./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/36-apron_21-traces-cluster-based_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2ec6f5-5403-4f06-b6fd-3ad8aab56088/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2ec6f5-5403-4f06-b6fd-3ad8aab56088/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2ec6f5-5403-4f06-b6fd-3ad8aab56088/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2ec6f5-5403-4f06-b6fd-3ad8aab56088/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/36-apron_21-traces-cluster-based_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2ec6f5-5403-4f06-b6fd-3ad8aab56088/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2ec6f5-5403-4f06-b6fd-3ad8aab56088/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cec155e54548239c459fec40910e358deb5fad2ceffa658bfdeefddd1bc9e166 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 11:55:28,819 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:55:28,822 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:55:28,863 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:55:28,864 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:55:28,867 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:55:28,870 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:55:28,873 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:55:28,875 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:55:28,881 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:55:28,883 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:55:28,885 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:55:28,886 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:55:28,888 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:55:28,890 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:55:28,891 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:55:28,893 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:55:28,894 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:55:28,896 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:55:28,902 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:55:28,904 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:55:28,907 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:55:28,908 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:55:28,909 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:55:28,921 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:55:28,922 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:55:28,922 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:55:28,925 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:55:28,925 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:55:28,927 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:55:28,927 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:55:28,928 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:55:28,930 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:55:28,931 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:55:28,932 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:55:28,932 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:55:28,934 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:55:28,934 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:55:28,934 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:55:28,935 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:55:28,936 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:55:28,937 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2ec6f5-5403-4f06-b6fd-3ad8aab56088/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-20 11:55:28,977 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:55:28,978 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:55:28,978 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:55:28,979 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:55:28,980 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:55:28,980 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:55:28,980 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:55:28,981 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:55:28,981 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:55:28,981 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:55:28,982 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:55:28,982 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:55:28,983 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:55:28,983 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:55:28,983 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:55:28,983 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:55:28,983 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:55:28,984 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:55:28,984 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 11:55:28,984 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:55:28,984 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:55:28,984 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:55:28,985 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:55:28,985 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:55:28,985 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:55:28,985 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:55:28,985 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:55:28,986 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:55:28,986 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:55:28,987 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:55:28,987 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:55:28,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:55:28,987 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:55:28,987 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:55:28,988 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:55:28,988 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_2c2ec6f5-5403-4f06-b6fd-3ad8aab56088/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2ec6f5-5403-4f06-b6fd-3ad8aab56088/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cec155e54548239c459fec40910e358deb5fad2ceffa658bfdeefddd1bc9e166 [2022-11-20 11:55:29,262 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:55:29,289 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:55:29,293 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:55:29,295 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:55:29,295 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:55:29,297 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2ec6f5-5403-4f06-b6fd-3ad8aab56088/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/goblint-regression/36-apron_21-traces-cluster-based_true.i [2022-11-20 11:55:32,467 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:55:32,781 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:55:32,787 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2ec6f5-5403-4f06-b6fd-3ad8aab56088/sv-benchmarks/c/goblint-regression/36-apron_21-traces-cluster-based_true.i [2022-11-20 11:55:32,808 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2ec6f5-5403-4f06-b6fd-3ad8aab56088/bin/uautomizer-ug76WZFUDN/data/473954017/6d6b6c92e77f4721b44a98a6e134082c/FLAG1f4b64881 [2022-11-20 11:55:32,826 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2ec6f5-5403-4f06-b6fd-3ad8aab56088/bin/uautomizer-ug76WZFUDN/data/473954017/6d6b6c92e77f4721b44a98a6e134082c [2022-11-20 11:55:32,829 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:55:32,832 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:55:32,835 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:55:32,835 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:55:32,839 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:55:32,840 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:55:32" (1/1) ... [2022-11-20 11:55:32,841 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58829f73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:55:32, skipping insertion in model container [2022-11-20 11:55:32,842 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:55:32" (1/1) ... [2022-11-20 11:55:32,851 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:55:32,905 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:55:33,074 WARN L237 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_2c2ec6f5-5403-4f06-b6fd-3ad8aab56088/sv-benchmarks/c/goblint-regression/36-apron_21-traces-cluster-based_true.i[1092,1105] [2022-11-20 11:55:33,336 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:55:33,358 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:55:33,373 WARN L237 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_2c2ec6f5-5403-4f06-b6fd-3ad8aab56088/sv-benchmarks/c/goblint-regression/36-apron_21-traces-cluster-based_true.i[1092,1105] [2022-11-20 11:55:33,422 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:55:33,468 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:55:33,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:55:33 WrapperNode [2022-11-20 11:55:33,470 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:55:33,471 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:55:33,471 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:55:33,471 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:55:33,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:55:33" (1/1) ... [2022-11-20 11:55:33,500 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:55:33" (1/1) ... [2022-11-20 11:55:33,537 INFO L138 Inliner]: procedures = 165, calls = 45, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 129 [2022-11-20 11:55:33,537 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:55:33,538 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:55:33,538 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:55:33,538 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:55:33,549 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:55:33" (1/1) ... [2022-11-20 11:55:33,549 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:55:33" (1/1) ... [2022-11-20 11:55:33,567 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:55:33" (1/1) ... [2022-11-20 11:55:33,569 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:55:33" (1/1) ... [2022-11-20 11:55:33,585 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:55:33" (1/1) ... [2022-11-20 11:55:33,587 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:55:33" (1/1) ... [2022-11-20 11:55:33,589 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:55:33" (1/1) ... [2022-11-20 11:55:33,590 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:55:33" (1/1) ... [2022-11-20 11:55:33,593 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:55:33,601 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:55:33,602 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:55:33,602 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:55:33,603 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:55:33" (1/1) ... [2022-11-20 11:55:33,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:55:33,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2ec6f5-5403-4f06-b6fd-3ad8aab56088/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:55:33,638 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2ec6f5-5403-4f06-b6fd-3ad8aab56088/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:55:33,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2ec6f5-5403-4f06-b6fd-3ad8aab56088/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:55:33,694 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-11-20 11:55:33,695 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-11-20 11:55:33,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:55:33,695 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 11:55:33,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:55:33,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:55:33,696 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2022-11-20 11:55:33,696 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2022-11-20 11:55:33,696 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-20 11:55:33,696 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-20 11:55:33,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:55:33,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:55:33,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:55:33,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:55:33,698 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 11:55:33,829 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:55:33,832 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:55:34,284 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:55:34,295 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:55:34,295 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 11:55:34,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:55:34 BoogieIcfgContainer [2022-11-20 11:55:34,298 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:55:34,301 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:55:34,302 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:55:34,305 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:55:34,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:55:32" (1/3) ... [2022-11-20 11:55:34,306 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5db364f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:55:34, skipping insertion in model container [2022-11-20 11:55:34,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:55:33" (2/3) ... [2022-11-20 11:55:34,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5db364f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:55:34, skipping insertion in model container [2022-11-20 11:55:34,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:55:34" (3/3) ... [2022-11-20 11:55:34,320 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_21-traces-cluster-based_true.i [2022-11-20 11:55:34,335 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 11:55:34,347 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:55:34,347 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-20 11:55:34,348 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 11:55:34,518 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 11:55:34,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 172 places, 167 transitions, 349 flow [2022-11-20 11:55:34,715 INFO L130 PetriNetUnfolder]: 5/164 cut-off events. [2022-11-20 11:55:34,715 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:55:34,724 INFO L83 FinitePrefix]: Finished finitePrefix Result has 174 conditions, 164 events. 5/164 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 254 event pairs, 0 based on Foata normal form. 0/157 useless extension candidates. Maximal degree in co-relation 127. Up to 2 conditions per place. [2022-11-20 11:55:34,724 INFO L82 GeneralOperation]: Start removeDead. Operand has 172 places, 167 transitions, 349 flow [2022-11-20 11:55:34,734 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 169 places, 164 transitions, 337 flow [2022-11-20 11:55:34,752 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:55:34,761 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=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@785196e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:55:34,761 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-20 11:55:34,789 INFO L130 PetriNetUnfolder]: 0/68 cut-off events. [2022-11-20 11:55:34,789 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:55:34,790 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:55:34,790 INFO L209 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] [2022-11-20 11:55:34,791 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2022-11-20 11:55:34,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:55:34,798 INFO L85 PathProgramCache]: Analyzing trace with hash -406091225, now seen corresponding path program 1 times [2022-11-20 11:55:34,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:55:34,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061522771] [2022-11-20 11:55:34,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:55:34,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:55:35,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:55:35,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:55:35,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:55:35,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061522771] [2022-11-20 11:55:35,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061522771] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:55:35,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:55:35,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:55:35,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461861607] [2022-11-20 11:55:35,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:55:35,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:55:35,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:55:35,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:55:35,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:55:35,303 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 167 [2022-11-20 11:55:35,307 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 164 transitions, 337 flow. Second operand has 4 states, 4 states have (on average 145.75) internal successors, (583), 4 states have internal predecessors, (583), 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) [2022-11-20 11:55:35,307 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:55:35,308 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 167 [2022-11-20 11:55:35,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:55:35,482 INFO L130 PetriNetUnfolder]: 25/305 cut-off events. [2022-11-20 11:55:35,482 INFO L131 PetriNetUnfolder]: For 25/25 co-relation queries the response was YES. [2022-11-20 11:55:35,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 418 conditions, 305 events. 25/305 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1279 event pairs, 0 based on Foata normal form. 18/307 useless extension candidates. Maximal degree in co-relation 369. Up to 45 conditions per place. [2022-11-20 11:55:35,487 INFO L137 encePairwiseOnDemand]: 159/167 looper letters, 13 selfloop transitions, 3 changer transitions 11/161 dead transitions. [2022-11-20 11:55:35,488 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 161 transitions, 389 flow [2022-11-20 11:55:35,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:55:35,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-20 11:55:35,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 757 transitions. [2022-11-20 11:55:35,504 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9065868263473054 [2022-11-20 11:55:35,505 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 757 transitions. [2022-11-20 11:55:35,505 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 757 transitions. [2022-11-20 11:55:35,508 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:55:35,511 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 757 transitions. [2022-11-20 11:55:35,515 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 151.4) internal successors, (757), 5 states have internal predecessors, (757), 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) [2022-11-20 11:55:35,522 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 167.0) internal successors, (1002), 6 states have internal predecessors, (1002), 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) [2022-11-20 11:55:35,524 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 167.0) internal successors, (1002), 6 states have internal predecessors, (1002), 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) [2022-11-20 11:55:35,526 INFO L175 Difference]: Start difference. First operand has 169 places, 164 transitions, 337 flow. Second operand 5 states and 757 transitions. [2022-11-20 11:55:35,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 161 transitions, 389 flow [2022-11-20 11:55:35,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 161 transitions, 380 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-20 11:55:35,535 INFO L231 Difference]: Finished difference. Result has 165 places, 144 transitions, 300 flow [2022-11-20 11:55:35,538 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=300, PETRI_PLACES=165, PETRI_TRANSITIONS=144} [2022-11-20 11:55:35,542 INFO L288 CegarLoopForPetriNet]: 169 programPoint places, -4 predicate places. [2022-11-20 11:55:35,543 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 144 transitions, 300 flow [2022-11-20 11:55:35,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 145.75) internal successors, (583), 4 states have internal predecessors, (583), 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) [2022-11-20 11:55:35,544 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:55:35,545 INFO L209 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] [2022-11-20 11:55:35,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:55:35,546 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2022-11-20 11:55:35,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:55:35,547 INFO L85 PathProgramCache]: Analyzing trace with hash 296074362, now seen corresponding path program 1 times [2022-11-20 11:55:35,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:55:35,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240882022] [2022-11-20 11:55:35,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:55:35,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:55:35,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:55:35,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:55:35,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:55:35,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240882022] [2022-11-20 11:55:35,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240882022] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:55:35,720 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:55:35,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:55:35,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293382154] [2022-11-20 11:55:35,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:55:35,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:55:35,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:55:35,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:55:35,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:55:35,724 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 167 [2022-11-20 11:55:35,725 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 144 transitions, 300 flow. Second operand has 3 states, 3 states have (on average 148.0) internal successors, (444), 3 states have internal predecessors, (444), 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) [2022-11-20 11:55:35,725 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:55:35,726 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 167 [2022-11-20 11:55:35,726 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:55:35,770 INFO L130 PetriNetUnfolder]: 8/169 cut-off events. [2022-11-20 11:55:35,778 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-20 11:55:35,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 224 conditions, 169 events. 8/169 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 374 event pairs, 2 based on Foata normal form. 3/166 useless extension candidates. Maximal degree in co-relation 177. Up to 15 conditions per place. [2022-11-20 11:55:35,780 INFO L137 encePairwiseOnDemand]: 165/167 looper letters, 0 selfloop transitions, 0 changer transitions 145/145 dead transitions. [2022-11-20 11:55:35,781 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 145 transitions, 324 flow [2022-11-20 11:55:35,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:55:35,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:55:35,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 448 transitions. [2022-11-20 11:55:35,788 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8942115768463074 [2022-11-20 11:55:35,788 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 448 transitions. [2022-11-20 11:55:35,788 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 448 transitions. [2022-11-20 11:55:35,789 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:55:35,789 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 448 transitions. [2022-11-20 11:55:35,792 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 149.33333333333334) internal successors, (448), 3 states have internal predecessors, (448), 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) [2022-11-20 11:55:35,793 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 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) [2022-11-20 11:55:35,797 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 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) [2022-11-20 11:55:35,797 INFO L175 Difference]: Start difference. First operand has 165 places, 144 transitions, 300 flow. Second operand 3 states and 448 transitions. [2022-11-20 11:55:35,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 145 transitions, 324 flow [2022-11-20 11:55:35,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 145 transitions, 319 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-20 11:55:35,800 INFO L231 Difference]: Finished difference. Result has 153 places, 0 transitions, 0 flow [2022-11-20 11:55:35,801 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=293, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=153, PETRI_TRANSITIONS=0} [2022-11-20 11:55:35,802 INFO L288 CegarLoopForPetriNet]: 169 programPoint places, -16 predicate places. [2022-11-20 11:55:35,802 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 0 transitions, 0 flow [2022-11-20 11:55:35,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 148.0) internal successors, (444), 3 states have internal predecessors, (444), 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) [2022-11-20 11:55:35,806 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-20 11:55:35,808 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 7 remaining) [2022-11-20 11:55:35,809 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2022-11-20 11:55:35,810 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2022-11-20 11:55:35,811 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2022-11-20 11:55:35,812 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2022-11-20 11:55:35,812 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2022-11-20 11:55:35,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:55:35,813 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-20 11:55:35,818 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 11:55:35,818 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 11:55:35,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:55:35 BasicIcfg [2022-11-20 11:55:35,832 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 11:55:35,833 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:55:35,833 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:55:35,833 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:55:35,834 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:55:34" (3/4) ... [2022-11-20 11:55:35,837 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 11:55:35,843 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t2_fun [2022-11-20 11:55:35,843 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t3_fun [2022-11-20 11:55:35,844 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-20 11:55:35,850 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2022-11-20 11:55:35,851 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-20 11:55:35,851 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 11:55:35,851 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 11:55:35,896 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2ec6f5-5403-4f06-b6fd-3ad8aab56088/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 11:55:35,896 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:55:35,897 INFO L158 Benchmark]: Toolchain (without parser) took 3064.75ms. Allocated memory was 142.6MB in the beginning and 197.1MB in the end (delta: 54.5MB). Free memory was 98.6MB in the beginning and 149.2MB in the end (delta: -50.6MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2022-11-20 11:55:35,897 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 142.6MB. Free memory is still 85.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:55:35,897 INFO L158 Benchmark]: CACSL2BoogieTranslator took 634.90ms. Allocated memory is still 142.6MB. Free memory was 98.6MB in the beginning and 78.6MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-20 11:55:35,898 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.78ms. Allocated memory is still 142.6MB. Free memory was 78.6MB in the beginning and 76.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:55:35,898 INFO L158 Benchmark]: Boogie Preprocessor took 62.53ms. Allocated memory is still 142.6MB. Free memory was 76.6MB in the beginning and 75.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:55:35,899 INFO L158 Benchmark]: RCFGBuilder took 697.21ms. Allocated memory is still 142.6MB. Free memory was 75.0MB in the beginning and 57.2MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-20 11:55:35,899 INFO L158 Benchmark]: TraceAbstraction took 1530.70ms. Allocated memory was 142.6MB in the beginning and 197.1MB in the end (delta: 54.5MB). Free memory was 56.7MB in the beginning and 152.4MB in the end (delta: -95.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:55:35,900 INFO L158 Benchmark]: Witness Printer took 63.16ms. Allocated memory is still 197.1MB. Free memory was 152.4MB in the beginning and 149.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 11:55:35,901 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 142.6MB. Free memory is still 85.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 634.90ms. Allocated memory is still 142.6MB. Free memory was 98.6MB in the beginning and 78.6MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.78ms. Allocated memory is still 142.6MB. Free memory was 78.6MB in the beginning and 76.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.53ms. Allocated memory is still 142.6MB. Free memory was 76.6MB in the beginning and 75.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 697.21ms. Allocated memory is still 142.6MB. Free memory was 75.0MB in the beginning and 57.2MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1530.70ms. Allocated memory was 142.6MB in the beginning and 197.1MB in the end (delta: 54.5MB). Free memory was 56.7MB in the beginning and 152.4MB in the end (delta: -95.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 63.16ms. Allocated memory is still 197.1MB. Free memory was 152.4MB in the beginning and 149.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 692]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 692]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 239 locations, 7 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: 1.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 44 IncrementalHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 4 mSDtfsCounter, 44 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=337occurred in iteration=0, InterpolantAutomatonStates: 8, 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, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 103 ConstructedInterpolants, 0 QuantifiedInterpolants, 149 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-20 11:55:35,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2ec6f5-5403-4f06-b6fd-3ad8aab56088/bin/uautomizer-ug76WZFUDN/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