./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/popl20-more-multiply-verify.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 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_b77ed248-a657-47fd-b7ac-dfb2a3b80018/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77ed248-a657-47fd-b7ac-dfb2a3b80018/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77ed248-a657-47fd-b7ac-dfb2a3b80018/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77ed248-a657-47fd-b7ac-dfb2a3b80018/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-multiply-verify.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77ed248-a657-47fd-b7ac-dfb2a3b80018/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77ed248-a657-47fd-b7ac-dfb2a3b80018/bin/uautomizer-uyxdKDjOR8 --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 b6872adb14a2dfa535a444bb6d903bd37f60f26cf718935f2927b47d5c5a6aaa --- 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-2329fc7 [2022-12-13 14:32:50,338 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 14:32:50,340 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 14:32:50,359 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 14:32:50,359 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 14:32:50,360 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 14:32:50,361 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 14:32:50,363 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 14:32:50,364 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 14:32:50,365 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 14:32:50,366 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 14:32:50,367 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 14:32:50,368 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 14:32:50,369 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 14:32:50,370 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 14:32:50,371 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 14:32:50,372 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 14:32:50,373 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 14:32:50,374 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 14:32:50,376 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 14:32:50,378 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 14:32:50,379 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 14:32:50,380 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 14:32:50,381 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 14:32:50,384 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 14:32:50,385 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 14:32:50,385 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 14:32:50,386 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 14:32:50,386 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 14:32:50,387 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 14:32:50,388 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 14:32:50,388 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 14:32:50,389 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 14:32:50,390 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 14:32:50,391 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 14:32:50,391 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 14:32:50,392 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 14:32:50,392 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 14:32:50,392 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 14:32:50,393 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 14:32:50,394 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 14:32:50,394 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77ed248-a657-47fd-b7ac-dfb2a3b80018/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 14:32:50,415 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 14:32:50,415 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 14:32:50,415 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 14:32:50,415 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 14:32:50,416 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 14:32:50,416 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 14:32:50,417 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 14:32:50,417 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 14:32:50,417 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 14:32:50,417 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 14:32:50,418 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 14:32:50,418 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 14:32:50,418 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 14:32:50,418 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 14:32:50,418 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 14:32:50,419 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 14:32:50,419 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 14:32:50,419 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 14:32:50,419 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 14:32:50,419 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 14:32:50,419 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 14:32:50,420 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 14:32:50,420 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 14:32:50,420 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 14:32:50,420 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 14:32:50,420 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 14:32:50,420 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:32:50,421 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 14:32:50,421 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 14:32:50,421 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 14:32:50,421 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 14:32:50,421 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 14:32:50,422 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 14:32:50,422 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 14:32:50,422 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 14:32:50,422 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 14:32:50,423 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 14:32:50,423 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_b77ed248-a657-47fd-b7ac-dfb2a3b80018/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77ed248-a657-47fd-b7ac-dfb2a3b80018/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b6872adb14a2dfa535a444bb6d903bd37f60f26cf718935f2927b47d5c5a6aaa [2022-12-13 14:32:50,633 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 14:32:50,652 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 14:32:50,654 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 14:32:50,654 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 14:32:50,655 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 14:32:50,656 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77ed248-a657-47fd-b7ac-dfb2a3b80018/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/weaver/popl20-more-multiply-verify.wvr.c [2022-12-13 14:32:53,181 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 14:32:53,325 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 14:32:53,326 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77ed248-a657-47fd-b7ac-dfb2a3b80018/sv-benchmarks/c/weaver/popl20-more-multiply-verify.wvr.c [2022-12-13 14:32:53,330 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77ed248-a657-47fd-b7ac-dfb2a3b80018/bin/uautomizer-uyxdKDjOR8/data/b552d4d50/2fff30d208f34dfb841757541fcf69e7/FLAGda1d3e590 [2022-12-13 14:32:53,751 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77ed248-a657-47fd-b7ac-dfb2a3b80018/bin/uautomizer-uyxdKDjOR8/data/b552d4d50/2fff30d208f34dfb841757541fcf69e7 [2022-12-13 14:32:53,754 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 14:32:53,755 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 14:32:53,755 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 14:32:53,756 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 14:32:53,758 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 14:32:53,759 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:32:53" (1/1) ... [2022-12-13 14:32:53,760 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46583333 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:32:53, skipping insertion in model container [2022-12-13 14:32:53,760 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:32:53" (1/1) ... [2022-12-13 14:32:53,765 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 14:32:53,778 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 14:32:53,883 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:32:53,883 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:32:53,885 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:32:53,887 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:32:53,889 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:32:53,890 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:32:53,890 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:32:53,891 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:32:53,891 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:32:53,892 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:32:53,899 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77ed248-a657-47fd-b7ac-dfb2a3b80018/sv-benchmarks/c/weaver/popl20-more-multiply-verify.wvr.c[3042,3055] [2022-12-13 14:32:53,903 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:32:53,910 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 14:32:53,920 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:32:53,920 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:32:53,920 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:32:53,921 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:32:53,922 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:32:53,922 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:32:53,923 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:32:53,924 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:32:53,924 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:32:53,925 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:32:53,928 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77ed248-a657-47fd-b7ac-dfb2a3b80018/sv-benchmarks/c/weaver/popl20-more-multiply-verify.wvr.c[3042,3055] [2022-12-13 14:32:53,930 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:32:53,940 INFO L208 MainTranslator]: Completed translation [2022-12-13 14:32:53,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:32:53 WrapperNode [2022-12-13 14:32:53,940 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 14:32:53,941 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 14:32:53,941 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 14:32:53,941 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 14:32:53,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:32:53" (1/1) ... [2022-12-13 14:32:53,954 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:32:53" (1/1) ... [2022-12-13 14:32:53,971 INFO L138 Inliner]: procedures = 26, calls = 50, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 195 [2022-12-13 14:32:53,972 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 14:32:53,972 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 14:32:53,972 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 14:32:53,972 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 14:32:53,979 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:32:53" (1/1) ... [2022-12-13 14:32:53,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:32:53" (1/1) ... [2022-12-13 14:32:53,981 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:32:53" (1/1) ... [2022-12-13 14:32:53,982 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:32:53" (1/1) ... [2022-12-13 14:32:53,986 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:32:53" (1/1) ... [2022-12-13 14:32:53,989 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:32:53" (1/1) ... [2022-12-13 14:32:53,990 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:32:53" (1/1) ... [2022-12-13 14:32:53,991 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:32:53" (1/1) ... [2022-12-13 14:32:53,993 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 14:32:53,993 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 14:32:53,994 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 14:32:53,994 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 14:32:53,994 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:32:53" (1/1) ... [2022-12-13 14:32:53,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:32:54,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77ed248-a657-47fd-b7ac-dfb2a3b80018/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:32:54,020 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77ed248-a657-47fd-b7ac-dfb2a3b80018/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 14:32:54,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77ed248-a657-47fd-b7ac-dfb2a3b80018/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 14:32:54,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 14:32:54,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 14:32:54,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 14:32:54,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 14:32:54,054 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-13 14:32:54,055 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-13 14:32:54,055 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-13 14:32:54,055 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-13 14:32:54,055 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-13 14:32:54,055 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-13 14:32:54,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 14:32:54,055 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 14:32:54,055 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 14:32:54,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 14:32:54,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 14:32:54,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 14:32:54,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 14:32:54,056 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 14:32:54,138 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 14:32:54,139 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 14:32:54,440 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 14:32:54,588 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 14:32:54,588 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-13 14:32:54,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:32:54 BoogieIcfgContainer [2022-12-13 14:32:54,591 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 14:32:54,594 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 14:32:54,594 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 14:32:54,597 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 14:32:54,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 02:32:53" (1/3) ... [2022-12-13 14:32:54,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41831af1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:32:54, skipping insertion in model container [2022-12-13 14:32:54,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:32:53" (2/3) ... [2022-12-13 14:32:54,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41831af1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:32:54, skipping insertion in model container [2022-12-13 14:32:54,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:32:54" (3/3) ... [2022-12-13 14:32:54,600 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-multiply-verify.wvr.c [2022-12-13 14:32:54,608 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 14:32:54,619 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 14:32:54,619 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-12-13 14:32:54,619 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 14:32:54,691 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-13 14:32:54,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 170 places, 169 transitions, 362 flow [2022-12-13 14:32:54,766 INFO L130 PetriNetUnfolder]: 9/166 cut-off events. [2022-12-13 14:32:54,766 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 14:32:54,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 179 conditions, 166 events. 9/166 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 140 event pairs, 0 based on Foata normal form. 0/145 useless extension candidates. Maximal degree in co-relation 123. Up to 2 conditions per place. [2022-12-13 14:32:54,770 INFO L82 GeneralOperation]: Start removeDead. Operand has 170 places, 169 transitions, 362 flow [2022-12-13 14:32:54,774 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 147 places, 145 transitions, 305 flow [2022-12-13 14:32:54,777 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 14:32:54,785 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 147 places, 145 transitions, 305 flow [2022-12-13 14:32:54,787 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 147 places, 145 transitions, 305 flow [2022-12-13 14:32:54,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 147 places, 145 transitions, 305 flow [2022-12-13 14:32:54,810 INFO L130 PetriNetUnfolder]: 8/145 cut-off events. [2022-12-13 14:32:54,810 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 14:32:54,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 157 conditions, 145 events. 8/145 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 135 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 123. Up to 2 conditions per place. [2022-12-13 14:32:54,812 INFO L119 LiptonReduction]: Number of co-enabled transitions 2332 [2022-12-13 14:32:59,822 INFO L134 LiptonReduction]: Checked pairs total: 2268 [2022-12-13 14:32:59,822 INFO L136 LiptonReduction]: Total number of compositions: 139 [2022-12-13 14:32:59,832 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 14:32:59,837 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;@7dc44fb9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 14:32:59,837 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2022-12-13 14:32:59,838 INFO L130 PetriNetUnfolder]: 1/2 cut-off events. [2022-12-13 14:32:59,839 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 14:32:59,839 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:32:59,839 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-12-13 14:32:59,839 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2022-12-13 14:32:59,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:32:59,843 INFO L85 PathProgramCache]: Analyzing trace with hash 24772, now seen corresponding path program 1 times [2022-12-13 14:32:59,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:32:59,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259866987] [2022-12-13 14:32:59,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:32:59,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:32:59,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:33:00,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:33:00,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:33:00,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259866987] [2022-12-13 14:33:00,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259866987] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:33:00,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:33:00,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 14:33:00,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862580760] [2022-12-13 14:33:00,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:33:00,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:33:00,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:33:00,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:33:00,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:33:00,077 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 308 [2022-12-13 14:33:00,080 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 32 transitions, 79 flow. Second operand has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 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) [2022-12-13 14:33:00,080 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:33:00,081 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 308 [2022-12-13 14:33:00,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:33:00,351 INFO L130 PetriNetUnfolder]: 1043/1549 cut-off events. [2022-12-13 14:33:00,351 INFO L131 PetriNetUnfolder]: For 70/70 co-relation queries the response was YES. [2022-12-13 14:33:00,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3237 conditions, 1549 events. 1043/1549 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 6230 event pairs, 826 based on Foata normal form. 0/861 useless extension candidates. Maximal degree in co-relation 1320. Up to 777 conditions per place. [2022-12-13 14:33:00,363 INFO L137 encePairwiseOnDemand]: 299/308 looper letters, 49 selfloop transitions, 2 changer transitions 0/51 dead transitions. [2022-12-13 14:33:00,363 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 51 transitions, 234 flow [2022-12-13 14:33:00,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:33:00,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 14:33:00,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 489 transitions. [2022-12-13 14:33:00,377 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5292207792207793 [2022-12-13 14:33:00,378 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 489 transitions. [2022-12-13 14:33:00,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 489 transitions. [2022-12-13 14:33:00,380 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:33:00,382 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 489 transitions. [2022-12-13 14:33:00,386 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 163.0) internal successors, (489), 3 states have internal predecessors, (489), 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) [2022-12-13 14:33:00,391 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 308.0) internal successors, (1232), 4 states have internal predecessors, (1232), 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) [2022-12-13 14:33:00,392 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 308.0) internal successors, (1232), 4 states have internal predecessors, (1232), 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) [2022-12-13 14:33:00,393 INFO L175 Difference]: Start difference. First operand has 39 places, 32 transitions, 79 flow. Second operand 3 states and 489 transitions. [2022-12-13 14:33:00,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 51 transitions, 234 flow [2022-12-13 14:33:00,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 51 transitions, 216 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-12-13 14:33:00,401 INFO L231 Difference]: Finished difference. Result has 32 places, 28 transitions, 74 flow [2022-12-13 14:33:00,403 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=32, PETRI_TRANSITIONS=28} [2022-12-13 14:33:00,406 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, -7 predicate places. [2022-12-13 14:33:00,406 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 28 transitions, 74 flow [2022-12-13 14:33:00,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 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) [2022-12-13 14:33:00,406 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:33:00,406 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 14:33:00,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 14:33:00,407 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2022-12-13 14:33:00,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:33:00,407 INFO L85 PathProgramCache]: Analyzing trace with hash 768989, now seen corresponding path program 1 times [2022-12-13 14:33:00,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:33:00,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574210100] [2022-12-13 14:33:00,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:33:00,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:33:00,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:33:00,500 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:33:00,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:33:00,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574210100] [2022-12-13 14:33:00,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574210100] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:33:00,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [822900770] [2022-12-13 14:33:00,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:33:00,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:33:00,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77ed248-a657-47fd-b7ac-dfb2a3b80018/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:33:00,503 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77ed248-a657-47fd-b7ac-dfb2a3b80018/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:33:00,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77ed248-a657-47fd-b7ac-dfb2a3b80018/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 14:33:00,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:33:00,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 14:33:00,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:33:00,594 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:33:00,594 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:33:00,608 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:33:00,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [822900770] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 14:33:00,609 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 14:33:00,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2022-12-13 14:33:00,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813082017] [2022-12-13 14:33:00,610 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 14:33:00,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 14:33:00,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:33:00,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 14:33:00,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-12-13 14:33:00,636 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 308 [2022-12-13 14:33:00,637 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 28 transitions, 74 flow. Second operand has 7 states, 7 states have (on average 143.14285714285714) internal successors, (1002), 7 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:33:00,637 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:33:00,638 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 308 [2022-12-13 14:33:00,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:33:01,136 INFO L130 PetriNetUnfolder]: 2609/3871 cut-off events. [2022-12-13 14:33:01,136 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 14:33:01,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7943 conditions, 3871 events. 2609/3871 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 198. Compared 18345 event pairs, 2065 based on Foata normal form. 0/2156 useless extension candidates. Maximal degree in co-relation 6351. Up to 776 conditions per place. [2022-12-13 14:33:01,149 INFO L137 encePairwiseOnDemand]: 304/308 looper letters, 117 selfloop transitions, 9 changer transitions 0/126 dead transitions. [2022-12-13 14:33:01,149 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 126 transitions, 558 flow [2022-12-13 14:33:01,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 14:33:01,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 14:33:01,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1123 transitions. [2022-12-13 14:33:01,155 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5208719851576994 [2022-12-13 14:33:01,155 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1123 transitions. [2022-12-13 14:33:01,155 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1123 transitions. [2022-12-13 14:33:01,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:33:01,156 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1123 transitions. [2022-12-13 14:33:01,157 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 160.42857142857142) internal successors, (1123), 7 states have internal predecessors, (1123), 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) [2022-12-13 14:33:01,160 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 308.0) internal successors, (2464), 8 states have internal predecessors, (2464), 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) [2022-12-13 14:33:01,161 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 308.0) internal successors, (2464), 8 states have internal predecessors, (2464), 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) [2022-12-13 14:33:01,161 INFO L175 Difference]: Start difference. First operand has 32 places, 28 transitions, 74 flow. Second operand 7 states and 1123 transitions. [2022-12-13 14:33:01,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 126 transitions, 558 flow [2022-12-13 14:33:01,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 126 transitions, 556 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 14:33:01,163 INFO L231 Difference]: Finished difference. Result has 40 places, 34 transitions, 131 flow [2022-12-13 14:33:01,163 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=131, PETRI_PLACES=40, PETRI_TRANSITIONS=34} [2022-12-13 14:33:01,164 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 1 predicate places. [2022-12-13 14:33:01,164 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 34 transitions, 131 flow [2022-12-13 14:33:01,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 143.14285714285714) internal successors, (1002), 7 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:33:01,164 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:33:01,164 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1] [2022-12-13 14:33:01,170 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77ed248-a657-47fd-b7ac-dfb2a3b80018/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 14:33:01,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77ed248-a657-47fd-b7ac-dfb2a3b80018/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:33:01,365 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2022-12-13 14:33:01,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:33:01,366 INFO L85 PathProgramCache]: Analyzing trace with hash 23839717, now seen corresponding path program 1 times [2022-12-13 14:33:01,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:33:01,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651785868] [2022-12-13 14:33:01,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:33:01,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:33:01,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:33:01,445 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:33:01,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:33:01,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651785868] [2022-12-13 14:33:01,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651785868] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:33:01,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [635704487] [2022-12-13 14:33:01,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:33:01,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:33:01,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77ed248-a657-47fd-b7ac-dfb2a3b80018/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:33:01,447 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77ed248-a657-47fd-b7ac-dfb2a3b80018/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:33:01,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77ed248-a657-47fd-b7ac-dfb2a3b80018/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 14:33:01,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:33:01,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 14:33:01,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:33:01,508 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:33:01,509 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:33:01,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [635704487] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:33:01,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 14:33:01,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-12-13 14:33:01,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796551098] [2022-12-13 14:33:01,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:33:01,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 14:33:01,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:33:01,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 14:33:01,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:33:01,527 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 308 [2022-12-13 14:33:01,528 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 34 transitions, 131 flow. Second operand has 5 states, 5 states have (on average 142.8) internal successors, (714), 5 states have internal predecessors, (714), 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) [2022-12-13 14:33:01,528 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:33:01,528 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 308 [2022-12-13 14:33:01,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:33:02,011 INFO L130 PetriNetUnfolder]: 2606/3867 cut-off events. [2022-12-13 14:33:02,012 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 14:33:02,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7945 conditions, 3867 events. 2606/3867 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 18493 event pairs, 2065 based on Foata normal form. 2/2159 useless extension candidates. Maximal degree in co-relation 4757. Up to 2321 conditions per place. [2022-12-13 14:33:02,024 INFO L137 encePairwiseOnDemand]: 305/308 looper letters, 73 selfloop transitions, 3 changer transitions 0/76 dead transitions. [2022-12-13 14:33:02,024 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 76 transitions, 360 flow [2022-12-13 14:33:02,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 14:33:02,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 14:33:02,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 786 transitions. [2022-12-13 14:33:02,028 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5103896103896104 [2022-12-13 14:33:02,028 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 786 transitions. [2022-12-13 14:33:02,028 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 786 transitions. [2022-12-13 14:33:02,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:33:02,029 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 786 transitions. [2022-12-13 14:33:02,030 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 157.2) internal successors, (786), 5 states have internal predecessors, (786), 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) [2022-12-13 14:33:02,031 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 308.0) internal successors, (1848), 6 states have internal predecessors, (1848), 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) [2022-12-13 14:33:02,032 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 308.0) internal successors, (1848), 6 states have internal predecessors, (1848), 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) [2022-12-13 14:33:02,032 INFO L175 Difference]: Start difference. First operand has 40 places, 34 transitions, 131 flow. Second operand 5 states and 786 transitions. [2022-12-13 14:33:02,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 76 transitions, 360 flow [2022-12-13 14:33:02,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 76 transitions, 352 flow, removed 3 selfloop flow, removed 1 redundant places. [2022-12-13 14:33:02,034 INFO L231 Difference]: Finished difference. Result has 41 places, 30 transitions, 102 flow [2022-12-13 14:33:02,034 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=102, PETRI_PLACES=41, PETRI_TRANSITIONS=30} [2022-12-13 14:33:02,035 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 2 predicate places. [2022-12-13 14:33:02,035 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 30 transitions, 102 flow [2022-12-13 14:33:02,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 142.8) internal successors, (714), 5 states have internal predecessors, (714), 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) [2022-12-13 14:33:02,035 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:33:02,035 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 14:33:02,040 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77ed248-a657-47fd-b7ac-dfb2a3b80018/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 14:33:02,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77ed248-a657-47fd-b7ac-dfb2a3b80018/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:33:02,236 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2022-12-13 14:33:02,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:33:02,237 INFO L85 PathProgramCache]: Analyzing trace with hash 738994883, now seen corresponding path program 1 times [2022-12-13 14:33:02,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:33:02,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155685780] [2022-12-13 14:33:02,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:33:02,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:33:02,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:33:02,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:33:02,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:33:02,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155685780] [2022-12-13 14:33:02,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155685780] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:33:02,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:33:02,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 14:33:02,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039658419] [2022-12-13 14:33:02,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:33:02,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 14:33:02,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:33:02,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 14:33:02,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 14:33:02,341 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 308 [2022-12-13 14:33:02,341 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 30 transitions, 102 flow. Second operand has 4 states, 4 states have (on average 140.25) internal successors, (561), 4 states have internal predecessors, (561), 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) [2022-12-13 14:33:02,342 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:33:02,342 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 308 [2022-12-13 14:33:02,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:33:02,746 INFO L130 PetriNetUnfolder]: 1994/3033 cut-off events. [2022-12-13 14:33:02,746 INFO L131 PetriNetUnfolder]: For 23/23 co-relation queries the response was YES. [2022-12-13 14:33:02,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6251 conditions, 3033 events. 1994/3033 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 189. Compared 14666 event pairs, 1359 based on Foata normal form. 0/1809 useless extension candidates. Maximal degree in co-relation 6049. Up to 2535 conditions per place. [2022-12-13 14:33:02,767 INFO L137 encePairwiseOnDemand]: 297/308 looper letters, 47 selfloop transitions, 4 changer transitions 0/51 dead transitions. [2022-12-13 14:33:02,768 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 51 transitions, 252 flow [2022-12-13 14:33:02,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 14:33:02,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 14:33:02,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 754 transitions. [2022-12-13 14:33:02,771 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4896103896103896 [2022-12-13 14:33:02,772 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 754 transitions. [2022-12-13 14:33:02,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 754 transitions. [2022-12-13 14:33:02,773 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:33:02,773 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 754 transitions. [2022-12-13 14:33:02,776 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 150.8) internal successors, (754), 5 states have internal predecessors, (754), 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) [2022-12-13 14:33:02,779 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 308.0) internal successors, (1848), 6 states have internal predecessors, (1848), 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) [2022-12-13 14:33:02,781 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 308.0) internal successors, (1848), 6 states have internal predecessors, (1848), 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) [2022-12-13 14:33:02,781 INFO L175 Difference]: Start difference. First operand has 41 places, 30 transitions, 102 flow. Second operand 5 states and 754 transitions. [2022-12-13 14:33:02,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 51 transitions, 252 flow [2022-12-13 14:33:02,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 51 transitions, 247 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 14:33:02,783 INFO L231 Difference]: Finished difference. Result has 46 places, 32 transitions, 143 flow [2022-12-13 14:33:02,783 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=143, PETRI_PLACES=46, PETRI_TRANSITIONS=32} [2022-12-13 14:33:02,784 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 7 predicate places. [2022-12-13 14:33:02,784 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 32 transitions, 143 flow [2022-12-13 14:33:02,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 140.25) internal successors, (561), 4 states have internal predecessors, (561), 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) [2022-12-13 14:33:02,785 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:33:02,785 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 1, 1] [2022-12-13 14:33:02,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 14:33:02,785 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2022-12-13 14:33:02,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:33:02,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1435164420, now seen corresponding path program 2 times [2022-12-13 14:33:02,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:33:02,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014202663] [2022-12-13 14:33:02,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:33:02,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:33:02,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:33:02,854 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:33:02,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:33:02,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014202663] [2022-12-13 14:33:02,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014202663] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:33:02,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1600774812] [2022-12-13 14:33:02,855 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 14:33:02,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:33:02,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77ed248-a657-47fd-b7ac-dfb2a3b80018/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:33:02,856 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77ed248-a657-47fd-b7ac-dfb2a3b80018/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:33:02,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77ed248-a657-47fd-b7ac-dfb2a3b80018/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 14:33:02,918 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 14:33:02,918 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 14:33:02,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 14:33:02,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:33:02,933 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-13 14:33:02,933 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:33:02,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1600774812] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:33:02,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 14:33:02,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [5] total 6 [2022-12-13 14:33:02,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888262517] [2022-12-13 14:33:02,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:33:02,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:33:02,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:33:02,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:33:02,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-12-13 14:33:02,943 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 308 [2022-12-13 14:33:02,944 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 32 transitions, 143 flow. Second operand has 3 states, 3 states have (on average 144.0) internal successors, (432), 3 states have internal predecessors, (432), 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) [2022-12-13 14:33:02,944 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:33:02,944 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 308 [2022-12-13 14:33:02,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:33:03,283 INFO L130 PetriNetUnfolder]: 1994/3032 cut-off events. [2022-12-13 14:33:03,284 INFO L131 PetriNetUnfolder]: For 1135/1135 co-relation queries the response was YES. [2022-12-13 14:33:03,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8544 conditions, 3032 events. 1994/3032 cut-off events. For 1135/1135 co-relation queries the response was YES. Maximal size of possible extension queue 192. Compared 14505 event pairs, 1535 based on Foata normal form. 1/2337 useless extension candidates. Maximal degree in co-relation 8333. Up to 3032 conditions per place. [2022-12-13 14:33:03,301 INFO L137 encePairwiseOnDemand]: 306/308 looper letters, 30 selfloop transitions, 1 changer transitions 0/31 dead transitions. [2022-12-13 14:33:03,301 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 31 transitions, 195 flow [2022-12-13 14:33:03,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:33:03,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 14:33:03,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 455 transitions. [2022-12-13 14:33:03,302 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49242424242424243 [2022-12-13 14:33:03,303 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 455 transitions. [2022-12-13 14:33:03,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 455 transitions. [2022-12-13 14:33:03,303 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:33:03,303 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 455 transitions. [2022-12-13 14:33:03,304 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 151.66666666666666) internal successors, (455), 3 states have internal predecessors, (455), 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) [2022-12-13 14:33:03,305 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 308.0) internal successors, (1232), 4 states have internal predecessors, (1232), 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) [2022-12-13 14:33:03,306 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 308.0) internal successors, (1232), 4 states have internal predecessors, (1232), 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) [2022-12-13 14:33:03,306 INFO L175 Difference]: Start difference. First operand has 46 places, 32 transitions, 143 flow. Second operand 3 states and 455 transitions. [2022-12-13 14:33:03,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 31 transitions, 195 flow [2022-12-13 14:33:03,307 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 31 transitions, 181 flow, removed 2 selfloop flow, removed 5 redundant places. [2022-12-13 14:33:03,308 INFO L231 Difference]: Finished difference. Result has 42 places, 31 transitions, 121 flow [2022-12-13 14:33:03,308 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=121, PETRI_PLACES=42, PETRI_TRANSITIONS=31} [2022-12-13 14:33:03,308 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 3 predicate places. [2022-12-13 14:33:03,308 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 31 transitions, 121 flow [2022-12-13 14:33:03,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 144.0) internal successors, (432), 3 states have internal predecessors, (432), 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) [2022-12-13 14:33:03,309 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:33:03,309 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 14:33:03,313 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77ed248-a657-47fd-b7ac-dfb2a3b80018/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 14:33:03,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77ed248-a657-47fd-b7ac-dfb2a3b80018/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:33:03,509 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2022-12-13 14:33:03,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:33:03,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1435127050, now seen corresponding path program 1 times [2022-12-13 14:33:03,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:33:03,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637685364] [2022-12-13 14:33:03,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:33:03,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:33:03,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:33:03,621 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:33:03,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:33:03,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637685364] [2022-12-13 14:33:03,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637685364] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:33:03,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [551217617] [2022-12-13 14:33:03,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:33:03,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:33:03,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77ed248-a657-47fd-b7ac-dfb2a3b80018/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:33:03,624 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77ed248-a657-47fd-b7ac-dfb2a3b80018/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:33:03,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77ed248-a657-47fd-b7ac-dfb2a3b80018/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 14:33:03,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:33:03,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 14:33:03,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:33:03,695 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 14:33:03,695 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:33:03,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [551217617] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:33:03,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 14:33:03,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [3] total 4 [2022-12-13 14:33:03,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132556866] [2022-12-13 14:33:03,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:33:03,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:33:03,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:33:03,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:33:03,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:33:03,700 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 308 [2022-12-13 14:33:03,701 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 31 transitions, 121 flow. Second operand has 3 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 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) [2022-12-13 14:33:03,701 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:33:03,701 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 308 [2022-12-13 14:33:03,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:33:03,810 INFO L130 PetriNetUnfolder]: 774/1220 cut-off events. [2022-12-13 14:33:03,810 INFO L131 PetriNetUnfolder]: For 676/676 co-relation queries the response was YES. [2022-12-13 14:33:03,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3219 conditions, 1220 events. 774/1220 cut-off events. For 676/676 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 4861 event pairs, 523 based on Foata normal form. 0/1220 useless extension candidates. Maximal degree in co-relation 3206. Up to 1220 conditions per place. [2022-12-13 14:33:03,813 INFO L137 encePairwiseOnDemand]: 303/308 looper letters, 25 selfloop transitions, 1 changer transitions 1/27 dead transitions. [2022-12-13 14:33:03,813 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 27 transitions, 155 flow [2022-12-13 14:33:03,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:33:03,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 14:33:03,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 454 transitions. [2022-12-13 14:33:03,815 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49134199134199136 [2022-12-13 14:33:03,815 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 454 transitions. [2022-12-13 14:33:03,815 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 454 transitions. [2022-12-13 14:33:03,815 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:33:03,815 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 454 transitions. [2022-12-13 14:33:03,816 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 151.33333333333334) internal successors, (454), 3 states have internal predecessors, (454), 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) [2022-12-13 14:33:03,816 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 308.0) internal successors, (1232), 4 states have internal predecessors, (1232), 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) [2022-12-13 14:33:03,817 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 308.0) internal successors, (1232), 4 states have internal predecessors, (1232), 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) [2022-12-13 14:33:03,817 INFO L175 Difference]: Start difference. First operand has 42 places, 31 transitions, 121 flow. Second operand 3 states and 454 transitions. [2022-12-13 14:33:03,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 27 transitions, 155 flow [2022-12-13 14:33:03,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 27 transitions, 154 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 14:33:03,818 INFO L231 Difference]: Finished difference. Result has 39 places, 26 transitions, 98 flow [2022-12-13 14:33:03,818 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=39, PETRI_TRANSITIONS=26} [2022-12-13 14:33:03,819 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 0 predicate places. [2022-12-13 14:33:03,819 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 26 transitions, 98 flow [2022-12-13 14:33:03,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 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) [2022-12-13 14:33:03,819 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:33:03,819 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:33:03,824 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77ed248-a657-47fd-b7ac-dfb2a3b80018/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 14:33:04,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77ed248-a657-47fd-b7ac-dfb2a3b80018/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:33:04,020 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2022-12-13 14:33:04,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:33:04,020 INFO L85 PathProgramCache]: Analyzing trace with hash -517558846, now seen corresponding path program 1 times [2022-12-13 14:33:04,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:33:04,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946911281] [2022-12-13 14:33:04,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:33:04,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:33:04,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:33:04,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:33:04,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:33:04,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946911281] [2022-12-13 14:33:04,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946911281] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:33:04,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:33:04,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 14:33:04,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004203902] [2022-12-13 14:33:04,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:33:04,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 14:33:04,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:33:04,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 14:33:04,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 14:33:04,098 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 308 [2022-12-13 14:33:04,099 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 26 transitions, 98 flow. Second operand has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 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) [2022-12-13 14:33:04,099 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:33:04,099 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 308 [2022-12-13 14:33:04,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:33:04,164 INFO L130 PetriNetUnfolder]: 338/568 cut-off events. [2022-12-13 14:33:04,165 INFO L131 PetriNetUnfolder]: For 512/512 co-relation queries the response was YES. [2022-12-13 14:33:04,165 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1484 conditions, 568 events. 338/568 cut-off events. For 512/512 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2007 event pairs, 207 based on Foata normal form. 112/680 useless extension candidates. Maximal degree in co-relation 1470. Up to 568 conditions per place. [2022-12-13 14:33:04,166 INFO L137 encePairwiseOnDemand]: 306/308 looper letters, 0 selfloop transitions, 0 changer transitions 24/24 dead transitions. [2022-12-13 14:33:04,167 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 24 transitions, 136 flow [2022-12-13 14:33:04,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:33:04,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 14:33:04,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 443 transitions. [2022-12-13 14:33:04,169 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47943722943722944 [2022-12-13 14:33:04,169 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 443 transitions. [2022-12-13 14:33:04,169 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 443 transitions. [2022-12-13 14:33:04,170 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:33:04,170 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 443 transitions. [2022-12-13 14:33:04,170 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 147.66666666666666) internal successors, (443), 3 states have internal predecessors, (443), 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) [2022-12-13 14:33:04,171 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 308.0) internal successors, (1232), 4 states have internal predecessors, (1232), 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) [2022-12-13 14:33:04,172 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 308.0) internal successors, (1232), 4 states have internal predecessors, (1232), 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) [2022-12-13 14:33:04,172 INFO L175 Difference]: Start difference. First operand has 39 places, 26 transitions, 98 flow. Second operand 3 states and 443 transitions. [2022-12-13 14:33:04,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 24 transitions, 136 flow [2022-12-13 14:33:04,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 24 transitions, 127 flow, removed 2 selfloop flow, removed 4 redundant places. [2022-12-13 14:33:04,172 INFO L231 Difference]: Finished difference. Result has 34 places, 0 transitions, 0 flow [2022-12-13 14:33:04,173 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=34, PETRI_TRANSITIONS=0} [2022-12-13 14:33:04,173 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, -5 predicate places. [2022-12-13 14:33:04,173 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 0 transitions, 0 flow [2022-12-13 14:33:04,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 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) [2022-12-13 14:33:04,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 25 remaining) [2022-12-13 14:33:04,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 25 remaining) [2022-12-13 14:33:04,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 25 remaining) [2022-12-13 14:33:04,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 25 remaining) [2022-12-13 14:33:04,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 25 remaining) [2022-12-13 14:33:04,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 25 remaining) [2022-12-13 14:33:04,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 25 remaining) [2022-12-13 14:33:04,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 25 remaining) [2022-12-13 14:33:04,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 25 remaining) [2022-12-13 14:33:04,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 25 remaining) [2022-12-13 14:33:04,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 25 remaining) [2022-12-13 14:33:04,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 25 remaining) [2022-12-13 14:33:04,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 25 remaining) [2022-12-13 14:33:04,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 25 remaining) [2022-12-13 14:33:04,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 25 remaining) [2022-12-13 14:33:04,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 25 remaining) [2022-12-13 14:33:04,177 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 25 remaining) [2022-12-13 14:33:04,177 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 25 remaining) [2022-12-13 14:33:04,177 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 25 remaining) [2022-12-13 14:33:04,177 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 25 remaining) [2022-12-13 14:33:04,177 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 25 remaining) [2022-12-13 14:33:04,177 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 25 remaining) [2022-12-13 14:33:04,177 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 25 remaining) [2022-12-13 14:33:04,177 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 25 remaining) [2022-12-13 14:33:04,177 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 25 remaining) [2022-12-13 14:33:04,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 14:33:04,177 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2022-12-13 14:33:04,181 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 14:33:04,182 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 14:33:04,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 02:33:04 BasicIcfg [2022-12-13 14:33:04,184 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 14:33:04,184 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 14:33:04,184 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 14:33:04,184 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 14:33:04,185 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:32:54" (3/4) ... [2022-12-13 14:33:04,187 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 14:33:04,190 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-12-13 14:33:04,190 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-12-13 14:33:04,190 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-12-13 14:33:04,193 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2022-12-13 14:33:04,193 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 14:33:04,193 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 14:33:04,193 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 14:33:04,216 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77ed248-a657-47fd-b7ac-dfb2a3b80018/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 14:33:04,216 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 14:33:04,217 INFO L158 Benchmark]: Toolchain (without parser) took 10462.08ms. Allocated memory was 127.9MB in the beginning and 255.9MB in the end (delta: 127.9MB). Free memory was 92.0MB in the beginning and 109.2MB in the end (delta: -17.2MB). Peak memory consumption was 112.9MB. Max. memory is 16.1GB. [2022-12-13 14:33:04,217 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 127.9MB. Free memory is still 69.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 14:33:04,217 INFO L158 Benchmark]: CACSL2BoogieTranslator took 185.17ms. Allocated memory is still 127.9MB. Free memory was 92.0MB in the beginning and 79.1MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 14:33:04,217 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.55ms. Allocated memory is still 127.9MB. Free memory was 79.1MB in the beginning and 76.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 14:33:04,217 INFO L158 Benchmark]: Boogie Preprocessor took 20.96ms. Allocated memory is still 127.9MB. Free memory was 76.9MB in the beginning and 75.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 14:33:04,218 INFO L158 Benchmark]: RCFGBuilder took 597.47ms. Allocated memory was 127.9MB in the beginning and 176.2MB in the end (delta: 48.2MB). Free memory was 75.2MB in the beginning and 126.4MB in the end (delta: -51.1MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. [2022-12-13 14:33:04,218 INFO L158 Benchmark]: TraceAbstraction took 9590.37ms. Allocated memory was 176.2MB in the beginning and 255.9MB in the end (delta: 79.7MB). Free memory was 125.3MB in the beginning and 112.3MB in the end (delta: 13.0MB). Peak memory consumption was 92.7MB. Max. memory is 16.1GB. [2022-12-13 14:33:04,218 INFO L158 Benchmark]: Witness Printer took 32.04ms. Allocated memory is still 255.9MB. Free memory was 112.3MB in the beginning and 109.2MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 14:33:04,219 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 127.9MB. Free memory is still 69.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 185.17ms. Allocated memory is still 127.9MB. Free memory was 92.0MB in the beginning and 79.1MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.55ms. Allocated memory is still 127.9MB. Free memory was 79.1MB in the beginning and 76.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.96ms. Allocated memory is still 127.9MB. Free memory was 76.9MB in the beginning and 75.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 597.47ms. Allocated memory was 127.9MB in the beginning and 176.2MB in the end (delta: 48.2MB). Free memory was 75.2MB in the beginning and 126.4MB in the end (delta: -51.1MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. * TraceAbstraction took 9590.37ms. Allocated memory was 176.2MB in the beginning and 255.9MB in the end (delta: 79.7MB). Free memory was 125.3MB in the beginning and 112.3MB in the end (delta: 13.0MB). Peak memory consumption was 92.7MB. Max. memory is 16.1GB. * Witness Printer took 32.04ms. Allocated memory is still 255.9MB. Free memory was 112.3MB in the beginning and 109.2MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.0s, 147 PlacesBefore, 39 PlacesAfterwards, 145 TransitionsBefore, 32 TransitionsAfterwards, 2332 CoEnabledTransitionPairs, 7 FixpointIterations, 76 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 14 TrivialYvCompositions, 0 ConcurrentYvCompositions, 5 ChoiceCompositions, 139 TotalNumberOfCompositions, 2268 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1862, independent: 1832, independent conditional: 0, independent unconditional: 1832, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1075, independent: 1063, independent conditional: 0, independent unconditional: 1063, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1862, independent: 769, independent conditional: 0, independent unconditional: 769, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 1075, unknown conditional: 0, unknown unconditional: 1075] , Statistics on independence cache: Total cache size (in pairs): 73, Positive cache size: 69, Positive conditional cache size: 0, Positive unconditional cache size: 69, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 59]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 59]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 75]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 75]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 120]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 120]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 207 locations, 25 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 9.5s, OverallIterations: 7, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 488 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 405 mSDsluCounter, 23 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 615 IncrementalHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 15 mSDtfsCounter, 615 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=143occurred in iteration=4, InterpolantAutomatonStates: 29, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 53 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 148 SizeOfPredicates, 2 NumberOfNonLiveVariables, 489 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 12 InterpolantComputations, 6 PerfectInterpolantSequences, 15/31 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 12 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 14:33:04,230 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77ed248-a657-47fd-b7ac-dfb2a3b80018/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE