./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-more-max-array.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b 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_3097c37c-bdab-4cd7-b70c-63eb5daa66f6/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097c37c-bdab-4cd7-b70c-63eb5daa66f6/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097c37c-bdab-4cd7-b70c-63eb5daa66f6/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097c37c-bdab-4cd7-b70c-63eb5daa66f6/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-max-array.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097c37c-bdab-4cd7-b70c-63eb5daa66f6/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097c37c-bdab-4cd7-b70c-63eb5daa66f6/bin/uautomizer-ug76WZFUDN --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 a87860dbf851812846995aa918799e2b576306268e8c461660702f868d3b2804 --- 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-6b4ec56 [2022-11-20 12:35:31,911 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:35:31,914 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:35:31,964 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:35:31,965 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:35:31,970 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:35:31,973 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:35:31,977 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:35:31,979 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:35:31,986 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:35:31,988 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:35:31,990 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:35:31,991 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:35:31,994 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:35:31,999 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:35:32,002 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:35:32,003 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:35:32,005 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:35:32,006 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:35:32,010 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:35:32,014 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:35:32,018 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:35:32,020 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:35:32,021 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:35:32,029 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:35:32,034 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:35:32,035 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:35:32,036 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:35:32,038 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:35:32,040 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:35:32,040 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:35:32,041 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:35:32,044 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:35:32,046 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:35:32,048 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:35:32,049 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:35:32,049 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:35:32,050 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:35:32,050 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:35:32,052 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:35:32,053 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:35:32,054 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097c37c-bdab-4cd7-b70c-63eb5daa66f6/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 12:35:32,101 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:35:32,101 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:35:32,102 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:35:32,103 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:35:32,104 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:35:32,104 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:35:32,105 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:35:32,105 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:35:32,106 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:35:32,106 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:35:32,107 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:35:32,108 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:35:32,108 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:35:32,108 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:35:32,109 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:35:32,109 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:35:32,109 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:35:32,109 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:35:32,110 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:35:32,110 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:35:32,110 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:35:32,111 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:35:32,111 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:35:32,111 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:35:32,113 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:35:32,114 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:35:32,114 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:35:32,114 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:35:32,115 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:35:32,115 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:35:32,115 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:35:32,116 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:35:32,116 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:35:32,116 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097c37c-bdab-4cd7-b70c-63eb5daa66f6/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097c37c-bdab-4cd7-b70c-63eb5daa66f6/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a87860dbf851812846995aa918799e2b576306268e8c461660702f868d3b2804 [2022-11-20 12:35:32,509 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:35:32,537 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:35:32,540 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:35:32,542 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:35:32,542 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:35:32,544 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097c37c-bdab-4cd7-b70c-63eb5daa66f6/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/weaver/popl20-more-max-array.wvr.c [2022-11-20 12:35:36,331 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:35:36,603 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:35:36,604 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097c37c-bdab-4cd7-b70c-63eb5daa66f6/sv-benchmarks/c/weaver/popl20-more-max-array.wvr.c [2022-11-20 12:35:36,618 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097c37c-bdab-4cd7-b70c-63eb5daa66f6/bin/uautomizer-ug76WZFUDN/data/3cadf6300/08ca17cf294a494ab5505624291ac1ca/FLAG5b8328c7a [2022-11-20 12:35:36,635 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097c37c-bdab-4cd7-b70c-63eb5daa66f6/bin/uautomizer-ug76WZFUDN/data/3cadf6300/08ca17cf294a494ab5505624291ac1ca [2022-11-20 12:35:36,638 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:35:36,640 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:35:36,642 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:35:36,642 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:35:36,650 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:35:36,651 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:35:36" (1/1) ... [2022-11-20 12:35:36,652 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5928511d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:35:36, skipping insertion in model container [2022-11-20 12:35:36,652 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:35:36" (1/1) ... [2022-11-20 12:35:36,689 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:35:36,758 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:35:36,966 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_3097c37c-bdab-4cd7-b70c-63eb5daa66f6/sv-benchmarks/c/weaver/popl20-more-max-array.wvr.c[2553,2566] [2022-11-20 12:35:36,978 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:35:36,991 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:35:37,017 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_3097c37c-bdab-4cd7-b70c-63eb5daa66f6/sv-benchmarks/c/weaver/popl20-more-max-array.wvr.c[2553,2566] [2022-11-20 12:35:37,022 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:35:37,041 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:35:37,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:35:37 WrapperNode [2022-11-20 12:35:37,041 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:35:37,043 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:35:37,043 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:35:37,043 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:35:37,052 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:35:37" (1/1) ... [2022-11-20 12:35:37,064 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:35:37" (1/1) ... [2022-11-20 12:35:37,091 INFO L138 Inliner]: procedures = 24, calls = 43, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 101 [2022-11-20 12:35:37,091 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:35:37,092 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:35:37,092 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:35:37,093 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:35:37,104 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:35:37" (1/1) ... [2022-11-20 12:35:37,105 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:35:37" (1/1) ... [2022-11-20 12:35:37,109 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:35:37" (1/1) ... [2022-11-20 12:35:37,109 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:35:37" (1/1) ... [2022-11-20 12:35:37,119 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:35:37" (1/1) ... [2022-11-20 12:35:37,125 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:35:37" (1/1) ... [2022-11-20 12:35:37,127 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:35:37" (1/1) ... [2022-11-20 12:35:37,129 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:35:37" (1/1) ... [2022-11-20 12:35:37,132 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:35:37,133 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:35:37,133 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:35:37,134 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:35:37,135 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:35:37" (1/1) ... [2022-11-20 12:35:37,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:35:37,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097c37c-bdab-4cd7-b70c-63eb5daa66f6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:35:37,191 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097c37c-bdab-4cd7-b70c-63eb5daa66f6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:35:37,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097c37c-bdab-4cd7-b70c-63eb5daa66f6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:35:37,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:35:37,235 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-20 12:35:37,235 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-20 12:35:37,235 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-20 12:35:37,235 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-20 12:35:37,236 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-20 12:35:37,236 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-20 12:35:37,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 12:35:37,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:35:37,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 12:35:37,237 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 12:35:37,237 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 12:35:37,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 12:35:37,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:35:37,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:35:37,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 12:35:37,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:35:37,240 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 12:35:37,380 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:35:37,384 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:35:37,848 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:35:37,982 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:35:37,983 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-20 12:35:37,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:35:37 BoogieIcfgContainer [2022-11-20 12:35:37,986 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:35:37,990 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:35:37,990 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:35:37,995 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:35:37,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:35:36" (1/3) ... [2022-11-20 12:35:37,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c273116 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:35:37, skipping insertion in model container [2022-11-20 12:35:37,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:35:37" (2/3) ... [2022-11-20 12:35:37,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c273116 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:35:37, skipping insertion in model container [2022-11-20 12:35:37,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:35:37" (3/3) ... [2022-11-20 12:35:37,999 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-max-array.wvr.c [2022-11-20 12:35:38,011 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 12:35:38,023 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:35:38,023 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 12:35:38,023 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 12:35:38,128 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-20 12:35:38,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 151 places, 153 transitions, 330 flow [2022-11-20 12:35:38,334 INFO L130 PetriNetUnfolder]: 12/150 cut-off events. [2022-11-20 12:35:38,337 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-20 12:35:38,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 150 events. 12/150 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 92 event pairs, 0 based on Foata normal form. 0/137 useless extension candidates. Maximal degree in co-relation 112. Up to 2 conditions per place. [2022-11-20 12:35:38,344 INFO L82 GeneralOperation]: Start removeDead. Operand has 151 places, 153 transitions, 330 flow [2022-11-20 12:35:38,352 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 137 places, 139 transitions, 296 flow [2022-11-20 12:35:38,365 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:35:38,375 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;@37a6a48c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:35:38,375 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-20 12:35:38,424 INFO L130 PetriNetUnfolder]: 12/138 cut-off events. [2022-11-20 12:35:38,424 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-20 12:35:38,424 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:35:38,425 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:35:38,426 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)] === [2022-11-20 12:35:38,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:35:38,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1463698298, now seen corresponding path program 1 times [2022-11-20 12:35:38,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:35:38,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612418073] [2022-11-20 12:35:38,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:35:38,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:35:38,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:35:38,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:35:38,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:35:38,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612418073] [2022-11-20 12:35:38,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612418073] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:35:38,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:35:38,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:35:38,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875027274] [2022-11-20 12:35:38,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:35:38,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 12:35:38,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:35:38,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 12:35:38,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 12:35:38,853 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 153 [2022-11-20 12:35:38,857 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 139 transitions, 296 flow. Second operand has 2 states, 2 states have (on average 140.0) internal successors, (280), 2 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:35:38,857 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:35:38,858 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 153 [2022-11-20 12:35:38,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:35:39,112 INFO L130 PetriNetUnfolder]: 41/264 cut-off events. [2022-11-20 12:35:39,112 INFO L131 PetriNetUnfolder]: For 49/50 co-relation queries the response was YES. [2022-11-20 12:35:39,115 INFO L83 FinitePrefix]: Finished finitePrefix Result has 355 conditions, 264 events. 41/264 cut-off events. For 49/50 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 717 event pairs, 15 based on Foata normal form. 42/275 useless extension candidates. Maximal degree in co-relation 216. Up to 59 conditions per place. [2022-11-20 12:35:39,117 INFO L137 encePairwiseOnDemand]: 145/153 looper letters, 9 selfloop transitions, 0 changer transitions 4/131 dead transitions. [2022-11-20 12:35:39,118 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 131 transitions, 298 flow [2022-11-20 12:35:39,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 12:35:39,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-20 12:35:39,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 287 transitions. [2022-11-20 12:35:39,148 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9379084967320261 [2022-11-20 12:35:39,150 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 287 transitions. [2022-11-20 12:35:39,150 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 287 transitions. [2022-11-20 12:35:39,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:35:39,160 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 287 transitions. [2022-11-20 12:35:39,167 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 143.5) internal successors, (287), 2 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:35:39,178 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:35:39,179 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:35:39,182 INFO L175 Difference]: Start difference. First operand has 137 places, 139 transitions, 296 flow. Second operand 2 states and 287 transitions. [2022-11-20 12:35:39,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 131 transitions, 298 flow [2022-11-20 12:35:39,191 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 131 transitions, 286 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-20 12:35:39,195 INFO L231 Difference]: Finished difference. Result has 132 places, 127 transitions, 260 flow [2022-11-20 12:35:39,198 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=260, PETRI_PLACES=132, PETRI_TRANSITIONS=127} [2022-11-20 12:35:39,207 INFO L288 CegarLoopForPetriNet]: 137 programPoint places, -5 predicate places. [2022-11-20 12:35:39,208 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 127 transitions, 260 flow [2022-11-20 12:35:39,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 140.0) internal successors, (280), 2 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:35:39,208 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:35:39,210 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:35:39,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:35:39,211 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)] === [2022-11-20 12:35:39,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:35:39,214 INFO L85 PathProgramCache]: Analyzing trace with hash 563593522, now seen corresponding path program 1 times [2022-11-20 12:35:39,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:35:39,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154039815] [2022-11-20 12:35:39,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:35:39,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:35:39,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:35:40,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:35:40,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:35:40,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154039815] [2022-11-20 12:35:40,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154039815] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:35:40,056 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:35:40,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 12:35:40,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986999333] [2022-11-20 12:35:40,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:35:40,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 12:35:40,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:35:40,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 12:35:40,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-20 12:35:40,063 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 153 [2022-11-20 12:35:40,065 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 127 transitions, 260 flow. Second operand has 8 states, 8 states have (on average 98.5) internal successors, (788), 8 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:35:40,065 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:35:40,065 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 153 [2022-11-20 12:35:40,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:35:40,680 INFO L130 PetriNetUnfolder]: 295/678 cut-off events. [2022-11-20 12:35:40,681 INFO L131 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2022-11-20 12:35:40,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1137 conditions, 678 events. 295/678 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 3005 event pairs, 167 based on Foata normal form. 1/510 useless extension candidates. Maximal degree in co-relation 1134. Up to 421 conditions per place. [2022-11-20 12:35:40,696 INFO L137 encePairwiseOnDemand]: 143/153 looper letters, 44 selfloop transitions, 6 changer transitions 4/135 dead transitions. [2022-11-20 12:35:40,696 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 135 transitions, 384 flow [2022-11-20 12:35:40,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 12:35:40,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-20 12:35:40,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 901 transitions. [2022-11-20 12:35:40,703 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.654320987654321 [2022-11-20 12:35:40,703 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 901 transitions. [2022-11-20 12:35:40,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 901 transitions. [2022-11-20 12:35:40,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:35:40,705 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 901 transitions. [2022-11-20 12:35:40,708 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 100.11111111111111) internal successors, (901), 9 states have internal predecessors, (901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:35:40,715 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 153.0) internal successors, (1530), 10 states have internal predecessors, (1530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:35:40,716 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 153.0) internal successors, (1530), 10 states have internal predecessors, (1530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:35:40,717 INFO L175 Difference]: Start difference. First operand has 132 places, 127 transitions, 260 flow. Second operand 9 states and 901 transitions. [2022-11-20 12:35:40,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 135 transitions, 384 flow [2022-11-20 12:35:40,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 135 transitions, 384 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 12:35:40,727 INFO L231 Difference]: Finished difference. Result has 140 places, 128 transitions, 286 flow [2022-11-20 12:35:40,727 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=286, PETRI_PLACES=140, PETRI_TRANSITIONS=128} [2022-11-20 12:35:40,728 INFO L288 CegarLoopForPetriNet]: 137 programPoint places, 3 predicate places. [2022-11-20 12:35:40,730 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 128 transitions, 286 flow [2022-11-20 12:35:40,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 98.5) internal successors, (788), 8 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:35:40,731 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:35:40,731 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:35:40,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 12:35:40,732 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)] === [2022-11-20 12:35:40,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:35:40,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1756520908, now seen corresponding path program 1 times [2022-11-20 12:35:40,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:35:40,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092561913] [2022-11-20 12:35:40,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:35:40,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:35:40,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:35:41,140 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:35:41,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:35:41,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092561913] [2022-11-20 12:35:41,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092561913] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:35:41,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1557327900] [2022-11-20 12:35:41,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:35:41,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:35:41,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097c37c-bdab-4cd7-b70c-63eb5daa66f6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:35:41,151 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097c37c-bdab-4cd7-b70c-63eb5daa66f6/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:35:41,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097c37c-bdab-4cd7-b70c-63eb5daa66f6/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 12:35:41,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:35:41,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 12:35:41,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:35:41,678 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:35:41,678 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:35:42,005 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:35:42,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1557327900] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 12:35:42,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-20 12:35:42,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2022-11-20 12:35:42,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672394378] [2022-11-20 12:35:42,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:35:42,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:35:42,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:35:42,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:35:42,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-11-20 12:35:42,013 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 153 [2022-11-20 12:35:42,015 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 128 transitions, 286 flow. Second operand has 7 states, 7 states have (on average 116.42857142857143) internal successors, (815), 7 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:35:42,016 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:35:42,016 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 153 [2022-11-20 12:35:42,016 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:35:42,348 INFO L130 PetriNetUnfolder]: 182/617 cut-off events. [2022-11-20 12:35:42,349 INFO L131 PetriNetUnfolder]: For 25/25 co-relation queries the response was YES. [2022-11-20 12:35:42,353 INFO L83 FinitePrefix]: Finished finitePrefix Result has 942 conditions, 617 events. 182/617 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 3083 event pairs, 80 based on Foata normal form. 0/526 useless extension candidates. Maximal degree in co-relation 934. Up to 141 conditions per place. [2022-11-20 12:35:42,359 INFO L137 encePairwiseOnDemand]: 145/153 looper letters, 33 selfloop transitions, 7 changer transitions 0/136 dead transitions. [2022-11-20 12:35:42,361 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 136 transitions, 384 flow [2022-11-20 12:35:42,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:35:42,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-20 12:35:42,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 831 transitions. [2022-11-20 12:35:42,366 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7759103641456583 [2022-11-20 12:35:42,366 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 831 transitions. [2022-11-20 12:35:42,366 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 831 transitions. [2022-11-20 12:35:42,367 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:35:42,367 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 831 transitions. [2022-11-20 12:35:42,370 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 118.71428571428571) internal successors, (831), 7 states have internal predecessors, (831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:35:42,374 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 153.0) internal successors, (1224), 8 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:35:42,375 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 153.0) internal successors, (1224), 8 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:35:42,375 INFO L175 Difference]: Start difference. First operand has 140 places, 128 transitions, 286 flow. Second operand 7 states and 831 transitions. [2022-11-20 12:35:42,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 136 transitions, 384 flow [2022-11-20 12:35:42,380 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 136 transitions, 368 flow, removed 3 selfloop flow, removed 7 redundant places. [2022-11-20 12:35:42,384 INFO L231 Difference]: Finished difference. Result has 139 places, 130 transitions, 303 flow [2022-11-20 12:35:42,385 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=303, PETRI_PLACES=139, PETRI_TRANSITIONS=130} [2022-11-20 12:35:42,391 INFO L288 CegarLoopForPetriNet]: 137 programPoint places, 2 predicate places. [2022-11-20 12:35:42,392 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 130 transitions, 303 flow [2022-11-20 12:35:42,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 116.42857142857143) internal successors, (815), 7 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:35:42,393 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:35:42,394 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:35:42,410 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097c37c-bdab-4cd7-b70c-63eb5daa66f6/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 12:35:42,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097c37c-bdab-4cd7-b70c-63eb5daa66f6/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:35:42,603 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)] === [2022-11-20 12:35:42,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:35:42,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1514646045, now seen corresponding path program 1 times [2022-11-20 12:35:42,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:35:42,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098897339] [2022-11-20 12:35:42,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:35:42,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:35:42,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:35:43,078 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 12:35:43,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:35:43,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098897339] [2022-11-20 12:35:43,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098897339] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:35:43,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [164408005] [2022-11-20 12:35:43,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:35:43,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:35:43,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097c37c-bdab-4cd7-b70c-63eb5daa66f6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:35:43,082 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097c37c-bdab-4cd7-b70c-63eb5daa66f6/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:35:43,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097c37c-bdab-4cd7-b70c-63eb5daa66f6/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 12:35:43,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:35:43,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 12:35:43,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:35:43,563 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 12:35:43,567 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:35:43,934 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 12:35:43,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [164408005] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 12:35:43,936 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-20 12:35:43,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10, 9] total 18 [2022-11-20 12:35:43,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249963241] [2022-11-20 12:35:43,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:35:43,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 12:35:43,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:35:43,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 12:35:43,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-11-20 12:35:43,949 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 153 [2022-11-20 12:35:43,951 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 130 transitions, 303 flow. Second operand has 9 states, 9 states have (on average 109.33333333333333) internal successors, (984), 9 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:35:43,951 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:35:43,951 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 153 [2022-11-20 12:35:43,951 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:35:44,691 INFO L130 PetriNetUnfolder]: 854/1551 cut-off events. [2022-11-20 12:35:44,691 INFO L131 PetriNetUnfolder]: For 557/813 co-relation queries the response was YES. [2022-11-20 12:35:44,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3288 conditions, 1551 events. 854/1551 cut-off events. For 557/813 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 8602 event pairs, 215 based on Foata normal form. 256/1642 useless extension candidates. Maximal degree in co-relation 3280. Up to 429 conditions per place. [2022-11-20 12:35:44,711 INFO L137 encePairwiseOnDemand]: 142/153 looper letters, 84 selfloop transitions, 17 changer transitions 0/190 dead transitions. [2022-11-20 12:35:44,711 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 190 transitions, 676 flow [2022-11-20 12:35:44,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 12:35:44,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-20 12:35:44,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1261 transitions. [2022-11-20 12:35:44,716 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7492572786690433 [2022-11-20 12:35:44,717 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1261 transitions. [2022-11-20 12:35:44,717 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1261 transitions. [2022-11-20 12:35:44,718 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:35:44,718 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1261 transitions. [2022-11-20 12:35:44,724 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 114.63636363636364) internal successors, (1261), 11 states have internal predecessors, (1261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:35:44,728 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 153.0) internal successors, (1836), 12 states have internal predecessors, (1836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:35:44,732 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 153.0) internal successors, (1836), 12 states have internal predecessors, (1836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:35:44,732 INFO L175 Difference]: Start difference. First operand has 139 places, 130 transitions, 303 flow. Second operand 11 states and 1261 transitions. [2022-11-20 12:35:44,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 190 transitions, 676 flow [2022-11-20 12:35:44,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 190 transitions, 663 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 12:35:44,744 INFO L231 Difference]: Finished difference. Result has 149 places, 141 transitions, 383 flow [2022-11-20 12:35:44,745 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=295, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=383, PETRI_PLACES=149, PETRI_TRANSITIONS=141} [2022-11-20 12:35:44,746 INFO L288 CegarLoopForPetriNet]: 137 programPoint places, 12 predicate places. [2022-11-20 12:35:44,747 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 141 transitions, 383 flow [2022-11-20 12:35:44,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 109.33333333333333) internal successors, (984), 9 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:35:44,748 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:35:44,748 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:35:44,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097c37c-bdab-4cd7-b70c-63eb5daa66f6/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 12:35:44,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097c37c-bdab-4cd7-b70c-63eb5daa66f6/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:35:44,956 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)] === [2022-11-20 12:35:44,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:35:44,957 INFO L85 PathProgramCache]: Analyzing trace with hash -264680869, now seen corresponding path program 2 times [2022-11-20 12:35:44,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:35:44,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959686768] [2022-11-20 12:35:44,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:35:44,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:35:45,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:35:45,303 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 12:35:45,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:35:45,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959686768] [2022-11-20 12:35:45,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959686768] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:35:45,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2038291699] [2022-11-20 12:35:45,306 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:35:45,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:35:45,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097c37c-bdab-4cd7-b70c-63eb5daa66f6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:35:45,310 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097c37c-bdab-4cd7-b70c-63eb5daa66f6/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:35:45,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097c37c-bdab-4cd7-b70c-63eb5daa66f6/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 12:35:45,470 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 12:35:45,470 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:35:45,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 12:35:45,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:35:45,866 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 12:35:45,867 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:35:45,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2038291699] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:35:45,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:35:45,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2022-11-20 12:35:45,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247737641] [2022-11-20 12:35:45,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:35:45,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:35:45,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:35:45,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:35:45,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-11-20 12:35:45,872 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 153 [2022-11-20 12:35:45,873 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 141 transitions, 383 flow. Second operand has 6 states, 6 states have (on average 106.5) internal successors, (639), 6 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:35:45,873 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:35:45,874 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 153 [2022-11-20 12:35:45,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:35:46,512 INFO L130 PetriNetUnfolder]: 617/1313 cut-off events. [2022-11-20 12:35:46,512 INFO L131 PetriNetUnfolder]: For 865/1079 co-relation queries the response was YES. [2022-11-20 12:35:46,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3058 conditions, 1313 events. 617/1313 cut-off events. For 865/1079 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 7315 event pairs, 178 based on Foata normal form. 241/1517 useless extension candidates. Maximal degree in co-relation 3046. Up to 535 conditions per place. [2022-11-20 12:35:46,529 INFO L137 encePairwiseOnDemand]: 144/153 looper letters, 48 selfloop transitions, 13 changer transitions 0/154 dead transitions. [2022-11-20 12:35:46,529 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 154 transitions, 558 flow [2022-11-20 12:35:46,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 12:35:46,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-20 12:35:46,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 857 transitions. [2022-11-20 12:35:46,534 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7001633986928104 [2022-11-20 12:35:46,534 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 857 transitions. [2022-11-20 12:35:46,534 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 857 transitions. [2022-11-20 12:35:46,535 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:35:46,536 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 857 transitions. [2022-11-20 12:35:46,539 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 107.125) internal successors, (857), 8 states have internal predecessors, (857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:35:46,542 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 153.0) internal successors, (1377), 9 states have internal predecessors, (1377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:35:46,544 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 153.0) internal successors, (1377), 9 states have internal predecessors, (1377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:35:46,544 INFO L175 Difference]: Start difference. First operand has 149 places, 141 transitions, 383 flow. Second operand 8 states and 857 transitions. [2022-11-20 12:35:46,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 154 transitions, 558 flow [2022-11-20 12:35:46,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 154 transitions, 551 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 12:35:46,556 INFO L231 Difference]: Finished difference. Result has 154 places, 144 transitions, 444 flow [2022-11-20 12:35:46,557 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=444, PETRI_PLACES=154, PETRI_TRANSITIONS=144} [2022-11-20 12:35:46,558 INFO L288 CegarLoopForPetriNet]: 137 programPoint places, 17 predicate places. [2022-11-20 12:35:46,558 INFO L495 AbstractCegarLoop]: Abstraction has has 154 places, 144 transitions, 444 flow [2022-11-20 12:35:46,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 106.5) internal successors, (639), 6 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:35:46,559 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:35:46,560 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:35:46,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097c37c-bdab-4cd7-b70c-63eb5daa66f6/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-20 12:35:46,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097c37c-bdab-4cd7-b70c-63eb5daa66f6/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:35:46,767 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)] === [2022-11-20 12:35:46,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:35:46,767 INFO L85 PathProgramCache]: Analyzing trace with hash -129815812, now seen corresponding path program 1 times [2022-11-20 12:35:46,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:35:46,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888658647] [2022-11-20 12:35:46,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:35:46,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:35:46,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:35:49,110 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:35:49,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:35:49,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888658647] [2022-11-20 12:35:49,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888658647] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:35:49,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1321354670] [2022-11-20 12:35:49,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:35:49,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:35:49,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097c37c-bdab-4cd7-b70c-63eb5daa66f6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:35:49,114 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097c37c-bdab-4cd7-b70c-63eb5daa66f6/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:35:49,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097c37c-bdab-4cd7-b70c-63eb5daa66f6/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 12:35:49,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:35:49,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-20 12:35:49,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:35:51,043 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 12:35:51,044 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 63 treesize of output 43 [2022-11-20 12:35:52,075 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:35:52,075 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:35:53,130 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 12:35:53,133 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 103 treesize of output 91 [2022-11-20 12:35:54,915 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:35:54,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1321354670] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:35:54,916 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 12:35:54,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 24, 18] total 57 [2022-11-20 12:35:54,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415106953] [2022-11-20 12:35:54,917 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 12:35:54,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2022-11-20 12:35:54,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:35:54,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2022-11-20 12:35:54,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=529, Invalid=2663, Unknown=0, NotChecked=0, Total=3192 [2022-11-20 12:35:54,926 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 153 [2022-11-20 12:35:54,932 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 144 transitions, 444 flow. Second operand has 57 states, 57 states have (on average 68.29824561403508) internal successors, (3893), 57 states have internal predecessors, (3893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:35:54,933 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:35:54,933 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 153 [2022-11-20 12:35:54,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:36:19,430 INFO L130 PetriNetUnfolder]: 12839/20230 cut-off events. [2022-11-20 12:36:19,431 INFO L131 PetriNetUnfolder]: For 21162/21162 co-relation queries the response was YES. [2022-11-20 12:36:19,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54007 conditions, 20230 events. 12839/20230 cut-off events. For 21162/21162 co-relation queries the response was YES. Maximal size of possible extension queue 1014. Compared 148240 event pairs, 882 based on Foata normal form. 2/20087 useless extension candidates. Maximal degree in co-relation 53993. Up to 6258 conditions per place. [2022-11-20 12:36:19,626 INFO L137 encePairwiseOnDemand]: 115/153 looper letters, 889 selfloop transitions, 521 changer transitions 12/1474 dead transitions. [2022-11-20 12:36:19,626 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 1474 transitions, 8204 flow [2022-11-20 12:36:19,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2022-11-20 12:36:19,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2022-11-20 12:36:19,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 10086 transitions. [2022-11-20 12:36:19,661 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48830791575889615 [2022-11-20 12:36:19,661 INFO L72 ComplementDD]: Start complementDD. Operand 135 states and 10086 transitions. [2022-11-20 12:36:19,661 INFO L73 IsDeterministic]: Start isDeterministic. Operand 135 states and 10086 transitions. [2022-11-20 12:36:19,670 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:36:19,670 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 135 states and 10086 transitions. [2022-11-20 12:36:19,702 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 136 states, 135 states have (on average 74.71111111111111) internal successors, (10086), 135 states have internal predecessors, (10086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:36:19,745 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 136 states, 136 states have (on average 153.0) internal successors, (20808), 136 states have internal predecessors, (20808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:36:19,755 INFO L81 ComplementDD]: Finished complementDD. Result has 136 states, 136 states have (on average 153.0) internal successors, (20808), 136 states have internal predecessors, (20808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:36:19,755 INFO L175 Difference]: Start difference. First operand has 154 places, 144 transitions, 444 flow. Second operand 135 states and 10086 transitions. [2022-11-20 12:36:19,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 1474 transitions, 8204 flow [2022-11-20 12:36:20,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 1474 transitions, 8060 flow, removed 17 selfloop flow, removed 5 redundant places. [2022-11-20 12:36:20,293 INFO L231 Difference]: Finished difference. Result has 344 places, 697 transitions, 4508 flow [2022-11-20 12:36:20,293 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=427, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=135, PETRI_FLOW=4508, PETRI_PLACES=344, PETRI_TRANSITIONS=697} [2022-11-20 12:36:20,297 INFO L288 CegarLoopForPetriNet]: 137 programPoint places, 207 predicate places. [2022-11-20 12:36:20,297 INFO L495 AbstractCegarLoop]: Abstraction has has 344 places, 697 transitions, 4508 flow [2022-11-20 12:36:20,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 57 states have (on average 68.29824561403508) internal successors, (3893), 57 states have internal predecessors, (3893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:36:20,300 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:36:20,300 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:36:20,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097c37c-bdab-4cd7-b70c-63eb5daa66f6/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-20 12:36:20,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097c37c-bdab-4cd7-b70c-63eb5daa66f6/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:36:20,507 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)] === [2022-11-20 12:36:20,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:36:20,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1027524872, now seen corresponding path program 2 times [2022-11-20 12:36:20,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:36:20,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709186282] [2022-11-20 12:36:20,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:36:20,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:36:20,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:36:22,887 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:36:22,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:36:22,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709186282] [2022-11-20 12:36:22,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709186282] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:36:22,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [285762062] [2022-11-20 12:36:22,888 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:36:22,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:36:22,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097c37c-bdab-4cd7-b70c-63eb5daa66f6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:36:22,891 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097c37c-bdab-4cd7-b70c-63eb5daa66f6/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:36:22,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097c37c-bdab-4cd7-b70c-63eb5daa66f6/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-20 12:36:23,047 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 12:36:23,048 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:36:23,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-20 12:36:23,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:36:24,004 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 12:36:24,005 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 69 treesize of output 43 [2022-11-20 12:36:24,947 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 12:36:24,947 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:36:25,300 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 12:36:25,301 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 87 treesize of output 51 [2022-11-20 12:36:26,077 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 12:36:26,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [285762062] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:36:26,077 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 12:36:26,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 16, 15] total 43 [2022-11-20 12:36:26,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484753551] [2022-11-20 12:36:26,078 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 12:36:26,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-11-20 12:36:26,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:36:26,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-11-20 12:36:26,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=277, Invalid=1529, Unknown=0, NotChecked=0, Total=1806 [2022-11-20 12:36:26,084 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 153 [2022-11-20 12:36:26,088 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 344 places, 697 transitions, 4508 flow. Second operand has 43 states, 43 states have (on average 69.25581395348837) internal successors, (2978), 43 states have internal predecessors, (2978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:36:26,089 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:36:26,089 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 153 [2022-11-20 12:36:26,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:36:47,769 INFO L130 PetriNetUnfolder]: 18441/29735 cut-off events. [2022-11-20 12:36:47,769 INFO L131 PetriNetUnfolder]: For 212199/212716 co-relation queries the response was YES. [2022-11-20 12:36:48,068 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123697 conditions, 29735 events. 18441/29735 cut-off events. For 212199/212716 co-relation queries the response was YES. Maximal size of possible extension queue 1584. Compared 239310 event pairs, 3007 based on Foata normal form. 71/29644 useless extension candidates. Maximal degree in co-relation 123623. Up to 14397 conditions per place. [2022-11-20 12:36:48,471 INFO L137 encePairwiseOnDemand]: 116/153 looper letters, 818 selfloop transitions, 797 changer transitions 14/1681 dead transitions. [2022-11-20 12:36:48,472 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 424 places, 1681 transitions, 14950 flow [2022-11-20 12:36:48,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-11-20 12:36:48,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2022-11-20 12:36:48,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 6268 transitions. [2022-11-20 12:36:48,499 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4819684736639754 [2022-11-20 12:36:48,499 INFO L72 ComplementDD]: Start complementDD. Operand 85 states and 6268 transitions. [2022-11-20 12:36:48,500 INFO L73 IsDeterministic]: Start isDeterministic. Operand 85 states and 6268 transitions. [2022-11-20 12:36:48,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:36:48,507 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 85 states and 6268 transitions. [2022-11-20 12:36:48,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 86 states, 85 states have (on average 73.74117647058823) internal successors, (6268), 85 states have internal predecessors, (6268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:36:48,564 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 86 states, 86 states have (on average 153.0) internal successors, (13158), 86 states have internal predecessors, (13158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:36:48,570 INFO L81 ComplementDD]: Finished complementDD. Result has 86 states, 86 states have (on average 153.0) internal successors, (13158), 86 states have internal predecessors, (13158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:36:48,570 INFO L175 Difference]: Start difference. First operand has 344 places, 697 transitions, 4508 flow. Second operand 85 states and 6268 transitions. [2022-11-20 12:36:48,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 424 places, 1681 transitions, 14950 flow [2022-11-20 12:36:52,715 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 409 places, 1681 transitions, 14698 flow, removed 69 selfloop flow, removed 15 redundant places. [2022-11-20 12:36:52,736 INFO L231 Difference]: Finished difference. Result has 458 places, 1257 transitions, 11786 flow [2022-11-20 12:36:52,737 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=4364, PETRI_DIFFERENCE_MINUEND_PLACES=325, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=697, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=299, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=85, PETRI_FLOW=11786, PETRI_PLACES=458, PETRI_TRANSITIONS=1257} [2022-11-20 12:36:52,738 INFO L288 CegarLoopForPetriNet]: 137 programPoint places, 321 predicate places. [2022-11-20 12:36:52,739 INFO L495 AbstractCegarLoop]: Abstraction has has 458 places, 1257 transitions, 11786 flow [2022-11-20 12:36:52,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 69.25581395348837) internal successors, (2978), 43 states have internal predecessors, (2978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:36:52,740 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:36:52,741 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:36:52,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097c37c-bdab-4cd7-b70c-63eb5daa66f6/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-20 12:36:52,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097c37c-bdab-4cd7-b70c-63eb5daa66f6/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:36:52,948 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)] === [2022-11-20 12:36:52,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:36:52,949 INFO L85 PathProgramCache]: Analyzing trace with hash -224391880, now seen corresponding path program 3 times [2022-11-20 12:36:52,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:36:52,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409281648] [2022-11-20 12:36:52,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:36:52,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:36:53,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:36:55,469 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:36:55,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:36:55,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409281648] [2022-11-20 12:36:55,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409281648] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:36:55,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [484119180] [2022-11-20 12:36:55,471 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 12:36:55,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:36:55,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097c37c-bdab-4cd7-b70c-63eb5daa66f6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:36:55,472 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097c37c-bdab-4cd7-b70c-63eb5daa66f6/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:36:55,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097c37c-bdab-4cd7-b70c-63eb5daa66f6/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-20 12:36:55,641 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-20 12:36:55,641 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:36:55,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 42 conjunts are in the unsatisfiable core [2022-11-20 12:36:55,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:36:57,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:36:57,579 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 35 treesize of output 33 [2022-11-20 12:36:57,967 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 12:36:57,968 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 63 treesize of output 43 [2022-11-20 12:36:58,889 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:36:58,889 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:36:59,596 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 12:36:59,597 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 143 treesize of output 107 [2022-11-20 12:36:59,604 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 66 [2022-11-20 12:36:59,612 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 54 [2022-11-20 12:37:01,898 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:37:01,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [484119180] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:37:01,899 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 12:37:01,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 26, 25] total 65 [2022-11-20 12:37:01,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542277717] [2022-11-20 12:37:01,900 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 12:37:01,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2022-11-20 12:37:01,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:37:01,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2022-11-20 12:37:01,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=394, Invalid=3763, Unknown=3, NotChecked=0, Total=4160 [2022-11-20 12:37:01,908 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 153 [2022-11-20 12:37:01,913 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 458 places, 1257 transitions, 11786 flow. Second operand has 65 states, 65 states have (on average 57.01538461538462) internal successors, (3706), 65 states have internal predecessors, (3706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:37:01,913 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:37:01,913 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 153 [2022-11-20 12:37:01,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:37:31,911 INFO L130 PetriNetUnfolder]: 22739/37151 cut-off events. [2022-11-20 12:37:31,912 INFO L131 PetriNetUnfolder]: For 537690/538045 co-relation queries the response was YES. [2022-11-20 12:37:32,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 197867 conditions, 37151 events. 22739/37151 cut-off events. For 537690/538045 co-relation queries the response was YES. Maximal size of possible extension queue 1975. Compared 312544 event pairs, 3239 based on Foata normal form. 63/36969 useless extension candidates. Maximal degree in co-relation 197749. Up to 14835 conditions per place. [2022-11-20 12:37:33,094 INFO L137 encePairwiseOnDemand]: 117/153 looper letters, 878 selfloop transitions, 1011 changer transitions 8/1942 dead transitions. [2022-11-20 12:37:33,094 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 521 places, 1942 transitions, 22642 flow [2022-11-20 12:37:33,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-11-20 12:37:33,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2022-11-20 12:37:33,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 4230 transitions. [2022-11-20 12:37:33,109 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.40657439446366783 [2022-11-20 12:37:33,109 INFO L72 ComplementDD]: Start complementDD. Operand 68 states and 4230 transitions. [2022-11-20 12:37:33,109 INFO L73 IsDeterministic]: Start isDeterministic. Operand 68 states and 4230 transitions. [2022-11-20 12:37:33,111 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:37:33,111 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 68 states and 4230 transitions. [2022-11-20 12:37:33,120 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 69 states, 68 states have (on average 62.205882352941174) internal successors, (4230), 68 states have internal predecessors, (4230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:37:33,142 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 69 states, 69 states have (on average 153.0) internal successors, (10557), 69 states have internal predecessors, (10557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:37:33,147 INFO L81 ComplementDD]: Finished complementDD. Result has 69 states, 69 states have (on average 153.0) internal successors, (10557), 69 states have internal predecessors, (10557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:37:33,147 INFO L175 Difference]: Start difference. First operand has 458 places, 1257 transitions, 11786 flow. Second operand 68 states and 4230 transitions. [2022-11-20 12:37:33,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 521 places, 1942 transitions, 22642 flow [2022-11-20 12:37:48,529 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 503 places, 1942 transitions, 21851 flow, removed 381 selfloop flow, removed 18 redundant places. [2022-11-20 12:37:48,557 INFO L231 Difference]: Finished difference. Result has 532 places, 1582 transitions, 18488 flow [2022-11-20 12:37:48,560 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=11231, PETRI_DIFFERENCE_MINUEND_PLACES=436, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1257, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=709, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=462, PETRI_DIFFERENCE_SUBTRAHEND_STATES=68, PETRI_FLOW=18488, PETRI_PLACES=532, PETRI_TRANSITIONS=1582} [2022-11-20 12:37:48,561 INFO L288 CegarLoopForPetriNet]: 137 programPoint places, 395 predicate places. [2022-11-20 12:37:48,561 INFO L495 AbstractCegarLoop]: Abstraction has has 532 places, 1582 transitions, 18488 flow [2022-11-20 12:37:48,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 65 states have (on average 57.01538461538462) internal successors, (3706), 65 states have internal predecessors, (3706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:37:48,563 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:37:48,564 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:37:48,571 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097c37c-bdab-4cd7-b70c-63eb5daa66f6/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-20 12:37:48,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097c37c-bdab-4cd7-b70c-63eb5daa66f6/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-20 12:37:48,772 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-20 12:37:48,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:37:48,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1742386318, now seen corresponding path program 4 times [2022-11-20 12:37:48,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:37:48,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188621560] [2022-11-20 12:37:48,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:37:48,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:37:48,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:37:51,312 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:37:51,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:37:51,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188621560] [2022-11-20 12:37:51,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188621560] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:37:51,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [971777606] [2022-11-20 12:37:51,312 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-20 12:37:51,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:37:51,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097c37c-bdab-4cd7-b70c-63eb5daa66f6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:37:51,315 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097c37c-bdab-4cd7-b70c-63eb5daa66f6/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:37:51,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097c37c-bdab-4cd7-b70c-63eb5daa66f6/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-20 12:37:51,491 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-20 12:37:51,491 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:37:51,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 55 conjunts are in the unsatisfiable core [2022-11-20 12:37:51,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:37:52,689 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-20 12:37:53,740 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 12:37:54,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:37:54,313 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 35 treesize of output 33 [2022-11-20 12:37:54,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:37:54,614 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 35 treesize of output 33 [2022-11-20 12:37:55,075 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 12:37:55,076 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 63 treesize of output 43 [2022-11-20 12:37:56,062 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:37:56,062 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:37:56,835 WARN L837 $PredicateComparison]: unable to prove that (and (forall ((~M~0 Int) (v_ArrVal_258 (Array Int Int))) (let ((.cse0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_258) c_~A~0.base) (+ c_~A~0.offset (* ~M~0 4))))) (or (<= (+ 2 ~M~0) c_~N~0) (not (< ~M~0 c_~N~0)) (= c_~max1~0 .cse0) (not (< c_~max2~0 .cse0))))) (or (forall ((~M~0 Int) (v_ArrVal_258 (Array Int Int))) (or (<= (+ 2 ~M~0) c_~N~0) (not (< ~M~0 c_~N~0)) (< c_~max2~0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_258) c_~A~0.base) (+ c_~A~0.offset (* ~M~0 4)))))) (= c_~max1~0 c_~max2~0))) is different from false [2022-11-20 12:37:57,082 WARN L837 $PredicateComparison]: unable to prove that (and (forall ((~M~0 Int) (v_ArrVal_258 (Array Int Int)) (v_ArrVal_257 (Array Int Int))) (let ((.cse0 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_257) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_258) c_~A~0.base) (+ c_~A~0.offset (* ~M~0 4))))) (or (<= (+ 2 ~M~0) c_~N~0) (not (< ~M~0 c_~N~0)) (= c_~max1~0 .cse0) (not (< c_~max2~0 .cse0))))) (or (forall ((~M~0 Int) (v_ArrVal_258 (Array Int Int)) (v_ArrVal_257 (Array Int Int))) (or (<= (+ 2 ~M~0) c_~N~0) (not (< ~M~0 c_~N~0)) (< c_~max2~0 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_257) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_258) c_~A~0.base) (+ c_~A~0.offset (* ~M~0 4)))))) (= c_~max1~0 c_~max2~0))) is different from false [2022-11-20 12:38:01,872 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse3 (select (select |c_#memory_int| c_~A~0.base) c_~A~0.offset))) (let ((.cse2 (forall ((~M~0 Int) (v_ArrVal_258 (Array Int Int)) (v_ArrVal_257 (Array Int Int))) (or (<= (+ 2 ~M~0) c_~N~0) (not (< ~M~0 c_~N~0)) (< c_~max2~0 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_257) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_258) c_~A~0.base) (+ c_~A~0.offset (* ~M~0 4))))))) (.cse0 (< c_~max1~0 .cse3))) (and (or .cse0 (and (forall ((~M~0 Int) (v_ArrVal_258 (Array Int Int)) (v_ArrVal_257 (Array Int Int))) (let ((.cse1 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_257) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_258) c_~A~0.base) (+ c_~A~0.offset (* ~M~0 4))))) (or (<= (+ 2 ~M~0) c_~N~0) (not (< ~M~0 c_~N~0)) (= c_~max1~0 .cse1) (not (< c_~max2~0 .cse1))))) (or .cse2 (= c_~max1~0 c_~max2~0)))) (or (and (or .cse2 (= .cse3 c_~max2~0)) (forall ((~M~0 Int) (v_ArrVal_258 (Array Int Int)) (v_ArrVal_257 (Array Int Int))) (let ((.cse4 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_257) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_258) c_~A~0.base) (+ c_~A~0.offset (* ~M~0 4))))) (or (<= (+ 2 ~M~0) c_~N~0) (not (< ~M~0 c_~N~0)) (not (< c_~max2~0 .cse4)) (= .cse3 .cse4))))) (not .cse0))))) is different from false [2022-11-20 12:38:02,722 WARN L837 $PredicateComparison]: unable to prove that (and (or (= c_~max1~0 c_~max2~0) (forall ((~M~0 Int) (v_ArrVal_256 (Array Int Int)) (v_ArrVal_258 (Array Int Int)) (v_ArrVal_257 (Array Int Int))) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_256))) (or (<= (+ 2 ~M~0) c_~N~0) (not (< ~M~0 c_~N~0)) (< c_~max1~0 (select (select .cse0 c_~A~0.base) c_~A~0.offset)) (< c_~max2~0 (select (select (store (store .cse0 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_257) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_258) c_~A~0.base) (+ c_~A~0.offset (* ~M~0 4)))))))) (forall ((v_ArrVal_256 (Array Int Int))) (let ((.cse3 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_256))) (let ((.cse1 (select (select .cse3 c_~A~0.base) c_~A~0.offset))) (or (not (< c_~max1~0 .cse1)) (forall ((~M~0 Int) (v_ArrVal_258 (Array Int Int)) (v_ArrVal_257 (Array Int Int))) (let ((.cse2 (select (select (store (store .cse3 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_257) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_258) c_~A~0.base) (+ c_~A~0.offset (* ~M~0 4))))) (or (<= (+ 2 ~M~0) c_~N~0) (not (< c_~max2~0 .cse2)) (not (< ~M~0 c_~N~0)) (= .cse2 .cse1)))))))) (forall ((v_ArrVal_256 (Array Int Int))) (let ((.cse5 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_256))) (let ((.cse4 (select (select .cse5 c_~A~0.base) c_~A~0.offset))) (or (not (< c_~max1~0 .cse4)) (= c_~max2~0 .cse4) (forall ((~M~0 Int) (v_ArrVal_258 (Array Int Int)) (v_ArrVal_257 (Array Int Int))) (or (<= (+ 2 ~M~0) c_~N~0) (not (< ~M~0 c_~N~0)) (< c_~max2~0 (select (select (store (store .cse5 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_257) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_258) c_~A~0.base) (+ c_~A~0.offset (* ~M~0 4)))))))))) (forall ((v_ArrVal_256 (Array Int Int))) (let ((.cse6 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_256))) (or (< c_~max1~0 (select (select .cse6 c_~A~0.base) c_~A~0.offset)) (forall ((~M~0 Int) (v_ArrVal_258 (Array Int Int)) (v_ArrVal_257 (Array Int Int))) (let ((.cse7 (select (select (store (store .cse6 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_257) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_258) c_~A~0.base) (+ c_~A~0.offset (* ~M~0 4))))) (or (<= (+ 2 ~M~0) c_~N~0) (not (< c_~max2~0 .cse7)) (not (< ~M~0 c_~N~0)) (= .cse7 c_~max1~0)))))))) is different from false [2022-11-20 12:38:04,052 WARN L837 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_256 (Array Int Int))) (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_256))) (let ((.cse0 (select (select .cse1 |c_ULTIMATE.start_main_#t~ret12#1.base|) |c_ULTIMATE.start_main_#t~ret12#1.offset|))) (or (not (< c_~max1~0 .cse0)) (= .cse0 c_~max2~0) (forall ((~M~0 Int) (v_ArrVal_258 (Array Int Int)) (v_ArrVal_257 (Array Int Int))) (or (<= (+ 2 ~M~0) c_~N~0) (not (< ~M~0 c_~N~0)) (< c_~max2~0 (select (select (store (store .cse1 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_257) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_258) |c_ULTIMATE.start_main_#t~ret12#1.base|) (+ |c_ULTIMATE.start_main_#t~ret12#1.offset| (* ~M~0 4)))))))))) (or (forall ((~M~0 Int) (v_ArrVal_256 (Array Int Int)) (v_ArrVal_258 (Array Int Int)) (v_ArrVal_257 (Array Int Int))) (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_256))) (or (<= (+ 2 ~M~0) c_~N~0) (not (< ~M~0 c_~N~0)) (< c_~max1~0 (select (select .cse2 |c_ULTIMATE.start_main_#t~ret12#1.base|) |c_ULTIMATE.start_main_#t~ret12#1.offset|)) (< c_~max2~0 (select (select (store (store .cse2 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_257) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_258) |c_ULTIMATE.start_main_#t~ret12#1.base|) (+ |c_ULTIMATE.start_main_#t~ret12#1.offset| (* ~M~0 4))))))) (= c_~max1~0 c_~max2~0)) (forall ((v_ArrVal_256 (Array Int Int))) (let ((.cse5 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_256))) (let ((.cse3 (select (select .cse5 |c_ULTIMATE.start_main_#t~ret12#1.base|) |c_ULTIMATE.start_main_#t~ret12#1.offset|))) (or (not (< c_~max1~0 .cse3)) (forall ((~M~0 Int) (v_ArrVal_258 (Array Int Int)) (v_ArrVal_257 (Array Int Int))) (let ((.cse4 (select (select (store (store .cse5 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_257) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_258) |c_ULTIMATE.start_main_#t~ret12#1.base|) (+ |c_ULTIMATE.start_main_#t~ret12#1.offset| (* ~M~0 4))))) (or (not (< c_~max2~0 .cse4)) (<= (+ 2 ~M~0) c_~N~0) (not (< ~M~0 c_~N~0)) (= .cse3 .cse4)))))))) (forall ((v_ArrVal_256 (Array Int Int))) (let ((.cse7 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_256))) (or (forall ((~M~0 Int) (v_ArrVal_258 (Array Int Int)) (v_ArrVal_257 (Array Int Int))) (let ((.cse6 (select (select (store (store .cse7 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_257) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_258) |c_ULTIMATE.start_main_#t~ret12#1.base|) (+ |c_ULTIMATE.start_main_#t~ret12#1.offset| (* ~M~0 4))))) (or (not (< c_~max2~0 .cse6)) (<= (+ 2 ~M~0) c_~N~0) (not (< ~M~0 c_~N~0)) (= c_~max1~0 .cse6)))) (< c_~max1~0 (select (select .cse7 |c_ULTIMATE.start_main_#t~ret12#1.base|) |c_ULTIMATE.start_main_#t~ret12#1.offset|)))))) is different from false [2022-11-20 12:38:04,324 WARN L837 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_256 (Array Int Int))) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_256))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|) |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|))) (or (forall ((~M~0 Int) (v_ArrVal_258 (Array Int Int)) (v_ArrVal_257 (Array Int Int))) (or (<= (+ 2 ~M~0) c_~N~0) (not (< ~M~0 c_~N~0)) (< c_~max2~0 (select (select (store (store .cse0 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_257) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_258) |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|) (+ (* ~M~0 4) |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|))))) (= .cse1 c_~max2~0) (not (< c_~max1~0 .cse1)))))) (or (= c_~max1~0 c_~max2~0) (forall ((~M~0 Int) (v_ArrVal_256 (Array Int Int)) (v_ArrVal_258 (Array Int Int)) (v_ArrVal_257 (Array Int Int))) (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_256))) (or (<= (+ 2 ~M~0) c_~N~0) (not (< ~M~0 c_~N~0)) (< c_~max1~0 (select (select .cse2 |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|) |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|)) (< c_~max2~0 (select (select (store (store .cse2 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_257) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_258) |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|) (+ (* ~M~0 4) |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|))))))) (forall ((v_ArrVal_256 (Array Int Int))) (let ((.cse5 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_256))) (let ((.cse3 (select (select .cse5 |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|) |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|))) (or (forall ((~M~0 Int) (v_ArrVal_258 (Array Int Int)) (v_ArrVal_257 (Array Int Int))) (let ((.cse4 (select (select (store (store .cse5 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_257) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_258) |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|) (+ (* ~M~0 4) |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|)))) (or (<= (+ 2 ~M~0) c_~N~0) (not (< ~M~0 c_~N~0)) (= .cse3 .cse4) (not (< c_~max2~0 .cse4))))) (not (< c_~max1~0 .cse3)))))) (forall ((v_ArrVal_256 (Array Int Int))) (let ((.cse6 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_256))) (or (< c_~max1~0 (select (select .cse6 |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|) |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|)) (forall ((~M~0 Int) (v_ArrVal_258 (Array Int Int)) (v_ArrVal_257 (Array Int Int))) (let ((.cse7 (select (select (store (store .cse6 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_257) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_258) |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|) (+ (* ~M~0 4) |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|)))) (or (= c_~max1~0 .cse7) (<= (+ 2 ~M~0) c_~N~0) (not (< ~M~0 c_~N~0)) (not (< c_~max2~0 .cse7))))))))) is different from false [2022-11-20 12:38:04,471 WARN L837 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_256 (Array Int Int))) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_256))) (or (< c_~max1~0 (select (select .cse0 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)) (forall ((~M~0 Int) (v_ArrVal_258 (Array Int Int)) (v_ArrVal_257 (Array Int Int))) (let ((.cse1 (select (select (store (store .cse0 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_257) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_258) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|) (+ (* ~M~0 4) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)))) (or (<= (+ 2 ~M~0) c_~N~0) (not (< ~M~0 c_~N~0)) (not (< c_~max2~0 .cse1)) (= c_~max1~0 .cse1))))))) (forall ((v_ArrVal_256 (Array Int Int))) (let ((.cse4 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_256))) (let ((.cse3 (select (select .cse4 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|))) (or (forall ((~M~0 Int) (v_ArrVal_258 (Array Int Int)) (v_ArrVal_257 (Array Int Int))) (let ((.cse2 (select (select (store (store .cse4 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_257) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_258) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|) (+ (* ~M~0 4) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)))) (or (<= (+ 2 ~M~0) c_~N~0) (not (< ~M~0 c_~N~0)) (not (< c_~max2~0 .cse2)) (= .cse2 .cse3)))) (not (< c_~max1~0 .cse3)))))) (or (forall ((~M~0 Int) (v_ArrVal_256 (Array Int Int)) (v_ArrVal_258 (Array Int Int)) (v_ArrVal_257 (Array Int Int))) (let ((.cse5 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_256))) (or (< c_~max1~0 (select (select .cse5 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)) (<= (+ 2 ~M~0) c_~N~0) (< c_~max2~0 (select (select (store (store .cse5 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_257) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_258) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|) (+ (* ~M~0 4) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|))) (not (< ~M~0 c_~N~0))))) (= c_~max1~0 c_~max2~0)) (forall ((v_ArrVal_256 (Array Int Int))) (let ((.cse7 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_256))) (let ((.cse6 (select (select .cse7 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|))) (or (= .cse6 c_~max2~0) (forall ((~M~0 Int) (v_ArrVal_258 (Array Int Int)) (v_ArrVal_257 (Array Int Int))) (or (<= (+ 2 ~M~0) c_~N~0) (< c_~max2~0 (select (select (store (store .cse7 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_257) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_258) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|) (+ (* ~M~0 4) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|))) (not (< ~M~0 c_~N~0)))) (not (< c_~max1~0 .cse6))))))) is different from false [2022-11-20 12:38:06,463 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 12:38:06,464 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 43 [2022-11-20 12:38:06,487 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 12:38:06,488 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 1243 treesize of output 1185 [2022-11-20 12:38:06,532 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 12:38:06,533 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 1167 treesize of output 1127 [2022-11-20 12:38:06,565 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1110 treesize of output 1014 [2022-11-20 12:38:06,598 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1014 treesize of output 822