/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.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-10 15:07:01,893 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-10 15:07:01,896 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-10 15:07:01,933 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-10 15:07:01,933 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-10 15:07:01,936 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-10 15:07:01,938 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-10 15:07:01,943 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-10 15:07:01,945 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-10 15:07:01,949 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-10 15:07:01,950 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-10 15:07:01,951 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-10 15:07:01,952 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-10 15:07:01,953 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-10 15:07:01,954 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-10 15:07:01,958 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-10 15:07:01,960 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-10 15:07:01,961 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-10 15:07:01,963 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-10 15:07:01,968 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-10 15:07:01,969 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-10 15:07:01,970 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-10 15:07:01,971 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-10 15:07:01,973 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-10 15:07:01,978 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-10 15:07:01,986 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-10 15:07:01,987 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-10 15:07:01,988 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-10 15:07:01,991 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-03-10 15:07:02,025 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-10 15:07:02,025 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-10 15:07:02,026 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-03-10 15:07:02,026 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-03-10 15:07:02,028 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-10 15:07:02,028 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-10 15:07:02,028 INFO L138 SettingsManager]: * Use SBE=true [2021-03-10 15:07:02,029 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-10 15:07:02,029 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-10 15:07:02,029 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-10 15:07:02,030 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-10 15:07:02,030 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-10 15:07:02,030 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-10 15:07:02,030 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-10 15:07:02,030 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-10 15:07:02,031 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-10 15:07:02,031 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-10 15:07:02,031 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-10 15:07:02,031 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-10 15:07:02,031 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-10 15:07:02,031 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-10 15:07:02,032 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-10 15:07:02,032 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-10 15:07:02,032 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-10 15:07:02,032 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-10 15:07:02,032 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-10 15:07:02,032 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-10 15:07:02,033 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-10 15:07:02,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-10 15:07:02,033 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-10 15:07:02,033 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-10 15:07:02,033 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-10 15:07:02,322 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-10 15:07:02,342 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-10 15:07:02,344 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-10 15:07:02,345 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-10 15:07:02,346 INFO L275 PluginConnector]: CDTParser initialized [2021-03-10 15:07:02,346 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-2.i [2021-03-10 15:07:02,397 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17e99ea00/fb08fe0e5c814b6d93beb388081b80da/FLAGd7715b869 [2021-03-10 15:07:02,822 INFO L306 CDTParser]: Found 1 translation units. [2021-03-10 15:07:02,823 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-2.i [2021-03-10 15:07:02,838 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17e99ea00/fb08fe0e5c814b6d93beb388081b80da/FLAGd7715b869 [2021-03-10 15:07:03,195 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17e99ea00/fb08fe0e5c814b6d93beb388081b80da [2021-03-10 15:07:03,198 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-10 15:07:03,204 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-10 15:07:03,206 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-10 15:07:03,207 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-10 15:07:03,209 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-10 15:07:03,210 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.03 03:07:03" (1/1) ... [2021-03-10 15:07:03,211 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74ca4601 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 03:07:03, skipping insertion in model container [2021-03-10 15:07:03,212 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.03 03:07:03" (1/1) ... [2021-03-10 15:07:03,219 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-10 15:07:03,270 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-10 15:07:03,375 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-10 15:07:03,473 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-2.i[31244,31257] [2021-03-10 15:07:03,491 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-10 15:07:03,498 INFO L203 MainTranslator]: Completed pre-run [2021-03-10 15:07:03,531 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-10 15:07:03,555 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-2.i[31244,31257] [2021-03-10 15:07:03,558 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-10 15:07:03,635 INFO L208 MainTranslator]: Completed translation [2021-03-10 15:07:03,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 03:07:03 WrapperNode [2021-03-10 15:07:03,636 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-10 15:07:03,637 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-10 15:07:03,637 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-10 15:07:03,637 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-10 15:07:03,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 03:07:03" (1/1) ... [2021-03-10 15:07:03,672 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 03:07:03" (1/1) ... [2021-03-10 15:07:03,696 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-10 15:07:03,697 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-10 15:07:03,697 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-10 15:07:03,697 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-10 15:07:03,703 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 03:07:03" (1/1) ... [2021-03-10 15:07:03,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 03:07:03" (1/1) ... [2021-03-10 15:07:03,707 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 03:07:03" (1/1) ... [2021-03-10 15:07:03,708 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 03:07:03" (1/1) ... [2021-03-10 15:07:03,723 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 03:07:03" (1/1) ... [2021-03-10 15:07:03,724 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 03:07:03" (1/1) ... [2021-03-10 15:07:03,726 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 03:07:03" (1/1) ... [2021-03-10 15:07:03,727 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-10 15:07:03,728 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-10 15:07:03,728 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-10 15:07:03,728 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-10 15:07:03,729 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 03:07:03" (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 [2021-03-10 15:07:03,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-10 15:07:03,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-10 15:07:03,813 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-10 15:07:03,815 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2021-03-10 15:07:03,815 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2021-03-10 15:07:03,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-10 15:07:03,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-10 15:07:03,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-10 15:07:03,816 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-10 15:07:03,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-10 15:07:03,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-10 15:07:03,816 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2021-03-10 15:07:03,816 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2021-03-10 15:07:03,818 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-10 15:07:04,229 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-10 15:07:04,229 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-03-10 15:07:04,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 03:07:04 BoogieIcfgContainer [2021-03-10 15:07:04,231 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-10 15:07:04,232 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-10 15:07:04,232 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-10 15:07:04,235 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-10 15:07:04,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.03 03:07:03" (1/3) ... [2021-03-10 15:07:04,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@615a47b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.03 03:07:04, skipping insertion in model container [2021-03-10 15:07:04,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 03:07:03" (2/3) ... [2021-03-10 15:07:04,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@615a47b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.03 03:07:04, skipping insertion in model container [2021-03-10 15:07:04,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 03:07:04" (3/3) ... [2021-03-10 15:07:04,237 INFO L111 eAbstractionObserver]: Analyzing ICFG read_write_lock-2.i [2021-03-10 15:07:04,241 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-10 15:07:04,241 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-10 15:07:04,245 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-10 15:07:04,245 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-10 15:07:04,272 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,272 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,272 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,272 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,273 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,273 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,273 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,273 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,273 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,273 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,273 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,273 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,274 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,274 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,274 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,274 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,274 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,274 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,275 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,275 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,275 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,275 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,275 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,275 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,276 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,276 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,276 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,276 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,276 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,276 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,277 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,277 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,277 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,277 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,277 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,277 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,277 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,278 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,278 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,278 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,278 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,278 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,279 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,279 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,279 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,279 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,279 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,279 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,279 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,280 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,280 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,280 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,280 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,280 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,281 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,281 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,281 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,281 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,281 