./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 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_42a95c06-852c-430f-b6c1-35bbd158c631/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42a95c06-852c-430f-b6c1-35bbd158c631/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42a95c06-852c-430f-b6c1-35bbd158c631/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42a95c06-852c-430f-b6c1-35bbd158c631/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42a95c06-852c-430f-b6c1-35bbd158c631/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42a95c06-852c-430f-b6c1-35bbd158c631/bin/uautomizer-vX5HgA9Q3a --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 7b8a2d8a35be535b4f8c573d98b12278b19043c6b0cec82927e2ac6d7dd36ebb --- 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-b5237d8 [2022-11-21 14:02:56,252 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 14:02:56,259 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 14:02:56,287 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 14:02:56,287 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 14:02:56,291 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 14:02:56,294 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 14:02:56,297 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 14:02:56,300 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 14:02:56,305 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 14:02:56,308 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 14:02:56,311 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 14:02:56,311 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 14:02:56,314 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 14:02:56,317 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 14:02:56,318 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 14:02:56,320 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 14:02:56,321 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 14:02:56,322 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 14:02:56,329 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 14:02:56,331 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 14:02:56,333 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 14:02:56,334 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 14:02:56,335 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 14:02:56,344 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 14:02:56,344 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 14:02:56,345 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 14:02:56,346 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 14:02:56,346 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 14:02:56,347 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 14:02:56,348 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 14:02:56,348 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 14:02:56,349 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 14:02:56,350 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 14:02:56,351 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 14:02:56,351 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 14:02:56,352 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 14:02:56,352 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 14:02:56,353 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 14:02:56,353 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 14:02:56,354 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 14:02:56,355 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42a95c06-852c-430f-b6c1-35bbd158c631/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-21 14:02:56,395 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 14:02:56,395 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 14:02:56,396 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 14:02:56,396 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 14:02:56,397 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 14:02:56,397 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 14:02:56,398 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 14:02:56,399 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 14:02:56,399 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 14:02:56,399 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 14:02:56,400 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 14:02:56,401 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 14:02:56,401 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 14:02:56,401 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 14:02:56,401 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 14:02:56,402 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 14:02:56,402 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 14:02:56,402 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 14:02:56,402 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 14:02:56,403 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 14:02:56,403 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 14:02:56,403 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 14:02:56,403 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 14:02:56,404 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 14:02:56,404 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 14:02:56,404 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 14:02:56,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 14:02:56,405 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 14:02:56,405 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 14:02:56,406 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 14:02:56,406 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 14:02:56,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 14:02:56,406 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 14:02:56,407 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 14:02:56,407 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 14:02:56,407 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_42a95c06-852c-430f-b6c1-35bbd158c631/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42a95c06-852c-430f-b6c1-35bbd158c631/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7b8a2d8a35be535b4f8c573d98b12278b19043c6b0cec82927e2ac6d7dd36ebb [2022-11-21 14:02:56,666 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 14:02:56,697 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 14:02:56,700 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 14:02:56,701 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 14:02:56,703 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 14:02:56,704 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42a95c06-852c-430f-b6c1-35bbd158c631/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true.i [2022-11-21 14:02:59,787 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 14:03:00,042 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 14:03:00,043 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42a95c06-852c-430f-b6c1-35bbd158c631/sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true.i [2022-11-21 14:03:00,061 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42a95c06-852c-430f-b6c1-35bbd158c631/bin/uautomizer-vX5HgA9Q3a/data/3f81c337b/12728eaecd5a47e785d4aaf55ee66e65/FLAG1b85a3987 [2022-11-21 14:03:00,076 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42a95c06-852c-430f-b6c1-35bbd158c631/bin/uautomizer-vX5HgA9Q3a/data/3f81c337b/12728eaecd5a47e785d4aaf55ee66e65 [2022-11-21 14:03:00,079 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 14:03:00,081 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 14:03:00,082 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 14:03:00,082 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 14:03:00,086 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 14:03:00,087 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 02:03:00" (1/1) ... [2022-11-21 14:03:00,088 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16d0f9b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:03:00, skipping insertion in model container [2022-11-21 14:03:00,089 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 02:03:00" (1/1) ... [2022-11-21 14:03:00,096 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 14:03:00,132 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 14:03:00,290 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_42a95c06-852c-430f-b6c1-35bbd158c631/sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true.i[1107,1120] [2022-11-21 14:03:00,544 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 14:03:00,564 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 14:03:00,584 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_42a95c06-852c-430f-b6c1-35bbd158c631/sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true.i[1107,1120] [2022-11-21 14:03:00,629 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 14:03:00,674 INFO L208 MainTranslator]: Completed translation [2022-11-21 14:03:00,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:03:00 WrapperNode [2022-11-21 14:03:00,675 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 14:03:00,676 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 14:03:00,676 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 14:03:00,677 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 14:03:00,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:03:00" (1/1) ... [2022-11-21 14:03:00,698 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:03:00" (1/1) ... [2022-11-21 14:03:00,720 INFO L138 Inliner]: procedures = 163, calls = 38, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 113 [2022-11-21 14:03:00,720 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 14:03:00,721 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 14:03:00,721 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 14:03:00,721 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 14:03:00,730 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:03:00" (1/1) ... [2022-11-21 14:03:00,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:03:00" (1/1) ... [2022-11-21 14:03:00,733 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:03:00" (1/1) ... [2022-11-21 14:03:00,734 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:03:00" (1/1) ... [2022-11-21 14:03:00,739 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:03:00" (1/1) ... [2022-11-21 14:03:00,741 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:03:00" (1/1) ... [2022-11-21 14:03:00,743 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:03:00" (1/1) ... [2022-11-21 14:03:00,744 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:03:00" (1/1) ... [2022-11-21 14:03:00,747 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 14:03:00,748 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 14:03:00,748 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 14:03:00,748 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 14:03:00,749 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:03:00" (1/1) ... [2022-11-21 14:03:00,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 14:03:00,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42a95c06-852c-430f-b6c1-35bbd158c631/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 14:03:00,781 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42a95c06-852c-430f-b6c1-35bbd158c631/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 14:03:00,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42a95c06-852c-430f-b6c1-35bbd158c631/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 14:03:00,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 14:03:00,847 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-21 14:03:00,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 14:03:00,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 14:03:00,849 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-21 14:03:00,849 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-21 14:03:00,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 14:03:00,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 14:03:00,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 14:03:00,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 14:03:00,851 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 14:03:00,990 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 14:03:00,993 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 14:03:01,296 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 14:03:01,305 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 14:03:01,305 