./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-bad-three-array-sum-alt.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_a9a55484-f618-4f7a-88aa-a9630a62b9ae/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a55484-f618-4f7a-88aa-a9630a62b9ae/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_a9a55484-f618-4f7a-88aa-a9630a62b9ae/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a55484-f618-4f7a-88aa-a9630a62b9ae/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-three-array-sum-alt.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a55484-f618-4f7a-88aa-a9630a62b9ae/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_a9a55484-f618-4f7a-88aa-a9630a62b9ae/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 6727abf6d3311127e7c3f388ca276994a5a41bcb1f2faca3217c66ebe13b8b8f --- 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 20:38:51,526 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 20:38:51,528 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 20:38:51,552 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 20:38:51,553 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 20:38:51,554 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 20:38:51,554 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 20:38:51,555 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 20:38:51,556 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 20:38:51,557 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 20:38:51,562 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 20:38:51,563 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 20:38:51,563 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 20:38:51,564 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 20:38:51,564 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 20:38:51,565 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 20:38:51,566 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 20:38:51,566 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 20:38:51,567 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 20:38:51,568 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 20:38:51,569 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 20:38:51,570 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 20:38:51,571 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 20:38:51,571 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 20:38:51,573 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 20:38:51,574 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 20:38:51,574 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 20:38:51,575 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 20:38:51,575 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 20:38:51,575 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 20:38:51,576 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 20:38:51,576 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 20:38:51,577 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 20:38:51,577 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 20:38:51,578 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 20:38:51,578 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 20:38:51,579 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 20:38:51,579 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 20:38:51,579 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 20:38:51,580 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 20:38:51,580 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 20:38:51,581 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a55484-f618-4f7a-88aa-a9630a62b9ae/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 20:38:51,594 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 20:38:51,595 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 20:38:51,595 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 20:38:51,595 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 20:38:51,595 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 20:38:51,596 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 20:38:51,596 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 20:38:51,596 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 20:38:51,596 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 20:38:51,596 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 20:38:51,597 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 20:38:51,597 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 20:38:51,597 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 20:38:51,597 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 20:38:51,597 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 20:38:51,598 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 20:38:51,598 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 20:38:51,598 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 20:38:51,598 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 20:38:51,598 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 20:38:51,598 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 20:38:51,598 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 20:38:51,598 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 20:38:51,599 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 20:38:51,599 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:38:51,599 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 20:38:51,599 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 20:38:51,599 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 20:38:51,599 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 20:38:51,600 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 20:38:51,600 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 20:38:51,600 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 20:38:51,600 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 20:38:51,600 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 20:38:51,600 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 20:38:51,600 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_a9a55484-f618-4f7a-88aa-a9630a62b9ae/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a55484-f618-4f7a-88aa-a9630a62b9ae/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6727abf6d3311127e7c3f388ca276994a5a41bcb1f2faca3217c66ebe13b8b8f [2022-12-13 20:38:51,751 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 20:38:51,769 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 20:38:51,771 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 20:38:51,772 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 20:38:51,772 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 20:38:51,773 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a55484-f618-4f7a-88aa-a9630a62b9ae/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/weaver/popl20-bad-three-array-sum-alt.wvr.c [2022-12-13 20:38:54,405 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 20:38:54,547 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 20:38:54,547 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a55484-f618-4f7a-88aa-a9630a62b9ae/sv-benchmarks/c/weaver/popl20-bad-three-array-sum-alt.wvr.c [2022-12-13 20:38:54,552 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a55484-f618-4f7a-88aa-a9630a62b9ae/bin/uautomizer-uyxdKDjOR8/data/3d415a10f/598cd25fedd143a98a1f35bc0dd7f50d/FLAGa4d9d132e [2022-12-13 20:38:54,562 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a55484-f618-4f7a-88aa-a9630a62b9ae/bin/uautomizer-uyxdKDjOR8/data/3d415a10f/598cd25fedd143a98a1f35bc0dd7f50d [2022-12-13 20:38:54,564 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 20:38:54,565 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 20:38:54,565 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 20:38:54,565 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 20:38:54,569 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 20:38:54,569 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:38:54" (1/1) ... [2022-12-13 20:38:54,570 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a89011e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:38:54, skipping insertion in model container [2022-12-13 20:38:54,570 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:38:54" (1/1) ... [2022-12-13 20:38:54,578 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 20:38:54,595 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 20:38:54,724 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_a9a55484-f618-4f7a-88aa-a9630a62b9ae/sv-benchmarks/c/weaver/popl20-bad-three-array-sum-alt.wvr.c[2412,2425] [2022-12-13 20:38:54,731 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:38:54,738 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 20:38:54,754 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_a9a55484-f618-4f7a-88aa-a9630a62b9ae/sv-benchmarks/c/weaver/popl20-bad-three-array-sum-alt.wvr.c[2412,2425] [2022-12-13 20:38:54,757 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:38:54,767 INFO L208 MainTranslator]: Completed translation [2022-12-13 20:38:54,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:38:54 WrapperNode [2022-12-13 20:38:54,768 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 20:38:54,769 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 20:38:54,769 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 20:38:54,769 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 20:38:54,774 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:38:54" (1/1) ... [2022-12-13 20:38:54,780 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:38:54" (1/1) ... [2022-12-13 20:38:54,800 INFO L138 Inliner]: procedures = 26, calls = 45, calls flagged for inlining = 15, calls inlined = 27, statements flattened = 271 [2022-12-13 20:38:54,800 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 20:38:54,801 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 20:38:54,801 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 20:38:54,801 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 20:38:54,808 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:38:54" (1/1) ... [2022-12-13 20:38:54,809 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:38:54" (1/1) ... [2022-12-13 20:38:54,811 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:38:54" (1/1) ... [2022-12-13 20:38:54,812 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:38:54" (1/1) ... [2022-12-13 20:38:54,817 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:38:54" (1/1) ... [2022-12-13 20:38:54,821 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:38:54" (1/1) ... [2022-12-13 20:38:54,822 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:38:54" (1/1) ... [2022-12-13 20:38:54,823 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:38:54" (1/1) ... [2022-12-13 20:38:54,826 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 20:38:54,827 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 20:38:54,827 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 20:38:54,827 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 20:38:54,828 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:38:54" (1/1) ... [2022-12-13 20:38:54,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:38:54,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a55484-f618-4f7a-88aa-a9630a62b9ae/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:38:54,851 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a55484-f618-4f7a-88aa-a9630a62b9ae/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 20:38:54,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a55484-f618-4f7a-88aa-a9630a62b9ae/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 20:38:54,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 20:38:54,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 20:38:54,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 20:38:54,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 20:38:54,887 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-13 20:38:54,887 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-13 20:38:54,887 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-13 20:38:54,887 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-13 20:38:54,887 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-13 20:38:54,888 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-13 20:38:54,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 20:38:54,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 20:38:54,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 20:38:54,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 20:38:54,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 20:38:54,890 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 20:38:54,989 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 20:38:54,991 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 20:38:55,303 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 20:38:55,316 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 20:38:55,316 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-12-13 20:38:55,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:38:55 BoogieIcfgContainer [2022-12-13 20:38:55,319 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 20:38:55,322 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 20:38:55,322 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 20:38:55,325 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 20:38:55,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 08:38:54" (1/3) ... [2022-12-13 20:38:55,326 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22edb7e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:38:55, skipping insertion in model container [2022-12-13 20:38:55,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:38:54" (2/3) ... [2022-12-13 20:38:55,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22edb7e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:38:55, skipping insertion in model container [2022-12-13 20:38:55,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:38:55" (3/3) ... [2022-12-13 20:38:55,328 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-three-array-sum-alt.wvr.c [2022-12-13 20:38:55,337 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 20:38:55,347 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 20:38:55,348 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 20:38:55,348 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 20:38:55,434 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-13 20:38:55,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 349 places, 368 transitions, 760 flow [2022-12-13 20:38:55,595 INFO L130 PetriNetUnfolder]: 29/365 cut-off events. [2022-12-13 20:38:55,596 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 20:38:55,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 378 conditions, 365 events. 29/365 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 508 event pairs, 0 based on Foata normal form. 0/335 useless extension candidates. Maximal degree in co-relation 239. Up to 2 conditions per place. [2022-12-13 20:38:55,604 INFO L82 GeneralOperation]: Start removeDead. Operand has 349 places, 368 transitions, 760 flow [2022-12-13 20:38:55,611 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 335 places, 354 transitions, 726 flow [2022-12-13 20:38:55,615 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 20:38:55,626 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 335 places, 354 transitions, 726 flow [2022-12-13 20:38:55,628 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 335 places, 354 transitions, 726 flow [2022-12-13 20:38:55,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 335 places, 354 transitions, 726 flow [2022-12-13 20:38:55,693 INFO L130 PetriNetUnfolder]: 29/354 cut-off events. [2022-12-13 20:38:55,693 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 20:38:55,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 367 conditions, 354 events. 29/354 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 498 event pairs, 0 based on Foata normal form. 0/325 useless extension candidates. Maximal degree in co-relation 239. Up to 2 conditions per place. [2022-12-13 20:38:55,704 INFO L119 LiptonReduction]: Number of co-enabled transitions 17502 [2022-12-13 20:39:04,321 INFO L134 LiptonReduction]: Checked pairs total: 15741 [2022-12-13 20:39:04,321 INFO L136 LiptonReduction]: Total number of compositions: 416 [2022-12-13 20:39:04,335 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 20:39:04,340 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;@25bfbd44, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 20:39:04,340 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-13 20:39:04,345 INFO L130 PetriNetUnfolder]: 6/27 cut-off events. [2022-12-13 20:39:04,345 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 20:39:04,345 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:39:04,346 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 20:39:04,346 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 20:39:04,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:39:04,354 INFO L85 PathProgramCache]: Analyzing trace with hash 416948042, now seen corresponding path program 1 times [2022-12-13 20:39:04,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:39:04,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111349732] [2022-12-13 20:39:04,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:39:04,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:39:04,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:39:04,786 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 20:39:04,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:39:04,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111349732] [2022-12-13 20:39:04,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111349732] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:39:04,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:39:04,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 20:39:04,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954294118] [2022-12-13 20:39:04,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:39:04,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:39:04,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:39:04,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:39:04,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:39:04,830 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 335 out of 784 [2022-12-13 20:39:04,833 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 28 transitions, 74 flow. Second operand has 3 states, 3 states have (on average 341.3333333333333) internal successors, (1024), 3 states have internal predecessors, (1024), 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 20:39:04,833 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:39:04,833 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 335 of 784 [2022-12-13 20:39:04,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:39:04,955 INFO L130 PetriNetUnfolder]: 362/512 cut-off events. [2022-12-13 20:39:04,955 INFO L131 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2022-12-13 20:39:04,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1076 conditions, 512 events. 362/512 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1598 event pairs, 39 based on Foata normal form. 1/314 useless extension candidates. Maximal degree in co-relation 803. Up to 421 conditions per place. [2022-12-13 20:39:04,958 INFO L137 encePairwiseOnDemand]: 779/784 looper letters, 36 selfloop transitions, 4 changer transitions 1/44 dead transitions. [2022-12-13 20:39:04,958 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 44 transitions, 203 flow [2022-12-13 20:39:04,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:39:04,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 20:39:04,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1047 transitions. [2022-12-13 20:39:04,972 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4451530612244898 [2022-12-13 20:39:04,973 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1047 transitions. [2022-12-13 20:39:04,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1047 transitions. [2022-12-13 20:39:04,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:39:04,977 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1047 transitions. [2022-12-13 20:39:04,981 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 349.0) internal successors, (1047), 3 states have internal predecessors, (1047), 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 20:39:04,987 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 784.0) internal successors, (3136), 4 states have internal predecessors, (3136), 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 20:39:04,988 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 784.0) internal successors, (3136), 4 states have internal predecessors, (3136), 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 20:39:04,990 INFO L175 Difference]: Start difference. First operand has 32 places, 28 transitions, 74 flow. Second operand 3 states and 1047 transitions. [2022-12-13 20:39:04,990 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 44 transitions, 203 flow [2022-12-13 20:39:04,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 44 transitions, 181 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-12-13 20:39:04,994 INFO L231 Difference]: Finished difference. Result has 29 places, 31 transitions, 88 flow [2022-12-13 20:39:04,995 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=784, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=88, PETRI_PLACES=29, PETRI_TRANSITIONS=31} [2022-12-13 20:39:04,998 INFO L288 CegarLoopForPetriNet]: 32 programPoint places, -3 predicate places. [2022-12-13 20:39:04,998 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 31 transitions, 88 flow [2022-12-13 20:39:04,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 341.3333333333333) internal successors, (1024), 3 states have internal predecessors, (1024), 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 20:39:04,998 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:39:04,998 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] [2022-12-13 20:39:04,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 20:39:04,999 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 20:39:04,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:39:04,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1436885249, now seen corresponding path program 1 times [2022-12-13 20:39:04,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:39:05,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991718114] [2022-12-13 20:39:05,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:39:05,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:39:05,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:39:05,092 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:39:05,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:39:05,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991718114] [2022-12-13 20:39:05,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991718114] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:39:05,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:39:05,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 20:39:05,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452599765] [2022-12-13 20:39:05,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:39:05,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 20:39:05,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:39:05,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 20:39:05,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 20:39:05,194 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 321 out of 784 [2022-12-13 20:39:05,197 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 31 transitions, 88 flow. Second operand has 5 states, 5 states have (on average 325.2) internal successors, (1626), 5 states have internal predecessors, (1626), 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 20:39:05,198 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:39:05,198 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 321 of 784 [2022-12-13 20:39:05,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:39:05,465 INFO L130 PetriNetUnfolder]: 907/1366 cut-off events. [2022-12-13 20:39:05,465 INFO L131 PetriNetUnfolder]: For 379/379 co-relation queries the response was YES. [2022-12-13 20:39:05,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3318 conditions, 1366 events. 907/1366 cut-off events. For 379/379 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 5980 event pairs, 373 based on Foata normal form. 68/1424 useless extension candidates. Maximal degree in co-relation 757. Up to 480 conditions per place. [2022-12-13 20:39:05,483 INFO L137 encePairwiseOnDemand]: 775/784 looper letters, 91 selfloop transitions, 14 changer transitions 0/107 dead transitions. [2022-12-13 20:39:05,483 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 107 transitions, 510 flow [2022-12-13 20:39:05,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 20:39:05,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 20:39:05,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2343 transitions. [2022-12-13 20:39:05,491 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42693148688046645 [2022-12-13 20:39:05,492 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2343 transitions. [2022-12-13 20:39:05,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2343 transitions. [2022-12-13 20:39:05,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:39:05,493 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2343 transitions. [2022-12-13 20:39:05,496 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 334.7142857142857) internal successors, (2343), 7 states have internal predecessors, (2343), 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 20:39:05,502 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 784.0) internal successors, (6272), 8 states have internal predecessors, (6272), 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 20:39:05,504 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 784.0) internal successors, (6272), 8 states have internal predecessors, (6272), 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 20:39:05,504 INFO L175 Difference]: Start difference. First operand has 29 places, 31 transitions, 88 flow. Second operand 7 states and 2343 transitions. [2022-12-13 20:39:05,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 107 transitions, 510 flow [2022-12-13 20:39:05,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 107 transitions, 498 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 20:39:05,507 INFO L231 Difference]: Finished difference. Result has 38 places, 43 transitions, 178 flow [2022-12-13 20:39:05,507 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=784, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=178, PETRI_PLACES=38, PETRI_TRANSITIONS=43} [2022-12-13 20:39:05,508 INFO L288 CegarLoopForPetriNet]: 32 programPoint places, 6 predicate places. [2022-12-13 20:39:05,508 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 43 transitions, 178 flow [2022-12-13 20:39:05,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 325.2) internal successors, (1626), 5 states have internal predecessors, (1626), 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 20:39:05,509 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:39:05,509 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] [2022-12-13 20:39:05,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 20:39:05,509 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 20:39:05,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:39:05,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1860646699, now seen corresponding path program 1 times [2022-12-13 20:39:05,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:39:05,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16378537] [2022-12-13 20:39:05,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:39:05,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:39:05,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:39:05,602 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:39:05,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:39:05,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16378537] [2022-12-13 20:39:05,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16378537] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:39:05,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:39:05,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 20:39:05,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173683688] [2022-12-13 20:39:05,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:39:05,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 20:39:05,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:39:05,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 20:39:05,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 20:39:05,704 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 321 out of 784 [2022-12-13 20:39:05,706 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 43 transitions, 178 flow. Second operand has 5 states, 5 states have (on average 325.2) internal successors, (1626), 5 states have internal predecessors, (1626), 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 20:39:05,706 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:39:05,706 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 321 of 784 [2022-12-13 20:39:05,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:39:05,910 INFO L130 PetriNetUnfolder]: 633/1012 cut-off events. [2022-12-13 20:39:05,911 INFO L131 PetriNetUnfolder]: For 682/744 co-relation queries the response was YES. [2022-12-13 20:39:05,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2457 conditions, 1012 events. 633/1012 cut-off events. For 682/744 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 4841 event pairs, 223 based on Foata normal form. 118/1129 useless extension candidates. Maximal degree in co-relation 1363. Up to 490 conditions per place. [2022-12-13 20:39:05,915 INFO L137 encePairwiseOnDemand]: 775/784 looper letters, 83 selfloop transitions, 14 changer transitions 0/101 dead transitions. [2022-12-13 20:39:05,915 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 101 transitions, 536 flow [2022-12-13 20:39:05,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 20:39:05,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 20:39:05,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2339 transitions. [2022-12-13 20:39:05,923 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42620262390670555 [2022-12-13 20:39:05,923 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2339 transitions. [2022-12-13 20:39:05,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2339 transitions. [2022-12-13 20:39:05,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:39:05,924 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2339 transitions. [2022-12-13 20:39:05,927 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 334.14285714285717) internal successors, (2339), 7 states have internal predecessors, (2339), 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 20:39:05,933 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 784.0) internal successors, (6272), 8 states have internal predecessors, (6272), 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 20:39:05,935 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 784.0) internal successors, (6272), 8 states have internal predecessors, (6272), 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 20:39:05,935 INFO L175 Difference]: Start difference. First operand has 38 places, 43 transitions, 178 flow. Second operand 7 states and 2339 transitions. [2022-12-13 20:39:05,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 101 transitions, 536 flow [2022-12-13 20:39:05,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 101 transitions, 536 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 20:39:05,938 INFO L231 Difference]: Finished difference. Result has 46 places, 45 transitions, 222 flow [2022-12-13 20:39:05,938 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=784, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=222, PETRI_PLACES=46, PETRI_TRANSITIONS=45} [2022-12-13 20:39:05,938 INFO L288 CegarLoopForPetriNet]: 32 programPoint places, 14 predicate places. [2022-12-13 20:39:05,938 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 45 transitions, 222 flow [2022-12-13 20:39:05,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 325.2) internal successors, (1626), 5 states have internal predecessors, (1626), 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 20:39:05,939 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:39:05,939 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] [2022-12-13 20:39:05,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 20:39:05,939 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 20:39:05,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:39:05,940 INFO L85 PathProgramCache]: Analyzing trace with hash -234007723, now seen corresponding path program 1 times [2022-12-13 20:39:05,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:39:05,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112989200] [2022-12-13 20:39:05,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:39:05,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:39:05,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:39:06,017 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:39:06,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:39:06,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112989200] [2022-12-13 20:39:06,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112989200] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:39:06,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:39:06,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 20:39:06,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133947244] [2022-12-13 20:39:06,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:39:06,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 20:39:06,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:39:06,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 20:39:06,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 20:39:06,108 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 321 out of 784 [2022-12-13 20:39:06,111 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 45 transitions, 222 flow. Second operand has 5 states, 5 states have (on average 325.2) internal successors, (1626), 5 states have internal predecessors, (1626), 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 20:39:06,111 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:39:06,111 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 321 of 784 [2022-12-13 20:39:06,111 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:39:06,322 INFO L130 PetriNetUnfolder]: 481/766 cut-off events. [2022-12-13 20:39:06,323 INFO L131 PetriNetUnfolder]: For 953/1024 co-relation queries the response was YES. [2022-12-13 20:39:06,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2079 conditions, 766 events. 481/766 cut-off events. For 953/1024 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3275 event pairs, 218 based on Foata normal form. 99/854 useless extension candidates. Maximal degree in co-relation 1539. Up to 518 conditions per place. [2022-12-13 20:39:06,328 INFO L137 encePairwiseOnDemand]: 775/784 looper letters, 26 selfloop transitions, 6 changer transitions 59/93 dead transitions. [2022-12-13 20:39:06,329 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 93 transitions, 520 flow [2022-12-13 20:39:06,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 20:39:06,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 20:39:06,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2333 transitions. [2022-12-13 20:39:06,333 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42510932944606417 [2022-12-13 20:39:06,333 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2333 transitions. [2022-12-13 20:39:06,333 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2333 transitions. [2022-12-13 20:39:06,334 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:39:06,334 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2333 transitions. [2022-12-13 20:39:06,337 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 333.2857142857143) internal successors, (2333), 7 states have internal predecessors, (2333), 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 20:39:06,342 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 784.0) internal successors, (6272), 8 states have internal predecessors, (6272), 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 20:39:06,344 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 784.0) internal successors, (6272), 8 states have internal predecessors, (6272), 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 20:39:06,344 INFO L175 Difference]: Start difference. First operand has 46 places, 45 transitions, 222 flow. Second operand 7 states and 2333 transitions. [2022-12-13 20:39:06,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 93 transitions, 520 flow [2022-12-13 20:39:06,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 93 transitions, 503 flow, removed 4 selfloop flow, removed 1 redundant places. [2022-12-13 20:39:06,348 INFO L231 Difference]: Finished difference. Result has 55 places, 34 transitions, 158 flow [2022-12-13 20:39:06,348 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=784, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=158, PETRI_PLACES=55, PETRI_TRANSITIONS=34} [2022-12-13 20:39:06,348 INFO L288 CegarLoopForPetriNet]: 32 programPoint places, 23 predicate places. [2022-12-13 20:39:06,348 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 34 transitions, 158 flow [2022-12-13 20:39:06,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 325.2) internal successors, (1626), 5 states have internal predecessors, (1626), 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 20:39:06,349 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:39:06,349 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] [2022-12-13 20:39:06,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 20:39:06,349 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 20:39:06,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:39:06,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1256512097, now seen corresponding path program 1 times [2022-12-13 20:39:06,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:39:06,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288365634] [2022-12-13 20:39:06,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:39:06,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:39:06,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:39:06,437 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 20:39:06,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:39:06,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288365634] [2022-12-13 20:39:06,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288365634] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:39:06,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [232312360] [2022-12-13 20:39:06,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:39:06,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:39:06,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a55484-f618-4f7a-88aa-a9630a62b9ae/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:39:06,439 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a55484-f618-4f7a-88aa-a9630a62b9ae/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:39:06,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a55484-f618-4f7a-88aa-a9630a62b9ae/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 20:39:06,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:39:06,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 20:39:06,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:39:06,600 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 20:39:06,600 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 20:39:06,640 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 20:39:06,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [232312360] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-13 20:39:06,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-13 20:39:06,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 8 [2022-12-13 20:39:06,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186617807] [2022-12-13 20:39:06,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:39:06,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 20:39:06,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:39:06,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 20:39:06,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-12-13 20:39:06,737 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 314 out of 784 [2022-12-13 20:39:06,738 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 34 transitions, 158 flow. Second operand has 5 states, 5 states have (on average 318.8) internal successors, (1594), 5 states have internal predecessors, (1594), 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 20:39:06,738 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:39:06,738 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 314 of 784 [2022-12-13 20:39:06,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:39:06,868 INFO L130 PetriNetUnfolder]: 378/548 cut-off events. [2022-12-13 20:39:06,868 INFO L131 PetriNetUnfolder]: For 361/361 co-relation queries the response was YES. [2022-12-13 20:39:06,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1497 conditions, 548 events. 378/548 cut-off events. For 361/361 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1904 event pairs, 114 based on Foata normal form. 42/576 useless extension candidates. Maximal degree in co-relation 1473. Up to 393 conditions per place. [2022-12-13 20:39:06,871 INFO L137 encePairwiseOnDemand]: 779/784 looper letters, 39 selfloop transitions, 5 changer transitions 0/46 dead transitions. [2022-12-13 20:39:06,871 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 46 transitions, 290 flow [2022-12-13 20:39:06,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 20:39:06,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 20:39:06,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1608 transitions. [2022-12-13 20:39:06,874 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.41020408163265304 [2022-12-13 20:39:06,874 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1608 transitions. [2022-12-13 20:39:06,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1608 transitions. [2022-12-13 20:39:06,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:39:06,875 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1608 transitions. [2022-12-13 20:39:06,877 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 321.6) internal successors, (1608), 5 states have internal predecessors, (1608), 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 20:39:06,881 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 784.0) internal successors, (4704), 6 states have internal predecessors, (4704), 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 20:39:06,882 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 784.0) internal successors, (4704), 6 states have internal predecessors, (4704), 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 20:39:06,882 INFO L175 Difference]: Start difference. First operand has 55 places, 34 transitions, 158 flow. Second operand 5 states and 1608 transitions. [2022-12-13 20:39:06,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 46 transitions, 290 flow [2022-12-13 20:39:06,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 46 transitions, 244 flow, removed 17 selfloop flow, removed 11 redundant places. [2022-12-13 20:39:06,884 INFO L231 Difference]: Finished difference. Result has 37 places, 35 transitions, 141 flow [2022-12-13 20:39:06,884 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=784, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=141, PETRI_PLACES=37, PETRI_TRANSITIONS=35} [2022-12-13 20:39:06,885 INFO L288 CegarLoopForPetriNet]: 32 programPoint places, 5 predicate places. [2022-12-13 20:39:06,885 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 35 transitions, 141 flow [2022-12-13 20:39:06,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 318.8) internal successors, (1594), 5 states have internal predecessors, (1594), 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 20:39:06,886 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:39:06,886 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] [2022-12-13 20:39:06,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a55484-f618-4f7a-88aa-a9630a62b9ae/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 20:39:07,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a55484-f618-4f7a-88aa-a9630a62b9ae/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:39:07,087 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 20:39:07,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:39:07,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1057656175, now seen corresponding path program 1 times [2022-12-13 20:39:07,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:39:07,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535324341] [2022-12-13 20:39:07,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:39:07,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:39:07,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:39:07,189 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 20:39:07,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:39:07,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535324341] [2022-12-13 20:39:07,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535324341] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:39:07,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [842500858] [2022-12-13 20:39:07,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:39:07,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:39:07,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a55484-f618-4f7a-88aa-a9630a62b9ae/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:39:07,191 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a55484-f618-4f7a-88aa-a9630a62b9ae/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:39:07,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a55484-f618-4f7a-88aa-a9630a62b9ae/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 20:39:07,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:39:07,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 20:39:07,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:39:07,315 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 20:39:07,316 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 20:39:07,343 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 20:39:07,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [842500858] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-13 20:39:07,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-13 20:39:07,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 8 [2022-12-13 20:39:07,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950915261] [2022-12-13 20:39:07,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:39:07,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 20:39:07,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:39:07,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 20:39:07,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-12-13 20:39:07,442 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 314 out of 784 [2022-12-13 20:39:07,443 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 35 transitions, 141 flow. Second operand has 5 states, 5 states have (on average 318.8) internal successors, (1594), 5 states have internal predecessors, (1594), 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 20:39:07,443 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:39:07,443 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 314 of 784 [2022-12-13 20:39:07,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:39:07,557 INFO L130 PetriNetUnfolder]: 297/441 cut-off events. [2022-12-13 20:39:07,557 INFO L131 PetriNetUnfolder]: For 260/319 co-relation queries the response was YES. [2022-12-13 20:39:07,558 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1256 conditions, 441 events. 297/441 cut-off events. For 260/319 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1356 event pairs, 93 based on Foata normal form. 87/524 useless extension candidates. Maximal degree in co-relation 1215. Up to 337 conditions per place. [2022-12-13 20:39:07,559 INFO L137 encePairwiseOnDemand]: 779/784 looper letters, 41 selfloop transitions, 5 changer transitions 0/48 dead transitions. [2022-12-13 20:39:07,559 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 48 transitions, 283 flow [2022-12-13 20:39:07,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 20:39:07,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 20:39:07,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1608 transitions. [2022-12-13 20:39:07,563 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.41020408163265304 [2022-12-13 20:39:07,563 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1608 transitions. [2022-12-13 20:39:07,563 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1608 transitions. [2022-12-13 20:39:07,564 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:39:07,564 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1608 transitions. [2022-12-13 20:39:07,566 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 321.6) internal successors, (1608), 5 states have internal predecessors, (1608), 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 20:39:07,569 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 784.0) internal successors, (4704), 6 states have internal predecessors, (4704), 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 20:39:07,570 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 784.0) internal successors, (4704), 6 states have internal predecessors, (4704), 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 20:39:07,570 INFO L175 Difference]: Start difference. First operand has 37 places, 35 transitions, 141 flow. Second operand 5 states and 1608 transitions. [2022-12-13 20:39:07,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 48 transitions, 283 flow [2022-12-13 20:39:07,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 48 transitions, 254 flow, removed 5 selfloop flow, removed 4 redundant places. [2022-12-13 20:39:07,571 INFO L231 Difference]: Finished difference. Result has 38 places, 36 transitions, 139 flow [2022-12-13 20:39:07,571 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=784, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=33, 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=139, PETRI_PLACES=38, PETRI_TRANSITIONS=36} [2022-12-13 20:39:07,572 INFO L288 CegarLoopForPetriNet]: 32 programPoint places, 6 predicate places. [2022-12-13 20:39:07,572 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 36 transitions, 139 flow [2022-12-13 20:39:07,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 318.8) internal successors, (1594), 5 states have internal predecessors, (1594), 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 20:39:07,572 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:39:07,572 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] [2022-12-13 20:39:07,578 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a55484-f618-4f7a-88aa-a9630a62b9ae/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-13 20:39:07,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a55484-f618-4f7a-88aa-a9630a62b9ae/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:39:07,773 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 20:39:07,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:39:07,774 INFO L85 PathProgramCache]: Analyzing trace with hash 164155922, now seen corresponding path program 1 times [2022-12-13 20:39:07,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:39:07,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625875378] [2022-12-13 20:39:07,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:39:07,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:39:07,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:39:07,865 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 20:39:07,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:39:07,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625875378] [2022-12-13 20:39:07,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625875378] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:39:07,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1186891511] [2022-12-13 20:39:07,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:39:07,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:39:07,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a55484-f618-4f7a-88aa-a9630a62b9ae/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:39:07,866 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a55484-f618-4f7a-88aa-a9630a62b9ae/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:39:07,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a55484-f618-4f7a-88aa-a9630a62b9ae/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 20:39:07,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:39:07,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 20:39:07,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:39:07,990 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 20:39:07,990 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 20:39:08,019 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 20:39:08,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1186891511] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-13 20:39:08,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-13 20:39:08,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 8 [2022-12-13 20:39:08,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217128739] [2022-12-13 20:39:08,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:39:08,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 20:39:08,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:39:08,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 20:39:08,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-12-13 20:39:08,125 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 314 out of 784 [2022-12-13 20:39:08,127 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 36 transitions, 139 flow. Second operand has 5 states, 5 states have (on average 319.0) internal successors, (1595), 5 states have internal predecessors, (1595), 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 20:39:08,127 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:39:08,128 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 314 of 784 [2022-12-13 20:39:08,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:39:08,232 INFO L130 PetriNetUnfolder]: 282/422 cut-off events. [2022-12-13 20:39:08,232 INFO L131 PetriNetUnfolder]: For 418/539 co-relation queries the response was YES. [2022-12-13 20:39:08,233 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1273 conditions, 422 events. 282/422 cut-off events. For 418/539 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1297 event pairs, 114 based on Foata normal form. 147/565 useless extension candidates. Maximal degree in co-relation 1233. Up to 333 conditions per place. [2022-12-13 20:39:08,234 INFO L137 encePairwiseOnDemand]: 779/784 looper letters, 43 selfloop transitions, 5 changer transitions 0/50 dead transitions. [2022-12-13 20:39:08,235 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 50 transitions, 293 flow [2022-12-13 20:39:08,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 20:39:08,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 20:39:08,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1608 transitions. [2022-12-13 20:39:08,241 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.41020408163265304 [2022-12-13 20:39:08,242 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1608 transitions. [2022-12-13 20:39:08,242 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1608 transitions. [2022-12-13 20:39:08,242 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:39:08,242 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1608 transitions. [2022-12-13 20:39:08,244 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 321.6) internal successors, (1608), 5 states have internal predecessors, (1608), 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 20:39:08,248 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 784.0) internal successors, (4704), 6 states have internal predecessors, (4704), 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 20:39:08,248 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 784.0) internal successors, (4704), 6 states have internal predecessors, (4704), 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 20:39:08,248 INFO L175 Difference]: Start difference. First operand has 38 places, 36 transitions, 139 flow. Second operand 5 states and 1608 transitions. [2022-12-13 20:39:08,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 50 transitions, 293 flow [2022-12-13 20:39:08,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 50 transitions, 276 flow, removed 4 selfloop flow, removed 3 redundant places. [2022-12-13 20:39:08,250 INFO L231 Difference]: Finished difference. Result has 40 places, 37 transitions, 149 flow [2022-12-13 20:39:08,250 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=784, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=149, PETRI_PLACES=40, PETRI_TRANSITIONS=37} [2022-12-13 20:39:08,250 INFO L288 CegarLoopForPetriNet]: 32 programPoint places, 8 predicate places. [2022-12-13 20:39:08,250 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 37 transitions, 149 flow [2022-12-13 20:39:08,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 319.0) internal successors, (1595), 5 states have internal predecessors, (1595), 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 20:39:08,251 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:39:08,251 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 20:39:08,257 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a55484-f618-4f7a-88aa-a9630a62b9ae/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 20:39:08,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a55484-f618-4f7a-88aa-a9630a62b9ae/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-12-13 20:39:08,452 INFO L420 AbstractCegarLoop]: === Iteration 8 === 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 20:39:08,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:39:08,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1182093027, now seen corresponding path program 1 times [2022-12-13 20:39:08,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:39:08,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288834557] [2022-12-13 20:39:08,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:39:08,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:39:08,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:39:09,589 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 20:39:09,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:39:09,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288834557] [2022-12-13 20:39:09,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288834557] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:39:09,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1162647840] [2022-12-13 20:39:09,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:39:09,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:39:09,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a55484-f618-4f7a-88aa-a9630a62b9ae/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:39:09,591 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a55484-f618-4f7a-88aa-a9630a62b9ae/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:39:09,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a55484-f618-4f7a-88aa-a9630a62b9ae/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 20:39:09,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:39:09,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 83 conjunts are in the unsatisfiable core [2022-12-13 20:39:09,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:39:10,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 20:39:10,032 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 14 treesize of output 16 [2022-12-13 20:39:10,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 20:39:10,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 20:39:10,192 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-13 20:39:10,192 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 26 [2022-12-13 20:39:10,288 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 20:39:10,288 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 23 [2022-12-13 20:39:10,314 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 20:39:10,314 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 20:39:10,455 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_344 (Array Int Int))) (= (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_344))) (+ c_~csum~0 (select (select .cse0 c_~A~0.base) c_~A~0.offset) (select (select .cse0 c_~B~0.base) c_~B~0.offset))) (+ c_~asum~0 c_~bsum~0 (select (select |c_#memory_int| c_~B~0.base) (+ (* |c_thread2Thread1of1ForFork0_~i~1#1| 4) c_~B~0.offset))))) is different from false [2022-12-13 20:39:10,461 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_344 (Array Int Int))) (= (+ c_~asum~0 c_~bsum~0 (select (select |c_#memory_int| c_~B~0.base) c_~B~0.offset)) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_344))) (+ c_~csum~0 (select (select .cse0 c_~A~0.base) c_~A~0.offset) (select (select .cse0 c_~B~0.base) c_~B~0.offset))))) is different from false [2022-12-13 20:39:10,478 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_344 (Array Int Int)) (v_ArrVal_343 (Array Int Int))) (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_343))) (= (let ((.cse0 (store .cse1 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_344))) (+ (select (select .cse0 c_~A~0.base) c_~A~0.offset) c_~csum~0 (select (select .cse0 c_~B~0.base) c_~B~0.offset))) (+ (select (select .cse1 c_~B~0.base) c_~B~0.offset) c_~asum~0 c_~bsum~0)))) is different from false [2022-12-13 20:39:10,513 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 20:39:10,514 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 4342 treesize of output 2970 [2022-12-13 20:39:10,547 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 20:39:10,548 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 2934 treesize of output 2750 [2022-12-13 20:39:10,582 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 20:39:10,582 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 2742 treesize of output 2494