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,281 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,281 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,282 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,282 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,282 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,282 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,282 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,282 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,282 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,283 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,283 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,283 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,283 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,283 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,283 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,284 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,284 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,284 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,284 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,284 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,284 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,285 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,285 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,285 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,285 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,285 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,285 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,285 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,285 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,286 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,286 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,286 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,286 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,286 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,287 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,295 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,296 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,296 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,296 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,296 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,297 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,297 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,297 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,297 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,297 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,298 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,298 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,298 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,298 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,300 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,300 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,300 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,300 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,300 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,301 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,303 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,303 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,303 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,303 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,303 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,303 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,303 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,303 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,304 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,305 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,305 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,305 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,305 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,305 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,306 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,307 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,307 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,307 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,307 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,307 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,307 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,308 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,308 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,308 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:07:04,321 INFO L149 ThreadInstanceAdder]: Constructed 16 joinOtherThreadTransitions. [2021-03-10 15:07:04,332 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-03-10 15:07:04,347 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-10 15:07:04,347 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-10 15:07:04,348 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-10 15:07:04,348 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-10 15:07:04,348 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-10 15:07:04,348 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-10 15:07:04,348 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-10 15:07:04,348 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-10 15:07:04,357 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 109 places, 110 transitions, 288 flow [2021-03-10 15:07:08,632 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 51722 states, 51718 states have (on average 4.137012258788043) internal successors, (213958), 51721 states have internal predecessors, (213958), 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) [2021-03-10 15:07:08,897 INFO L276 IsEmpty]: Start isEmpty. Operand has 51722 states, 51718 states have (on average 4.137012258788043) internal successors, (213958), 51721 states have internal predecessors, (213958), 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) [2021-03-10 15:07:08,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-10 15:07:08,911 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 15:07:08,912 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 15:07:08,912 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-10 15:07:08,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 15:07:08,917 INFO L82 PathProgramCache]: Analyzing trace with hash -1663789000, now seen corresponding path program 1 times [2021-03-10 15:07:08,923 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 15:07:08,923 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018794606] [2021-03-10 15:07:08,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 15:07:09,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 15:07:09,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 15:07:09,137 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018794606] [2021-03-10 15:07:09,138 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 15:07:09,138 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-10 15:07:09,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906150783] [2021-03-10 15:07:09,142 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-10 15:07:09,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 15:07:09,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-10 