./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2d4084-6eb8-4bb7-9a7f-ad37da44aa8f/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2d4084-6eb8-4bb7-9a7f-ad37da44aa8f/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2d4084-6eb8-4bb7-9a7f-ad37da44aa8f/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2d4084-6eb8-4bb7-9a7f-ad37da44aa8f/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2d4084-6eb8-4bb7-9a7f-ad37da44aa8f/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2d4084-6eb8-4bb7-9a7f-ad37da44aa8f/bin/uautomizer-tPACEb0tL8 --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 e280ea7002eb926faba3195da50aa743246f3289123bb9a1b445dc9aaf8e8f3d --- 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-e04fb08 [2022-11-16 12:06:11,905 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:06:11,907 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:06:11,927 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:06:11,928 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:06:11,929 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:06:11,930 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:06:11,933 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:06:11,934 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:06:11,936 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:06:11,937 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:06:11,938 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:06:11,939 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:06:11,940 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:06:11,941 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:06:11,943 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:06:11,944 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:06:11,945 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:06:11,947 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:06:11,949 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:06:11,951 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:06:11,957 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:06:11,958 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:06:11,959 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:06:11,965 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:06:11,965 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:06:11,965 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:06:11,967 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:06:11,967 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:06:11,968 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:06:11,970 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:06:11,972 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:06:11,974 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:06:11,975 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:06:11,978 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:06:11,978 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:06:11,979 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:06:11,980 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:06:11,980 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:06:11,981 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:06:11,982 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:06:11,983 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2d4084-6eb8-4bb7-9a7f-ad37da44aa8f/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-16 12:06:12,028 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:06:12,029 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:06:12,030 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:06:12,030 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:06:12,032 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:06:12,032 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:06:12,033 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:06:12,033 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:06:12,033 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:06:12,034 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:06:12,035 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:06:12,035 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:06:12,035 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:06:12,036 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:06:12,036 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:06:12,036 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:06:12,036 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:06:12,037 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:06:12,037 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 12:06:12,037 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:06:12,037 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:06:12,037 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:06:12,038 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:06:12,038 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:06:12,038 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:06:12,038 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:06:12,040 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:06:12,040 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:06:12,041 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:06:12,041 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:06:12,041 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:06:12,041 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:06:12,042 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:06:12,042 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:06:12,042 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:06:12,042 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_ed2d4084-6eb8-4bb7-9a7f-ad37da44aa8f/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2d4084-6eb8-4bb7-9a7f-ad37da44aa8f/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e280ea7002eb926faba3195da50aa743246f3289123bb9a1b445dc9aaf8e8f3d [2022-11-16 12:06:12,400 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:06:12,425 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:06:12,428 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:06:12,430 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:06:12,431 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:06:12,432 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2d4084-6eb8-4bb7-9a7f-ad37da44aa8f/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c [2022-11-16 12:06:12,513 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2d4084-6eb8-4bb7-9a7f-ad37da44aa8f/bin/uautomizer-tPACEb0tL8/data/96b575a35/5f246fc427d7495087a88c0f6188071e/FLAG3bf8a41ae [2022-11-16 12:06:13,107 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:06:13,110 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2d4084-6eb8-4bb7-9a7f-ad37da44aa8f/sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c [2022-11-16 12:06:13,122 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2d4084-6eb8-4bb7-9a7f-ad37da44aa8f/bin/uautomizer-tPACEb0tL8/data/96b575a35/5f246fc427d7495087a88c0f6188071e/FLAG3bf8a41ae [2022-11-16 12:06:13,419 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2d4084-6eb8-4bb7-9a7f-ad37da44aa8f/bin/uautomizer-tPACEb0tL8/data/96b575a35/5f246fc427d7495087a88c0f6188071e [2022-11-16 12:06:13,422 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:06:13,423 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:06:13,425 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:06:13,426 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:06:13,433 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:06:13,434 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:06:13" (1/1) ... [2022-11-16 12:06:13,435 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b30b3e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:06:13, skipping insertion in model container [2022-11-16 12:06:13,437 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:06:13" (1/1) ... [2022-11-16 12:06:13,448 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:06:13,485 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:06:13,731 WARN L229 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_ed2d4084-6eb8-4bb7-9a7f-ad37da44aa8f/sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c[3182,3195] [2022-11-16 12:06:13,738 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:06:13,748 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:06:13,782 WARN L229 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_ed2d4084-6eb8-4bb7-9a7f-ad37da44aa8f/sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c[3182,3195] [2022-11-16 12:06:13,787 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:06:13,802 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:06:13,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:06:13 WrapperNode [2022-11-16 12:06:13,803 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:06:13,805 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:06:13,805 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:06:13,805 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:06:13,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:06:13" (1/1) ... [2022-11-16 12:06:13,824 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:06:13" (1/1) ... [2022-11-16 12:06:13,859 INFO L138 Inliner]: procedures = 28, calls = 74, calls flagged for inlining = 18, calls inlined = 26, statements flattened = 418 [2022-11-16 12:06:13,859 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:06:13,860 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:06:13,860 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:06:13,860 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:06:13,870 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:06:13" (1/1) ... [2022-11-16 12:06:13,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:06:13" (1/1) ... [2022-11-16 12:06:13,875 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:06:13" (1/1) ... [2022-11-16 12:06:13,875 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:06:13" (1/1) ... [2022-11-16 12:06:13,887 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:06:13" (1/1) ... [2022-11-16 12:06:13,893 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:06:13" (1/1) ... [2022-11-16 12:06:13,896 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:06:13" (1/1) ... [2022-11-16 12:06:13,908 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:06:13" (1/1) ... [2022-11-16 12:06:13,913 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:06:13,914 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:06:13,914 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:06:13,914 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:06:13,915 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:06:13" (1/1) ... [2022-11-16 12:06:13,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:06:13,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2d4084-6eb8-4bb7-9a7f-ad37da44aa8f/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:06:13,961 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2d4084-6eb8-4bb7-9a7f-ad37da44aa8f/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:06:13,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2d4084-6eb8-4bb7-9a7f-ad37da44aa8f/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:06:14,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:06:14,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 12:06:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:06:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:06:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:06:14,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 12:06:14,012 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 12:06:14,013 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 12:06:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 12:06:14,014 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 12:06:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-16 12:06:14,014 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-16 12:06:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:06:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 12:06:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 12:06:14,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 12:06:14,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:06:14,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:06:14,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:06:14,018 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 12:06:14,241 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:06:14,243 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:06:15,107 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:06:15,754 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:06:15,771 INFO L300 CfgBuilder]: Removed 7 assume(true) statements. [2022-11-16 12:06:15,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:06:15 BoogieIcfgContainer [2022-11-16 12:06:15,776 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:06:15,781 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:06:15,781 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:06:15,785 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:06:15,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:06:13" (1/3) ... [2022-11-16 12:06:15,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c1895f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:06:15, skipping insertion in model container [2022-11-16 12:06:15,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:06:13" (2/3) ... [2022-11-16 12:06:15,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c1895f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:06:15, skipping insertion in model container [2022-11-16 12:06:15,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:06:15" (3/3) ... [2022-11-16 12:06:15,790 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-dot-product-alt.wvr.c [2022-11-16 12:06:15,805 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 12:06:15,838 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:06:15,839 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2022-11-16 12:06:15,839 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:06:16,088 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-16 12:06:16,145 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 372 places, 397 transitions, 818 flow [2022-11-16 12:06:16,350 INFO L130 PetriNetUnfolder]: 35/394 cut-off events. [2022-11-16 12:06:16,351 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-16 12:06:16,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 407 conditions, 394 events. 35/394 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 894 event pairs, 0 based on Foata normal form. 0/327 useless extension candidates. Maximal degree in co-relation 316. Up to 2 conditions per place. [2022-11-16 12:06:16,368 INFO L82 GeneralOperation]: Start removeDead. Operand has 372 places, 397 transitions, 818 flow [2022-11-16 12:06:16,381 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 349 places, 373 transitions, 761 flow [2022-11-16 12:06:16,400 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:06:16,413 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;@43828c6f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:06:16,413 INFO L358 AbstractCegarLoop]: Starting to check reachability of 59 error locations. [2022-11-16 12:06:16,435 INFO L130 PetriNetUnfolder]: 3/67 cut-off events. [2022-11-16 12:06:16,435 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:06:16,436 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:06:16,437 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] [2022-11-16 12:06:16,438 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2022-11-16 12:06:16,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:06:16,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1486072453, now seen corresponding path program 1 times [2022-11-16 12:06:16,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:06:16,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458159549] [2022-11-16 12:06:16,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:06:16,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:06:16,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:06:16,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:06:16,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:06:16,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458159549] [2022-11-16 12:06:16,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458159549] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:06:16,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:06:16,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:06:16,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116380870] [2022-11-16 12:06:16,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:06:16,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:06:16,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:06:16,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:06:16,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:06:16,987 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 314 out of 397 [2022-11-16 12:06:16,996 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 373 transitions, 761 flow. Second operand has 4 states, 4 states have (on average 315.5) internal successors, (1262), 4 states have internal predecessors, (1262), 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) [2022-11-16 12:06:17,000 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:06:17,000 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 314 of 397 [2022-11-16 12:06:17,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:06:19,601 INFO L130 PetriNetUnfolder]: 1261/5851 cut-off events. [2022-11-16 12:06:19,601 INFO L131 PetriNetUnfolder]: For 338/338 co-relation queries the response was YES. [2022-11-16 12:06:19,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7684 conditions, 5851 events. 1261/5851 cut-off events. For 338/338 co-relation queries the response was YES. Maximal size of possible extension queue 430. Compared 65258 event pairs, 910 based on Foata normal form. 518/4635 useless extension candidates. Maximal degree in co-relation 3327. Up to 794 conditions per place. [2022-11-16 12:06:19,670 INFO L137 encePairwiseOnDemand]: 353/397 looper letters, 88 selfloop transitions, 14 changer transitions 8/395 dead transitions. [2022-11-16 12:06:19,670 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 347 places, 395 transitions, 1024 flow [2022-11-16 12:06:19,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:06:19,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 12:06:19,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1720 transitions. [2022-11-16 12:06:19,694 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8664987405541562 [2022-11-16 12:06:19,695 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1720 transitions. [2022-11-16 12:06:19,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1720 transitions. [2022-11-16 12:06:19,701 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:06:19,704 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1720 transitions. [2022-11-16 12:06:19,713 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 344.0) internal successors, (1720), 5 states have internal predecessors, (1720), 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) [2022-11-16 12:06:19,729 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 397.0) internal successors, (2382), 6 states have internal predecessors, (2382), 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) [2022-11-16 12:06:19,739 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 397.0) internal successors, (2382), 6 states have internal predecessors, (2382), 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) [2022-11-16 12:06:19,741 INFO L175 Difference]: Start difference. First operand has 349 places, 373 transitions, 761 flow. Second operand 5 states and 1720 transitions. [2022-11-16 12:06:19,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 347 places, 395 transitions, 1024 flow [2022-11-16 12:06:19,757 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 342 places, 395 transitions, 1006 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 12:06:19,767 INFO L231 Difference]: Finished difference. Result has 345 places, 352 transitions, 792 flow [2022-11-16 12:06:19,770 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=397, PETRI_DIFFERENCE_MINUEND_FLOW=704, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=349, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=335, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=792, PETRI_PLACES=345, PETRI_TRANSITIONS=352} [2022-11-16 12:06:19,777 INFO L288 CegarLoopForPetriNet]: 349 programPoint places, -4 predicate places. [2022-11-16 12:06:19,778 INFO L495 AbstractCegarLoop]: Abstraction has has 345 places, 352 transitions, 792 flow [2022-11-16 12:06:19,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 315.5) internal successors, (1262), 4 states have internal predecessors, (1262), 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) [2022-11-16 12:06:19,779 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:06:19,780 INFO L209 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:06:19,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:06:19,781 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2022-11-16 12:06:19,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:06:19,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1594053183, now seen corresponding path program 1 times [2022-11-16 12:06:19,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:06:19,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629976435] [2022-11-16 12:06:19,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:06:19,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:06:19,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:06:20,050 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:06:20,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:06:20,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629976435] [2022-11-16 12:06:20,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629976435] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:06:20,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1853034204] [2022-11-16 12:06:20,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:06:20,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:06:20,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2d4084-6eb8-4bb7-9a7f-ad37da44aa8f/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:06:20,056 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2d4084-6eb8-4bb7-9a7f-ad37da44aa8f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:06:20,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2d4084-6eb8-4bb7-9a7f-ad37da44aa8f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 12:06:20,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:06:20,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 12:06:20,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:06:20,372 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:06:20,373 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:06:20,468 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:06:20,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1853034204] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:06:20,469 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:06:20,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-16 12:06:20,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974511724] [2022-11-16 12:06:20,472 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:06:20,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 12:06:20,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:06:20,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 12:06:20,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:06:20,481 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 314 out of 397 [2022-11-16 12:06:20,486 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 352 transitions, 792 flow. Second operand has 12 states, 12 states have (on average 316.6666666666667) internal successors, (3800), 12 states have internal predecessors, (3800), 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) [2022-11-16 12:06:20,487 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:06:20,487 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 314 of 397 [2022-11-16 12:06:20,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:06:25,902 INFO L130 PetriNetUnfolder]: 3151/14472 cut-off events. [2022-11-16 12:06:25,902 INFO L131 PetriNetUnfolder]: For 253/253 co-relation queries the response was YES. [2022-11-16 12:06:25,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18875 conditions, 14472 events. 3151/14472 cut-off events. For 253/253 co-relation queries the response was YES. Maximal size of possible extension queue 880. Compared 187078 event pairs, 2275 based on Foata normal form. 9/10186 useless extension candidates. Maximal degree in co-relation 14736. Up to 785 conditions per place. [2022-11-16 12:06:26,052 INFO L137 encePairwiseOnDemand]: 374/397 looper letters, 184 selfloop transitions, 62 changer transitions 0/531 dead transitions. [2022-11-16 12:06:26,052 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 354 places, 531 transitions, 1744 flow [2022-11-16 12:06:26,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 12:06:26,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-16 12:06:26,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 5907 transitions. [2022-11-16 12:06:26,066 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8266162888329135 [2022-11-16 12:06:26,066 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 5907 transitions. [2022-11-16 12:06:26,066 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 5907 transitions. [2022-11-16 12:06:26,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:06:26,070 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 5907 transitions. [2022-11-16 12:06:26,085 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 328.1666666666667) internal successors, (5907), 18 states have internal predecessors, (5907), 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) [2022-11-16 12:06:26,101 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 397.0) internal successors, (7543), 19 states have internal predecessors, (7543), 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) [2022-11-16 12:06:26,107 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 397.0) internal successors, (7543), 19 states have internal predecessors, (7543), 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) [2022-11-16 12:06:26,107 INFO L175 Difference]: Start difference. First operand has 345 places, 352 transitions, 792 flow. Second operand 18 states and 5907 transitions. [2022-11-16 12:06:26,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 354 places, 531 transitions, 1744 flow [2022-11-16 12:06:26,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 353 places, 531 transitions, 1736 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:06:26,125 INFO L231 Difference]: Finished difference. Result has 357 places, 394 transitions, 1154 flow [2022-11-16 12:06:26,126 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=397, PETRI_DIFFERENCE_MINUEND_FLOW=784, PETRI_DIFFERENCE_MINUEND_PLACES=336, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=352, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=321, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=1154, PETRI_PLACES=357, PETRI_TRANSITIONS=394} [2022-11-16 12:06:26,127 INFO L288 CegarLoopForPetriNet]: 349 programPoint places, 8 predicate places. [2022-11-16 12:06:26,127 INFO L495 AbstractCegarLoop]: Abstraction has has 357 places, 394 transitions, 1154 flow [2022-11-16 12:06:26,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 316.6666666666667) internal successors, (3800), 12 states have internal predecessors, (3800), 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) [2022-11-16 12:06:26,130 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:06:26,131 INFO L209 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:06:26,144 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2d4084-6eb8-4bb7-9a7f-ad37da44aa8f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 12:06:26,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2d4084-6eb8-4bb7-9a7f-ad37da44aa8f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:06:26,339 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2022-11-16 12:06:26,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:06:26,339 INFO L85 PathProgramCache]: Analyzing trace with hash 2123959915, now seen corresponding path program 1 times [2022-11-16 12:06:26,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:06:26,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250812128] [2022-11-16 12:06:26,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:06:26,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:06:26,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:06:26,570 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:06:26,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:06:26,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250812128] [2022-11-16 12:06:26,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250812128] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:06:26,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1416137934] [2022-11-16 12:06:26,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:06:26,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:06:26,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2d4084-6eb8-4bb7-9a7f-ad37da44aa8f/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:06:26,575 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2d4084-6eb8-4bb7-9a7f-ad37da44aa8f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:06:26,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2d4084-6eb8-4bb7-9a7f-ad37da44aa8f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 12:06:26,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:06:26,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 12:06:26,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:06:26,827 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:06:26,827 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:06:26,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1416137934] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:06:26,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:06:26,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-16 12:06:26,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098505314] [2022-11-16 12:06:26,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:06:26,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:06:26,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:06:26,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:06:26,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:06:26,838 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 314 out of 397 [2022-11-16 12:06:26,840 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 357 places, 394 transitions, 1154 flow. Second operand has 6 states, 6 states have (on average 316.3333333333333) internal successors, (1898), 6 states have internal predecessors, (1898), 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) [2022-11-16 12:06:26,841 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:06:26,841 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 314 of 397 [2022-11-16 12:06:26,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:06:31,380 INFO L130 PetriNetUnfolder]: 3151/14460 cut-off events. [2022-11-16 12:06:31,381 INFO L131 PetriNetUnfolder]: For 405/405 co-relation queries the response was YES. [2022-11-16 12:06:31,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18931 conditions, 14460 events. 3151/14460 cut-off events. For 405/405 co-relation queries the response was YES. Maximal size of possible extension queue 880. Compared 186749 event pairs, 2275 based on Foata normal form. 12/10177 useless extension candidates. Maximal degree in co-relation 15099. Up to 3068 conditions per place. [2022-11-16 12:06:31,644 INFO L137 encePairwiseOnDemand]: 380/397 looper letters, 89 selfloop transitions, 43 changer transitions 0/417 dead transitions. [2022-11-16 12:06:31,645 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 356 places, 417 transitions, 1419 flow [2022-11-16 12:06:31,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:06:31,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-16 12:06:31,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2300 transitions. [2022-11-16 12:06:31,650 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8276358402302987 [2022-11-16 12:06:31,650 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2300 transitions. [2022-11-16 12:06:31,651 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2300 transitions. [2022-11-16 12:06:31,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:06:31,652 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2300 transitions. [2022-11-16 12:06:31,658 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 328.57142857142856) internal successors, (2300), 7 states have internal predecessors, (2300), 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) [2022-11-16 12:06:31,663 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 397.0) internal successors, (3176), 8 states have internal predecessors, (3176), 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) [2022-11-16 12:06:31,664 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 397.0) internal successors, (3176), 8 states have internal predecessors, (3176), 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) [2022-11-16 12:06:31,665 INFO L175 Difference]: Start difference. First operand has 357 places, 394 transitions, 1154 flow. Second operand 7 states and 2300 transitions. [2022-11-16 12:06:31,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 356 places, 417 transitions, 1419 flow [2022-11-16 12:06:31,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 351 places, 417 transitions, 1303 flow, removed 41 selfloop flow, removed 5 redundant places. [2022-11-16 12:06:31,677 INFO L231 Difference]: Finished difference. Result has 351 places, 382 transitions, 1043 flow [2022-11-16 12:06:31,678 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=397, PETRI_DIFFERENCE_MINUEND_FLOW=957, PETRI_DIFFERENCE_MINUEND_PLACES=345, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=382, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=339, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1043, PETRI_PLACES=351, PETRI_TRANSITIONS=382} [2022-11-16 12:06:31,681 INFO L288 CegarLoopForPetriNet]: 349 programPoint places, 2 predicate places. [2022-11-16 12:06:31,681 INFO L495 AbstractCegarLoop]: Abstraction has has 351 places, 382 transitions, 1043 flow [2022-11-16 12:06:31,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 316.3333333333333) internal successors, (1898), 6 states have internal predecessors, (1898), 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) [2022-11-16 12:06:31,684 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:06:31,685 INFO L209 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:06:31,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2d4084-6eb8-4bb7-9a7f-ad37da44aa8f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 12:06:31,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2d4084-6eb8-4bb7-9a7f-ad37da44aa8f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:06:31,893 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2022-11-16 12:06:31,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:06:31,894 INFO L85 PathProgramCache]: Analyzing trace with hash 293966213, now seen corresponding path program 2 times [2022-11-16 12:06:31,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:06:31,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045170131] [2022-11-16 12:06:31,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:06:31,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:06:31,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:06:32,241 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:06:32,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:06:32,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045170131] [2022-11-16 12:06:32,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045170131] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:06:32,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1094522698] [2022-11-16 12:06:32,242 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:06:32,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:06:32,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2d4084-6eb8-4bb7-9a7f-ad37da44aa8f/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:06:32,244 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2d4084-6eb8-4bb7-9a7f-ad37da44aa8f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:06:32,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2d4084-6eb8-4bb7-9a7f-ad37da44aa8f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 12:06:32,410 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 12:06:32,411 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:06:32,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 12:06:32,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:06:32,589 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-11-16 12:06:32,589 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:06:32,770 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-11-16 12:06:32,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1094522698] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:06:32,770 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:06:32,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 17 [2022-11-16 12:06:32,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21171763] [2022-11-16 12:06:32,771 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:06:32,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:06:32,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:06:32,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:06:32,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:06:32,777 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 289 out of 397 [2022-11-16 12:06:32,783 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 351 places, 382 transitions, 1043 flow. Second operand has 18 states, 18 states have (on average 292.6111111111111) internal successors, (5267), 18 states have internal predecessors, (5267), 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) [2022-11-16 12:06:32,784 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:06:32,784 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 289 of 397 [2022-11-16 12:06:32,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:06:48,383 INFO L130 PetriNetUnfolder]: 15898/57317 cut-off events. [2022-11-16 12:06:48,383 INFO L131 PetriNetUnfolder]: For 1009/1009 co-relation queries the response was YES. [2022-11-16 12:06:48,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78814 conditions, 57317 events. 15898/57317 cut-off events. For 1009/1009 co-relation queries the response was YES. Maximal size of possible extension queue 2255. Compared 833776 event pairs, 11018 based on Foata normal form. 6/38388 useless extension candidates. Maximal degree in co-relation 45052. Up to 1526 conditions per place. [2022-11-16 12:06:48,887 INFO L137 encePairwiseOnDemand]: 369/397 looper letters, 471 selfloop transitions, 93 changer transitions 0/824 dead transitions. [2022-11-16 12:06:48,887 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 824 transitions, 3221 flow [2022-11-16 12:06:48,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-11-16 12:06:48,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2022-11-16 12:06:48,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 14731 transitions. [2022-11-16 12:06:48,917 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7572610908343186 [2022-11-16 12:06:48,917 INFO L72 ComplementDD]: Start complementDD. Operand 49 states and 14731 transitions. [2022-11-16 12:06:48,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 14731 transitions. [2022-11-16 12:06:48,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:06:48,927 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 49 states and 14731 transitions. [2022-11-16 12:06:48,968 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 50 states, 49 states have (on average 300.6326530612245) internal successors, (14731), 49 states have internal predecessors, (14731), 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) [2022-11-16 12:06:49,012 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 50 states, 50 states have (on average 397.0) internal successors, (19850), 50 states have internal predecessors, (19850), 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) [2022-11-16 12:06:49,020 INFO L81 ComplementDD]: Finished complementDD. Result has 50 states, 50 states have (on average 397.0) internal successors, (19850), 50 states have internal predecessors, (19850), 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) [2022-11-16 12:06:49,020 INFO L175 Difference]: Start difference. First operand has 351 places, 382 transitions, 1043 flow. Second operand 49 states and 14731 transitions. [2022-11-16 12:06:49,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 824 transitions, 3221 flow [2022-11-16 12:06:49,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 392 places, 824 transitions, 3152 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 12:06:49,034 INFO L231 Difference]: Finished difference. Result has 402 places, 415 transitions, 1385 flow [2022-11-16 12:06:49,035 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=397, PETRI_DIFFERENCE_MINUEND_FLOW=969, PETRI_DIFFERENCE_MINUEND_PLACES=344, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=380, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=314, PETRI_DIFFERENCE_SUBTRAHEND_STATES=49, PETRI_FLOW=1385, PETRI_PLACES=402, PETRI_TRANSITIONS=415} [2022-11-16 12:06:49,037 INFO L288 CegarLoopForPetriNet]: 349 programPoint places, 53 predicate places. [2022-11-16 12:06:49,037 INFO L495 AbstractCegarLoop]: Abstraction has has 402 places, 415 transitions, 1385 flow [2022-11-16 12:06:49,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 292.6111111111111) internal successors, (5267), 18 states have internal predecessors, (5267), 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) [2022-11-16 12:06:49,039 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:06:49,039 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:06:49,052 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2d4084-6eb8-4bb7-9a7f-ad37da44aa8f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 12:06:49,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2d4084-6eb8-4bb7-9a7f-ad37da44aa8f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:06:49,253 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2022-11-16 12:06:49,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:06:49,253 INFO L85 PathProgramCache]: Analyzing trace with hash 906517914, now seen corresponding path program 1 times [2022-11-16 12:06:49,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:06:49,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56982813] [2022-11-16 12:06:49,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:06:49,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:06:49,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:06:49,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:06:49,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:06:49,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56982813] [2022-11-16 12:06:49,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56982813] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:06:49,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:06:49,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:06:49,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179292031] [2022-11-16 12:06:49,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:06:49,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:06:49,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:06:49,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:06:49,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:06:49,425 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 338 out of 397 [2022-11-16 12:06:49,427 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 402 places, 415 transitions, 1385 flow. Second operand has 4 states, 4 states have (on average 339.5) internal successors, (1358), 4 states have internal predecessors, (1358), 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) [2022-11-16 12:06:49,427 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:06:49,427 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 338 of 397 [2022-11-16 12:06:49,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:06:59,114 INFO L130 PetriNetUnfolder]: 8807/39972 cut-off events. [2022-11-16 12:06:59,115 INFO L131 PetriNetUnfolder]: For 1071/1071 co-relation queries the response was YES. [2022-11-16 12:06:59,363 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52230 conditions, 39972 events. 8807/39972 cut-off events. For 1071/1071 co-relation queries the response was YES. Maximal size of possible extension queue 1519. Compared 586024 event pairs, 6370 based on Foata normal form. 0/28002 useless extension candidates. Maximal degree in co-relation 48446. Up to 5364 conditions per place. [2022-11-16 12:06:59,675 INFO L137 encePairwiseOnDemand]: 391/397 looper letters, 56 selfloop transitions, 4 changer transitions 0/443 dead transitions. [2022-11-16 12:06:59,675 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 406 places, 443 transitions, 1567 flow [2022-11-16 12:06:59,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:06:59,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 12:06:59,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1752 transitions. [2022-11-16 12:06:59,682 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8826196473551637 [2022-11-16 12:06:59,682 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1752 transitions. [2022-11-16 12:06:59,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1752 transitions. [2022-11-16 12:06:59,684 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:06:59,684 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1752 transitions. [2022-11-16 12:06:59,689 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 350.4) internal successors, (1752), 5 states have internal predecessors, (1752), 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) [2022-11-16 12:06:59,693 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 397.0) internal successors, (2382), 6 states have internal predecessors, (2382), 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) [2022-11-16 12:06:59,694 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 397.0) internal successors, (2382), 6 states have internal predecessors, (2382), 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) [2022-11-16 12:06:59,694 INFO L175 Difference]: Start difference. First operand has 402 places, 415 transitions, 1385 flow. Second operand 5 states and 1752 transitions. [2022-11-16 12:06:59,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 406 places, 443 transitions, 1567 flow [2022-11-16 12:06:59,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 392 places, 443 transitions, 1450 flow, removed 15 selfloop flow, removed 14 redundant places. [2022-11-16 12:06:59,709 INFO L231 Difference]: Finished difference. Result has 395 places, 418 transitions, 1298 flow [2022-11-16 12:06:59,710 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=397, PETRI_DIFFERENCE_MINUEND_FLOW=1268, PETRI_DIFFERENCE_MINUEND_PLACES=388, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=415, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=411, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1298, PETRI_PLACES=395, PETRI_TRANSITIONS=418} [2022-11-16 12:06:59,713 INFO L288 CegarLoopForPetriNet]: 349 programPoint places, 46 predicate places. [2022-11-16 12:06:59,713 INFO L495 AbstractCegarLoop]: Abstraction has has 395 places, 418 transitions, 1298 flow [2022-11-16 12:06:59,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 339.5) internal successors, (1358), 4 states have internal predecessors, (1358), 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) [2022-11-16 12:06:59,715 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:06:59,715 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:06:59,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:06:59,716 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2022-11-16 12:06:59,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:06:59,717 INFO L85 PathProgramCache]: Analyzing trace with hash -733952557, now seen corresponding path program 1 times [2022-11-16 12:06:59,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:06:59,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617256013] [2022-11-16 12:06:59,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:06:59,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:06:59,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:06:59,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:06:59,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:06:59,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617256013] [2022-11-16 12:06:59,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617256013] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:06:59,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:06:59,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:06:59,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097948492] [2022-11-16 12:06:59,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:06:59,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:06:59,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:07:00,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:07:00,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:07:00,003 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 300 out of 397 [2022-11-16 12:07:00,006 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 395 places, 418 transitions, 1298 flow. Second operand has 7 states, 7 states have (on average 303.42857142857144) internal successors, (2124), 7 states have internal predecessors, (2124), 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) [2022-11-16 12:07:00,006 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:07:00,008 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 300 of 397 [2022-11-16 12:07:00,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand