/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/weaver/parallel-bakery-4.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 10:53:45,818 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 10:53:45,820 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 10:53:45,850 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 10:53:45,851 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 10:53:45,856 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 10:53:45,860 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 10:53:45,865 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 10:53:45,867 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 10:53:45,872 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 10:53:45,872 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 10:53:45,873 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 10:53:45,873 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 10:53:45,874 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 10:53:45,874 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 10:53:45,875 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 10:53:45,875 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 10:53:45,876 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 10:53:45,877 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 10:53:45,878 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 10:53:45,878 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 10:53:45,881 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 10:53:45,882 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 10:53:45,883 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 10:53:45,885 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 10:53:45,885 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 10:53:45,885 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 10:53:45,886 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 10:53:45,886 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 10:53:45,887 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-16 10:53:45,887 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 10:53:45,887 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 10:53:45,888 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 10:53:45,888 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 10:53:45,889 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 10:53:45,889 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 10:53:45,889 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 10:53:45,890 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 10:53:45,890 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 10:53:45,890 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 10:53:45,891 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 10:53:45,892 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 [2022-09-16 10:53:45,906 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 10:53:45,906 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 10:53:45,906 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-16 10:53:45,906 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-16 10:53:45,907 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 10:53:45,910 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 10:53:45,910 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 10:53:45,911 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 10:53:45,911 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 10:53:45,911 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 10:53:45,911 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 10:53:45,911 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 10:53:45,912 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 10:53:45,912 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 10:53:45,912 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 10:53:45,912 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 10:53:45,912 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 10:53:45,912 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 10:53:45,912 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 10:53:45,912 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 10:53:45,912 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 10:53:45,912 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 10:53:45,912 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 10:53:45,913 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 10:53:45,913 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 10:53:45,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:53:45,913 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 10:53:45,913 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 10:53:45,913 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 10:53:45,913 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 10:53:45,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 10:53:45,914 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 10:53:45,914 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-16 10:53:45,914 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 10:53:46,114 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 10:53:46,138 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 10:53:46,140 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 10:53:46,141 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 10:53:46,141 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 10:53:46,143 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-bakery-4.wvr.c [2022-09-16 10:53:46,189 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be70114e6/ca44ac7843b54c01b53bb5c61a332b7d/FLAGc2676480f [2022-09-16 10:53:46,562 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 10:53:46,563 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-bakery-4.wvr.c [2022-09-16 10:53:46,575 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be70114e6/ca44ac7843b54c01b53bb5c61a332b7d/FLAGc2676480f [2022-09-16 10:53:46,586 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be70114e6/ca44ac7843b54c01b53bb5c61a332b7d [2022-09-16 10:53:46,593 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 10:53:46,594 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 10:53:46,596 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 10:53:46,596 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 10:53:46,599 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 10:53:46,599 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:53:46" (1/1) ... [2022-09-16 10:53:46,600 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71aa9c64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:53:46, skipping insertion in model container [2022-09-16 10:53:46,600 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:53:46" (1/1) ... [2022-09-16 10:53:46,605 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 10:53:46,628 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 10:53:46,898 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-bakery-4.wvr.c[7978,7991] [2022-09-16 10:53:46,899 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:53:46,911 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 10:53:46,989 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-bakery-4.wvr.c[7978,7991] [2022-09-16 10:53:46,990 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:53:47,000 INFO L208 MainTranslator]: Completed translation [2022-09-16 10:53:47,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:53:47 WrapperNode [2022-09-16 10:53:47,000 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 10:53:47,001 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 10:53:47,001 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 10:53:47,001 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 10:53:47,037 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:53:47" (1/1) ... [2022-09-16 10:53:47,045 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:53:47" (1/1) ... [2022-09-16 10:53:47,112 INFO L138 Inliner]: procedures = 23, calls = 176, calls flagged for inlining = 28, calls inlined = 28, statements flattened = 456 [2022-09-16 10:53:47,112 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 10:53:47,113 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 10:53:47,113 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 10:53:47,113 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 