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 14:03:01,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 02:03:01 BoogieIcfgContainer [2022-11-21 14:03:01,307 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 14:03:01,310 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 14:03:01,310 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 14:03:01,314 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 14:03:01,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 02:03:00" (1/3) ... [2022-11-21 14:03:01,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64372540 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 02:03:01, skipping insertion in model container [2022-11-21 14:03:01,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:03:00" (2/3) ... [2022-11-21 14:03:01,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64372540 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 02:03:01, skipping insertion in model container [2022-11-21 14:03:01,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 02:03:01" (3/3) ... [2022-11-21 14:03:01,317 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_22-traces-write-centered-vs-meet-mutex_true.i [2022-11-21 14:03:01,327 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 14:03:01,336 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 14:03:01,336 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-21 14:03:01,336 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 14:03:01,412 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-21 14:03:01,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 133 places, 134 transitions, 273 flow [2022-11-21 14:03:01,561 INFO L130 PetriNetUnfolder]: 4/137 cut-off events. [2022-11-21 14:03:01,562 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 14:03:01,572 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 137 events. 4/137 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 101 event pairs, 0 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 87. Up to 2 conditions per place. [2022-11-21 14:03:01,585 INFO L82 GeneralOperation]: Start removeDead. Operand has 133 places, 134 transitions, 273 flow [2022-11-21 14:03:01,590 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 132 places, 132 transitions, 267 flow [2022-11-21 14:03:01,601 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 14:03:01,608 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;@6423a156, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 14:03:01,608 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-21 14:03:01,644 INFO L130 PetriNetUnfolder]: 0/62 cut-off events. [2022-11-21 14:03:01,644 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 14:03:01,645 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 14:03:01,646 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, 1] [2022-11-21 14:03:01,647 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-21 14:03:01,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 14:03:01,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1354117662, now seen corresponding path program 1 times [2022-11-21 14:03:01,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 14:03:01,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645344958] [2022-11-21 14:03:01,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:03:01,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 14:03:01,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:03:02,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 14:03:02,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 14:03:02,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645344958] [2022-11-21 14:03:02,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645344958] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 14:03:02,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 14:03:02,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 14:03:02,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614528419] [2022-11-21 14:03:02,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 14:03:02,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 14:03:02,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 14:03:02,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 14:03:02,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 14:03:02,146 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 134 [2022-11-21 14:03:02,150 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 132 transitions, 267 flow. Second operand has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 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) [2022-11-21 14:03:02,150 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 14:03:02,150 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 134 [2022-11-21 14:03:02,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 14:03:02,276 INFO L130 PetriNetUnfolder]: 1/125 cut-off events. [2022-11-21 14:03:02,276 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-21 14:03:02,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142 conditions, 125 events. 1/125 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 79 event pairs, 0 based on Foata normal form. 3/121 useless extension candidates. Maximal degree in co-relation 86. Up to 9 conditions per place. [2022-11-21 14:03:02,279 INFO L137 encePairwiseOnDemand]: 127/134 looper letters, 9 selfloop transitions, 3 changer transitions 0/125 dead transitions. [2022-11-21 14:03:02,279 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 125 transitions, 277 flow [2022-11-21 14:03:02,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 14:03:02,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-21 14:03:02,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 586 transitions. [2022-11-21 14:03:02,300 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8746268656716418 [2022-11-21 14:03:02,301 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 586 transitions. [2022-11-21 14:03:02,302 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 586 transitions. [2022-11-21 14:03:02,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 14:03:02,307 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 586 transitions. [2022-11-21 14:03:02,312 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 117.2) internal successors, (586), 5 states have internal