./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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_4f9da3b5-a7d6-4cba-ae4b-83087d68a379/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f9da3b5-a7d6-4cba-ae4b-83087d68a379/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_4f9da3b5-a7d6-4cba-ae4b-83087d68a379/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f9da3b5-a7d6-4cba-ae4b-83087d68a379/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f9da3b5-a7d6-4cba-ae4b-83087d68a379/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f9da3b5-a7d6-4cba-ae4b-83087d68a379/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e280ea7002eb926faba3195da50aa743246f3289123bb9a1b445dc9aaf8e8f3d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 22:03:28,450 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 22:03:28,451 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 22:03:28,469 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 22:03:28,470 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 22:03:28,471 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 22:03:28,472 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 22:03:28,473 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 22:03:28,475 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 22:03:28,476 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 22:03:28,477 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 22:03:28,478 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 22:03:28,478 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 22:03:28,479 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 22:03:28,480 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 22:03:28,482 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 22:03:28,482 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 22:03:28,483 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 22:03:28,485 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 22:03:28,487 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 22:03:28,488 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 22:03:28,489 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 22:03:28,491 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 22:03:28,491 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 22:03:28,495 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 22:03:28,495 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 22:03:28,496 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 22:03:28,497 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 22:03:28,497 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 22:03:28,498 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 22:03:28,498 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 22:03:28,499 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 22:03:28,500 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 22:03:28,501 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 22:03:28,501 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 22:03:28,502 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 22:03:28,502 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 22:03:28,503 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 22:03:28,503 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 22:03:28,504 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 22:03:28,504 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 22:03:28,505 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f9da3b5-a7d6-4cba-ae4b-83087d68a379/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 22:03:28,525 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 22:03:28,526 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 22:03:28,526 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 22:03:28,526 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 22:03:28,527 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 22:03:28,527 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 22:03:28,528 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 22:03:28,528 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 22:03:28,528 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 22:03:28,528 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 22:03:28,529 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 22:03:28,529 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 22:03:28,529 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 22:03:28,529 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 22:03:28,529 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 22:03:28,529 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 22:03:28,530 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 22:03:28,530 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 22:03:28,530 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 22:03:28,530 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 22:03:28,530 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 22:03:28,531 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 22:03:28,531 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 22:03:28,531 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 22:03:28,531 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 22:03:28,531 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 22:03:28,531 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 22:03:28,532 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 22:03:28,532 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 22:03:28,532 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 22:03:28,532 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 22:03:28,532 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 22:03:28,532 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 22:03:28,533 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 22:03:28,533 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 22:03:28,533 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_4f9da3b5-a7d6-4cba-ae4b-83087d68a379/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f9da3b5-a7d6-4cba-ae4b-83087d68a379/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e280ea7002eb926faba3195da50aa743246f3289123bb9a1b445dc9aaf8e8f3d [2022-12-13 22:03:28,714 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 22:03:28,731 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 22:03:28,733 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 22:03:28,734 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 22:03:28,735 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 22:03:28,736 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f9da3b5-a7d6-4cba-ae4b-83087d68a379/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c [2022-12-13 22:03:31,277 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 22:03:31,420 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 22:03:31,420 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f9da3b5-a7d6-4cba-ae4b-83087d68a379/sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c [2022-12-13 22:03:31,425 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f9da3b5-a7d6-4cba-ae4b-83087d68a379/bin/uautomizer-uyxdKDjOR8/data/31906ba44/9ab32f23c95d461f86f9749ad04a3760/FLAGdb9ddfb0c [2022-12-13 22:03:31,437 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f9da3b5-a7d6-4cba-ae4b-83087d68a379/bin/uautomizer-uyxdKDjOR8/data/31906ba44/9ab32f23c95d461f86f9749ad04a3760 [2022-12-13 22:03:31,439 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 22:03:31,441 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 22:03:31,441 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 22:03:31,442 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 22:03:31,444 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 22:03:31,445 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:03:31" (1/1) ... [2022-12-13 22:03:31,446 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19de103c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:03:31, skipping insertion in model container [2022-12-13 22:03:31,446 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:03:31" (1/1) ... [2022-12-13 22:03:31,452 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 22:03:31,468 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 22:03:31,596 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:03:31,598 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:03:31,603 