./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b 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_18df83eb-593b-437b-ac7d-58777d2e163c/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18df83eb-593b-437b-ac7d-58777d2e163c/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18df83eb-593b-437b-ac7d-58777d2e163c/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18df83eb-593b-437b-ac7d-58777d2e163c/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18df83eb-593b-437b-ac7d-58777d2e163c/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18df83eb-593b-437b-ac7d-58777d2e163c/bin/uautomizer-TMbwUNV5ro --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 7b88fee59ad03447f68c116aa52c40e006cc633d8116aa4d446048afd18fa64f --- 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-8393723 [2022-11-18 18:39:52,475 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:39:52,477 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:39:52,508 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:39:52,509 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:39:52,510 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:39:52,515 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:39:52,523 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:39:52,526 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:39:52,532 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:39:52,534 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:39:52,536 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:39:52,536 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:39:52,539 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:39:52,542 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:39:52,544 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:39:52,546 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:39:52,547 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:39:52,549 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:39:52,557 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:39:52,558 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:39:52,559 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:39:52,563 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:39:52,564 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:39:52,572 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:39:52,573 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:39:52,573 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:39:52,574 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:39:52,574 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:39:52,575 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:39:52,575 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:39:52,576 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:39:52,577 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:39:52,578 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:39:52,578 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:39:52,579 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:39:52,582 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:39:52,583 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:39:52,583 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:39:52,584 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:39:52,584 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:39:52,585 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18df83eb-593b-437b-ac7d-58777d2e163c/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-18 18:39:52,627 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:39:52,627 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:39:52,627 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:39:52,628 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:39:52,628 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:39:52,629 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:39:52,629 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:39:52,629 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:39:52,630 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:39:52,630 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:39:52,631 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 18:39:52,631 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 18:39:52,631 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 18:39:52,631 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 18:39:52,632 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:39:52,632 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 18:39:52,632 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:39:52,632 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 18:39:52,632 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 18:39:52,632 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 18:39:52,633 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:39:52,633 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:39:52,633 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 18:39:52,633 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:39:52,633 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:39:52,634 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:39:52,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:39:52,635 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:39:52,636 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:39:52,636 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 18:39:52,636 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 18:39:52,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 18:39:52,636 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 18:39:52,637 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 18:39:52,637 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 18:39:52,637 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_18df83eb-593b-437b-ac7d-58777d2e163c/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18df83eb-593b-437b-ac7d-58777d2e163c/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7b88fee59ad03447f68c116aa52c40e006cc633d8116aa4d446048afd18fa64f [2022-11-18 18:39:52,932 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:39:52,961 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:39:52,963 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:39:52,965 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:39:52,968 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:39:52,969 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18df83eb-593b-437b-ac7d-58777d2e163c/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i [2022-11-18 18:39:53,040 