-12 20:32:56,824 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-12 20:32:56,825 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-12 20:32:56,826 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-12 20:32:56,826 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-12 20:32:56,830 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-12 20:32:56,832 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-12 20:32:56,833 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-12 20:32:56,834 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-12 20:32:56,834 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-12 20:32:56,835 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-12 20:32:56,836 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-12 20:32:56,836 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-12 20:32:56,836 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-12 20:32:56,837 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-12 20:32:56,837 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-12 20:32:56,838 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-12 20:32:56,838 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-12 20:32:56,838 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-12 20:32:56,839 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-12 20:32:56,839 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-12 20:32:56,840 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-12 20:32:56,840 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-12 20:32:56,847 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-12 20:32:56,848 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-12 20:32:56,848 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-12 20:32:56,848 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-12 20:32:56,849 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-12 20:32:56,849 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-PN-NoLbe.epf [2021-08-12 20:32:56,863 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-12 20:32:56,864 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-12 20:32:56,865 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-12 20:32:56,865 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-12 20:32:56,865 INFO L138 SettingsManager]: * Use SBE=true [2021-08-12 20:32:56,865 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-12 20:32:56,865 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-12 20:32:56,865 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-12 20:32:56,865 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-12 20:32:56,865 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-12 20:32:56,865 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-12 20:32:56,865 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-12 20:32:56,866 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-12 20:32:56,866 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-12 20:32:56,866 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-12 20:32:56,866 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-12 20:32:56,866 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-12 20:32:56,866 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-12 20:32:56,866 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-12 20:32:56,866 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-12 20:32:56,866 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-12 20:32:56,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-12 20:32:56,867 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-12 20:32:56,867 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-12 20:32:56,867 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-12 20:32:56,867 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-12 20:32:56,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-12 20:32:56,867 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-12 20:32:56,867 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-08-12 20:32:56,867 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-12 20:32:56,867 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-12 20:32:57,081 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-12 20:32:57,096 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-12 20:32:57,097 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-12 20:32:57,098 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-12 20:32:57,098 INFO L275 PluginConnector]: CDTParser initialized [2021-08-12 20:32:57,099 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/18_read_write_lock.i [2021-08-12 20:32:57,156 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35f5563d2/bbc9cd8b443b4402839f421c1fffb35f/FLAGd03a4a19b [2021-08-12 20:32:57,574 INFO L306 CDTParser]: Found 1 translation units. [2021-08-12 20:32:57,575 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/18_read_write_lock.i [2021-08-12 20:32:57,585 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35f5563d2/bbc9cd8b443b4402839f421c1fffb35f/FLAGd03a4a19b [2021-08-12 20:32:57,598 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35f5563d2/bbc9cd8b443b4402839f421c1fffb35f [2021-08-12 20:32:57,601 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-12 20:32:57,603 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-12 20:32:57,604 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-12 20:32:57,604 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-12 20:32:57,607 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-12 20:32:57,607 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.08 08:32:57" (1/1) ... [2021-08-12 20:32:57,608 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a900b7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 08:32:57, skipping insertion in model container [2021-08-12 20:32:57,609 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.08 08:32:57" (1/1) ... [2021-08-12 20:32:57,613 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-12 20:32:57,650 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-12 20:32:57,807 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-08-12 20:32:57,910 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/18_read_write_lock.i[31161,31174] [2021-08-12 20:32:57,914 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-12 20:32:57,918 INFO L203 MainTranslator]: Completed pre-run [2021-08-12 20:32:57,926 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-08-12 20:32:57,937 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/18_read_write_lock.i[31161,31174] [2021-08-12 20:32:57,939 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-12 20:32:57,991 INFO L208 MainTranslator]: Completed translation [2021-08-12 20:32:57,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 08:32:57 WrapperNode [2021-08-12 20:32:57,991 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-12 20:32:57,992 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-12 20:32:57,992 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-12 20:32:57,992 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-12 20:32:57,996 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 08:32:57" (1/1) ... [2021-08-12 20:32:58,020 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 08:32:57" (1/1) ... [2021-08-12 20:32:58,032 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-12 20:32:58,034 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-12 20:32:58,034 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-12 20:32:58,034 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-12 20:32:58,040 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 08:32:57" (1/1) ... [2021-08-12 20:32:58,040 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 08:32:57" (1/1) ... [2021-08-12 20:32:58,045 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 08:32:57" (1/1) ... [2021-08-12 20:32:58,046 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 08:32:57" (1/1) ... [2021-08-12 20:32:58,061 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 08:32:57" (1/1) ... [2021-08-12 20:32:58,063 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 08:32:57" (1/1) ... [2021-08-12 20:32:58,063 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 08:32:57" (1/1) ... [2021-08-12 20:32:58,065 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-12 20:32:58,065 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-12 20:32:58,065 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-12 20:32:58,066 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-12 20:32:58,066 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 08:32:57" (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 [2021-08-12 20:32:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-08-12 20:32:58,126 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-08-12 20:32:58,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-12 20:32:58,127 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-12 20:32:58,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-12 20:32:58,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-12 20:32:58,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-12 20:32:58,129 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-12 20:32:58,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-12 20:32:58,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-12 20:32:58,130 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-12 20:32:58,513 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-12 20:32:58,513 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-08-12 20:32:58,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.08 08:32:58 BoogieIcfgContainer [2021-08-12 20:32:58,515 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-12 20:32:58,516 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-12 20:32:58,516 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-12 20:32:58,518 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-12 20:32:58,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.08 08:32:57" (1/3) ... [2021-08-12 20:32:58,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@281c5e90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.08 08:32:58, skipping insertion in model container [2021-08-12 20:32:58,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 08:32:57" (2/3) ... [2021-08-12 20:32:58,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@281c5e90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.08 08:32:58, skipping insertion in model container [2021-08-12 20:32:58,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.08 08:32:58" (3/3) ... [2021-08-12 20:32:58,521 INFO L111 eAbstractionObserver]: Analyzing ICFG 18_read_write_lock.i [2021-08-12 20:32:58,524 INFO L206 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-12 20:32:58,524 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-12 20:32:58,525 INFO L445 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-12 20:32:58,548 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 20:32:58,548 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 20:32:58,549 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 20:32:58,549 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 20:32:58,549 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 20:32:58,549 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 20:32:58,549 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 20:32:58,549 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 20:32:58,550 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 20:32:58,550 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 20:32:58,550 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 20:32:58,550 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 20:32:58,550 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 20:32:58,550 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 20:32:58,550 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 20:32:58,550 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 20:32:58,551 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 20:32:58,552 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 20:32:58,552 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 20:32:58,552 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 20:32:58,552 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 20:32:58,552 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 20:32:58,553 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-12 20:32:58,567 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-08-12 20:32:58,580 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-12 20:32:58,580 INFO L379 AbstractCegarLoop]: Hoare is false [2021-08-12 20:32:58,580 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-12 20:32:58,580 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-12 20:32:58,580 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-12 20:32:58,580 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-12 20:32:58,580 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-12 20:32:58,580 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-12 20:32:58,586 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 51 transitions, 107 flow [2021-08-12 20:32:58,602 INFO L129 PetriNetUnfolder]: 1/50 cut-off events. [2021-08-12 20:32:58,602 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-12 20:32:58,603 INFO L84 FinitePrefix]: Finished finitePrefix Result has 54 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 19 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2021-08-12 20:32:58,603 INFO L82 GeneralOperation]: Start removeDead. Operand has 54 places, 51 transitions, 107 flow [2021-08-12 20:32:58,605 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 41 places, 37 transitions, 77 flow [2021-08-12 20:32:58,611 INFO L129 PetriNetUnfolder]: 0/36 cut-off events. [2021-08-12 20:32:58,611 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-12 20:32:58,612 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 20:32:58,612 INFO L266 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] [2021-08-12 20:32:58,612 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 20:32:58,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 20:32:58,615 INFO L82 PathProgramCache]: Analyzing trace with hash 180770886, now seen corresponding path program 1 times [2021-08-12 20:32:58,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 20:32:58,621 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595892966] [2021-08-12 20:32:58,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 20:32:58,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 20:32:58,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 20:32:58,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 20:32:58,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 20:32:58,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-12 20:32:58,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 20:32:58,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-12 20:32:58,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 20:32:58,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-12 20:32:58,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 20:32:58,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-12 20:32:58,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 20:32:58,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 20:32:58,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 20:32:58,763 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 20:32:58,763 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595892966] [2021-08-12 20:32:58,763 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595892966] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 20:32:58,763 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 20:32:58,763 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-12 20:32:58,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090543845] [2021-08-12 20:32:58,769 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-12 20:32:58,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 20:32:58,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-12 20:32:58,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-12 20:32:58,778 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 51 [2021-08-12 20:32:58,780 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 37 transitions, 77 flow. Second operand has 6 states, 6 states have (on average 40.333333333333336) internal successors, (242), 6 states have internal predecessors, (242), 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) [2021-08-12 20:32:58,780 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 20:32:58,781 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 51 [2021-08-12 20:32:58,781 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 20:32:58,836 INFO L129 PetriNetUnfolder]: 3/62 cut-off events. [2021-08-12 20:32:58,837 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-12 20:32:58,837 INFO L84 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 62 events. 3/62 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 105 event pairs, 1 based on Foata normal form. 3/64 useless extension candidates. Maximal degree in co-relation 64. Up to 14 conditions per place. [2021-08-12 20:32:58,838 INFO L132 encePairwiseOnDemand]: 45/51 looper letters, 7 selfloop transitions, 6 changer transitions 3/44 dead transitions. [2021-08-12 20:32:58,838 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 44 transitions, 123 flow [2021-08-12 20:32:58,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-12 20:32:58,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-08-12 20:32:58,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 291 transitions. [2021-08-12 20:32:58,846 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8151260504201681 [2021-08-12 20:32:58,846 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 291 transitions. [2021-08-12 20:32:58,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 291 transitions. [2021-08-12 20:32:58,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 20:32:58,849 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 291 transitions. [2021-08-12 20:32:58,851 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 41.57142857142857) internal successors, (291), 7 states have internal predecessors, (291), 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) [2021-08-12 20:32:58,855 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 51.0) internal successors, (408), 8 states have internal predecessors, (408), 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) [2021-08-12 20:32:58,855 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 51.0) internal successors, (408), 8 states have internal predecessors, (408), 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) [2021-08-12 20:32:58,856 INFO L348 CegarLoopForPetriNet]: 41 programPoint places, 6 predicate places. [2021-08-12 20:32:58,856 INFO L482 AbstractCegarLoop]: Abstraction has has 47 places, 44 transitions, 123 flow [2021-08-12 20:32:58,856 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 40.333333333333336) internal successors, (242), 6 states have internal predecessors, (242), 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) [2021-08-12 20:32:58,856 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 20:32:58,856 INFO L266 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] [2021-08-12 20:32:58,856 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-12 20:32:58,856 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 20:32:58,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 20:32:58,857 INFO L82 PathProgramCache]: Analyzing trace with hash -992919419, now seen corresponding path program 1 times [2021-08-12 20:32:58,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 20:32:58,857 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028533057] [2021-08-12 20:32:58,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 20:32:58,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 20:32:58,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 20:32:58,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 20:32:58,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 20:32:58,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-12 20:32:58,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 20:32:58,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-12 20:32:58,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 20:32:58,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 20:32:58,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 20:32:58,906 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 20:32:58,906 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028533057] [2021-08-12 20:32:58,906 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028533057] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 20:32:58,906 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 20:32:58,906 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-12 20:32:58,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053743338] [2021-08-12 20:32:58,907 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-08-12 20:32:58,907 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 20:32:58,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-12 20:32:58,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-12 20:32:58,908 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 51 [2021-08-12 20:32:58,909 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 44 transitions, 123 flow. Second operand has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 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) [2021-08-12 20:32:58,909 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 20:32:58,909 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 51 [2021-08-12 20:32:58,909 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 20:32:58,921 INFO L129 PetriNetUnfolder]: 3/70 cut-off events. [2021-08-12 20:32:58,921 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-12 20:32:58,922 INFO L84 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 70 events. 3/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 127 event pairs, 1 based on Foata normal form. 1/68 useless extension candidates. Maximal degree in co-relation 79. Up to 14 conditions per place. [2021-08-12 20:32:58,922 INFO L132 encePairwiseOnDemand]: 48/51 looper letters, 1 selfloop transitions, 2 changer transitions 3/44 dead transitions. [2021-08-12 20:32:58,922 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 44 transitions, 129 flow [2021-08-12 20:32:58,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-12 20:32:58,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-08-12 20:32:58,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 180 transitions. [2021-08-12 20:32:58,923 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8823529411764706 [2021-08-12 20:32:58,923 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 180 transitions. [2021-08-12 20:32:58,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 180 transitions. [2021-08-12 20:32:58,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 20:32:58,924 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 180 transitions. [2021-08-12 20:32:58,924 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 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) [2021-08-12 20:32:58,925 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 51.0) internal successors, (255), 5 states have internal predecessors, (255), 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) [2021-08-12 20:32:58,925 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 51.0) internal successors, (255), 5 states have internal predecessors, (255), 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) [2021-08-12 20:32:58,925 INFO L348 CegarLoopForPetriNet]: 41 programPoint places, 9 predicate places. [2021-08-12 20:32:58,925 INFO L482 AbstractCegarLoop]: Abstraction has has 50 places, 44 transitions, 129 flow [2021-08-12 20:32:58,926 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 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) [2021-08-12 20:32:58,926 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 20:32:58,926 INFO L266 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] [2021-08-12 20:32:58,926 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-12 20:32:58,926 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 20:32:58,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 20:32:58,926 INFO L82 PathProgramCache]: Analyzing trace with hash -1393312809, now seen corresponding path program 2 times [2021-08-12 20:32:58,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 20:32:58,927 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521824977] [2021-08-12 20:32:58,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 20:32:58,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 20:32:58,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 20:32:58,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 20:32:58,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 20:32:58,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-12 20:32:58,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 20:32:58,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 20:32:58,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 20:32:58,958 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 20:32:58,958 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521824977] [2021-08-12 20:32:58,958 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521824977] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 20:32:58,958 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 20:32:58,959 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-12 20:32:58,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358395258] [2021-08-12 20:32:58,959 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-12 20:32:58,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 20:32:58,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-12 20:32:58,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-12 20:32:58,960 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 51 [2021-08-12 20:32:58,960 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 44 transitions, 129 flow. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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) [2021-08-12 20:32:58,960 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 20:32:58,960 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 51 [2021-08-12 20:32:58,960 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 20:32:58,968 INFO L129 PetriNetUnfolder]: 1/45 cut-off events. [2021-08-12 20:32:58,968 INFO L130 PetriNetUnfolder]: For 4/6 co-relation queries the response was YES. [2021-08-12 20:32:58,968 INFO L84 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 45 events. 1/45 cut-off events. For 4/6 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 34 event pairs, 1 based on Foata normal form. 1/45 useless extension candidates. Maximal degree in co-relation 47. Up to 7 conditions per place. [2021-08-12 20:32:58,968 INFO L132 encePairwiseOnDemand]: 48/51 looper letters, 0 selfloop transitions, 0 changer transitions 35/35 dead transitions. [2021-08-12 20:32:58,968 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 35 transitions, 103 flow [2021-08-12 20:32:58,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-12 20:32:58,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-12 20:32:58,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 140 transitions. [2021-08-12 20:32:58,969 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9150326797385621 [2021-08-12 20:32:58,969 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 140 transitions. [2021-08-12 20:32:58,969 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 140 transitions. [2021-08-12 20:32:58,969 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 20:32:58,969 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 140 transitions. [2021-08-12 20:32:58,970 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 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) [2021-08-12 20:32:58,970 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 51.0) internal successors, (204), 4 states have internal predecessors, (204), 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) [2021-08-12 20:32:58,971 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 51.0) internal successors, (204), 4 states have internal predecessors, (204), 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) [2021-08-12 20:32:58,971 INFO L348 CegarLoopForPetriNet]: 41 programPoint places, 8 predicate places. [2021-08-12 20:32:58,971 INFO L482 AbstractCegarLoop]: Abstraction has has 49 places, 35 transitions, 103 flow [2021-08-12 20:32:58,971 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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) [2021-08-12 20:32:58,971 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-12 20:32:59,036 INFO L742 CegarLoopForPetriNet]: Computed Owicki-Gries annotation of size 14234 in 61780266ns [2021-08-12 20:32:59,037 INFO L113 kiGriesValidityCheck]: 36#(and (not v_np25_1) (not v_np22_1) (not v_np23_1) (not v_np31_1) (not v_np37_1) (not v_np20_1) (not v_np32_1) (not v_np5_1) (not v_np7_1) (not v_np3_1) (not v_np27_1) (not v_np9_1) (not v_np8_1) (not v_np38_1) v_np35_1 (not v_np36_1) (not v_np1_1) (not v_np11_1) (not v_np14_1) (not v_np6_1) (not v_np34_1) (not v_np24_1) (not v_np4_1) (not v_np12_1) (not v_np13_1) (not v_np10_1) (not v_np16_1) (not v_np15_1) (not v_np2_1) v_np39_1 (not v_np17_1) (not v_np21_1) (not v_np40_1) (not v_np18_1) (not v_np19_1) (not v_np29_1) (not v_np26_1) (not v_np33_1) (not v_np28_1) (not v_np0_1) (not v_np30_1)) [2021-08-12 20:32:59,040 INFO L113 kiGriesValidityCheck]: 33#(or (and (not v_np25_1) (not v_np22_1) (not v_np23_1) (not v_np31_1) (not v_np37_1) (not v_np20_1) (not v_np39_1) (= ~y~0 ~x~0) (not v_np5_1) (not v_np7_1) (not v_np3_1) (not v_np27_1) (not v_np9_1) (not v_np8_1) (not v_np38_1) v_np32_1 (not v_np36_1) (not v_np1_1) (not v_np11_1) (not v_np14_1) (not v_np34_1) (not v_np24_1) (not v_np4_1) (not v_np12_1) (not v_np13_1) (not v_np10_1) (not v_np16_1) (not v_np15_1) (not v_np2_1) (not v_np17_1) (not v_np21_1) (<= 1 ~r~0) (= ~x~0 ULTIMATE.start_thr2_~l~0) (not v_np18_1) (not v_np19_1) (not v_np29_1) (not v_np26_1) (not v_np33_1) (not v_np28_1) v_np6_1 (not v_np0_1) (not v_np30_1) v_np40_1 (not v_np35_1)) (and (not v_np25_1) (not v_np22_1) (not v_np23_1) (not v_np31_1) (not v_np37_1) (not v_np20_1) (not v_np39_1) (not v_np5_1) (not v_np7_1) (not v_np3_1) (not v_np27_1) (not v_np9_1) (not v_np8_1) (not v_np38_1) v_np32_1 (not v_np36_1) (not v_np1_1) (not v_np11_1) (not v_np6_1) (not v_np34_1) (not v_np24_1) (not v_np4_1) (not v_np12_1) (not v_np13_1) (not v_np10_1) (not v_np16_1) (not v_np15_1) (not v_np2_1) v_np14_1 (not v_np17_1) (not v_np21_1) (<= 1 ~r~0) (not v_np18_1) (not v_np19_1) (not v_np29_1) (not v_np26_1) (not v_np33_1) (not v_np28_1) (not v_np0_1) (not v_np30_1) v_np40_1 (not v_np35_1)) (and (not v_np25_1) (not v_np22_1) (not v_np23_1) (not v_np31_1) (not v_np37_1) (not v_np20_1) (not v_np39_1) (= ULTIMATE.start_thr2_~ly~0 ~x~0) (= ~y~0 ~x~0) (not v_np5_1) (= ULTIMATE.start_thr2_~ly~0 ULTIMATE.start_thr2_~lx~0) (not v_np7_1) (not v_np3_1) (not v_np27_1) (not v_np9_1) (not v_np8_1) (not v_np38_1) v_np32_1 (not v_np36_1) (not v_np1_1) (not v_np11_1) (not v_np14_1) (not v_np6_1) (not v_np34_1) (not v_np24_1) v_np30_1 (not v_np4_1) (not v_np12_1) (not v_np13_1) (not v_np10_1) (not v_np16_1) (not v_np15_1) (not v_np2_1) (not v_np17_1) (not v_np21_1) (<= 1 ~r~0) (= ~x~0 ULTIMATE.start_thr2_~l~0) (not v_np18_1) (not v_np19_1) (not v_np29_1) (not v_np26_1) (not v_np33_1) (not v_np28_1) (not v_np0_1) v_np40_1 (not v_np35_1)) (and (not v_np25_1) (not v_np22_1) (not v_np23_1) (not v_np31_1) (not v_np37_1) (not v_np20_1) (not v_np39_1) (not v_np5_1) (not v_np7_1) (not v_np3_1) (not v_np27_1) (not v_np9_1) (not v_np8_1) (not v_np38_1) v_np32_1 (not v_np36_1) (not v_np1_1) (not v_np11_1) (not v_np14_1) v_np12_1 (= ~r~0 0) (not v_np6_1) (not v_np34_1) (not v_np24_1) (not v_np4_1) (not v_np13_1) (not v_np10_1) (not v_np16_1) (not v_np15_1) (not v_np2_1) (not v_np17_1) (not v_np21_1) (not v_np18_1) (not v_np19_1) (not v_np29_1) (not v_np26_1) (not v_np33_1) (not v_np28_1) (not v_np0_1) (not v_np30_1) v_np40_1 (not v_np35_1)) (and (not v_np25_1) (not v_np22_1) (not v_np23_1) (not v_np31_1) (not v_np37_1) (not v_np20_1) (not v_np39_1) (not v_np7_1) (not v_np3_1) (not v_np27_1) (not v_np9_1) (not v_np8_1) (not v_np38_1) v_np32_1 (not v_np36_1) (not v_np1_1) (not v_np11_1) (not v_np14_1) (= ~r~0 0) (not v_np6_1) (not v_np34_1) (not v_np24_1) (not v_np4_1) (not v_np12_1) (not v_np13_1) (not v_np10_1) (not v_np16_1) (not v_np15_1) (not v_np2_1) (not v_np17_1) (not v_np21_1) (not v_np18_1) (not v_np19_1) (not v_np29_1) (not v_np26_1) (not v_np33_1) v_np5_1 (not v_np28_1) (not v_np0_1) (not v_np30_1) v_np40_1 (not v_np35_1)) (and (not v_np25_1) (not v_np22_1) (not v_np23_1) (not v_np31_1) (not v_np37_1) (not v_np20_1) (not v_np39_1) (= ULTIMATE.start_thr2_~ly~0 ~x~0) (= ~y~0 ~x~0) (not v_np5_1) (not v_np7_1) (not v_np3_1) (not v_np27_1) (not v_np9_1) (not v_np8_1) v_np32_1 (not v_np36_1) (not v_np1_1) (not v_np11_1) (not v_np14_1) (not v_np6_1) (not v_np34_1) (not v_np24_1) (not v_np4_1) (not v_np12_1) (not v_np13_1) (not v_np10_1) (not v_np16_1) (not v_np15_1) (not v_np2_1) (not v_np17_1) v_np38_1 (not v_np21_1) (<= 1 ~r~0) (= ~x~0 ULTIMATE.start_thr2_~l~0) (not v_np18_1) (not v_np19_1) (not v_np29_1) (not v_np26_1) (not v_np33_1) (not v_np28_1) (not v_np0_1) (not v_np30_1) v_np40_1 (not v_np35_1)) (and (not v_np25_1) (not v_np22_1) (not v_np23_1) (not v_np31_1) (not v_np37_1) (not v_np20_1) (not v_np39_1) v_np9_1 (not v_np5_1) (not v_np7_1) (not v_np3_1) (not v_np27_1) (not v_np8_1) (not v_np38_1) v_np32_1 (not v_np36_1) (not v_np1_1) (not v_np11_1) (not v_np14_1) (not v_np6_1) (not v_np34_1) (not v_np24_1) (not v_np4_1) (not v_np12_1) (not v_np13_1) (not v_np10_1) (not v_np16_1) (not v_np15_1) (not v_np2_1) (not v_np17_1) (<= 1 ~r~0) (not v_np21_1) (= ~x~0 ULTIMATE.start_thr2_~l~0) (not v_np18_1) (not v_np19_1) (not v_np29_1) (not v_np26_1) (not v_np33_1) (not v_np28_1) (not v_np0_1) (not v_np30_1) v_np40_1 (not v_np35_1))) [2021-08-12 20:32:59,053 INFO L748 CegarLoopForPetriNet]: Checked inductivity and non-interference of Owicki-Gries annotation in 19868644ns [2021-08-12 20:32:59,053 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Invalid Owicki-Gries annotation at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.CegarLoopForPetriNet.computeOwickiGries(CegarLoopForPetriNet.java:752) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:111) 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:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:285) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:230) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:161) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:146) 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) [2021-08-12 20:32:59,056 INFO L168 Benchmark]: Toolchain (without parser) took 1452.90 ms. Allocated memory is still 212.9 MB. Free memory was 175.6 MB in the beginning and 177.6 MB in the end (delta: -2.0 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-08-12 20:32:59,056 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 212.9 MB. Free memory is still 194.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-12 20:32:59,057 INFO L168 Benchmark]: CACSL2BoogieTranslator took 387.16 ms. Allocated memory is still 212.9 MB. Free memory was 175.4 MB in the beginning and 175.2 MB in the end (delta: 207.5 kB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-08-12 20:32:59,057 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.94 ms. Allocated memory is still 212.9 MB. Free memory was 175.2 MB in the beginning and 173.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-12 20:32:59,057 INFO L168 Benchmark]: Boogie Preprocessor took 31.27 ms. Allocated memory is still 212.9 MB. Free memory was 173.4 MB in the beginning and 172.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-12 20:32:59,058 INFO L168 Benchmark]: RCFGBuilder took 449.40 ms. Allocated memory is still 212.9 MB. Free memory was 172.1 MB in the beginning and 142.1 MB in the end (delta: 30.0 MB). Peak memory consumption was 29.4 MB. Max. memory is 8.0 GB. [2021-08-12 20:32:59,058 INFO L168 Benchmark]: TraceAbstraction took 538.99 ms. Allocated memory is still 212.9 MB. Free memory was 141.7 MB in the beginning and 177.6 MB in the end (delta: -36.0 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-08-12 20:32:59,061 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 212.9 MB. Free memory is still 194.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 387.16 ms. Allocated memory is still 212.9 MB. Free memory was 175.4 MB in the beginning and 175.2 MB in the end (delta: 207.5 kB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 39.94 ms. Allocated memory is still 212.9 MB. Free memory was 175.2 MB in the beginning and 173.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 31.27 ms. Allocated memory is still 212.9 MB. Free memory was 173.4 MB in the beginning and 172.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 449.40 ms. Allocated memory is still 212.9 MB. Free memory was 172.1 MB in the beginning and 142.1 MB in the end (delta: 30.0 MB). Peak memory consumption was 29.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 538.99 ms. Allocated memory is still 212.9 MB. Free memory was 141.7 MB in the beginning and 177.6 MB in the end (delta: -36.0 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Invalid Owicki-Gries annotation de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Invalid Owicki-Gries annotation: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.CegarLoopForPetriNet.computeOwickiGries(CegarLoopForPetriNet.java:752) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...