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:03:31,605 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:03:31,608 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:03:31,609 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:03:31,621 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_4f9da3b5-a7d6-4cba-ae4b-83087d68a379/sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c[3182,3195] [2022-12-13 22:03:31,630 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:03:31,640 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 22:03:31,652 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:03:31,653 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:03:31,656 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:03:31,657 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:03:31,659 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:03:31,660 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:03:31,667 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_4f9da3b5-a7d6-4cba-ae4b-83087d68a379/sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c[3182,3195] [2022-12-13 22:03:31,671 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:03:31,683 INFO L208 MainTranslator]: Completed translation [2022-12-13 22:03:31,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:03:31 WrapperNode [2022-12-13 22:03:31,683 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 22:03:31,684 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 22:03:31,684 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 22:03:31,684 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 22:03:31,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:03:31" (1/1) ... [2022-12-13 22:03:31,699 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:03:31" (1/1) ... [2022-12-13 22:03:31,730 INFO L138 Inliner]: procedures = 28, calls = 74, calls flagged for inlining = 18, calls inlined = 26, statements flattened = 362 [2022-12-13 22:03:31,731 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 22:03:31,732 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 22:03:31,732 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 22:03:31,732 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 22:03:31,739 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:03:31" (1/1) ... [2022-12-13 22:03:31,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:03:31" (1/1) ... [2022-12-13 22:03:31,744 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:03:31" (1/1) ... [2022-12-13 22:03:31,744 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:03:31" (1/1) ... [2022-12-13 22:03:31,755 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:03:31" (1/1) ... [2022-12-13 22:03:31,760 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:03:31" (1/1) ... [2022-12-13 22:03:31,762 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:03:31" (1/1) ... [2022-12-13 22:03:31,764 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:03:31" (1/1) ... [2022-12-13 22:03:31,768 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 22:03:31,769 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 22:03:31,769 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 22:03:31,769 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 22:03:31,770 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:03:31" (1/1) ... [2022-12-13 22:03:31,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 22:03:31,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f9da3b5-a7d6-4cba-ae4b-83087d68a379/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:03:31,799 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f9da3b5-a7d6-4cba-ae4b-83087d68a379/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 22:03:31,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f9da3b5-a7d6-4cba-ae4b-83087d68a379/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 22:03:31,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 22:03:31,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 22:03:31,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 22:03:31,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 22:03:31,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 22:03:31,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-13 22:03:31,836 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-13 22:03:31,836 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-13 22:03:31,836 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-13 22:03:31,836 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-13 22:03:31,836 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-13 22:03:31,836 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-13 22:03:31,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 22:03:31,837 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 22:03:31,837 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 22:03:31,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 22:03:31,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 22:03:31,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 22:03:31,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 22:03:31,839 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 22:03:31,925 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 22:03:31,927 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 22:03:32,345 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 22:03:32,485 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 22:03:32,486 INFO L300 CfgBuilder]: Removed 7 assume(true) statements. [2022-12-13 22:03:32,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:03:32 BoogieIcfgContainer [2022-12-13 22:03:32,488 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 22:03:32,491 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 22:03:32,491 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 22:03:32,495 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 22:03:32,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 10:03:31" (1/3) ... [2022-12-13 22:03:32,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48e02746 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 10:03:32, skipping insertion in model container [2022-12-13 22:03:32,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:03:31" (2/3) ... [2022-12-13 22:03:32,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48e02746 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 10:03:32, skipping insertion in model container [2022-12-13 22:03:32,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:03:32" (3/3) ... [2022-12-13 22:03:32,498 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-dot-product-alt.wvr.c [2022-12-13 22:03:32,507 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 22:03:32,516 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 22:03:32,516 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 22:03:32,516 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 22:03:32,589 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-13 22:03:32,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 327 places, 352 transitions, 728 flow [2022-12-13 22:03:32,722 INFO L130 PetriNetUnfolder]: 35/349 cut-off events. [2022-12-13 22:03:32,723 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 22:03:32,729 INFO L83 FinitePrefix]: Finished finitePrefix Result has 362 conditions, 349 events. 35/349 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 667 event pairs, 0 based on Foata normal form. 0/313 useless extension candidates. Maximal degree in co-relation 280. Up to 2 conditions per place. [2022-12-13 22:03:32,730 INFO L82 GeneralOperation]: Start removeDead. Operand has 327 places, 352 transitions, 728 flow [2022-12-13 22:03:32,737 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 313 places, 338 transitions, 694 flow [2022-12-13 22:03:32,741 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 22:03:32,751 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 313 places, 338 transitions, 694 flow [2022-12-13 22:03:32,754 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 313 places, 338 transitions, 694 flow [2022-12-13 22:03:32,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 313 places, 338 transitions, 694 flow [2022-12-13 22:03:32,817 INFO L130 PetriNetUnfolder]: 35/338 cut-off events. [2022-12-13 22:03:32,817 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 22:03:32,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 351 conditions, 338 events. 35/338 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 666 event pairs, 0 based on Foata normal form. 0/303 useless extension candidates. Maximal degree in co-relation 280. Up to 2 conditions per place. [2022-12-13 22:03:32,824 INFO L119 LiptonReduction]: Number of co-enabled transitions 13038 [2022-12-13 22:03:42,573 INFO L134 LiptonReduction]: Checked pairs total: 14041 [2022-12-13 22:03:42,573 INFO L136 LiptonReduction]: Total number of compositions: 375 [2022-12-13 22:03:42,585 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 22:03:42,590 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;@6c25b7d7, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 22:03:42,591 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-13 22:03:42,599 INFO L130 PetriNetUnfolder]: 10/40 cut-off events. [2022-12-13 22:03:42,599 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 22:03:42,599 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:03:42,600 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:03:42,600 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 22:03:42,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:03:42,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1617577402, now seen corresponding path program 1 times [2022-12-13 22:03:42,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:03:42,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005521318] [2022-12-13 22:03:42,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:03:42,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:03:42,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:03:43,095 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 22:03:43,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:03:43,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005521318] [2022-12-13 22:03:43,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005521318] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:03:43,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:03:43,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 22:03:43,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764147152] [2022-12-13 22:03:43,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:03:43,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 22:03:43,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:03:43,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 22:03:43,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 22:03:43,218 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 307 out of 727 [2022-12-13 22:03:43,222 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 41 transitions, 100 flow. Second operand has 4 states, 4 states have (on average 311.75) internal successors, (1247), 4 states have internal predecessors, (1247), 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 22:03:43,222 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:03:43,223 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 307 of 727 [2022-12-13 22:03:43,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:03:43,498 INFO L130 PetriNetUnfolder]: 1392/1858 cut-off events. [2022-12-13 22:03:43,498 INFO L131 PetriNetUnfolder]: For 79/79 co-relation queries the response was YES. [2022-12-13 22:03:43,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3831 conditions, 1858 events. 1392/1858 cut-off events. For 79/79 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 7135 event pairs, 721 based on Foata normal form. 0/1187 useless extension candidates. Maximal degree in co-relation 3413. Up to 1821 conditions per place. [2022-12-13 22:03:43,506 INFO L137 encePairwiseOnDemand]: 720/727 looper letters, 35 selfloop transitions, 4 changer transitions 7/49 dead transitions. [2022-12-13 22:03:43,506 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 49 transitions, 208 flow [2022-12-13 22:03:43,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 22:03:43,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 22:03:43,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1276 transitions. [2022-12-13 22:03:43,521 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43878954607977994 [2022-12-13 22:03:43,521 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1276 transitions. [2022-12-13 22:03:43,522 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1276 transitions. [2022-12-13 22:03:43,524 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:03:43,526 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1276 transitions. [2022-12-13 22:03:43,531 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 319.0) internal successors, (1276), 4 states have internal predecessors, (1276), 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 22:03:43,538 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 727.0) internal successors, (3635), 5 states have internal predecessors, (3635), 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 22:03:43,539 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 727.0) internal successors, (3635), 5 states have internal predecessors, (3635), 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 22:03:43,541 INFO L175 Difference]: Start difference. First operand has 41 places, 41 transitions, 100 flow. Second operand 4 states and 1276 transitions. [2022-12-13 22:03:43,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 49 transitions, 208 flow [2022-12-13 22:03:43,545 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 49 transitions, 196 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-12-13 22:03:43,546 INFO L231 Difference]: Finished difference. Result has 40 places, 42 transitions, 110 flow [2022-12-13 22:03:43,547 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=727, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=110, PETRI_PLACES=40, PETRI_TRANSITIONS=42} [2022-12-13 22:03:43,550 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, -1 predicate places. [2022-12-13 22:03:43,550 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 42 transitions, 110 flow [2022-12-13 22:03:43,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 311.75) internal successors, (1247), 4 states have internal predecessors, (1247), 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 22:03:43,551 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:03:43,551 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:03:43,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 22:03:43,551 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 22:03:43,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:03:43,552 INFO L85 PathProgramCache]: Analyzing trace with hash 502813979, now seen corresponding path program 1 times [2022-12-13 22:03:43,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:03:43,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109943905] [2022-12-13 22:03:43,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:03:43,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:03:43,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:03:43,671 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 22:03:43,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:03:43,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109943905] [2022-12-13 22:03:43,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109943905] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 22:03:43,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [15728657] [2022-12-13 22:03:43,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:03:43,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 22:03:43,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f9da3b5-a7d6-4cba-ae4b-83087d68a379/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:03:43,673 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f9da3b5-a7d6-4cba-ae4b-83087d68a379/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 22:03:43,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f9da3b5-a7d6-4cba-ae4b-83087d68a379/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 22:03:43,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:03:43,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 22:03:43,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:03:43,826 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 22:03:43,827 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 22:03:43,864 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 22:03:43,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [15728657] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-13 22:03:43,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-13 22:03:43,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 4] total 9 [2022-12-13 22:03:43,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967753241] [2022-12-13 22:03:43,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:03:43,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 22:03:43,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:03:43,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 22:03:43,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-12-13 22:03:43,992 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 299 out of 727 [2022-12-13 22:03:43,993 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 42 transitions, 110 flow. Second operand has 5 states, 5 states have (on average 303.4) internal successors, (1517), 5 states have internal predecessors, (1517), 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 22:03:43,993 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:03:43,993 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 299 of 727 [2022-12-13 22:03:43,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:03:44,283 INFO L130 PetriNetUnfolder]: 1577/2098 cut-off events. [2022-12-13 22:03:44,283 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-13 22:03:44,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4266 conditions, 2098 events. 1577/2098 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 7616 event pairs, 481 based on Foata normal form. 0/1410 useless extension candidates. Maximal degree in co-relation 4244. Up to 1314 conditions per place. [2022-12-13 22:03:44,289 INFO L137 encePairwiseOnDemand]: 720/727 looper letters, 50 selfloop transitions, 6 changer transitions 0/58 dead transitions. [2022-12-13 22:03:44,290 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 58 transitions, 256 flow [2022-12-13 22:03:44,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 22:03:44,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 22:03:44,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1551 transitions. [2022-12-13 22:03:44,293 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4266850068775791 [2022-12-13 22:03:44,293 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1551 transitions. [2022-12-13 22:03:44,293 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1551 transitions. [2022-12-13 22:03:44,293 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:03:44,293 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1551 transitions. [2022-12-13 22:03:44,296 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 310.2) internal successors, (1551), 5 states have internal predecessors, (1551), 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 22:03:44,299 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 727.0) internal successors, (4362), 6 states have internal predecessors, (4362), 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 22:03:44,301 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 727.0) internal successors, (4362), 6 states have internal predecessors, (4362), 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 22:03:44,301 INFO L175 Difference]: Start difference. First operand has 40 places, 42 transitions, 110 flow. Second operand 5 states and 1551 transitions. [2022-12-13 22:03:44,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 58 transitions, 256 flow [2022-12-13 22:03:44,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 58 transitions, 250 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-12-13 22:03:44,302 INFO L231 Difference]: Finished difference. Result has 43 places, 44 transitions, 135 flow [2022-12-13 22:03:44,302 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=727, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=135, PETRI_PLACES=43, PETRI_TRANSITIONS=44} [2022-12-13 22:03:44,303 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, 2 predicate places. [2022-12-13 22:03:44,303 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 44 transitions, 135 flow [2022-12-13 22:03:44,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 303.4) internal successors, (1517), 5 states have internal predecessors, (1517), 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 22:03:44,303 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:03:44,304 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:03:44,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f9da3b5-a7d6-4cba-ae4b-83087d68a379/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 22:03:44,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f9da3b5-a7d6-4cba-ae4b-83087d68a379/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-12-13 22:03:44,505 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 22:03:44,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:03:44,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1113453881, now seen corresponding path program 1 times [2022-12-13 22:03:44,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:03:44,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123972332] [2022-12-13 22:03:44,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:03:44,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:03:44,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:03:44,603 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 22:03:44,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:03:44,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123972332] [2022-12-13 22:03:44,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123972332] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:03:44,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:03:44,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 22:03:44,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869991668] [2022-12-13 22:03:44,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:03:44,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 22:03:44,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:03:44,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 22:03:44,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 22:03:44,622 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 313 out of 727 [2022-12-13 22:03:44,624 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 44 transitions, 135 flow. Second operand has 4 states, 4 states have (on average 319.25) internal successors, (1277), 4 states have internal predecessors, (1277), 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 22:03:44,625 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:03:44,625 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 313 of 727 [2022-12-13 22:03:44,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:03:44,971 INFO L130 PetriNetUnfolder]: 1663/2243 cut-off events. [2022-12-13 22:03:44,971 INFO L131 PetriNetUnfolder]: For 350/454 co-relation queries the response was YES. [2022-12-13 22:03:44,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5069 conditions, 2243 events. 1663/2243 cut-off events. For 350/454 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 8917 event pairs, 750 based on Foata normal form. 162/1713 useless extension candidates. Maximal degree in co-relation 5040. Up to 1710 conditions per place. [2022-12-13 22:03:44,978 INFO L137 encePairwiseOnDemand]: 724/727 looper letters, 39 selfloop transitions, 0 changer transitions 31/73 dead transitions. [2022-12-13 22:03:44,978 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 73 transitions, 337 flow [2022-12-13 22:03:44,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 22:03:44,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 22:03:44,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1319 transitions. [2022-12-13 22:03:44,980 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45357634112792294 [2022-12-13 22:03:44,980 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1319 transitions. [2022-12-13 22:03:44,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1319 transitions. [2022-12-13 22:03:44,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:03:44,981 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1319 transitions. [2022-12-13 22:03:44,983 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 329.75) internal successors, (1319), 4 states have internal predecessors, (1319), 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 22:03:44,986 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 727.0) internal successors, (3635), 5 states have internal predecessors, (3635), 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 22:03:44,987 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 727.0) internal successors, (3635), 5 states have internal predecessors, (3635), 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 22:03:44,987 INFO L175 Difference]: Start difference. First operand has 43 places, 44 transitions, 135 flow. Second operand 4 states and 1319 transitions. [2022-12-13 22:03:44,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 73 transitions, 337 flow [2022-12-13 22:03:44,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 73 transitions, 330 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-12-13 22:03:44,989 INFO L231 Difference]: Finished difference. Result has 46 places, 42 transitions, 123 flow [2022-12-13 22:03:44,990 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=727, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=123, PETRI_PLACES=46, PETRI_TRANSITIONS=42} [2022-12-13 22:03:44,990 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, 5 predicate places. [2022-12-13 22:03:44,990 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 42 transitions, 123 flow [2022-12-13 22:03:44,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 319.25) internal successors, (1277), 4 states have internal predecessors, (1277), 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 22:03:44,991 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:03:44,991 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:03:44,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 22:03:44,991 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 22:03:44,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:03:44,992 INFO L85 PathProgramCache]: Analyzing trace with hash 326868925, now seen corresponding path program 1 times [2022-12-13 22:03:44,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:03:44,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207734392] [2022-12-13 22:03:44,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:03:44,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:03:45,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:03:45,138 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 22:03:45,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:03:45,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207734392] [2022-12-13 22:03:45,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207734392] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 22:03:45,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1294638793] [2022-12-13 22:03:45,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:03:45,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 22:03:45,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f9da3b5-a7d6-4cba-ae4b-83087d68a379/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:03:45,139 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f9da3b5-a7d6-4cba-ae4b-83087d68a379/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 22:03:45,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f9da3b5-a7d6-4cba-ae4b-83087d68a379/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 22:03:45,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:03:45,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 22:03:45,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:03:45,326 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 22:03:45,326 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 22:03:45,377 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 22:03:45,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1294638793] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-13 22:03:45,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-13 22:03:45,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 6] total 13 [2022-12-13 22:03:45,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435582311] [2022-12-13 22:03:45,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:03:45,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 22:03:45,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:03:45,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 22:03:45,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2022-12-13 22:03:45,548 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 293 out of 727 [2022-12-13 22:03:45,551 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 42 transitions, 123 flow. Second operand has 7 states, 7 states have (on average 297.0) internal successors, (2079), 7 states have internal predecessors, (2079), 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 22:03:45,551 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:03:45,551 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 293 of 727 [2022-12-13 22:03:45,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:03:46,005 INFO L130 PetriNetUnfolder]: 1847/2591 cut-off events. [2022-12-13 22:03:46,005 INFO L131 PetriNetUnfolder]: For 788/970 co-relation queries the response was YES. [2022-12-13 22:03:46,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5913 conditions, 2591 events. 1847/2591 cut-off events. For 788/970 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 10655 event pairs, 318 based on Foata normal form. 182/2309 useless extension candidates. Maximal degree in co-relation 5905. Up to 1442 conditions per place. [2022-12-13 22:03:46,015 INFO L137 encePairwiseOnDemand]: 717/727 looper letters, 85 selfloop transitions, 15 changer transitions 0/101 dead transitions. [2022-12-13 22:03:46,015 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 101 transitions, 491 flow [2022-12-13 22:03:46,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 22:03:46,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 22:03:46,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2441 transitions. [2022-12-13 22:03:46,019 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.41970426409903716 [2022-12-13 22:03:46,019 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 2441 transitions. [2022-12-13 22:03:46,019 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 2441 transitions. [2022-12-13 22:03:46,020 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:03:46,020 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 2441 transitions. [2022-12-13 22:03:46,023 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 305.125) internal successors, (2441), 8 states have internal predecessors, (2441), 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 22:03:46,028 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 727.0) internal successors, (6543), 9 states have internal predecessors, (6543), 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 22:03:46,030 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 727.0) internal successors, (6543), 9 states have internal predecessors, (6543), 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 22:03:46,030 INFO L175 Difference]: Start difference. First operand has 46 places, 42 transitions, 123 flow. Second operand 8 states and 2441 transitions. [2022-12-13 22:03:46,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 101 transitions, 491 flow [2022-12-13 22:03:46,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 101 transitions, 475 flow, removed 8 selfloop flow, removed 2 redundant places. [2022-12-13 22:03:46,033 INFO L231 Difference]: Finished difference. Result has 52 places, 51 transitions, 202 flow [2022-12-13 22:03:46,033 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=727, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=202, PETRI_PLACES=52, PETRI_TRANSITIONS=51} [2022-12-13 22:03:46,033 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, 11 predicate places. [2022-12-13 22:03:46,033 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 51 transitions, 202 flow [2022-12-13 22:03:46,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 297.0) internal successors, (2079), 7 states have internal predecessors, (2079), 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 22:03:46,034 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:03:46,034 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:03:46,040 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f9da3b5-a7d6-4cba-ae4b-83087d68a379/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 22:03:46,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f9da3b5-a7d6-4cba-ae4b-83087d68a379/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 22:03:46,235 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 22:03:46,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:03:46,236 INFO L85 PathProgramCache]: Analyzing trace with hash -271576556, now seen corresponding path program 1 times [2022-12-13 22:03:46,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:03:46,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781916581] [2022-12-13 22:03:46,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:03:46,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:03:46,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:03:46,394 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 22:03:46,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:03:46,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781916581] [2022-12-13 22:03:46,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781916581] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:03:46,395 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:03:46,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 22:03:46,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618454170] [2022-12-13 22:03:46,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:03:46,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 22:03:46,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:03:46,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 22:03:46,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 22:03:46,422 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 317 out of 727 [2022-12-13 22:03:46,423 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 51 transitions, 202 flow. Second operand has 4 states, 4 states have (on average 323.75) internal successors, (1295), 4 states have internal predecessors, (1295), 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 22:03:46,423 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:03:46,423 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 317 of 727 [2022-12-13 22:03:46,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:03:46,873 INFO L130 PetriNetUnfolder]: 2245/3264 cut-off events. [2022-12-13 22:03:46,873 INFO L131 PetriNetUnfolder]: For 2306/2916 co-relation queries the response was YES. [2022-12-13 22:03:46,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9516 conditions, 3264 events. 2245/3264 cut-off events. For 2306/2916 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 15149 event pairs, 1344 based on Foata normal form. 689/3551 useless extension candidates. Maximal degree in co-relation 9506. Up to 2244 conditions per place. [2022-12-13 22:03:46,883 INFO L137 encePairwiseOnDemand]: 722/727 looper letters, 46 selfloop transitions, 3 changer transitions 30/84 dead transitions. [2022-12-13 22:03:46,883 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 84 transitions, 473 flow [2022-12-13 22:03:46,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 22:03:46,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 22:03:46,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1649 transitions. [2022-12-13 22:03:46,885 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45364511691884457 [2022-12-13 22:03:46,885 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1649 transitions. [2022-12-13 22:03:46,886 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1649 transitions. [2022-12-13 22:03:46,886 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:03:46,886 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1649 transitions. [2022-12-13 22:03:46,888 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 329.8) internal successors, (1649), 5 states have internal predecessors, (1649), 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 22:03:46,891 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 727.0) internal successors, (4362), 6 states have internal predecessors, (4362), 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 22:03:46,892 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 727.0) internal successors, (4362), 6 states have internal predecessors, (4362), 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 22:03:46,892 INFO L175 Difference]: Start difference. First operand has 52 places, 51 transitions, 202 flow. Second operand 5 states and 1649 transitions. [2022-12-13 22:03:46,892 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 84 transitions, 473 flow [2022-12-13 22:03:46,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 84 transitions, 463 flow, removed 2 selfloop flow, removed 3 redundant places. [2022-12-13 22:03:46,900 INFO L231 Difference]: Finished difference. Result has 55 places, 52 transitions, 211 flow [2022-12-13 22:03:46,900 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=727, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=211, PETRI_PLACES=55, PETRI_TRANSITIONS=52} [2022-12-13 22:03:46,900 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, 14 predicate places. [2022-12-13 22:03:46,900 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 52 transitions, 211 flow [2022-12-13 22:03:46,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 323.75) internal successors, (1295), 4 states have internal predecessors, (1295), 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 22:03:46,901 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:03:46,901 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:03:46,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 22:03:46,901 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 22:03:46,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:03:46,901 INFO L85 PathProgramCache]: Analyzing trace with hash -2125832366, now seen corresponding path program 1 times [2022-12-13 22:03:46,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:03:46,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464348913] [2022-12-13 22:03:46,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:03:46,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:03:46,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:03:47,040 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 22:03:47,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:03:47,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464348913] [2022-12-13 22:03:47,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464348913] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:03:47,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:03:47,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 22:03:47,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111713521] [2022-12-13 22:03:47,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:03:47,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 22:03:47,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:03:47,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 22:03:47,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 22:03:47,098 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 309 out of 727 [2022-12-13 22:03:47,100 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 52 transitions, 211 flow. Second operand has 4 states, 4 states have (on average 316.25) internal successors, (1265), 4 states have internal predecessors, (1265), 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 22:03:47,100 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:03:47,100 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 309 of 727 [2022-12-13 22:03:47,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:03:47,687 INFO L130 PetriNetUnfolder]: 2860/4241 cut-off events. [2022-12-13 22:03:47,688 INFO L131 PetriNetUnfolder]: For 3304/4135 co-relation queries the response was YES. [2022-12-13 22:03:47,694 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12182 conditions, 4241 events. 2860/4241 cut-off events. For 3304/4135 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 21467 event pairs, 1760 based on Foata normal form. 1096/4846 useless extension candidates. Maximal degree in co-relation 12170. Up to 2247 conditions per place. [2022-12-13 22:03:47,706 INFO L137 encePairwiseOnDemand]: 718/727 looper letters, 41 selfloop transitions, 7 changer transitions 68/121 dead transitions. [2022-12-13 22:03:47,707 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 121 transitions, 686 flow [2022-12-13 22:03:47,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 22:03:47,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 22:03:47,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1641 transitions. [2022-12-13 22:03:47,709 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4514442916093535 [2022-12-13 22:03:47,709 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1641 transitions. [2022-12-13 22:03:47,709 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1641 transitions. [2022-12-13 22:03:47,710 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:03:47,710 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1641 transitions. [2022-12-13 22:03:47,712 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 328.2) internal successors, (1641), 5 states have internal predecessors, (1641), 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 22:03:47,715 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 727.0) internal successors, (4362), 6 states have internal predecessors, (4362), 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 22:03:47,715 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 727.0) internal successors, (4362), 6 states have internal predecessors, (4362), 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 22:03:47,716 INFO L175 Difference]: Start difference. First operand has 55 places, 52 transitions, 211 flow. Second operand 5 states and 1641 transitions. [2022-12-13 22:03:47,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 121 transitions, 686 flow [2022-12-13 22:03:47,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 121 transitions, 677 flow, removed 2 selfloop flow, removed 3 redundant places. [2022-12-13 22:03:47,732 INFO L231 Difference]: Finished difference. Result has 58 places, 53 transitions, 245 flow [2022-12-13 22:03:47,732 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=727, PETRI_DIFFERENCE_MINUEND_FLOW=203, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=245, PETRI_PLACES=58, PETRI_TRANSITIONS=53} [2022-12-13 22:03:47,732 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, 17 predicate places. [2022-12-13 22:03:47,732 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 53 transitions, 245 flow [2022-12-13 22:03:47,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 316.25) internal successors, (1265), 4 states have internal predecessors, (1265), 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 22:03:47,733 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:03:47,733 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:03:47,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 22:03:47,733 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 22:03:47,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:03:47,733 INFO L85 PathProgramCache]: Analyzing trace with hash -2117860788, now seen corresponding path program 1 times [2022-12-13 22:03:47,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:03:47,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022671969] [2022-12-13 22:03:47,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:03:47,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:03:47,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:03:49,571 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 22:03:49,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:03:49,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022671969] [2022-12-13 22:03:49,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022671969] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 22:03:49,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1803083281] [2022-12-13 22:03:49,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:03:49,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 22:03:49,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f9da3b5-a7d6-4cba-ae4b-83087d68a379/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:03:49,572 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f9da3b5-a7d6-4cba-ae4b-83087d68a379/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 22:03:49,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f9da3b5-a7d6-4cba-ae4b-83087d68a379/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 22:03:49,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:03:49,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 95 conjunts are in the unsatisfiable core [2022-12-13 22:03:49,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:03:49,768 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 50 [2022-12-13 22:03:49,890 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 22:03:49,956 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-13 22:03:49,957 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-12-13 22:03:50,063 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-13 22:03:50,132 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 22:03:50,140 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-13 22:03:50,147 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-13 22:03:50,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:03:50,262 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 54 [2022-12-13 22:03:50,270 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 22:03:50,277 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 22:03:50,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:03:50,527 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 43 [2022-12-13 22:03:50,536 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 22:03:50,543 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-12-13 22:03:50,752 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 34 [2022-12-13 22:03:50,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:03:50,759 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 32 [2022-12-13 22:03:50,766 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 22:03:51,588 INFO L321 Elim1Store]: treesize reduction 161, result has 29.7 percent of original size [2022-12-13 22:03:51,589 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 15 case distinctions, treesize of input 191 treesize of output 150 [2022-12-13 22:03:51,602 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 22:03:51,602 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 145 treesize of output 113 [2022-12-13 22:03:51,618 INFO L321 Elim1Store]: treesize reduction 30, result has 18.9 percent of original size [2022-12-13 22:03:51,618 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 125 treesize of output 91 [2022-12-13 22:03:51,706 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 22:03:51,706 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 22:03:53,154 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse12 (* |c_thread1Thread1of1ForFork1_~i~0#1| 4))) (let ((.cse7 (+ .cse12 c_~A~0.offset))) (and (forall ((v_ArrVal_520 (Array Int Int))) (let ((.cse13 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_520))) (or (forall ((v_ArrVal_524 (Array Int Int)) (v_ArrVal_523 (Array Int Int)) (v_ArrVal_519 (Array Int Int)) (~B~0.offset Int) (~B~0.base Int) (v_ArrVal_522 (Array Int Int)) (v_ArrVal_521 (Array Int Int))) (let ((.cse2 (store .cse13 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_523))) (let ((.cse10 (select .cse2 ~B~0.base))) (let ((.cse0 (select .cse10 (+ .cse12 ~B~0.offset)))) (or (not (<= 0 .cse0)) (< c_~maxB~0 (+ .cse0 1)) (forall ((|thread3Thread1of1ForFork0_~i~2#1| Int)) (let ((.cse6 (select .cse2 c_~A~0.base)) (.cse11 (* |thread3Thread1of1ForFork0_~i~2#1| 4))) (let ((.cse1 (select .cse6 (+ c_~A~0.offset .cse11))) (.cse9 (select .cse10 (+ .cse11 ~B~0.offset)))) (or (not (< .cse1 c_~maxA~0)) (not (<= 0 .cse1)) (let ((.cse3 (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_521) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_524) c_~mult~0.base)) (.cse5 (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_519) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_522) c_~mult~0.base))) (< (+ (let ((.cse4 (+ (* (select .cse6 .cse7) 4) c_~mult~0.offset))) (select (select .cse2 (select .cse3 .cse4)) (+ (* .cse0 4) (select .cse5 .cse4)))) c_~res1~0) (+ c_~res2~0 (let ((.cse8 (+ (* .cse1 4) c_~mult~0.offset))) (select (select .cse2 (select .cse3 .cse8)) (+ (* 4 .cse9) (select .cse5 .cse8)))) 1))) (not (< .cse9 c_~maxB~0)) (not (<= 0 .cse9))))))))))) (< c_~maxA~0 (+ (select (select .cse13 c_~A~0.base) .cse7) 1))))) (forall ((v_ArrVal_520 (Array Int Int))) (let ((.cse25 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_520))) (or (forall ((v_ArrVal_524 (Array Int Int)) (v_ArrVal_523 (Array Int Int)) (v_ArrVal_519 (Array Int Int)) (~B~0.offset Int) (~B~0.base Int) (v_ArrVal_522 (Array Int Int)) (v_ArrVal_521 (Array Int Int))) (let ((.cse16 (store .cse25 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_523))) (let ((.cse23 (select .cse16 ~B~0.base))) (let ((.cse21 (select .cse23 (+ .cse12 ~B~0.offset)))) (or (forall ((|thread3Thread1of1ForFork0_~i~2#1| Int)) (let ((.cse22 (select .cse16 c_~A~0.base)) (.cse24 (* |thread3Thread1of1ForFork0_~i~2#1| 4))) (let ((.cse14 (select .cse22 (+ c_~A~0.offset .cse24))) (.cse15 (select .cse23 (+ .cse24 ~B~0.offset)))) (or (not (< .cse14 c_~maxA~0)) (not (<= 0 .cse14)) (not (< .cse15 c_~maxB~0)) (let ((.cse17 (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_521) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_524) c_~mult~0.base)) (.cse19 (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_519) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_522) c_~mult~0.base))) (<= (+ c_~res2~0 (let ((.cse18 (+ (* .cse14 4) c_~mult~0.offset))) (select (select .cse16 (select .cse17 .cse18)) (+ (* 4 .cse15) (select .cse19 .cse18))))) (+ (let ((.cse20 (+ (* (select .cse22 .cse7) 4) c_~mult~0.offset))) (select (select .cse16 (select .cse17 .cse20)) (+ (* .cse21 4) (select .cse19 .cse20)))) c_~res1~0))) (not (<= 0 .cse15)))))) (not (<= 0 .cse21)) (< c_~maxB~0 (+ .cse21 1))))))) (< c_~maxA~0 (+ (select (select .cse25 c_~A~0.base) .cse7) 1)))))))) is different from false [2022-12-13 22:03:56,188 WARN L837 $PredicateComparison]: unable to prove that (and (forall ((|thread1Thread1of1ForFork1_~i~0#1| Int) (~B~0.base Int) (v_ArrVal_520 (Array Int Int)) (v_ArrVal_522 (Array Int Int)) (v_ArrVal_521 (Array Int Int)) (~A~0.offset Int) (v_ArrVal_524 (Array Int Int)) (v_ArrVal_523 (Array Int Int)) (|thread3Thread1of1ForFork0_~i~2#1| Int) (v_ArrVal_517 (Array Int Int)) (v_ArrVal_516 (Array Int Int)) (v_ArrVal_519 (Array Int Int)) (v_ArrVal_518 (Array Int Int)) (~B~0.offset Int)) (let ((.cse3 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_516))) (let ((.cse5 (store .cse3 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_520))) (let ((.cse6 (store .cse5 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_523))) (let ((.cse12 (* 4 |thread1Thread1of1ForFork1_~i~0#1|)) (.cse11 (select .cse6 c_~A~0.base)) (.cse13 (select .cse6 ~B~0.base)) (.cse14 (* |thread3Thread1of1ForFork0_~i~2#1| 4))) (let ((.cse2 (select .cse13 (+ .cse14 ~B~0.offset))) (.cse1 (select .cse11 (+ .cse14 ~A~0.offset))) (.cse0 (select .cse13 (+ .cse12 ~B~0.offset))) (.cse4 (+ .cse12 ~A~0.offset))) (or (not (<= 0 .cse0)) (< |c_ULTIMATE.start_main_~i~3#1| (+ .cse1 1)) (not (< .cse2 c_~maxB~0)) (< c_~maxB~0 (+ .cse0 1)) (< (select (select .cse3 c_~A~0.base) .cse4) 0) (not (<= 0 .cse1)) (not (<= 0 .cse2)) (< |c_ULTIMATE.start_main_~i~3#1| (+ (select (select .cse5 c_~A~0.base) .cse4) 1)) (let ((.cse7 (select (store (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_518) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_521) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_524) c_~mult~0.base)) (.cse9 (select (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_517) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_519) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_522) c_~mult~0.base))) (<= (+ c_~res2~0 (let ((.cse8 (+ c_~mult~0.offset (* .cse1 4)))) (select (select .cse6 (select .cse7 .cse8)) (+ (* .cse2 4) (select .cse9 .cse8))))) (+ c_~res1~0 (let ((.cse10 (+ (* (select .cse11 .cse4) 4) c_~mult~0.offset))) (select (select .cse6 (select .cse7 .cse10)) (+ (* .cse0 4) (select .cse9 .cse10)))))))))))))) (forall ((|thread1Thread1of1ForFork1_~i~0#1| Int) (~B~0.base Int) (v_ArrVal_520 (Array Int Int)) (v_ArrVal_522 (Array Int Int)) (v_ArrVal_521 (Array Int Int)) (~A~0.offset Int) (v_ArrVal_524 (Array Int Int)) (v_ArrVal_523 (Array Int Int)) (|thread3Thread1of1ForFork0_~i~2#1| Int) (v_ArrVal_517 (Array Int Int)) (v_ArrVal_516 (Array Int Int)) (v_ArrVal_519 (Array Int Int)) (v_ArrVal_518 (Array Int Int)) (~B~0.offset Int)) (let ((.cse18 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_516))) (let ((.cse26 (store .cse18 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_520))) (let ((.cse20 (store .cse26 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_523))) (let ((.cse24 (select .cse20 c_~A~0.base)) (.cse28 (* |thread3Thread1of1ForFork0_~i~2#1| 4)) (.cse29 (select .cse20 ~B~0.base)) (.cse27 (* 4 |thread1Thread1of1ForFork1_~i~0#1|))) (let ((.cse15 (select .cse29 (+ .cse27 ~B~0.offset))) (.cse17 (select .cse29 (+ .cse28 ~B~0.offset))) (.cse16 (select .cse24 (+ .cse28 ~A~0.offset))) (.cse19 (+ .cse27 ~A~0.offset))) (or (not (<= 0 .cse15)) (< |c_ULTIMATE.start_main_~i~3#1| (+ .cse16 1)) (not (< .cse17 c_~maxB~0)) (< c_~maxB~0 (+ .cse15 1)) (< (select (select .cse18 c_~A~0.base) .cse19) 0) (not (<= 0 .cse16)) (not (<= 0 .cse17)) (let ((.cse21 (select (store (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_518) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_521) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_524) c_~mult~0.base)) (.cse23 (select (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_517) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_519) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_522) c_~mult~0.base))) (< (+ c_~res1~0 (let ((.cse22 (+ (* (select .cse24 .cse19) 4) c_~mult~0.offset))) (select (select .cse20 (select .cse21 .cse22)) (+ (* .cse15 4) (select .cse23 .cse22))))) (+ c_~res2~0 (let ((.cse25 (+ c_~mult~0.offset (* .cse16 4)))) (select (select .cse20 (select .cse21 .cse25)) (+ (* .cse17 4) (select .cse23 .cse25)))) 1))) (< |c_ULTIMATE.start_main_~i~3#1| (+ (select (select .cse26 c_~A~0.base) .cse19) 1)))))))))) is different from false [2022-12-13 22:03:56,255 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 22:03:56,256 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 940 treesize of output 905 [2022-12-13 22:03:56,278 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 22:03:56,279 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 892 treesize of output 857 [2022-12-13 22:03:56,414 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 22:03:56,415 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 11108 treesize of output 11204 [2022-12-13 22:03:56,643 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 22:03:56,644 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 200556 treesize of output 193820 [2022-12-13 22:03:56,967 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 22:03:56,968 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 193375 treesize of output 180116 [2022-12-13 22:03:57,240 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 22:03:57,241 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 180063 treesize of output 176788 [2022-12-13 22:03:57,444 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 22:03:57,445 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 176735 treesize of output 170132 [2022-12-13 22:03:57,656 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 22:03:57,657 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 170079 treesize of output 163476 [2022-12-13 22:03:57,870 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 22:03:57,871 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 163423 treesize of output 160148 [2022-12-13 22:03:58,082 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 22:03:58,083 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 160095 treesize of output 146836 [2022-12-13 22:03:58,329 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 22:03:58,330 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 146783 treesize of output 133524 [2022-12-13 22:03:58,595 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 22:03:58,596 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 133471 treesize of output 126868 [2022-12-13 22:03:58,868 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 22:03:58,869 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 126815 treesize of output 123540 [2022-12-13 22:03:59,128 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 22:03:59,128 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 123487 treesize of output 110228 [2022-12-13 22:03:59,381 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 22:03:59,382 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 110175 treesize of output 103572 [2022-12-13 22:03:59,650 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 22:03:59,651 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 103519 treesize of output 100244