predecessors, (586), 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) [2022-11-21 14:03:02,318 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 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) [2022-11-21 14:03:02,319 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 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) [2022-11-21 14:03:02,321 INFO L175 Difference]: Start difference. First operand has 132 places, 132 transitions, 267 flow. Second operand 5 states and 586 transitions. [2022-11-21 14:03:02,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 125 transitions, 277 flow [2022-11-21 14:03:02,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 125 transitions, 276 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 14:03:02,332 INFO L231 Difference]: Finished difference. Result has 131 places, 125 transitions, 258 flow [2022-11-21 14:03:02,334 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=258, PETRI_PLACES=131, PETRI_TRANSITIONS=125} [2022-11-21 14:03:02,338 INFO L288 CegarLoopForPetriNet]: 132 programPoint places, -1 predicate places. [2022-11-21 14:03:02,338 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 125 transitions, 258 flow [2022-11-21 14:03:02,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 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) [2022-11-21 14:03:02,339 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 14:03:02,340 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, 1, 1] [2022-11-21 14:03:02,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 14:03:02,340 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-21 14:03:02,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 14:03:02,342 INFO L85 PathProgramCache]: Analyzing trace with hash 972025753, now seen corresponding path program 1 times [2022-11-21 14:03:02,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 14:03:02,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241119297] [2022-11-21 14:03:02,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:03:02,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 14:03:02,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:03:02,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 14:03:02,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 14:03:02,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241119297] [2022-11-21 14:03:02,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241119297] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 14:03:02,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 14:03:02,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 14:03:02,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253802252] [2022-11-21 14:03:02,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 14:03:02,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 14:03:02,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 14:03:02,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 14:03:02,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 14:03:02,446 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 134 [2022-11-21 14:03:02,447 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 125 transitions, 258 flow. Second operand has 3 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 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) [2022-11-21 14:03:02,447 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 14:03:02,447 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 134 [2022-11-21 14:03:02,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 14:03:02,495 INFO L130 PetriNetUnfolder]: 1/124 cut-off events. [2022-11-21 14:03:02,495 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 14:03:02,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 124 events. 1/124 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 74 event pairs, 0 based on Foata normal form. 0/118 useless extension candidates. Maximal degree in co-relation 94. Up to 7 conditions per place. [2022-11-21 14:03:02,497 INFO L137 encePairwiseOnDemand]: 132/134 looper letters, 8 selfloop transitions, 1 changer transitions 17/124 dead transitions. [2022-11-21 14:03:02,497 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 124 transitions, 274 flow [2022-11-21 14:03:02,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 14:03:02,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 14:03:02,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 358 transitions. [2022-11-21 14:03:02,499 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8905472636815921 [2022-11-21 14:03:02,500 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 358 transitions. [2022-11-21 14:03:02,500 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 358 transitions. [2022-11-21 14:03:02,500 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 14:03:02,500 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 358 transitions. [2022-11-21 14:03:02,502 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 119.33333333333333) internal successors, (358), 3 states have internal predecessors, (358), 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) [2022-11-21 14:03:02,503 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 134.0) internal successors, (536), 4 states have internal predecessors, (536), 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) [2022-11-21 14:03:02,504 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 134.0) internal successors, (536), 4 states have internal predecessors, (536), 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) [2022-11-21 14:03:02,504 INFO L175 Difference]: Start difference. First operand has 131 places, 125 transitions, 258 flow. Second operand 3 states and 358 transitions. [2022-11-21 14:03:02,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 124 transitions, 274 flow [2022-11-21 14:03:02,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 124 transitions, 269 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-21 14:03:02,508 INFO L231 Difference]: Finished difference. Result has 129 places, 107 transitions, 219 flow [2022-11-21 14:03:02,508 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=219, PETRI_PLACES=129, PETRI_TRANSITIONS=107} [2022-11-21 14:03:02,509 INFO L288 CegarLoopForPetriNet]: 132 programPoint places, -3 predicate places. [2022-11-21 14:03:02,509 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 107 transitions, 219 flow [2022-11-21 14:03:02,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 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) [2022-11-21 14:03:02,510 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 14:03:02,510 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 14:03:02,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 14:03:02,511 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-21 14:03:02,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 14:03:02,511 INFO L85 PathProgramCache]: Analyzing trace with hash 164858241, now seen corresponding path program 1 times [2022-11-21 14:03:02,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 14:03:02,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529052936] [2022-11-21 14:03:02,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:03:02,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 14:03:02,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:03:02,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 14:03:02,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 14:03:02,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529052936] [2022-11-21 14:03:02,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529052936] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 14:03:02,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 14:03:02,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 14:03:02,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891697662] [2022-11-21 14:03:02,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 14:03:02,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 14:03:02,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 14:03:02,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 14:03:02,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 14:03:02,789 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 134 [2022-11-21 14:03:02,790 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 107 transitions, 219 flow. Second operand has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 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) [2022-11-21 14:03:02,790 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 14:03:02,790 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 134 [2022-11-21 14:03:02,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 14:03:02,921 INFO L130 PetriNetUnfolder]: 5/250 cut-off events. [2022-11-21 14:03:02,922 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 14:03:02,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 283 conditions, 250 events. 5/250 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 687 event pairs, 0 based on Foata normal form. 2/250 useless extension candidates. Maximal degree in co-relation 239. Up to 12 conditions per place. [2022-11-21 14:03:02,925 INFO L137 encePairwiseOnDemand]: 129/134 looper letters, 11 selfloop transitions, 2 changer transitions 8/117 dead transitions. [2022-11-21 14:03:02,925 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 117 transitions, 281 flow [2022-11-21 14:03:02,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 14:03:02,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-21 14:03:02,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 590 transitions. [2022-11-21 14:03:02,928 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8805970149253731 [2022-11-21 14:03:02,928 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 590 transitions. [2022-11-21 14:03:02,928 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 590 transitions. [2022-11-21 14:03:02,929 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 14:03:02,929 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 590 transitions. [2022-11-21 14:03:02,931 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 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) [2022-11-21 14:03:02,933 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 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) [2022-11-21 14:03:02,935 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 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) [2022-11-21 14:03:02,936 INFO L175 Difference]: Start difference. First operand has 129 places, 107 transitions, 219 flow. Second operand 5 states and 590 transitions. [2022-11-21 14:03:02,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 117 transitions, 281 flow [2022-11-21 14:03:02,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 117 transitions, 280 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 14:03:02,941 INFO L231 Difference]: Finished difference. Result has 119 places, 107 transitions, 234 flow [2022-11-21 14:03:02,942 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=234, PETRI_PLACES=119, PETRI_TRANSITIONS=107} [2022-11-21 14:03:02,943 INFO L288 CegarLoopForPetriNet]: 132 programPoint places, -13 predicate places. [2022-11-21 14:03:02,943 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 107 transitions, 234 flow [2022-11-21 14:03:02,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 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) [2022-11-21 14:03:02,944 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 14:03:02,945 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 14:03:02,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 14:03:02,946 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-21 14:03:02,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 14:03:02,947 INFO L85 PathProgramCache]: Analyzing trace with hash 377779523, now seen corresponding path program 1 times [2022-11-21 14:03:02,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 14:03:02,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806337318] [2022-11-21 14:03:02,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:03:02,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 14:03:03,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:03:03,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 14:03:03,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 14:03:03,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806337318] [2022-11-21 14:03:03,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806337318] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 14:03:03,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 14:03:03,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 14:03:03,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908914340] [2022-11-21 14:03:03,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 14:03:03,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 14:03:03,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 14:03:03,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 14:03:03,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-21 14:03:03,371 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 134 [2022-11-21 14:03:03,373 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 107 transitions, 234 flow. Second operand has 6 states, 6 states have (on average 104.16666666666667) internal successors, (625), 6 states have internal predecessors, (625), 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) [2022-11-21 14:03:03,373 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 14:03:03,374 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 134 [2022-11-21 14:03:03,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 14:03:03,552 INFO L130 PetriNetUnfolder]: 17/262 cut-off events. [2022-11-21 14:03:03,552 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2022-11-21 14:03:03,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 369 conditions, 262 events. 17/262 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 816 event pairs, 6 based on Foata normal form. 6/267 useless extension candidates. Maximal degree in co-relation 333. Up to 31 conditions per place. [2022-11-21 14:03:03,557 INFO L137 encePairwiseOnDemand]: 126/134 looper letters, 23 selfloop transitions, 8 changer transitions 1/114 dead transitions. [2022-11-21 14:03:03,558 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 114 transitions, 312 flow [2022-11-21 14:03:03,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 14:03:03,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-21 14:03:03,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 540 transitions. [2022-11-21 14:03:03,560 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8059701492537313 [2022-11-21 14:03:03,561 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 540 transitions. [2022-11-21 14:03:03,561 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 540 transitions. [2022-11-21 14:03:03,562 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 14:03:03,562 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 540 transitions. [2022-11-21 14:03:03,563 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 108.0) internal successors, (540), 5 states have internal predecessors, (540), 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) [2022-11-21 14:03:03,566 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 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) [2022-11-21 14:03:03,567 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 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) [2022-11-21 14:03:03,570 INFO L175 Difference]: Start difference. First operand has 119 places, 107 transitions, 234 flow. Second operand 5 states and 540 transitions. [2022-11-21 14:03:03,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 114 transitions, 312 flow [2022-11-21 14:03:03,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 114 transitions, 300 flow, removed 4 selfloop flow, removed 4 redundant places. [2022-11-21 14:03:03,578 INFO L231 Difference]: Finished difference. Result has 118 places, 108 transitions, 248 flow [2022-11-21 14:03:03,578 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=248, PETRI_PLACES=118, PETRI_TRANSITIONS=108} [2022-11-21 14:03:03,580 INFO L288 CegarLoopForPetriNet]: 132 programPoint places, -14 predicate places. [2022-11-21 14:03:03,581 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 108 transitions, 248 flow [2022-11-21 14:03:03,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 104.16666666666667) internal successors, (625), 6 states have internal predecessors, (625), 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) [2022-11-21 14:03:03,582 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 14:03:03,586 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 14:03:03,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 14:03:03,589 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-21 14:03:03,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 14:03:03,591 INFO L85 PathProgramCache]: Analyzing trace with hash -610222729, now seen corresponding path program 1 times [2022-11-21 14:03:03,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 14:03:03,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926030480] [2022-11-21 14:03:03,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:03:03,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 14:03:03,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:03:03,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 14:03:03,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 14:03:03,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926030480] [2022-11-21 14:03:03,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926030480] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 14:03:03,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 14:03:03,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 14:03:03,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667555312] [2022-11-21 14:03:03,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 14:03:03,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 14:03:03,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 14:03:03,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 14:03:03,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-21 14:03:03,928 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 134 [2022-11-21 14:03:03,929 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 108 transitions, 248 flow. Second operand has 6 states, 6 states have (on average 104.33333333333333) internal successors, (626), 6 states have internal predecessors, (626), 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) [2022-11-21 14:03:03,930 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 14:03:03,930 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 134 [2022-11-21 14:03:03,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 14:03:04,048 INFO L130 PetriNetUnfolder]: 15/236 cut-off events. [2022-11-21 14:03:04,049 INFO L131 PetriNetUnfolder]: For 29/29 co-relation queries the response was YES. [2022-11-21 14:03:04,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 342 conditions, 236 events. 15/236 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 651 event pairs, 6 based on Foata normal form. 2/233 useless extension candidates. Maximal degree in co-relation 283. Up to 32 conditions per place. [2022-11-21 14:03:04,050 INFO L137 encePairwiseOnDemand]: 127/134 looper letters, 24 selfloop transitions, 7 changer transitions 0/113 dead transitions. [2022-11-21 14:03:04,050 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 113 transitions, 326 flow [2022-11-21 14:03:04,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 14:03:04,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-21 14:03:04,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 536 transitions. [2022-11-21 14:03:04,053 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8 [2022-11-21 14:03:04,053 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 536 transitions. [2022-11-21 14:03:04,053 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 536 transitions. [2022-11-21 14:03:04,054 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 14:03:04,054 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 536 transitions. [2022-11-21 14:03:04,055 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 107.2) internal successors, (536), 5 states have internal predecessors, (536), 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) [2022-11-21 14:03:04,057 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 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) [2022-11-21 14:03:04,057 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 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) [2022-11-21 14:03:04,058 INFO L175 Difference]: Start difference. First operand has 118 places, 108 transitions, 248 flow. Second operand 5 states and 536 transitions. [2022-11-21 14:03:04,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 113 transitions, 326 flow [2022-11-21 14:03:04,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 113 transitions, 323 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 14:03:04,062 INFO L231 Difference]: Finished difference. Result has 121 places, 110 transitions, 275 flow [2022-11-21 14:03:04,062 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=245, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=275, PETRI_PLACES=121, PETRI_TRANSITIONS=110} [2022-11-21 14:03:04,064 INFO L288 CegarLoopForPetriNet]: 132 programPoint places, -11 predicate places. [2022-11-21 14:03:04,065 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 110 transitions, 275 flow [2022-11-21 14:03:04,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 104.33333333333333) internal successors, (626), 6 states have internal predecessors, (626), 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) [2022-11-21 14:03:04,065 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 14:03:04,066 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 14:03:04,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 14:03:04,066 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-21 14:03:04,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 14:03:04,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1610125980, now seen corresponding path program 1 times [2022-11-21 14:03:04,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 14:03:04,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186457516] [2022-11-21 14:03:04,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:03:04,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 14:03:04,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 14:03:04,125 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 14:03:04,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 14:03:04,198 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 14:03:04,198 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 14:03:04,200 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2022-11-21 14:03:04,202 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2022-11-21 14:03:04,202 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 7 remaining) [2022-11-21 14:03:04,202 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2022-11-21 14:03:04,203 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2022-11-21 14:03:04,203 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2022-11-21 14:03:04,203 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2022-11-21 14:03:04,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 14:03:04,204 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-21 14:03:04,211 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-21 14:03:04,212 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 14:03:04,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 02:03:04 BasicIcfg [2022-11-21 14:03:04,309 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 14:03:04,310 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 14:03:04,310 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 14:03:04,310 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 14:03:04,311 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 02:03:01" (3/4) ... [2022-11-21 14:03:04,313 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-21 14:03:04,372 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42a95c06-852c-430f-b6c1-35bbd158c631/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 14:03:04,373 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 14:03:04,373 INFO L158 Benchmark]: Toolchain (without parser) took 4292.75ms. Allocated memory was 159.4MB in the beginning and 201.3MB in the end (delta: 41.9MB). Free memory was 119.2MB in the beginning and 52.5MB in the end (delta: 66.7MB). Peak memory consumption was 109.6MB. Max. memory is 16.1GB. [2022-11-21 14:03:04,374 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 159.4MB. Free memory is still 105.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 14:03:04,374 INFO L158 Benchmark]: CACSL2BoogieTranslator took 593.41ms. Allocated memory is still 159.4MB. Free memory was 118.8MB in the beginning and 99.4MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-21 14:03:04,374 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.01ms. Allocated memory is still 159.4MB. Free memory was 99.4MB in the beginning and 97.