10:53:47,142 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:53:47" (1/1) ... [2022-09-16 10:53:47,142 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:53:47" (1/1) ... [2022-09-16 10:53:47,146 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:53:47" (1/1) ... [2022-09-16 10:53:47,147 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:53:47" (1/1) ... [2022-09-16 10:53:47,181 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:53:47" (1/1) ... [2022-09-16 10:53:47,184 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:53:47" (1/1) ... [2022-09-16 10:53:47,185 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:53:47" (1/1) ... [2022-09-16 10:53:47,188 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 10:53:47,205 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 10:53:47,205 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 10:53:47,205 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 10:53:47,212 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:53:47" (1/1) ... [2022-09-16 10:53:47,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:53:47,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:53:47,252 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-09-16 10:53:47,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-09-16 10:53:47,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 10:53:47,286 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-09-16 10:53:47,286 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-09-16 10:53:47,286 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-09-16 10:53:47,286 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-09-16 10:53:47,286 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-09-16 10:53:47,286 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-09-16 10:53:47,286 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-09-16 10:53:47,286 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-09-16 10:53:47,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 10:53:47,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 10:53:47,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 10:53:47,288 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 10:53:47,288 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 10:53:47,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 10:53:47,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 10:53:47,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-16 10:53:47,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 10:53:47,290 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-16 10:53:47,385 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 10:53:47,386 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 10:53:47,789 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 10:53:47,942 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 10:53:47,942 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-16 10:53:47,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:53:47 BoogieIcfgContainer [2022-09-16 10:53:47,944 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 10:53:47,945 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 10:53:47,945 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 10:53:47,948 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 10:53:47,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 10:53:46" (1/3) ... [2022-09-16 10:53:47,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23d73742 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:53:47, skipping insertion in model container [2022-09-16 10:53:47,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:53:47" (2/3) ... [2022-09-16 10:53:47,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23d73742 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:53:47, skipping insertion in model container [2022-09-16 10:53:47,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:53:47" (3/3) ... [2022-09-16 10:53:47,950 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-bakery-4.wvr.c [2022-09-16 10:53:47,955 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-16 10:53:47,962 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 10:53:47,962 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-09-16 10:53:47,962 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 10:53:48,030 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-09-16 10:53:48,065 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 228 places, 217 transitions, 466 flow [2022-09-16 10:54:17,366 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1036209 states, 1035585 states have (on average 4.498028650472921) internal successors, (4658091), 1036208 states have internal predecessors, (4658091), 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) [2022-09-16 10:54:17,398 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 10:54:17,415 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@10aa20e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 10:54:17,415 INFO L358 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2022-09-16 10:54:19,582 INFO L276 IsEmpty]: Start isEmpty. Operand has 1036209 states, 1035585 states have (on average 4.498028650472921) internal successors, (4658091), 1036208 states have internal predecessors, (4658091), 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) [2022-09-16 10:54:19,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-09-16 10:54:19,589 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:54:19,589 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:54:19,590 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2022-09-16 10:54:19,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:54:19,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1682171443, now seen corresponding path program 1 times [2022-09-16 10:54:19,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:54:19,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661835846] [2022-09-16 10:54:19,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:54:19,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:54:19,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:54:19,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:54:19,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:54:19,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661835846] [2022-09-16 10:54:19,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661835846] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:54:19,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:54:19,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 10:54:19,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481072721] [2022-09-16 10:54:19,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:54:19,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 10:54:19,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:54:19,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 10:54:19,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:54:22,041 INFO L87 Difference]: Start difference. First operand has 1036209 states, 1035585 states have (on average 4.498028650472921) internal successors, (4658091), 1036208 states have internal predecessors, (4658091), 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 5 states, 4 states have (on average 19.75) internal successors, (79), 5 states have internal predecessors, (79), 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) [2022-09-16 10:54:48,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:54:48,439 INFO L93 Difference]: Finished difference Result 948398 states and 4256471 transitions. [2022-09-16 10:54:48,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-16 10:54:48,494 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.75) internal successors, (79), 5 states have internal predecessors, (79), 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 79 [2022-09-16 10:54:48,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:55:10,962 INFO L225 Difference]: With dead ends: 948398 [2022-09-16 10:55:10,963 INFO L226 Difference]: Without dead ends: 948397 [2022-09-16 10:55:10,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-09-16 10:55:10,969 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 262 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-09-16 10:55:10,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 410 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]