15:07:09,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-10 15:07:09,228 INFO L87 Difference]: Start difference. First operand has 51722 states, 51718 states have (on average 4.137012258788043) internal successors, (213958), 51721 states have internal predecessors, (213958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 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) [2021-03-10 15:07:10,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 15:07:10,764 INFO L93 Difference]: Finished difference Result 112219 states and 445921 transitions. [2021-03-10 15:07:10,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-10 15:07:10,766 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 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 31 [2021-03-10 15:07:10,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 15:07:11,499 INFO L225 Difference]: With dead ends: 112219 [2021-03-10 15:07:11,499 INFO L226 Difference]: Without dead ends: 83569 [2021-03-10 15:07:11,501 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 108.8ms TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2021-03-10 15:07:11,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83569 states. [2021-03-10 15:07:13,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83569 to 52135. [2021-03-10 15:07:13,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52135 states, 52132 states have (on average 4.005083250211003) internal successors, (208793), 52134 states have internal predecessors, (208793), 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) [2021-03-10 15:07:14,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52135 states to 52135 states and 208793 transitions. [2021-03-10 15:07:14,208 INFO L78 Accepts]: Start accepts. Automaton has 52135 states and 208793 transitions. Word has length 31 [2021-03-10 15:07:14,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 15:07:14,209 INFO L480 AbstractCegarLoop]: Abstraction has 52135 states and 208793 transitions. [2021-03-10 15:07:14,209 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 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) [2021-03-10 15:07:14,209 INFO L276 IsEmpty]: Start isEmpty. Operand 52135 states and 208793 transitions. [2021-03-10 15:07:14,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-10 15:07:14,216 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 15:07:14,216 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 15:07:14,216 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-10 15:07:14,216 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-10 15:07:14,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 15:07:14,217 INFO L82 PathProgramCache]: Analyzing trace with hash -1022971134, now seen corresponding path program 1 times [2021-03-10 15:07:14,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 15:07:14,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312618143] [2021-03-10 15:07:14,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 15:07:14,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 15:07:14,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 15:07:14,341 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312618143] [2021-03-10 15:07:14,341 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 15:07:14,341 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-10 15:07:14,341 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853185254] [2021-03-10 15:07:14,351 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-10 15:07:14,352 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 15:07:14,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-10 15:07:14,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-10 15:07:14,353 INFO L87 Difference]: Start difference. First operand 52135 states and 208793 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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) [2021-03-10 15:07:14,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 15:07:14,700 INFO L93 Difference]: Finished difference Result 48838 states and 188630 transitions. [2021-03-10 15:07:14,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-10 15:07:14,700 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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 34 [2021-03-10 15:07:14,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 15:07:14,858 INFO L225 Difference]: With dead ends: 48838 [2021-03-10 15:07:14,858 INFO L226 Difference]: Without dead ends: 48406 [2021-03-10 15:07:14,859 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-10 15:07:15,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48406 states. [2021-03-10 15:07:16,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48406 to 48406. [2021-03-10 15:07:16,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48406 states, 48403 states have (on average 3.8631076586162014) internal successors, (186986), 48405 states have internal predecessors, (186986), 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) [2021-03-10 15:07:16,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48406 states to 48406 states and 186986 transitions. [2021-03-10 15:07:16,777 INFO L78 Accepts]: Start accepts. Automaton has 48406 states and 186986 transitions. Word has length 34 [2021-03-10 15:07:16,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 15:07:16,778 INFO L480 AbstractCegarLoop]: Abstraction has 48406 states and 186986 transitions. [2021-03-10 15:07:16,778 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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) [2021-03-10 15:07:16,778 INFO L276 IsEmpty]: Start isEmpty. Operand 48406 states and 186986 transitions. [2021-03-10 15:07:16,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-10 15:07:16,783 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 15:07:16,787 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 15:07:16,787 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-10 15:07:16,787 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-10 15:07:16,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 15:07:16,788 INFO L82 PathProgramCache]: Analyzing trace with hash 140837638, now seen corresponding path program 2 times [2021-03-10 15:07:16,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 15:07:16,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818796039] [2021-03-10 15:07:16,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 15:07:16,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 15:07:16,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 15:07:16,838 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818796039] [2021-03-10 15:07:16,838 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 15:07:16,838 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-10 15:07:16,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745635793] [2021-03-10 15:07:16,838 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-10 15:07:16,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 15:07:16,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-10 15:07:16,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-10 15:07:16,840 INFO L87 Difference]: Start difference. First operand 48406 states and 186986 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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) [2021-03-10 15:07:17,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 15:07:17,029 INFO L93 Difference]: Finished difference Result 42610 states and 152039 transitions. [2021-03-10 15:07:17,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-10 15:07:17,030 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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 34 [2021-03-10 15:07:17,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 15:07:17,140 INFO L225 Difference]: With dead ends: 42610 [2021-03-10 15:07:17,140 INFO L226 Difference]: Without dead ends: 40978 [2021-03-10 15:07:17,141 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.1ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-10 15:07:17,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40978 states. [2021-03-10 15:07:18,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40978 to 33601. [2021-03-10 15:07:18,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33601 states, 33593 states have (on average 3.6115857470306314) internal successors, (121324), 33600 states have internal predecessors, (121324), 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) [2021-03-10 15:07:18,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33601 states to 33601 states and 121324 transitions. [2021-03-10 15:07:18,136 INFO L78 Accepts]: Start accepts. Automaton has 33601 states and 121324 transitions. Word has length 34 [2021-03-10 15:07:18,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 15:07:18,136 INFO L480 AbstractCegarLoop]: Abstraction has 33601 states and 121324 transitions. [2021-03-10 15:07:18,136 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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) [2021-03-10 15:07:18,136 INFO L276 IsEmpty]: Start isEmpty. Operand 33601 states and 121324 transitions. [2021-03-10 15:07:18,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-03-10 15:07:18,141 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 15:07:18,141 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 15:07:18,142 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-10 15:07:18,142 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-10 15:07:18,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 15:07:18,142 INFO L82 PathProgramCache]: Analyzing trace with hash 1484928555, now seen corresponding path program 1 times [2021-03-10 15:07:18,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 15:07:18,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009908195] [2021-03-10 15:07:18,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 15:07:18,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 15:07:18,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 15:07:18,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009908195] [2021-03-10 15:07:18,196 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 15:07:18,196 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-10 15:07:18,196 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984766285] [2021-03-10 15:07:18,197 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-10 15:07:18,197 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 15:07:18,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-10 15:07:18,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-10 15:07:18,198 INFO L87 Difference]: Start difference. First operand 33601 states and 121324 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 15:07:18,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 15:07:18,555 INFO L93 Difference]: Finished difference Result 44881 states and 158680 transitions. [2021-03-10 15:07:18,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-10 15:07:18,557 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-03-10 15:07:18,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 15:07:18,642 INFO L225 Difference]: With dead ends: 44881 [2021-03-10 15:07:18,642 INFO L226 Difference]: Without dead ends: 35263 [2021-03-10 15:07:18,642 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 85.7ms TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2021-03-10 15:07:19,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35263 states. [2021-03-10 15:07:19,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35263 to 27691. [2021-03-10 15:07:19,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27691 states, 27689 states have (on average 3.5684929033190076) internal successors, (98808), 27690 states have internal predecessors, (98808), 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) [2021-03-10 15:07:19,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27691 states to 27691 states and 98808 transitions. [2021-03-10 15:07:19,591 INFO L78 Accepts]: Start accepts. Automaton has 27691 states and 98808 transitions. Word has length 37 [2021-03-10 15:07:19,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 15:07:19,592 INFO L480 AbstractCegarLoop]: Abstraction has 27691 states and 98808 transitions. [2021-03-10 15:07:19,592 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 15:07:19,593 INFO L276 IsEmpty]: Start isEmpty. Operand 27691 states and 98808 transitions. [2021-03-10 15:07:19,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-03-10 15:07:19,606 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 15:07:19,606 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 15:07:19,607 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-10 15:07:19,607 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-10 15:07:19,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 15:07:19,607 INFO L82 PathProgramCache]: Analyzing trace with hash -1718639830, now seen corresponding path program 1 times [2021-03-10 15:07:19,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 15:07:19,608 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119136780] [2021-03-10 15:07:19,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 15:07:19,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 15:07:19,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 15:07:19,669 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119136780] [2021-03-10 15:07:19,670 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 15:07:19,670 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-10 15:07:19,670 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972332412] [2021-03-10 15:07:19,671 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-10 15:07:19,671 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 15:07:19,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-10 15:07:19,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-10 15:07:19,675 INFO L87 Difference]: Start difference. First operand 27691 states and 98808 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 15:07:20,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 15:07:20,238 INFO L93 Difference]: Finished difference Result 33655 states and 117660 transitions. [2021-03-10 15:07:20,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-10 15:07:20,239 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-03-10 15:07:20,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 15:07:20,302 INFO L225 Difference]: With dead ends: 33655 [2021-03-10 15:07:20,303 INFO L226 Difference]: Without dead ends: 30931 [2021-03-10 15:07:20,303 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 69.1ms TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-03-10 15:07:20,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30931 states. [2021-03-10 15:07:20,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30931 to 24331. [2021-03-10 15:07:20,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24331 states, 24329 states have (on average 3.555756504583008) internal successors, (86508), 24330 states have internal predecessors, (86508), 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) [2021-03-10 15:07:20,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24331 states to 24331 states and 86508 transitions. [2021-03-10 15:07:20,736 INFO L78 Accepts]: Start accepts. Automaton has 24331 states and 86508 transitions. Word has length 42 [2021-03-10 15:07:20,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 15:07:20,737 INFO L480 AbstractCegarLoop]: Abstraction has 24331 states and 86508 transitions. [2021-03-10 15:07:20,737 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 15:07:20,737 INFO L276 IsEmpty]: Start isEmpty. Operand 24331 states and 86508 transitions. [2021-03-10 15:07:20,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-03-10 15:07:20,748 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 15:07:20,748 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 15:07:20,748 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-10 15:07:20,748 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-10 15:07:20,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 15:07:20,749 INFO L82 PathProgramCache]: Analyzing trace with hash -2134686040, now seen corresponding path program 1 times [2021-03-10 15:07:20,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 15:07:20,749 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609136649] [2021-03-10 15:07:20,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 15:07:20,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 15:07:20,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 15:07:20,803 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609136649] [2021-03-10 15:07:20,803 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 15:07:20,803 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-10 15:07:20,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077170540] [2021-03-10 15:07:20,804 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-10 15:07:20,804 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 15:07:20,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-10 15:07:20,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-10 15:07:20,805 INFO L87 Difference]: Start difference. First operand 24331 states and 86508 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 15:07:21,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 15:07:21,284 INFO L93 Difference]: Finished difference Result 28519 states and 99424 transitions. [2021-03-10 15:07:21,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-10 15:07:21,284 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-03-10 15:07:21,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 15:07:21,330 INFO L225 Difference]: With dead ends: 28519 [2021-03-10 15:07:21,330 INFO L226 Difference]: Without dead ends: 23893 [2021-03-10 15:07:21,331 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 60.4ms TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-03-10 15:07:21,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23893 states. [2021-03-10 15:07:21,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23893 to 19009. [2021-03-10 15:07:21,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19009 states, 19007 states have (on average 3.5341190087862366) internal successors, (67173), 19008 states have internal predecessors, (67173), 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) [2021-03-10 15:07:21,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19009 states to 19009 states and 67173 transitions. [2021-03-10 15:07:21,716 INFO L78 Accepts]: Start accepts. Automaton has 19009 states and 67173 transitions. Word has length 42 [2021-03-10 15:07:21,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 15:07:21,716 INFO L480 AbstractCegarLoop]: Abstraction has 19009 states and 67173 transitions. [2021-03-10 15:07:21,716 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 15:07:21,716 INFO L276 IsEmpty]: Start isEmpty. Operand 19009 states and 67173 transitions. [2021-03-10 15:07:21,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-03-10 15:07:21,734 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 15:07:21,734 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 15:07:21,734 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-10 15:07:21,734 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-10 15:07:21,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 15:07:21,735 INFO L82 PathProgramCache]: Analyzing trace with hash -37992933, now seen corresponding path program 1 times [2021-03-10 15:07:21,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 15:07:21,735 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770681653] [2021-03-10 15:07:21,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 15:07:21,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 15:07:21,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 15:07:21,828 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770681653] [2021-03-10 15:07:21,828 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 15:07:21,828 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-10 15:07:21,828 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677801884] [2021-03-10 15:07:21,829 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-10 15:07:21,829 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 15:07:21,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-10 15:07:21,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-10 15:07:21,830 INFO L87 Difference]: Start difference. First operand 19009 states and 67173 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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) [2021-03-10 15:07:22,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 15:07:22,066 INFO L93 Difference]: Finished difference Result 21745 states and 76457 transitions. [2021-03-10 15:07:22,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-10 15:07:22,067 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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 50 [2021-03-10 15:07:22,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 15:07:22,107 INFO L225 Difference]: With dead ends: 21745 [2021-03-10 15:07:22,107 INFO L226 Difference]: Without dead ends: 20065 [2021-03-10 15:07:22,108 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 72.9ms TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-03-10 15:07:22,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20065 states. [2021-03-10 15:07:22,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20065 to 18529. [2021-03-10 15:07:22,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18529 states, 18527 states have (on average 3.516003670318994) internal successors, (65141), 18528 states have internal predecessors, (65141), 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) [2021-03-10 15:07:22,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18529 states to 18529 states and 65141 transitions. [2021-03-10 15:07:22,606 INFO L78 Accepts]: Start accepts. Automaton has 18529 states and 65141 transitions. Word has length 50 [2021-03-10 15:07:22,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 15:07:22,606 INFO L480 AbstractCegarLoop]: Abstraction has 18529 states and 65141 transitions. [2021-03-10 15:07:22,606 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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) [2021-03-10 15:07:22,606 INFO L276 IsEmpty]: Start isEmpty. Operand 18529 states and 65141 transitions. [2021-03-10 15:07:22,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-03-10 15:07:22,622 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 15:07:22,622 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 15:07:22,622 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-10 15:07:22,622 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-10 15:07:22,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 15:07:22,623 INFO L82 PathProgramCache]: Analyzing trace with hash -1652346588, now seen corresponding path program 1 times [2021-03-10 15:07:22,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 15:07:22,623 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575749439] [2021-03-10 15:07:22,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 15:07:22,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 15:07:22,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 15:07:22,699 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575749439] [2021-03-10 15:07:22,700 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 15:07:22,700 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-10 15:07:22,700 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532086507] [2021-03-10 15:07:22,700 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-10 15:07:22,700 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 15:07:22,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-10 15:07:22,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-10 15:07:22,701 INFO L87 Difference]: Start difference. First operand 18529 states and 65141 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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) [2021-03-10 15:07:22,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 15:07:22,841 INFO L93 Difference]: Finished difference Result 21265 states and 74425 transitions. [2021-03-10 15:07:22,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-10 15:07:22,841 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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 50 [2021-03-10 15:07:22,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 15:07:22,876 INFO L225 Difference]: With dead ends: 21265 [2021-03-10 15:07:22,876 INFO L226 Difference]: Without dead ends: 18625 [2021-03-10 15:07:22,877 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 32.2ms TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-03-10 15:07:22,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18625 states. [2021-03-10 15:07:23,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18625 to 17089. [2021-03-10 15:07:23,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17089 states, 17087 states have (on average 3.4836425352607243) internal successors, (59525), 17088 states have internal predecessors, (59525), 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) [2021-03-10 15:07:23,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17089 states to 17089 states and 59525 transitions. [2021-03-10 15:07:23,145 INFO L78 Accepts]: Start accepts. Automaton has 17089 states and 59525 transitions. Word has length 50 [2021-03-10 15:07:23,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 15:07:23,146 INFO L480 AbstractCegarLoop]: Abstraction has 17089 states and 59525 transitions. [2021-03-10 15:07:23,146 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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) [2021-03-10 15:07:23,146 INFO L276 IsEmpty]: Start isEmpty. Operand 17089 states and 59525 transitions. [2021-03-10 15:07:23,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-03-10 15:07:23,159 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 15:07:23,159 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 15:07:23,159 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-10 15:07:23,160 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-10 15:07:23,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 15:07:23,160 INFO L82 PathProgramCache]: Analyzing trace with hash -394902742, now seen corresponding path program 2 times [2021-03-10 15:07:23,160 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 15:07:23,160 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539436073] [2021-03-10 15:07:23,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 15:07:23,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 15:07:23,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 15:07:23,216 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539436073] [2021-03-10 15:07:23,216 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 15:07:23,216 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-10 15:07:23,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521238296] [2021-03-10 15:07:23,216 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-10 15:07:23,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 15:07:23,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-10 15:07:23,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-10 15:07:23,217 INFO L87 Difference]: Start difference. First operand 17089 states and 59525 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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) [2021-03-10 15:07:23,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 15:07:23,336 INFO L93 Difference]: Finished difference Result 19585 states and 67973 transitions. [2021-03-10 15:07:23,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-10 15:07:23,337 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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 50 [2021-03-10 15:07:23,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 15:07:23,370 INFO L225 Difference]: With dead ends: 19585 [2021-03-10 15:07:23,371 INFO L226 Difference]: Without dead ends: 17905 [2021-03-10 15:07:23,371 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 28.9ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-03-10 15:07:23,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17905 states. [2021-03-10 15:07:23,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17905 to 16369. [2021-03-10 15:07:23,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16369 states, 16367 states have (on average 3.4799902242316856) internal successors, (56957), 16368 states have internal predecessors, (56957), 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) [2021-03-10 15:07:23,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16369 states to 16369 states and 56957 transitions. [2021-03-10 15:07:23,802 INFO L78 Accepts]: Start accepts. Automaton has 16369 states and 56957 transitions. Word has length 50 [2021-03-10 15:07:23,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 15:07:23,802 INFO L480 AbstractCegarLoop]: Abstraction has 16369 states and 56957 transitions. [2021-03-10 15:07:23,802 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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) [2021-03-10 15:07:23,802 INFO L276 IsEmpty]: Start isEmpty. Operand 16369 states and 56957 transitions. [2021-03-10 15:07:23,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-03-10 15:07:23,815 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 15:07:23,815 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 15:07:23,815 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-10 15:07:23,815 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-10 15:07:23,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 15:07:23,815 INFO L82 PathProgramCache]: Analyzing trace with hash -2013721028, now seen corresponding path program 3 times [2021-03-10 15:07:23,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 15:07:23,815 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101635045] [2021-03-10 15:07:23,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 15:07:23,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-10 15:07:23,827 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-10 15:07:23,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-10 15:07:23,838 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-10 15:07:23,859 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-10 15:07:23,859 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-03-10 15:07:23,860 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-10 15:07:23,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.03 03:07:23 BasicIcfg [2021-03-10 15:07:23,906 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-10 15:07:23,918 INFO L168 Benchmark]: Toolchain (without parser) took 20717.50 ms. Allocated memory was 255.9 MB in the beginning and 12.6 GB in the end (delta: 12.3 GB). Free memory was 234.9 MB in the beginning and 10.8 GB in the end (delta: -10.6 GB). Peak memory consumption was 1.8 GB. Max. memory is 16.0 GB. [2021-03-10 15:07:23,918 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-10 15:07:23,918 INFO L168 Benchmark]: CACSL2BoogieTranslator took 429.96 ms. Allocated memory was 255.9 MB in the beginning and 369.1 MB in the end (delta: 113.2 MB). Free memory was 234.3 MB in the beginning and 333.6 MB in the end (delta: -99.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-03-10 15:07:23,919 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.85 ms. Allocated memory is still 369.1 MB. Free memory was 333.6 MB in the beginning and 331.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-10 15:07:23,919 INFO L168 Benchmark]: Boogie Preprocessor took 30.87 ms. Allocated memory is still 369.1 MB. Free memory was 331.1 MB in the beginning and 329.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-10 15:07:23,919 INFO L168 Benchmark]: RCFGBuilder took 503.00 ms. Allocated memory is still 369.1 MB. Free memory was 329.4 MB in the beginning and 299.3 MB in the end (delta: 30.0 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. [2021-03-10 15:07:23,920 INFO L168 Benchmark]: TraceAbstraction took 19673.62 ms. Allocated memory was 369.1 MB in the beginning and 12.6 GB in the end (delta: 12.2 GB). Free memory was 299.3 MB in the beginning and 10.8 GB in the end (delta: -10.5 GB). Peak memory consumption was 1.7 GB. Max. memory is 16.0 GB. [2021-03-10 15:07:23,921 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 429.96 ms. Allocated memory was 255.9 MB in the beginning and 369.1 MB in the end (delta: 113.2 MB). Free memory was 234.3 MB in the beginning and 333.6 MB in the end (delta: -99.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 58.85 ms. Allocated memory is still 369.1 MB. Free memory was 333.6 MB in the beginning and 331.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 30.87 ms. Allocated memory is still 369.1 MB. Free memory was 331.1 MB in the beginning and 329.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 503.00 ms. Allocated memory is still 369.1 MB. Free memory was 329.4 MB in the beginning and 299.3 MB in the end (delta: 30.0 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. * TraceAbstraction took 19673.62 ms. Allocated memory was 369.1 MB in the beginning and 12.6 GB in the end (delta: 12.2 GB). Free memory was 299.3 MB in the beginning and 10.8 GB in the end (delta: -10.5 GB). Peak memory consumption was 1.7 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 738]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L704] 0 int w=0, r=0, x, y; VAL [r=0, w=0, x=0, y=0] [L748] 0 pthread_t t1, t2, t3, t4; VAL [r=0, w=0, x=0, y=0] [L749] FCALL, FORK 0 pthread_create(&t1, 0, writer, 0) VAL [r=0, w=0, x=0, y=0] [L750] FCALL, FORK 0 pthread_create(&t2, 0, reader, 0) VAL [r=0, w=0, x=0, y=0] [L751] FCALL, FORK 0 pthread_create(&t3, 0, writer, 0) VAL [r=0, w=0, x=0, y=0] [L724] 2 int l; VAL [r=0, w=0, x=0, y=0] [L752] FCALL, FORK 0 pthread_create(&t4, 0, reader, 0) VAL [r=0, w=0, x=0, y=0] [L724] 4 int l; VAL [r=0, w=0, x=0, y=0] [L725] CALL 4 __VERIFIER_atomic_take_read_lock() [L710] CALL 4 assume_abort_if_not(w==0) [L3] COND FALSE 4 !(!cond) [L710] RET 4 assume_abort_if_not(w==0) [L711] 4 r = r+1 [L725] RET 4 __VERIFIER_atomic_take_read_lock() [L727] 4 l = x VAL [r=1, w=0, x=0, y=0] [L730] 4 y = l VAL [r=1, w=0, x=0, y=0] [L733] 4 int ly = y; VAL [r=1, w=0, x=0, y=0] [L736] 4 int lx = x; VAL [r=1, w=0, x=0, y=0] [L738] COND FALSE 4 !(!(ly == lx)) VAL [r=1, w=0, x=0, y=0] [L740] 4 l = r-1 VAL [r=1, w=0, x=0, y=0] [L725] CALL 2 __VERIFIER_atomic_take_read_lock() [L710] CALL 2 assume_abort_if_not(w==0) [L3] COND FALSE 2 !(!cond) [L710] RET 2 assume_abort_if_not(w==0) [L711] 2 r = r+1 [L725] RET 2 __VERIFIER_atomic_take_read_lock() [L743] 4 r = l VAL [r=0, w=0, x=0, y=0] [L714] CALL 1 __VERIFIER_atomic_take_write_lock() [L706] CALL 1 assume_abort_if_not(w==0 && r==0) [L3] COND FALSE 1 !(!cond) [L706] RET 1 assume_abort_if_not(w==0 && r==0) [L707] 1 w = 1 [L714] RET 1 __VERIFIER_atomic_take_write_lock() [L727] 2 l = x VAL [r=0, w=1, x=0, y=0] [L716] 1 x = 3 VAL [r=0, w=1, x=3, y=0] [L730] 2 y = l VAL [r=0, w=1, x=3, y=0] [L733] 2 int ly = y; VAL [r=0, w=1, x=3, y=0] [L736] 2 int lx = x; VAL [r=0, w=1, x=3, y=0] [L738] COND TRUE 2 !(ly == lx) VAL [r=0, w=1, x=3, y=0] [L738] 2 reach_error() VAL [r=0, w=1, x=3, y=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 75 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 19514.5ms, OverallIterations: 10, TraceHistogramMax: 1, EmptinessCheckTime: 378.2ms, AutomataDifference: 5381.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 4284.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1986 SDtfs, 2205 SDslu, 4498 SDs, 0 SdLazy, 689 SolverSat, 53 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 478.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 92 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 475.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=52135occurred in iteration=1, InterpolantAutomatonStates: 77, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 8566.2ms AutomataMinimizationTime, 9 MinimizatonAttempts, 62475 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 27.6ms SsaConstructionTime, 139.4ms SatisfiabilityAnalysisTime, 514.5ms InterpolantComputationTime, 420 NumberOfCodeBlocks, 420 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 361 ConstructedInterpolants, 0 QuantifiedInterpolants, 661 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...