./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/test-semi1.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceeaa2cc-4fdc-4036-8ea7-3645819e0bfe/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceeaa2cc-4fdc-4036-8ea7-3645819e0bfe/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceeaa2cc-4fdc-4036-8ea7-3645819e0bfe/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceeaa2cc-4fdc-4036-8ea7-3645819e0bfe/bin/uautomizer-wIGwrQj20G/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/test-semi1.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceeaa2cc-4fdc-4036-8ea7-3645819e0bfe/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceeaa2cc-4fdc-4036-8ea7-3645819e0bfe/bin/uautomizer-wIGwrQj20G --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e1fb758430fdab5e598998cc874ea93afa2de5f622c2b42d836b77952562e01f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 13:42:02,843 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 13:42:02,846 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 13:42:02,897 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 13:42:02,898 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 13:42:02,903 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 13:42:02,906 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 13:42:02,908 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 13:42:02,910 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 13:42:02,911 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 13:42:02,913 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 13:42:02,914 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 13:42:02,915 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 13:42:02,916 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 13:42:02,917 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 13:42:02,919 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 13:42:02,920 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 13:42:02,921 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 13:42:02,924 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 13:42:02,933 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 13:42:02,935 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 13:42:02,941 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 13:42:02,942 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 13:42:02,943 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 13:42:02,947 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 13:42:02,947 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 13:42:02,948 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 13:42:02,949 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 13:42:02,949 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 13:42:02,950 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 13:42:02,951 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 13:42:02,951 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 13:42:02,952 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 13:42:02,960 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 13:42:02,962 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 13:42:02,962 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 13:42:02,963 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 13:42:02,963 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 13:42:02,963 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 13:42:02,965 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 13:42:02,965 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 13:42:02,966 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceeaa2cc-4fdc-4036-8ea7-3645819e0bfe/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-23 13:42:03,012 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 13:42:03,012 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 13:42:03,016 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 13:42:03,017 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 13:42:03,024 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 13:42:03,024 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 13:42:03,024 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 13:42:03,025 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 13:42:03,025 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 13:42:03,025 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 13:42:03,025 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 13:42:03,026 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 13:42:03,026 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 13:42:03,026 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 13:42:03,026 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 13:42:03,026 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 13:42:03,026 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 13:42:03,027 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 13:42:03,027 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 13:42:03,027 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 13:42:03,027 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 13:42:03,027 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 13:42:03,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:42:03,028 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 13:42:03,028 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 13:42:03,028 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 13:42:03,028 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 13:42:03,029 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 13:42:03,029 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 13:42:03,029 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 13:42:03,029 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 13:42:03,029 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 13:42:03,030 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceeaa2cc-4fdc-4036-8ea7-3645819e0bfe/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceeaa2cc-4fdc-4036-8ea7-3645819e0bfe/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1fb758430fdab5e598998cc874ea93afa2de5f622c2b42d836b77952562e01f [2021-11-23 13:42:03,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 13:42:03,308 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 13:42:03,310 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 13:42:03,312 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 13:42:03,313 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 13:42:03,314 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceeaa2cc-4fdc-4036-8ea7-3645819e0bfe/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/weaver/test-semi1.wvr.c [2021-11-23 13:42:03,398 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceeaa2cc-4fdc-4036-8ea7-3645819e0bfe/bin/uautomizer-wIGwrQj20G/data/5c85844ef/2e4d405d79e045ed9b54babecd19fa93/FLAGbe30b916b [2021-11-23 13:42:03,866 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 13:42:03,866 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceeaa2cc-4fdc-4036-8ea7-3645819e0bfe/sv-benchmarks/c/weaver/test-semi1.wvr.c [2021-11-23 13:42:03,873 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceeaa2cc-4fdc-4036-8ea7-3645819e0bfe/bin/uautomizer-wIGwrQj20G/data/5c85844ef/2e4d405d79e045ed9b54babecd19fa93/FLAGbe30b916b [2021-11-23 13:42:04,265 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceeaa2cc-4fdc-4036-8ea7-3645819e0bfe/bin/uautomizer-wIGwrQj20G/data/5c85844ef/2e4d405d79e045ed9b54babecd19fa93 [2021-11-23 13:42:04,269 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 13:42:04,270 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 13:42:04,272 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 13:42:04,272 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 13:42:04,276 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 13:42:04,276 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:42:04" (1/1) ... [2021-11-23 13:42:04,277 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4afeb22c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:04, skipping insertion in model container [2021-11-23 13:42:04,278 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:42:04" (1/1) ... [2021-11-23 13:42:04,285 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 13:42:04,300 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 13:42:04,504 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceeaa2cc-4fdc-4036-8ea7-3645819e0bfe/sv-benchmarks/c/weaver/test-semi1.wvr.c[1979,1992] [2021-11-23 13:42:04,509 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:42:04,519 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 13:42:04,542 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceeaa2cc-4fdc-4036-8ea7-3645819e0bfe/sv-benchmarks/c/weaver/test-semi1.wvr.c[1979,1992] [2021-11-23 13:42:04,544 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:42:04,560 INFO L208 MainTranslator]: Completed translation [2021-11-23 13:42:04,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:04 WrapperNode [2021-11-23 13:42:04,561 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 13:42:04,562 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 13:42:04,562 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 13:42:04,562 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 13:42:04,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:04" (1/1) ... [2021-11-23 13:42:04,580 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:04" (1/1) ... [2021-11-23 13:42:04,606 INFO L137 Inliner]: procedures = 21, calls = 26, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 71 [2021-11-23 13:42:04,606 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 13:42:04,607 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 13:42:04,607 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 13:42:04,608 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 13:42:04,618 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:04" (1/1) ... [2021-11-23 13:42:04,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:04" (1/1) ... [2021-11-23 13:42:04,622 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:04" (1/1) ... [2021-11-23 13:42:04,622 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:04" (1/1) ... [2021-11-23 13:42:04,628 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:04" (1/1) ... [2021-11-23 13:42:04,631 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:04" (1/1) ... [2021-11-23 13:42:04,633 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:04" (1/1) ... [2021-11-23 13:42:04,636 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 13:42:04,637 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 13:42:04,637 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 13:42:04,637 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 13:42:04,638 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:04" (1/1) ... [2021-11-23 13:42:04,647 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:42:04,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceeaa2cc-4fdc-4036-8ea7-3645819e0bfe/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:42:04,675 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceeaa2cc-4fdc-4036-8ea7-3645819e0bfe/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 13:42:04,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceeaa2cc-4fdc-4036-8ea7-3645819e0bfe/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 13:42:04,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 13:42:04,735 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-23 13:42:04,735 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-23 13:42:04,735 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-23 13:42:04,735 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-23 13:42:04,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 13:42:04,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 13:42:04,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 13:42:04,736 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-23 13:42:04,736 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-23 13:42:04,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 13:42:04,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 13:42:04,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 13:42:04,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 13:42:04,739 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-23 13:42:04,882 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 13:42:04,884 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 13:42:05,125 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 13:42:05,177 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 13:42:05,178 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 13:42:05,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:42:05 BoogieIcfgContainer [2021-11-23 13:42:05,181 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 13:42:05,183 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 13:42:05,183 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 13:42:05,187 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 13:42:05,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:42:04" (1/3) ... [2021-11-23 13:42:05,188 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cb2c730 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:42:05, skipping insertion in model container [2021-11-23 13:42:05,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:04" (2/3) ... [2021-11-23 13:42:05,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cb2c730 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:42:05, skipping insertion in model container [2021-11-23 13:42:05,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:42:05" (3/3) ... [2021-11-23 13:42:05,191 INFO L111 eAbstractionObserver]: Analyzing ICFG test-semi1.wvr.c [2021-11-23 13:42:05,197 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-23 13:42:05,197 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 13:42:05,198 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 13:42:05,198 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-23 13:42:05,228 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 13:42:05,229 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 13:42:05,229 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 13:42:05,230 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 13:42:05,230 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 13:42:05,230 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 13:42:05,231 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 13:42:05,231 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 13:42:05,231 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 13:42:05,232 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 13:42:05,232 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 13:42:05,232 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 13:42:05,233 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 13:42:05,233 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 13:42:05,233 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 13:42:05,233 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 13:42:05,237 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 13:42:05,238 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 13:42:05,238 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 13:42:05,239 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 13:42:05,240 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 13:42:05,240 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 13:42:05,240 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 13:42:05,241 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 13:42:05,244 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-11-23 13:42:05,295 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 13:42:05,304 INFO L339 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=PETRI_NET, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 13:42:05,304 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-23 13:42:05,321 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 82 transitions, 180 flow [2021-11-23 13:42:05,369 INFO L129 PetriNetUnfolder]: 3/80 cut-off events. [2021-11-23 13:42:05,370 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-11-23 13:42:05,372 INFO L84 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 80 events. 3/80 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 18 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2021-11-23 13:42:05,372 INFO L82 GeneralOperation]: Start removeDead. Operand has 86 places, 82 transitions, 180 flow [2021-11-23 13:42:05,377 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 75 places, 71 transitions, 154 flow [2021-11-23 13:42:05,402 INFO L129 PetriNetUnfolder]: 3/70 cut-off events. [2021-11-23 13:42:05,403 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-11-23 13:42:05,403 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 13:42:05,404 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:42:05,404 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-23 13:42:05,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:42:05,410 INFO L85 PathProgramCache]: Analyzing trace with hash -454694740, now seen corresponding path program 1 times [2021-11-23 13:42:05,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:42:05,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804895928] [2021-11-23 13:42:05,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:42:05,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:42:05,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:42:06,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:42:06,029 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:42:06,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804895928] [2021-11-23 13:42:06,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804895928] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:42:06,031 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:42:06,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-23 13:42:06,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710362089] [2021-11-23 13:42:06,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:42:06,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 13:42:06,048 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:42:06,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 13:42:06,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-23 13:42:06,114 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 82 [2021-11-23 13:42:06,134 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 71 transitions, 154 flow. Second operand has 8 states, 8 states have (on average 55.75) internal successors, (446), 8 states have internal predecessors, (446), 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) [2021-11-23 13:42:06,135 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-23 13:42:06,135 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 82 [2021-11-23 13:42:06,136 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-23 13:42:06,412 INFO L129 PetriNetUnfolder]: 2/92 cut-off events. [2021-11-23 13:42:06,412 INFO L130 PetriNetUnfolder]: For 18/21 co-relation queries the response was YES. [2021-11-23 13:42:06,413 INFO L84 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 92 events. 2/92 cut-off events. For 18/21 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 90 event pairs, 0 based on Foata normal form. 5/94 useless extension candidates. Maximal degree in co-relation 36. Up to 17 conditions per place. [2021-11-23 13:42:06,414 INFO L132 encePairwiseOnDemand]: 68/82 looper letters, 18 selfloop transitions, 4 changer transitions 13/78 dead transitions. [2021-11-23 13:42:06,414 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 78 transitions, 250 flow [2021-11-23 13:42:06,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-23 13:42:06,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-11-23 13:42:06,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 570 transitions. [2021-11-23 13:42:06,434 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6951219512195121 [2021-11-23 13:42:06,435 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 570 transitions. [2021-11-23 13:42:06,435 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 570 transitions. [2021-11-23 13:42:06,438 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 13:42:06,440 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 570 transitions. [2021-11-23 13:42:06,445 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 57.0) internal successors, (570), 10 states have internal predecessors, (570), 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) [2021-11-23 13:42:06,456 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 82.0) internal successors, (902), 11 states have internal predecessors, (902), 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) [2021-11-23 13:42:06,457 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 82.0) internal successors, (902), 11 states have internal predecessors, (902), 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) [2021-11-23 13:42:06,466 INFO L186 Difference]: Start difference. First operand has 75 places, 71 transitions, 154 flow. Second operand 10 states and 570 transitions. [2021-11-23 13:42:06,467 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 78 transitions, 250 flow [2021-11-23 13:42:06,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 78 transitions, 234 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-11-23 13:42:06,480 INFO L242 Difference]: Finished difference. Result has 83 places, 65 transitions, 152 flow [2021-11-23 13:42:06,482 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=152, PETRI_PLACES=83, PETRI_TRANSITIONS=65} [2021-11-23 13:42:06,491 INFO L334 CegarLoopForPetriNet]: 75 programPoint places, 8 predicate places. [2021-11-23 13:42:06,491 INFO L470 AbstractCegarLoop]: Abstraction has has 83 places, 65 transitions, 152 flow [2021-11-23 13:42:06,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 55.75) internal successors, (446), 8 states have internal predecessors, (446), 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) [2021-11-23 13:42:06,493 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 13:42:06,493 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:42:06,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 13:42:06,494 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-23 13:42:06,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:42:06,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1050215850, now seen corresponding path program 2 times [2021-11-23 13:42:06,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:42:06,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881088268] [2021-11-23 13:42:06,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:42:06,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:42:06,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:42:06,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:42:06,754 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:42:06,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881088268] [2021-11-23 13:42:06,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881088268] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:42:06,755 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:42:06,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-23 13:42:06,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779615696] [2021-11-23 13:42:06,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:42:06,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 13:42:06,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:42:06,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 13:42:06,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-23 13:42:06,764 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 82 [2021-11-23 13:42:06,765 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 65 transitions, 152 flow. Second operand has 8 states, 8 states have (on average 55.75) internal successors, (446), 8 states have internal predecessors, (446), 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) [2021-11-23 13:42:06,766 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-23 13:42:06,766 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 82 [2021-11-23 13:42:06,766 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-23 13:42:06,914 INFO L129 PetriNetUnfolder]: 0/62 cut-off events. [2021-11-23 13:42:06,915 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-11-23 13:42:06,915 INFO L84 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 62 events. 0/62 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 12 event pairs, 0 based on Foata normal form. 1/63 useless extension candidates. Maximal degree in co-relation 0. Up to 9 conditions per place. [2021-11-23 13:42:06,916 INFO L132 encePairwiseOnDemand]: 74/82 looper letters, 0 selfloop transitions, 0 changer transitions 62/62 dead transitions. [2021-11-23 13:42:06,916 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 62 transitions, 186 flow [2021-11-23 13:42:06,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 13:42:06,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-11-23 13:42:06,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 446 transitions. [2021-11-23 13:42:06,923 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6798780487804879 [2021-11-23 13:42:06,923 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 446 transitions. [2021-11-23 13:42:06,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 446 transitions. [2021-11-23 13:42:06,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 13:42:06,924 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 446 transitions. [2021-11-23 13:42:06,926 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 55.75) internal successors, (446), 8 states have internal predecessors, (446), 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) [2021-11-23 13:42:06,930 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 82.0) internal successors, (738), 9 states have internal predecessors, (738), 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) [2021-11-23 13:42:06,931 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 82.0) internal successors, (738), 9 states have internal predecessors, (738), 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) [2021-11-23 13:42:06,931 INFO L186 Difference]: Start difference. First operand has 83 places, 65 transitions, 152 flow. Second operand 8 states and 446 transitions. [2021-11-23 13:42:06,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 62 transitions, 186 flow [2021-11-23 13:42:06,933 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 62 transitions, 174 flow, removed 2 selfloop flow, removed 5 redundant places. [2021-11-23 13:42:06,934 INFO L242 Difference]: Finished difference. Result has 74 places, 0 transitions, 0 flow [2021-11-23 13:42:06,934 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=74, PETRI_TRANSITIONS=0} [2021-11-23 13:42:06,935 INFO L334 CegarLoopForPetriNet]: 75 programPoint places, -1 predicate places. [2021-11-23 13:42:06,936 INFO L470 AbstractCegarLoop]: Abstraction has has 74 places, 0 transitions, 0 flow [2021-11-23 13:42:06,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 55.75) internal successors, (446), 8 states have internal predecessors, (446), 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) [2021-11-23 13:42:06,939 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2021-11-23 13:42:06,940 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2021-11-23 13:42:06,941 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2021-11-23 13:42:06,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 13:42:06,946 INFO L732 BasicCegarLoop]: Path program histogram: [2] [2021-11-23 13:42:06,949 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-23 13:42:06,950 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 13:42:06,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:42:06 BasicIcfg [2021-11-23 13:42:06,961 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 13:42:06,963 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 13:42:06,963 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 13:42:06,963 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 13:42:06,964 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:42:05" (3/4) ... [2021-11-23 13:42:06,967 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 13:42:06,975 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-11-23 13:42:06,975 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-11-23 13:42:06,984 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2021-11-23 13:42:06,987 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-23 13:42:06,987 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-23 13:42:06,988 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 13:42:07,056 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceeaa2cc-4fdc-4036-8ea7-3645819e0bfe/bin/uautomizer-wIGwrQj20G/witness.graphml [2021-11-23 13:42:07,056 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 13:42:07,057 INFO L158 Benchmark]: Toolchain (without parser) took 2786.55ms. Allocated memory was 81.8MB in the beginning and 109.1MB in the end (delta: 27.3MB). Free memory was 47.0MB in the beginning and 40.3MB in the end (delta: 6.7MB). Peak memory consumption was 33.4MB. Max. memory is 16.1GB. [2021-11-23 13:42:07,069 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 81.8MB. Free memory was 54.3MB in the beginning and 54.2MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 13:42:07,070 INFO L158 Benchmark]: CACSL2BoogieTranslator took 289.23ms. Allocated memory was 81.8MB in the beginning and 109.1MB in the end (delta: 27.3MB). Free memory was 46.7MB in the beginning and 84.4MB in the end (delta: -37.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 13:42:07,071 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.43ms. Allocated memory is still 109.1MB. Free memory was 84.4MB in the beginning and 82.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 13:42:07,071 INFO L158 Benchmark]: Boogie Preprocessor took 28.78ms. Allocated memory is still 109.1MB. Free memory was 82.9MB in the beginning and 81.9MB in the end (delta: 1.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 13:42:07,072 INFO L158 Benchmark]: RCFGBuilder took 544.02ms. Allocated memory is still 109.1MB. Free memory was 81.9MB in the beginning and 69.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 13:42:07,072 INFO L158 Benchmark]: TraceAbstraction took 1777.75ms. Allocated memory is still 109.1MB. Free memory was 68.8MB in the beginning and 43.2MB in the end (delta: 25.6MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. [2021-11-23 13:42:07,072 INFO L158 Benchmark]: Witness Printer took 93.59ms. Allocated memory is still 109.1MB. Free memory was 43.2MB in the beginning and 40.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 13:42:07,077 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 81.8MB. Free memory was 54.3MB in the beginning and 54.2MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 289.23ms. Allocated memory was 81.8MB in the beginning and 109.1MB in the end (delta: 27.3MB). Free memory was 46.7MB in the beginning and 84.4MB in the end (delta: -37.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.43ms. Allocated memory is still 109.1MB. Free memory was 84.4MB in the beginning and 82.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 28.78ms. Allocated memory is still 109.1MB. Free memory was 82.9MB in the beginning and 81.9MB in the end (delta: 1.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 544.02ms. Allocated memory is still 109.1MB. Free memory was 81.9MB in the beginning and 69.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1777.75ms. Allocated memory is still 109.1MB. Free memory was 68.8MB in the beginning and 43.2MB in the end (delta: 25.6MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. * Witness Printer took 93.59ms. Allocated memory is still 109.1MB. Free memory was 43.2MB in the beginning and 40.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 72]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 90 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 41 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 41 mSDsluCounter, 60 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 68 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 164 IncrementalHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 24 mSDtfsCounter, 164 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=154occurred in iteration=0, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 130 NumberOfCodeBlocks, 130 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 128 ConstructedInterpolants, 0 QuantifiedInterpolants, 588 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-11-23 13:42:07,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceeaa2cc-4fdc-4036-8ea7-3645819e0bfe/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE