./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a734ed0b-1c4d-4c0c-8d3a-c82478f2ea4e/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a734ed0b-1c4d-4c0c-8d3a-c82478f2ea4e/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a734ed0b-1c4d-4c0c-8d3a-c82478f2ea4e/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a734ed0b-1c4d-4c0c-8d3a-c82478f2ea4e/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a734ed0b-1c4d-4c0c-8d3a-c82478f2ea4e/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a734ed0b-1c4d-4c0c-8d3a-c82478f2ea4e/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --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 6d47c8696b49948f6f8f53dd9eda6f4e0281717fd9a29e264a19ded5493fa577 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:00:08,322 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:00:08,390 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a734ed0b-1c4d-4c0c-8d3a-c82478f2ea4e/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 12:00:08,396 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:00:08,397 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:00:08,431 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:00:08,432 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:00:08,432 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:00:08,433 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:00:08,434 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:00:08,435 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:00:08,435 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:00:08,436 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:00:08,437 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:00:08,437 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:00:08,438 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:00:08,438 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:00:08,442 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 12:00:08,443 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:00:08,444 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 12:00:08,449 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:00:08,449 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:00:08,450 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:00:08,450 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:00:08,451 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 12:00:08,451 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:00:08,452 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:00:08,453 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:00:08,453 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:00:08,454 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 12:00:08,455 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:00:08,455 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:00:08,455 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:00:08,456 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:00:08,456 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 12:00:08,456 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 12:00:08,456 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 12:00:08,456 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:00:08,457 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:00:08,457 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 12:00:08,457 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:00:08,458 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:00:08,458 INFO L153 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_a734ed0b-1c4d-4c0c-8d3a-c82478f2ea4e/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a734ed0b-1c4d-4c0c-8d3a-c82478f2ea4e/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d47c8696b49948f6f8f53dd9eda6f4e0281717fd9a29e264a19ded5493fa577 [2023-11-26 12:00:08,765 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:00:08,802 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:00:08,805 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:00:08,807 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:00:08,807 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:00:08,809 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a734ed0b-1c4d-4c0c-8d3a-c82478f2ea4e/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c [2023-11-26 12:00:11,988 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:00:12,224 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:00:12,225 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a734ed0b-1c4d-4c0c-8d3a-c82478f2ea4e/sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c [2023-11-26 12:00:12,236 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a734ed0b-1c4d-4c0c-8d3a-c82478f2ea4e/bin/uautomizer-verify-VRDe98Ueme/data/a3cb3ae64/c1939769218842c696b5835b12f8340c/FLAGb80ff3eb7 [2023-11-26 12:00:12,256 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a734ed0b-1c4d-4c0c-8d3a-c82478f2ea4e/bin/uautomizer-verify-VRDe98Ueme/data/a3cb3ae64/c1939769218842c696b5835b12f8340c [2023-11-26 12:00:12,259 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:00:12,261 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:00:12,263 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:00:12,263 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:00:12,269 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:00:12,270 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:00:12" (1/1) ... [2023-11-26 12:00:12,271 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35ebe402 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:12, skipping insertion in model container [2023-11-26 12:00:12,271 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:00:12" (1/1) ... [2023-11-26 12:00:12,299 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:00:12,488 WARN L240 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_a734ed0b-1c4d-4c0c-8d3a-c82478f2ea4e/sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c[2638,2651] [2023-11-26 12:00:12,499 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:00:12,510 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:00:12,536 WARN L240 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_a734ed0b-1c4d-4c0c-8d3a-c82478f2ea4e/sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c[2638,2651] [2023-11-26 12:00:12,542 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:00:12,552 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 12:00:12,552 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 12:00:12,561 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:00:12,562 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:12 WrapperNode [2023-11-26 12:00:12,562 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:00:12,563 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:00:12,564 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:00:12,564 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:00:12,572 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:12" (1/1) ... [2023-11-26 12:00:12,583 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:12" (1/1) ... [2023-11-26 12:00:12,622 INFO L138 Inliner]: procedures = 25, calls = 52, calls flagged for inlining = 16, calls inlined = 28, statements flattened = 282 [2023-11-26 12:00:12,623 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:00:12,624 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:00:12,624 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:00:12,624 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:00:12,637 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:12" (1/1) ... [2023-11-26 12:00:12,637 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:12" (1/1) ... [2023-11-26 12:00:12,643 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:12" (1/1) ... [2023-11-26 12:00:12,667 INFO L175 MemorySlicer]: Split 16 memory accesses to 5 slices as follows [2, 2, 2, 8, 2]. 50 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 5 writes are split as follows [0, 1, 1, 2, 1]. [2023-11-26 12:00:12,671 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:12" (1/1) ... [2023-11-26 12:00:12,672 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:12" (1/1) ... [2023-11-26 12:00:12,692 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:12" (1/1) ... [2023-11-26 12:00:12,707 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:12" (1/1) ... [2023-11-26 12:00:12,714 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:12" (1/1) ... [2023-11-26 12:00:12,716 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:12" (1/1) ... [2023-11-26 12:00:12,721 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:00:12,722 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:00:12,723 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:00:12,723 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:00:12,724 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:12" (1/1) ... [2023-11-26 12:00:12,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:00:12,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a734ed0b-1c4d-4c0c-8d3a-c82478f2ea4e/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:12,769 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a734ed0b-1c4d-4c0c-8d3a-c82478f2ea4e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:12,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a734ed0b-1c4d-4c0c-8d3a-c82478f2ea4e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:00:12,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:00:12,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 12:00:12,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-26 12:00:12,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-26 12:00:12,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-26 12:00:12,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-26 12:00:12,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-26 12:00:12,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-26 12:00:12,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-26 12:00:12,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-26 12:00:12,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-26 12:00:12,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-26 12:00:12,831 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-26 12:00:12,831 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-26 12:00:12,831 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-26 12:00:12,832 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-26 12:00:12,832 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-26 12:00:12,832 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-26 12:00:12,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 12:00:12,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 12:00:12,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-26 12:00:12,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-26 12:00:12,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-26 12:00:12,833 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-26 12:00:12,834 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-26 12:00:12,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-26 12:00:12,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:00:12,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:00:12,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 12:00:12,836 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-26 12:00:13,011 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:00:13,013 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:00:13,581 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:00:14,219 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:00:14,219 INFO L309 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-26 12:00:14,220 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:00:14 BoogieIcfgContainer [2023-11-26 12:00:14,220 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:00:14,228 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:00:14,228 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:00:14,232 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:00:14,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:00:12" (1/3) ... [2023-11-26 12:00:14,234 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f55120a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:00:14, skipping insertion in model container [2023-11-26 12:00:14,234 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:12" (2/3) ... [2023-11-26 12:00:14,236 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f55120a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:00:14, skipping insertion in model container [2023-11-26 12:00:14,236 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:00:14" (3/3) ... [2023-11-26 12:00:14,238 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-array-sum2.wvr.c [2023-11-26 12:00:14,249 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 12:00:14,261 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:00:14,262 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 12:00:14,262 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 12:00:14,336 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-26 12:00:14,386 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 42 places, 37 transitions, 95 flow [2023-11-26 12:00:14,435 INFO L124 PetriNetUnfolderBase]: 5/34 cut-off events. [2023-11-26 12:00:14,436 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-26 12:00:14,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 34 events. 5/34 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 39 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2023-11-26 12:00:14,441 INFO L82 GeneralOperation]: Start removeDead. Operand has 42 places, 37 transitions, 95 flow [2023-11-26 12:00:14,454 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 38 places, 33 transitions, 84 flow [2023-11-26 12:00:14,464 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:00:14,471 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=LoopHeads, 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;@4176b10e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:00:14,471 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-26 12:00:14,486 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 12:00:14,486 INFO L124 PetriNetUnfolderBase]: 5/32 cut-off events. [2023-11-26 12:00:14,487 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-26 12:00:14,487 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:00:14,487 INFO L208 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] [2023-11-26 12:00:14,488 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)] === [2023-11-26 12:00:14,494 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:14,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1515518861, now seen corresponding path program 1 times [2023-11-26 12:00:14,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:14,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404990198] [2023-11-26 12:00:14,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:14,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:14,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:15,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:15,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:15,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404990198] [2023-11-26 12:00:15,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404990198] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:15,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:15,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:00:15,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135695107] [2023-11-26 12:00:15,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:15,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:00:15,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:15,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:00:15,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:00:15,190 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 37 [2023-11-26 12:00:15,192 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 33 transitions, 84 flow. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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) [2023-11-26 12:00:15,193 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:00:15,193 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 37 [2023-11-26 12:00:15,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:00:15,474 INFO L124 PetriNetUnfolderBase]: 467/721 cut-off events. [2023-11-26 12:00:15,475 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2023-11-26 12:00:15,484 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1472 conditions, 721 events. 467/721 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 2774 event pairs, 333 based on Foata normal form. 1/714 useless extension candidates. Maximal degree in co-relation 1197. Up to 681 conditions per place. [2023-11-26 12:00:15,492 INFO L140 encePairwiseOnDemand]: 32/37 looper letters, 27 selfloop transitions, 4 changer transitions 1/36 dead transitions. [2023-11-26 12:00:15,492 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 36 transitions, 154 flow [2023-11-26 12:00:15,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:00:15,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-26 12:00:15,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 63 transitions. [2023-11-26 12:00:15,506 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42567567567567566 [2023-11-26 12:00:15,506 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 63 transitions. [2023-11-26 12:00:15,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 63 transitions. [2023-11-26 12:00:15,508 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:00:15,510 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 63 transitions. [2023-11-26 12:00:15,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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) [2023-11-26 12:00:15,516 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 37.0) internal successors, (185), 5 states have internal predecessors, (185), 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) [2023-11-26 12:00:15,516 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 37.0) internal successors, (185), 5 states have internal predecessors, (185), 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) [2023-11-26 12:00:15,518 INFO L175 Difference]: Start difference. First operand has 38 places, 33 transitions, 84 flow. Second operand 4 states and 63 transitions. [2023-11-26 12:00:15,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 36 transitions, 154 flow [2023-11-26 12:00:15,524 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 36 transitions, 142 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-26 12:00:15,526 INFO L231 Difference]: Finished difference. Result has 37 places, 35 transitions, 98 flow [2023-11-26 12:00:15,528 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=98, PETRI_PLACES=37, PETRI_TRANSITIONS=35} [2023-11-26 12:00:15,532 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, -1 predicate places. [2023-11-26 12:00:15,532 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 35 transitions, 98 flow [2023-11-26 12:00:15,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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) [2023-11-26 12:00:15,533 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:00:15,533 INFO L208 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] [2023-11-26 12:00:15,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 12:00:15,534 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)] === [2023-11-26 12:00:15,534 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:15,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1715187821, now seen corresponding path program 1 times [2023-11-26 12:00:15,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:15,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156727062] [2023-11-26 12:00:15,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:15,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:15,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:15,771 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 12:00:15,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:15,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156727062] [2023-11-26 12:00:15,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156727062] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:00:15,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [922599815] [2023-11-26 12:00:15,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:15,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:00:15,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a734ed0b-1c4d-4c0c-8d3a-c82478f2ea4e/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:15,776 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a734ed0b-1c4d-4c0c-8d3a-c82478f2ea4e/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:00:15,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a734ed0b-1c4d-4c0c-8d3a-c82478f2ea4e/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 12:00:15,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:15,950 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 12:00:15,957 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:16,045 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 12:00:16,046 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:00:16,100 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 12:00:16,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [922599815] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-26 12:00:16,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-26 12:00:16,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 4] total 9 [2023-11-26 12:00:16,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084636286] [2023-11-26 12:00:16,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:16,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 12:00:16,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:16,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 12:00:16,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-26 12:00:16,110 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 37 [2023-11-26 12:00:16,110 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 35 transitions, 98 flow. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 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) [2023-11-26 12:00:16,110 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:00:16,110 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 37 [2023-11-26 12:00:16,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:00:16,390 INFO L124 PetriNetUnfolderBase]: 663/989 cut-off events. [2023-11-26 12:00:16,391 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2023-11-26 12:00:16,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1998 conditions, 989 events. 663/989 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 3997 event pairs, 253 based on Foata normal form. 0/944 useless extension candidates. Maximal degree in co-relation 1976. Up to 499 conditions per place. [2023-11-26 12:00:16,399 INFO L140 encePairwiseOnDemand]: 31/37 looper letters, 41 selfloop transitions, 5 changer transitions 0/49 dead transitions. [2023-11-26 12:00:16,399 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 49 transitions, 220 flow [2023-11-26 12:00:16,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 12:00:16,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-26 12:00:16,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 76 transitions. [2023-11-26 12:00:16,401 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41081081081081083 [2023-11-26 12:00:16,401 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 76 transitions. [2023-11-26 12:00:16,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 76 transitions. [2023-11-26 12:00:16,402 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:00:16,402 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 76 transitions. [2023-11-26 12:00:16,403 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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) [2023-11-26 12:00:16,404 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 37.0) internal successors, (222), 6 states have internal predecessors, (222), 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) [2023-11-26 12:00:16,404 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 37.0) internal successors, (222), 6 states have internal predecessors, (222), 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) [2023-11-26 12:00:16,404 INFO L175 Difference]: Start difference. First operand has 37 places, 35 transitions, 98 flow. Second operand 5 states and 76 transitions. [2023-11-26 12:00:16,405 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 49 transitions, 220 flow [2023-11-26 12:00:16,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 49 transitions, 212 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-11-26 12:00:16,407 INFO L231 Difference]: Finished difference. Result has 40 places, 36 transitions, 113 flow [2023-11-26 12:00:16,408 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=113, PETRI_PLACES=40, PETRI_TRANSITIONS=36} [2023-11-26 12:00:16,409 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 2 predicate places. [2023-11-26 12:00:16,409 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 36 transitions, 113 flow [2023-11-26 12:00:16,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 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) [2023-11-26 12:00:16,409 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:00:16,409 INFO L208 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] [2023-11-26 12:00:16,419 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a734ed0b-1c4d-4c0c-8d3a-c82478f2ea4e/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-26 12:00:16,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a734ed0b-1c4d-4c0c-8d3a-c82478f2ea4e/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:00:16,616 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)] === [2023-11-26 12:00:16,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:16,618 INFO L85 PathProgramCache]: Analyzing trace with hash -320795522, now seen corresponding path program 1 times [2023-11-26 12:00:16,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:16,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106764890] [2023-11-26 12:00:16,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:16,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:16,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:16,746 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-26 12:00:16,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:16,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106764890] [2023-11-26 12:00:16,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106764890] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:16,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:16,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 12:00:16,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602742424] [2023-11-26 12:00:16,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:16,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:00:16,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:16,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:00:16,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:00:16,758 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 37 [2023-11-26 12:00:16,759 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 36 transitions, 113 flow. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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) [2023-11-26 12:00:16,759 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:00:16,759 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 37 [2023-11-26 12:00:16,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:00:17,080 INFO L124 PetriNetUnfolderBase]: 801/1170 cut-off events. [2023-11-26 12:00:17,080 INFO L125 PetriNetUnfolderBase]: For 417/417 co-relation queries the response was YES. [2023-11-26 12:00:17,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2675 conditions, 1170 events. 801/1170 cut-off events. For 417/417 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 4337 event pairs, 315 based on Foata normal form. 0/1108 useless extension candidates. Maximal degree in co-relation 2646. Up to 597 conditions per place. [2023-11-26 12:00:17,092 INFO L140 encePairwiseOnDemand]: 32/37 looper letters, 42 selfloop transitions, 4 changer transitions 0/50 dead transitions. [2023-11-26 12:00:17,092 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 50 transitions, 245 flow [2023-11-26 12:00:17,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:00:17,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-26 12:00:17,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 69 transitions. [2023-11-26 12:00:17,094 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46621621621621623 [2023-11-26 12:00:17,094 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 69 transitions. [2023-11-26 12:00:17,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 69 transitions. [2023-11-26 12:00:17,095 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:00:17,095 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 69 transitions. [2023-11-26 12:00:17,096 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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) [2023-11-26 12:00:17,097 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 37.0) internal successors, (185), 5 states have internal predecessors, (185), 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) [2023-11-26 12:00:17,098 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 37.0) internal successors, (185), 5 states have internal predecessors, (185), 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) [2023-11-26 12:00:17,098 INFO L175 Difference]: Start difference. First operand has 40 places, 36 transitions, 113 flow. Second operand 4 states and 69 transitions. [2023-11-26 12:00:17,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 50 transitions, 245 flow [2023-11-26 12:00:17,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 50 transitions, 237 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-11-26 12:00:17,101 INFO L231 Difference]: Finished difference. Result has 43 places, 37 transitions, 128 flow [2023-11-26 12:00:17,102 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=128, PETRI_PLACES=43, PETRI_TRANSITIONS=37} [2023-11-26 12:00:17,102 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 5 predicate places. [2023-11-26 12:00:17,103 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 37 transitions, 128 flow [2023-11-26 12:00:17,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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) [2023-11-26 12:00:17,103 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:00:17,103 INFO L208 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] [2023-11-26 12:00:17,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 12:00:17,104 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)] === [2023-11-26 12:00:17,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:17,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1722030587, now seen corresponding path program 1 times [2023-11-26 12:00:17,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:17,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695221810] [2023-11-26 12:00:17,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:17,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:17,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:19,231 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:19,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:19,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695221810] [2023-11-26 12:00:19,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695221810] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:00:19,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1554220972] [2023-11-26 12:00:19,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:19,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:00:19,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a734ed0b-1c4d-4c0c-8d3a-c82478f2ea4e/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:19,234 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a734ed0b-1c4d-4c0c-8d3a-c82478f2ea4e/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:00:19,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a734ed0b-1c4d-4c0c-8d3a-c82478f2ea4e/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 12:00:19,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:19,395 INFO L262 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 51 conjunts are in the unsatisfiable core [2023-11-26 12:00:19,399 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:19,468 INFO L378 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 [2023-11-26 12:00:19,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 12:00:19,483 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-11-26 12:00:19,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 12:00:19,500 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 [2023-11-26 12:00:19,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 12:00:19,510 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-11-26 12:00:19,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 12:00:19,523 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-11-26 12:00:19,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 12:00:19,537 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2023-11-26 12:00:19,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 12:00:19,564 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2023-11-26 12:00:19,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 12:00:19,576 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-11-26 12:00:19,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 12:00:19,609 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 1 [2023-11-26 12:00:19,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 12:00:19,632 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2023-11-26 12:00:19,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 12:00:19,649 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-11-26 12:00:19,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 12:00:19,664 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2023-11-26 12:00:19,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 12:00:19,677 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 [2023-11-26 12:00:19,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 12:00:19,687 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-11-26 12:00:19,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 12:00:19,709 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-11-26 12:00:19,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 12:00:19,715 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 [2023-11-26 12:00:19,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 12:00:19,729 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2023-11-26 12:00:19,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 12:00:19,737 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-11-26 12:00:19,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 12:00:19,751 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-11-26 12:00:19,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 12:00:19,765 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2023-11-26 12:00:19,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 12:00:19,775 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 [2023-11-26 12:00:19,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 12:00:19,783 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-11-26 12:00:19,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 12:00:19,793 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-11-26 12:00:19,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 12:00:19,800 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 [2023-11-26 12:00:19,857 INFO L378 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 1 [2023-11-26 12:00:19,942 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-26 12:00:19,943 INFO L378 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 [2023-11-26 12:00:19,961 INFO L378 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 1 [2023-11-26 12:00:20,558 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2023-11-26 12:00:20,574 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:20,574 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:00:21,326 INFO L349 Elim1Store]: treesize reduction 28, result has 64.6 percent of original size [2023-11-26 12:00:21,326 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 1618 treesize of output 1188 [2023-11-26 12:00:21,469 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-26 12:00:21,470 INFO L378 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 553 treesize of output 521