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18df83eb-593b-437b-ac7d-58777d2e163c/bin/uautomizer-TMbwUNV5ro/data/602d3f55d/351dc9aff55447679077efcbc94edc8d/FLAGe43cf5a17 [2022-11-18 18:39:53,757 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:39:53,767 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18df83eb-593b-437b-ac7d-58777d2e163c/sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i [2022-11-18 18:39:53,780 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18df83eb-593b-437b-ac7d-58777d2e163c/bin/uautomizer-TMbwUNV5ro/data/602d3f55d/351dc9aff55447679077efcbc94edc8d/FLAGe43cf5a17 [2022-11-18 18:39:54,000 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18df83eb-593b-437b-ac7d-58777d2e163c/bin/uautomizer-TMbwUNV5ro/data/602d3f55d/351dc9aff55447679077efcbc94edc8d [2022-11-18 18:39:54,006 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:39:54,007 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:39:54,009 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:39:54,009 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:39:54,013 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:39:54,014 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:39:54" (1/1) ... [2022-11-18 18:39:54,015 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14ab33bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:54, skipping insertion in model container [2022-11-18 18:39:54,015 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:39:54" (1/1) ... [2022-11-18 18:39:54,023 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:39:54,057 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:39:54,514 WARN L234 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_18df83eb-593b-437b-ac7d-58777d2e163c/sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i[30176,30189] [2022-11-18 18:39:54,552 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:39:54,569 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:39:54,613 WARN L234 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_18df83eb-593b-437b-ac7d-58777d2e163c/sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i[30176,30189] [2022-11-18 18:39:54,648 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:39:54,693 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:39:54,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:54 WrapperNode [2022-11-18 18:39:54,694 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:39:54,695 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:39:54,695 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:39:54,696 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:39:54,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:54" (1/1) ... [2022-11-18 18:39:54,736 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:54" (1/1) ... [2022-11-18 18:39:54,784 INFO L138 Inliner]: procedures = 172, calls = 50, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 232 [2022-11-18 18:39:54,785 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:39:54,785 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:39:54,785 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:39:54,785 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:39:54,796 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:54" (1/1) ... [2022-11-18 18:39:54,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:54" (1/1) ... [2022-11-18 18:39:54,811 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:54" (1/1) ... [2022-11-18 18:39:54,812 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:54" (1/1) ... [2022-11-18 18:39:54,818 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:54" (1/1) ... [2022-11-18 18:39:54,838 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:54" (1/1) ... [2022-11-18 18:39:54,840 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:54" (1/1) ... [2022-11-18 18:39:54,841 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:54" (1/1) ... [2022-11-18 18:39:54,844 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:39:54,853 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:39:54,854 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:39:54,854 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:39:54,856 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:54" (1/1) ... [2022-11-18 18:39:54,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:39:54,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18df83eb-593b-437b-ac7d-58777d2e163c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:39:54,889 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18df83eb-593b-437b-ac7d-58777d2e163c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 18:39:54,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18df83eb-593b-437b-ac7d-58777d2e163c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 18:39:54,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 18:39:54,937 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-11-18 18:39:54,938 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-11-18 18:39:54,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 18:39:54,938 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 18:39:54,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 18:39:54,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 18:39:54,939 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2022-11-18 18:39:54,940 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2022-11-18 18:39:54,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 18:39:54,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 18:39:54,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:39:54,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:39:54,942 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 18:39:55,112 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:39:55,114 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:39:55,605 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:39:55,616 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:39:55,616 INFO L300 CfgBuilder]: Removed 24 assume(true) statements. [2022-11-18 18:39:55,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:39:55 BoogieIcfgContainer [2022-11-18 18:39:55,621 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:39:55,637 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 18:39:55,638 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 18:39:55,641 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 18:39:55,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:39:54" (1/3) ... [2022-11-18 18:39:55,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2508c28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:39:55, skipping insertion in model container [2022-11-18 18:39:55,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:54" (2/3) ... [2022-11-18 18:39:55,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2508c28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:39:55, skipping insertion in model container [2022-11-18 18:39:55,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:39:55" (3/3) ... [2022-11-18 18:39:55,645 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_09-ptrmunge_racing.i [2022-11-18 18:39:55,655 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 18:39:55,666 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 18:39:55,667 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-11-18 18:39:55,667 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 18:39:55,799 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-18 18:39:55,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 228 places, 255 transitions, 532 flow [2022-11-18 18:39:56,062 INFO L130 PetriNetUnfolder]: 58/453 cut-off events. [2022-11-18 18:39:56,062 INFO L131 PetriNetUnfolder]: For 8/12 co-relation queries the response was YES. [2022-11-18 18:39:56,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 473 conditions, 453 events. 58/453 cut-off events. For 8/12 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2026 event pairs, 0 based on Foata normal form. 0/359 useless extension candidates. Maximal degree in co-relation 241. Up to 8 conditions per place. [2022-11-18 18:39:56,078 INFO L82 GeneralOperation]: Start removeDead. Operand has 228 places, 255 transitions, 532 flow [2022-11-18 18:39:56,094 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 228 places, 255 transitions, 532 flow [2022-11-18 18:39:56,114 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:39:56,125 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;@25b03079, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:39:56,126 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2022-11-18 18:39:56,147 INFO L130 PetriNetUnfolder]: 4/71 cut-off events. [2022-11-18 18:39:56,147 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 18:39:56,147 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:39:56,148 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] [2022-11-18 18:39:56,149 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-11-18 18:39:56,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:39:56,159 INFO L85 PathProgramCache]: Analyzing trace with hash -402872925, now seen corresponding path program 1 times [2022-11-18 18:39:56,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:39:56,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415132572] [2022-11-18 18:39:56,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:39:56,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:39:56,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:56,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:39:56,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:39:56,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415132572] [2022-11-18 18:39:56,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415132572] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:39:56,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:39:56,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:39:56,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358792212] [2022-11-18 18:39:56,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:39:56,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:39:56,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:39:56,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:39:56,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:39:56,702 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 255 [2022-11-18 18:39:56,707 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 255 transitions, 532 flow. Second operand has 4 states, 4 states have (on average 210.75) internal successors, (843), 4 states have internal predecessors, (843), 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) [2022-11-18 18:39:56,707 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:39:56,707 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 255 [2022-11-18 18:39:56,708 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:39:56,928 INFO L130 PetriNetUnfolder]: 8/316 cut-off events. [2022-11-18 18:39:56,928 INFO L131 PetriNetUnfolder]: For 37/88 co-relation queries the response was YES. [2022-11-18 18:39:56,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 356 conditions, 316 events. 8/316 cut-off events. For 37/88 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1071 event pairs, 0 based on Foata normal form. 120/397 useless extension candidates. Maximal degree in co-relation 219. Up to 15 conditions per place. [2022-11-18 18:39:56,933 INFO L137 encePairwiseOnDemand]: 222/255 looper letters, 14 selfloop transitions, 4 changer transitions 0/227 dead transitions. [2022-11-18 18:39:56,934 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 227 transitions, 512 flow [2022-11-18 18:39:56,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:39:56,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 18:39:56,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1126 transitions. [2022-11-18 18:39:56,955 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8831372549019608 [2022-11-18 18:39:56,956 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1126 transitions. [2022-11-18 18:39:56,957 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1126 transitions. [2022-11-18 18:39:56,960 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:39:56,963 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1126 transitions. [2022-11-18 18:39:56,969 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 225.2) internal successors, (1126), 5 states have internal predecessors, (1126), 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) [2022-11-18 18:39:56,981 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 255.0) internal successors, (1530), 6 states have internal predecessors, (1530), 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) [2022-11-18 18:39:56,983 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 255.0) internal successors, (1530), 6 states have internal predecessors, (1530), 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) [2022-11-18 18:39:56,985 INFO L175 Difference]: Start difference. First operand has 228 places, 255 transitions, 532 flow. Second operand 5 states and 1126 transitions. [2022-11-18 18:39:56,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 227 transitions, 512 flow [2022-11-18 18:39:56,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 227 transitions, 512 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 18:39:56,998 INFO L231 Difference]: Finished difference. Result has 229 places, 225 transitions, 484 flow [2022-11-18 18:39:57,000 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=472, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=221, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=484, PETRI_PLACES=229, PETRI_TRANSITIONS=225} [2022-11-18 18:39:57,004 INFO L288 CegarLoopForPetriNet]: 228 programPoint places, 1 predicate places. [2022-11-18 18:39:57,004 INFO L495 AbstractCegarLoop]: Abstraction has has 229 places, 225 transitions, 484 flow [2022-11-18 18:39:57,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 210.75) internal successors, (843), 4 states have internal predecessors, (843), 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) [2022-11-18 18:39:57,008 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:39:57,009 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:39:57,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 18:39:57,010 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-11-18 18:39:57,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:39:57,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1237452701, now seen corresponding path program 1 times [2022-11-18 18:39:57,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:39:57,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078000732] [2022-11-18 18:39:57,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:39:57,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:39:57,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:39:57,082 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:39:57,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:39:57,163 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:39:57,164 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 18:39:57,167 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 26 remaining) [2022-11-18 18:39:57,170 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 26 remaining) [2022-11-18 18:39:57,173 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 26 remaining) [2022-11-18 18:39:57,173 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 26 remaining) [2022-11-18 18:39:57,174 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 26 remaining) [2022-11-18 18:39:57,174 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 26 remaining) [2022-11-18 18:39:57,174 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 26 remaining) [2022-11-18 18:39:57,175 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 26 remaining) [2022-11-18 18:39:57,176 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 26 remaining) [2022-11-18 18:39:57,178 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 26 remaining) [2022-11-18 18:39:57,178 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 26 remaining) [2022-11-18 18:39:57,183 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 26 remaining) [2022-11-18 18:39:57,184 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 26 remaining) [2022-11-18 18:39:57,185 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 26 remaining) [2022-11-18 18:39:57,185 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 26 remaining) [2022-11-18 18:39:57,186 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 26 remaining) [2022-11-18 18:39:57,186 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 26 remaining) [2022-11-18 18:39:57,186 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 26 remaining) [2022-11-18 18:39:57,187 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 26 remaining) [2022-11-18 18:39:57,187 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 26 remaining) [2022-11-18 18:39:57,187 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 26 remaining) [2022-11-18 18:39:57,187 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 26 remaining) [2022-11-18 18:39:57,188 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 26 remaining) [2022-11-18 18:39:57,188 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 26 remaining) [2022-11-18 18:39:57,189 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 26 remaining) [2022-11-18 18:39:57,195 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 26 remaining) [2022-11-18 18:39:57,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 18:39:57,196 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-18 18:39:57,199 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 18:39:57,199 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-18 18:39:57,292 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2022-11-18 18:39:57,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 352 places, 403 transitions, 854 flow [2022-11-18 18:39:57,712 INFO L130 PetriNetUnfolder]: 197/1354 cut-off events. [2022-11-18 18:39:57,712 INFO L131 PetriNetUnfolder]: For 72/78 co-relation queries the response was YES. [2022-11-18 18:39:57,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1451 conditions, 1354 events. 197/1354 cut-off events. For 72/78 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 8642 event pairs, 1 based on Foata normal form. 0/1062 useless extension candidates. Maximal degree in co-relation 820. Up to 32 conditions per place. [2022-11-18 18:39:57,732 INFO L82 GeneralOperation]: Start removeDead. Operand has 352 places, 403 transitions, 854 flow [2022-11-18 18:39:57,760 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 352 places, 403 transitions, 854 flow [2022-11-18 18:39:57,762 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:39:57,763 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;@25b03079, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:39:57,764 INFO L358 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2022-11-18 18:39:57,774 INFO L130 PetriNetUnfolder]: 4/71 cut-off events. [2022-11-18 18:39:57,774 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 18:39:57,775 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:39:57,775 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] [2022-11-18 18:39:57,775 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-11-18 18:39:57,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:39:57,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1806181966, now seen corresponding path program 1 times [2022-11-18 18:39:57,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:39:57,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461481415] [2022-11-18 18:39:57,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:39:57,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:39:57,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:57,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:39:57,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:39:57,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461481415] [2022-11-18 18:39:57,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461481415] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:39:57,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:39:57,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:39:57,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333656761] [2022-11-18 18:39:57,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:39:57,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:39:57,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:39:57,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:39:57,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:39:57,900 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 327 out of 403 [2022-11-18 18:39:57,902 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 352 places, 403 transitions, 854 flow. Second operand has 4 states, 4 states have (on average 328.75) internal successors, (1315), 4 states have internal predecessors, (1315), 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) [2022-11-18 18:39:57,902 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:39:57,902 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 327 of 403 [2022-11-18 18:39:57,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:39:58,382 INFO L130 PetriNetUnfolder]: 60/1052 cut-off events. [2022-11-18 18:39:58,384 INFO L131 PetriNetUnfolder]: For 270/592 co-relation queries the response was YES. [2022-11-18 18:39:58,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1235 conditions, 1052 events. 60/1052 cut-off events. For 270/592 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 6574 event pairs, 2 based on Foata normal form. 861/1757 useless extension candidates. Maximal degree in co-relation 751. Up to 85 conditions per place. [2022-11-18 18:39:58,415 INFO L137 encePairwiseOnDemand]: 348/403 looper letters, 27 selfloop transitions, 4 changer transitions 0/358 dead transitions. [2022-11-18 18:39:58,415 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 352 places, 358 transitions, 826 flow [2022-11-18 18:39:58,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:39:58,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 18:39:58,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1751 transitions. [2022-11-18 18:39:58,421 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8689826302729529 [2022-11-18 18:39:58,421 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1751 transitions. [2022-11-18 18:39:58,421 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1751 transitions. [2022-11-18 18:39:58,422 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:39:58,422 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1751 transitions. [2022-11-18 18:39:58,426 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 350.2) internal successors, (1751), 5 states have internal predecessors, (1751), 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) [2022-11-18 18:39:58,431 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 403.0) internal successors, (2418), 6 states have internal predecessors, (2418), 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) [2022-11-18 18:39:58,433 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 403.0) internal successors, (2418), 6 states have internal predecessors, (2418), 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) [2022-11-18 18:39:58,433 INFO L175 Difference]: Start difference. First operand has 352 places, 403 transitions, 854 flow. Second operand 5 states and 1751 transitions. [2022-11-18 18:39:58,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 352 places, 358 transitions, 826 flow [2022-11-18 18:39:58,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 352 places, 358 transitions, 826 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 18:39:58,448 INFO L231 Difference]: Finished difference. Result has 355 places, 354 transitions, 782 flow [2022-11-18 18:39:58,449 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=403, PETRI_DIFFERENCE_MINUEND_FLOW=750, PETRI_DIFFERENCE_MINUEND_PLACES=348, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=351, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=347, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=782, PETRI_PLACES=355, PETRI_TRANSITIONS=354} [2022-11-18 18:39:58,450 INFO L288 CegarLoopForPetriNet]: 352 programPoint places, 3 predicate places. [2022-11-18 18:39:58,450 INFO L495 AbstractCegarLoop]: Abstraction has has 355 places, 354 transitions, 782 flow [2022-11-18 18:39:58,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 328.75) internal successors, (1315), 4 states have internal predecessors, (1315), 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) [2022-11-18 18:39:58,452 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:39:58,452 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:39:58,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 18:39:58,453 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-11-18 18:39:58,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:39:58,453 INFO L85 PathProgramCache]: Analyzing trace with hash 481760480, now seen corresponding path program 1 times [2022-11-18 18:39:58,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:39:58,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444386630] [2022-11-18 18:39:58,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:39:58,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:39:58,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:58,602 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 18:39:58,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:39:58,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444386630] [2022-11-18 18:39:58,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444386630] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:39:58,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:39:58,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:39:58,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338892031] [2022-11-18 18:39:58,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:39:58,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:39:58,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:39:58,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:39:58,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:39:58,614 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 327 out of 403 [2022-11-18 18:39:58,624 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 355 places, 354 transitions, 782 flow. Second operand has 4 states, 4 states have (on average 330.75) internal successors, (1323), 4 states have internal predecessors, (1323), 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) [2022-11-18 18:39:58,624 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:39:58,624 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 327 of 403 [2022-11-18 18:39:58,624 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:39:59,011 INFO L130 PetriNetUnfolder]: 60/1051 cut-off events. [2022-11-18 18:39:59,011 INFO L131 PetriNetUnfolder]: For 275/582 co-relation queries the response was YES. [2022-11-18 18:39:59,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1250 conditions, 1051 events. 