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 14:03:04,375 INFO L158 Benchmark]: Boogie Preprocessor took 26.52ms. Allocated memory is still 159.4MB. Free memory was 97.1MB in the beginning and 95.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 14:03:04,375 INFO L158 Benchmark]: RCFGBuilder took 559.63ms. Allocated memory is still 159.4MB. Free memory was 95.7MB in the beginning and 79.9MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-21 14:03:04,376 INFO L158 Benchmark]: TraceAbstraction took 2999.18ms. Allocated memory was 159.4MB in the beginning and 201.3MB in the end (delta: 41.9MB). Free memory was 79.4MB in the beginning and 64.1MB in the end (delta: 15.4MB). Peak memory consumption was 59.3MB. Max. memory is 16.1GB. [2022-11-21 14:03:04,376 INFO L158 Benchmark]: Witness Printer took 63.16ms. Allocated memory is still 201.3MB. Free memory was 64.1MB in the beginning and 52.5MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-21 14:03:04,378 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 159.4MB. Free memory is still 105.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 593.41ms. Allocated memory is still 159.4MB. Free memory was 118.8MB in the beginning and 99.4MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.01ms. Allocated memory is still 159.4MB. Free memory was 99.4MB in the beginning and 97.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.52ms. Allocated memory is still 159.4MB. Free memory was 97.1MB in the beginning and 95.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 559.63ms. Allocated memory is still 159.4MB. Free memory was 95.7MB in the beginning and 79.9MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2999.18ms. Allocated memory was 159.4MB in the beginning and 201.3MB in the end (delta: 41.9MB). Free memory was 79.4MB in the beginning and 64.1MB in the end (delta: 15.4MB). Peak memory consumption was 59.3MB. Max. memory is 16.1GB. * Witness Printer took 63.16ms. Allocated memory is still 201.3MB. Free memory was 64.1MB in the beginning and 52.5MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 701]: integer overflow possible integer overflow possible We found a FailurePath: [L682] 0 int g = 0; VAL [g=0] [L683] 0 int h = 0; VAL [g=0, h=0] [L684] 0 int i = 0; VAL [g=0, h=0, i=0] [L685] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [A={3:0}, g=0, h=0, i=0] [L686] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [A={3:0}, B={4:0}, g=0, h=0, i=0] [L687] 0 pthread_mutex_t C = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [A={3:0}, B={4:0}, C={5:0}, g=0, h=0, i=0] [L710] 0 int x = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=2147483617, A={3:0}, B={4:0}, C={5:0}, g=0, h=0, i=0, x=2147483617] [L711] COND TRUE 0 x > -1000 VAL [A={3:0}, B={4:0}, C={5:0}, g=0, h=0, i=0, x=2147483617] [L712] 0 pthread_t id; VAL [A={3:0}, B={4:0}, C={5:0}, g=0, h=0, i=0, id={6:0}, x=2147483617] [L713] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, B={4:0}, C={5:0}, g=0, h=0, i=0, id={6:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, x=2147483617] [L689] 1 int x = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=0, A={3:0}, arg={0:0}, arg={0:0}, B={4:0}, C={5:0}, g=0, h=0, i=0, x=0] [L690] 1 int y = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=0, A={3:0}, arg={0:0}, arg={0:0}, B={4:0}, C={5:0}, g=0, h=0, i=0, x=0, y=0] [L691] 1 int z = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=0, A={3:0}, arg={0:0}, arg={0:0}, B={4:0}, C={5:0}, g=0, h=0, i=0, x=0, y=0, z=0] [L692] COND TRUE 1 x < 1000 VAL [A={3:0}, arg={0:0}, arg={0:0}, B={4:0}, C={5:0}, g=0, h=0, i=0, x=0, y=0, z=0] [L716] 0 i = 11 VAL [A={3:0}, B={4:0}, C={5:0}, g=0, h=0, i=11, id={6:0}, x=2147483617] [L717] 0 g = x VAL [A={3:0}, B={4:0}, C={5:0}, g=2147483617, h=0, i=11, id={6:0}, x=2147483617] [L718] EXPR 0 x - 17 VAL [A={3:0}, B={4:0}, C={5:0}, g=2147483617, h=0, i=11, id={6:0}, x=2147483617] [L718] 0 h = x - 17 VAL [A={3:0}, B={4:0}, C={5:0}, g=2147483617, h=2147483600, i=11, id={6:0}, x=2147483617] [L721] 0 h = x VAL [A={3:0}, B={4:0}, C={5:0}, g=2147483617, h=2147483617, i=11, id={6:0}, x=2147483617] [L695] 1 x = g VAL [A={3:0}, arg={0:0}, arg={0:0}, B={4:0}, C={5:0}, g=2147483617, h=2147483617, i=11, x=2147483617, y=0, z=0] [L696] 1 y = h VAL [A={3:0}, arg={0:0}, arg={0:0}, B={4:0}, C={5:0}, g=2147483617, h=2147483617, i=11, x=2147483617, y=2147483617, z=0] [L697] CALL 1 __VERIFIER_assert(y <= x) [L19] COND FALSE 1 !(!(cond)) VAL [\old(cond)=1, A={3:0}, B={4:0}, C={5:0}, cond=1, g=2147483617, h=2147483617, i=11] [L697] RET 1 __VERIFIER_assert(y <= x) [L699] CALL 1 __VERIFIER_assert(x == y) [L19] COND FALSE 1 !(!(cond)) VAL [\old(cond)=1, A={3:0}, B={4:0}, C={5:0}, cond=1, g=2147483617, h=2147483617, i=11] [L699] RET 1 __VERIFIER_assert(x == y) [L701] 1 x + 31 VAL [A={3:0}, arg={0:0}, arg={0:0}, B={4:0}, C={5:0}, g=2147483617, h=2147483617, i=11, x=2147483617, y=2147483617, z=0] - UnprovableResult [Line: 718]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 718]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 713]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 701]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 186 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: 2.8s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 78 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 78 mSDsluCounter, 32 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 187 IncrementalHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 23 mSDtfsCounter, 187 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=275occurred in iteration=5, InterpolantAutomatonStates: 23, 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, 1.2s InterpolantComputationTime, 458 NumberOfCodeBlocks, 458 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 358 ConstructedInterpolants, 0 QuantifiedInterpolants, 1090 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-21 14:03:04,401 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42a95c06-852c-430f-b6c1-35bbd158c631/bin/uautomizer-vX5HgA9Q3a/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)