60/1051 cut-off events. For 275/582 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 6585 event pairs, 2 based on Foata normal form. 13/912 useless extension candidates. Maximal degree in co-relation 1170. Up to 74 conditions per place. [2022-11-18 18:39:59,043 INFO L137 encePairwiseOnDemand]: 397/403 looper letters, 19 selfloop transitions, 8 changer transitions 0/354 dead transitions. [2022-11-18 18:39:59,043 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 358 places, 354 transitions, 834 flow [2022-11-18 18:39:59,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:39:59,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 18:39:59,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1660 transitions. [2022-11-18 18:39:59,052 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8238213399503722 [2022-11-18 18:39:59,052 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1660 transitions. [2022-11-18 18:39:59,052 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1660 transitions. [2022-11-18 18:39:59,053 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:39:59,054 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1660 transitions. [2022-11-18 18:39:59,058 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 332.0) internal successors, (1660), 5 states have internal predecessors, (1660), 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) [2022-11-18 18:39:59,062 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 403.0) internal successors, (2418), 6 states have internal predecessors, (2418), 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) [2022-11-18 18:39:59,063 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 403.0) internal successors, (2418), 6 states have internal predecessors, (2418), 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) [2022-11-18 18:39:59,064 INFO L175 Difference]: Start difference. First operand has 355 places, 354 transitions, 782 flow. Second operand 5 states and 1660 transitions. [2022-11-18 18:39:59,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 358 places, 354 transitions, 834 flow [2022-11-18 18:39:59,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 354 transitions, 832 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 18:39:59,076 INFO L231 Difference]: Finished difference. Result has 358 places, 354 transitions, 800 flow [2022-11-18 18:39:59,077 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=403, PETRI_DIFFERENCE_MINUEND_FLOW=776, PETRI_DIFFERENCE_MINUEND_PLACES=353, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=353, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=345, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=800, PETRI_PLACES=358, PETRI_TRANSITIONS=354} [2022-11-18 18:39:59,080 INFO L288 CegarLoopForPetriNet]: 352 programPoint places, 6 predicate places. [2022-11-18 18:39:59,080 INFO L495 AbstractCegarLoop]: Abstraction has has 358 places, 354 transitions, 800 flow [2022-11-18 18:39:59,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 330.75) internal successors, (1323), 4 states have internal predecessors, (1323), 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) [2022-11-18 18:39:59,081 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:39:59,081 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:39:59,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 18:39:59,082 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-11-18 18:39:59,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:39:59,082 INFO L85 PathProgramCache]: Analyzing trace with hash 2049673883, now seen corresponding path program 1 times [2022-11-18 18:39:59,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:39:59,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029951610] [2022-11-18 18:39:59,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:39:59,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:39:59,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:59,308 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:39:59,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:39:59,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029951610] [2022-11-18 18:39:59,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029951610] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:39:59,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1872864327] [2022-11-18 18:39:59,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:39:59,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:39:59,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18df83eb-593b-437b-ac7d-58777d2e163c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:39:59,318 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18df83eb-593b-437b-ac7d-58777d2e163c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:39:59,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18df83eb-593b-437b-ac7d-58777d2e163c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 18:39:59,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:59,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 18:39:59,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:39:59,565 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:39:59,566 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:39:59,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1872864327] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:39:59,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 18:39:59,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-18 18:39:59,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081119101] [2022-11-18 18:39:59,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:39:59,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:39:59,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:39:59,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:39:59,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-18 18:39:59,571 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 327 out of 403 [2022-11-18 18:39:59,574 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 358 places, 354 transitions, 800 flow. Second operand has 6 states, 6 states have (on average 329.6666666666667) internal successors, (1978), 6 states have internal predecessors, (1978), 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) [2022-11-18 18:39:59,575 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:39:59,575 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 327 of 403 [2022-11-18 18:39:59,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:40:00,099 INFO L130 PetriNetUnfolder]: 60/1050 cut-off events. [2022-11-18 18:40:00,099 INFO L131 PetriNetUnfolder]: For 281/573 co-relation queries the response was YES. [2022-11-18 18:40:00,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1259 conditions, 1050 events. 60/1050 cut-off events. For 281/573 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 6549 event pairs, 2 based on Foata normal form. 11/909 useless extension candidates. Maximal degree in co-relation 767. Up to 77 conditions per place. [2022-11-18 18:40:00,118 INFO L137 encePairwiseOnDemand]: 398/403 looper letters, 23 selfloop transitions, 6 changer transitions 0/356 dead transitions. [2022-11-18 18:40:00,118 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 356 transitions, 860 flow [2022-11-18 18:40:00,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 18:40:00,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-18 18:40:00,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2319 transitions. [2022-11-18 18:40:00,124 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8220489188231124 [2022-11-18 18:40:00,124 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2319 transitions. [2022-11-18 18:40:00,124 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2319 transitions. [2022-11-18 18:40:00,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:40:00,125 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2319 transitions. [2022-11-18 18:40:00,130 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 331.2857142857143) internal successors, (2319), 7 states have internal predecessors, (2319), 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) [2022-11-18 18:40:00,136 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 403.0) internal successors, (3224), 8 states have internal predecessors, (3224), 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) [2022-11-18 18:40:00,139 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 403.0) internal successors, (3224), 8 states have internal predecessors, (3224), 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) [2022-11-18 18:40:00,139 INFO L175 Difference]: Start difference. First operand has 358 places, 354 transitions, 800 flow. Second operand 7 states and 2319 transitions. [2022-11-18 18:40:00,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 356 transitions, 860 flow [2022-11-18 18:40:00,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 360 places, 356 transitions, 848 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 18:40:00,149 INFO L231 Difference]: Finished difference. Result has 360 places, 353 transitions, 796 flow [2022-11-18 18:40:00,150 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=403, PETRI_DIFFERENCE_MINUEND_FLOW=784, PETRI_DIFFERENCE_MINUEND_PLACES=354, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=353, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=347, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=796, PETRI_PLACES=360, PETRI_TRANSITIONS=353} [2022-11-18 18:40:00,152 INFO L288 CegarLoopForPetriNet]: 352 programPoint places, 8 predicate places. [2022-11-18 18:40:00,152 INFO L495 AbstractCegarLoop]: Abstraction has has 360 places, 353 transitions, 796 flow [2022-11-18 18:40:00,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 329.6666666666667) internal successors, (1978), 6 states have internal predecessors, (1978), 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) [2022-11-18 18:40:00,153 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:40:00,153 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] [2022-11-18 18:40:00,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18df83eb-593b-437b-ac7d-58777d2e163c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 18:40:00,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18df83eb-593b-437b-ac7d-58777d2e163c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:40:00,360 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t1_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-11-18 18:40:00,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:40:00,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1322918445, now seen corresponding path program 1 times [2022-11-18 18:40:00,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:40:00,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320513676] [2022-11-18 18:40:00,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:40:00,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:40:00,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:40:00,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:40:00,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:40:00,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320513676] [2022-11-18 18:40:00,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320513676] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:40:00,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:40:00,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 18:40:00,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770858340] [2022-11-18 18:40:00,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:40:00,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 18:40:00,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:40:00,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 18:40:00,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-18 18:40:00,710 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 270 out of 403 [2022-11-18 18:40:00,714 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 353 transitions, 796 flow. Second operand has 11 states, 11 states have (on average 273.27272727272725) internal successors, (3006), 11 states have internal predecessors, (3006), 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) [2022-11-18 18:40:00,714 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:40:00,714 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 270 of 403 [2022-11-18 18:40:00,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand