./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-divine/ring_1w1r-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b09c85b7 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40e6544-7b02-4dc6-8a34-c387394db2d2/bin/ugemcutter-QpsTfqS70U/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40e6544-7b02-4dc6-8a34-c387394db2d2/bin/ugemcutter-QpsTfqS70U/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40e6544-7b02-4dc6-8a34-c387394db2d2/bin/ugemcutter-QpsTfqS70U/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40e6544-7b02-4dc6-8a34-c387394db2d2/bin/ugemcutter-QpsTfqS70U/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread-divine/ring_1w1r-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40e6544-7b02-4dc6-8a34-c387394db2d2/bin/ugemcutter-QpsTfqS70U/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40e6544-7b02-4dc6-8a34-c387394db2d2/bin/ugemcutter-QpsTfqS70U --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 GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b7e9feb6929ab81158cc9d6731414a71af210f92cb571da2954e02689fee6d2b --- 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-b09c85b [2022-11-08 07:41:51,905 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-08 07:41:51,910 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-08 07:41:51,957 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-08 07:41:51,957 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-08 07:41:51,962 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-08 07:41:51,965 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-08 07:41:51,969 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-08 07:41:51,971 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-08 07:41:51,977 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-08 07:41:51,978 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-08 07:41:51,981 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-08 07:41:51,981 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-08 07:41:51,984 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-08 07:41:51,987 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-08 07:41:51,989 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-08 07:41:51,991 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-08 07:41:51,992 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-08 07:41:51,994 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-08 07:41:52,003 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-08 07:41:52,005 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-08 07:41:52,006 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-08 07:41:52,010 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-08 07:41:52,011 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-08 07:41:52,019 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-08 07:41:52,020 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-08 07:41:52,020 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-08 07:41:52,022 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-08 07:41:52,023 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-08 07:41:52,026 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-08 07:41:52,026 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-08 07:41:52,028 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-08 07:41:52,030 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-08 07:41:52,031 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-08 07:41:52,032 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-08 07:41:52,032 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-08 07:41:52,033 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-08 07:41:52,033 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-08 07:41:52,034 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-08 07:41:52,035 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-08 07:41:52,035 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-08 07:41:52,036 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40e6544-7b02-4dc6-8a34-c387394db2d2/bin/ugemcutter-QpsTfqS70U/config/svcomp-Reach-32bit-GemCutter_Default.epf [2022-11-08 07:41:52,075 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-08 07:41:52,075 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-08 07:41:52,076 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-08 07:41:52,076 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-08 07:41:52,077 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-08 07:41:52,078 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-08 07:41:52,078 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-08 07:41:52,079 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-08 07:41:52,079 INFO L138 SettingsManager]: * Use SBE=true [2022-11-08 07:41:52,079 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-08 07:41:52,080 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-08 07:41:52,081 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-08 07:41:52,081 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-08 07:41:52,081 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-08 07:41:52,081 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-08 07:41:52,082 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-08 07:41:52,082 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-08 07:41:52,082 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-08 07:41:52,082 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-08 07:41:52,082 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-08 07:41:52,083 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-08 07:41:52,083 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-08 07:41:52,083 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-08 07:41:52,083 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-11-08 07:41:52,083 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-08 07:41:52,084 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-08 07:41:52,085 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-08 07:41:52,086 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-08 07:41:52,086 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-08 07:41:52,086 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-08 07:41:52,086 INFO L138 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2022-11-08 07:41:52,087 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-08 07:41:52,087 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-08 07:41:52,087 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-11-08 07:41:52,087 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-08 07:41:52,088 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-11-08 07:41:52,088 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-11-08 07:41:52,088 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_f40e6544-7b02-4dc6-8a34-c387394db2d2/bin/ugemcutter-QpsTfqS70U/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40e6544-7b02-4dc6-8a34-c387394db2d2/bin/ugemcutter-QpsTfqS70U Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7e9feb6929ab81158cc9d6731414a71af210f92cb571da2954e02689fee6d2b [2022-11-08 07:41:52,424 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-08 07:41:52,446 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-08 07:41:52,449 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-08 07:41:52,450 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-08 07:41:52,451 INFO L275 PluginConnector]: CDTParser initialized [2022-11-08 07:41:52,452 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40e6544-7b02-4dc6-8a34-c387394db2d2/bin/ugemcutter-QpsTfqS70U/../../sv-benchmarks/c/pthread-divine/ring_1w1r-2.i [2022-11-08 07:41:52,527 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40e6544-7b02-4dc6-8a34-c387394db2d2/bin/ugemcutter-QpsTfqS70U/data/cc905798f/d556cad2fed045a6ae05b1afdc47e842/FLAGc614f51fc [2022-11-08 07:41:53,211 INFO L306 CDTParser]: Found 1 translation units. [2022-11-08 07:41:53,212 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40e6544-7b02-4dc6-8a34-c387394db2d2/sv-benchmarks/c/pthread-divine/ring_1w1r-2.i [2022-11-08 07:41:53,231 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40e6544-7b02-4dc6-8a34-c387394db2d2/bin/ugemcutter-QpsTfqS70U/data/cc905798f/d556cad2fed045a6ae05b1afdc47e842/FLAGc614f51fc [2022-11-08 07:41:53,401 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40e6544-7b02-4dc6-8a34-c387394db2d2/bin/ugemcutter-QpsTfqS70U/data/cc905798f/d556cad2fed045a6ae05b1afdc47e842 [2022-11-08 07:41:53,405 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-08 07:41:53,408 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-08 07:41:53,413 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-08 07:41:53,414 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-08 07:41:53,417 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-08 07:41:53,418 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:41:53" (1/1) ... [2022-11-08 07:41:53,421 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44bb9561 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:41:53, skipping insertion in model container [2022-11-08 07:41:53,421 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:41:53" (1/1) ... [2022-11-08 07:41:53,429 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-08 07:41:53,492 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-08 07:41:53,723 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-08 07:41:54,038 WARN L230 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_f40e6544-7b02-4dc6-8a34-c387394db2d2/sv-benchmarks/c/pthread-divine/ring_1w1r-2.i[39095,39108] [2022-11-08 07:41:54,045 WARN L230 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_f40e6544-7b02-4dc6-8a34-c387394db2d2/sv-benchmarks/c/pthread-divine/ring_1w1r-2.i[39180,39193] [2022-11-08 07:41:54,046 WARN L230 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_f40e6544-7b02-4dc6-8a34-c387394db2d2/sv-benchmarks/c/pthread-divine/ring_1w1r-2.i[39232,39245] [2022-11-08 07:41:54,057 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-08 07:41:54,063 INFO L203 MainTranslator]: Completed pre-run [2022-11-08 07:41:54,075 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-08 07:41:54,110 WARN L230 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_f40e6544-7b02-4dc6-8a34-c387394db2d2/sv-benchmarks/c/pthread-divine/ring_1w1r-2.i[39095,39108] [2022-11-08 07:41:54,111 WARN L230 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_f40e6544-7b02-4dc6-8a34-c387394db2d2/sv-benchmarks/c/pthread-divine/ring_1w1r-2.i[39180,39193] [2022-11-08 07:41:54,111 WARN L230 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_f40e6544-7b02-4dc6-8a34-c387394db2d2/sv-benchmarks/c/pthread-divine/ring_1w1r-2.i[39232,39245] [2022-11-08 07:41:54,122 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-08 07:41:54,164 INFO L208 MainTranslator]: Completed translation [2022-11-08 07:41:54,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:41:54 WrapperNode [2022-11-08 07:41:54,164 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-08 07:41:54,165 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-08 07:41:54,165 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-08 07:41:54,166 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-08 07:41:54,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:41:54" (1/1) ... [2022-11-08 07:41:54,194 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:41:54" (1/1) ... [2022-11-08 07:41:54,220 INFO L138 Inliner]: procedures = 224, calls = 41, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 125 [2022-11-08 07:41:54,221 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-08 07:41:54,221 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-08 07:41:54,222 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-08 07:41:54,222 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-08 07:41:54,235 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:41:54" (1/1) ... [2022-11-08 07:41:54,235 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:41:54" (1/1) ... [2022-11-08 07:41:54,239 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:41:54" (1/1) ... [2022-11-08 07:41:54,239 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:41:54" (1/1) ... [2022-11-08 07:41:54,248 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:41:54" (1/1) ... [2022-11-08 07:41:54,266 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:41:54" (1/1) ... [2022-11-08 07:41:54,268 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:41:54" (1/1) ... [2022-11-08 07:41:54,269 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:41:54" (1/1) ... [2022-11-08 07:41:54,272 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-08 07:41:54,281 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-08 07:41:54,281 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-08 07:41:54,281 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-08 07:41:54,282 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:41:54" (1/1) ... [2022-11-08 07:41:54,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-08 07:41:54,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40e6544-7b02-4dc6-8a34-c387394db2d2/bin/ugemcutter-QpsTfqS70U/z3 [2022-11-08 07:41:54,319 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40e6544-7b02-4dc6-8a34-c387394db2d2/bin/ugemcutter-QpsTfqS70U/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-08 07:41:54,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40e6544-7b02-4dc6-8a34-c387394db2d2/bin/ugemcutter-QpsTfqS70U/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-08 07:41:54,361 INFO L130 BoogieDeclarations]: Found specification of procedure reader_fn [2022-11-08 07:41:54,361 INFO L138 BoogieDeclarations]: Found implementation of procedure reader_fn [2022-11-08 07:41:54,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-08 07:41:54,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-08 07:41:54,362 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-08 07:41:54,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-08 07:41:54,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-08 07:41:54,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-08 07:41:54,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-08 07:41:54,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-08 07:41:54,364 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-08 07:41:54,495 INFO L235 CfgBuilder]: Building ICFG [2022-11-08 07:41:54,497 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-08 07:41:54,917 INFO L276 CfgBuilder]: Performing block encoding [2022-11-08 07:41:54,926 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-08 07:41:54,926 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-08 07:41:54,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:41:54 BoogieIcfgContainer [2022-11-08 07:41:54,928 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-08 07:41:54,930 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-08 07:41:54,930 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-08 07:41:54,934 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-08 07:41:54,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 07:41:53" (1/3) ... [2022-11-08 07:41:54,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@605726b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:41:54, skipping insertion in model container [2022-11-08 07:41:54,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:41:54" (2/3) ... [2022-11-08 07:41:54,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@605726b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:41:54, skipping insertion in model container [2022-11-08 07:41:54,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:41:54" (3/3) ... [2022-11-08 07:41:54,941 INFO L112 eAbstractionObserver]: Analyzing ICFG ring_1w1r-2.i [2022-11-08 07:41:54,951 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-08 07:41:54,962 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-08 07:41:54,962 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-08 07:41:54,962 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-08 07:41:55,109 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-08 07:41:55,176 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-08 07:41:55,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-08 07:41:55,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40e6544-7b02-4dc6-8a34-c387394db2d2/bin/ugemcutter-QpsTfqS70U/z3 [2022-11-08 07:41:55,180 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40e6544-7b02-4dc6-8a34-c387394db2d2/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-08 07:41:55,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40e6544-7b02-4dc6-8a34-c387394db2d2/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-11-08 07:41:55,217 INFO L156 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-08 07:41:55,232 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == reader_fnThread1of1ForFork0 ======== [2022-11-08 07:41:55,239 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=PARTIAL_ORDER_FA, 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;@70677c34, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-08 07:41:55,239 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-08 07:41:55,323 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION === [reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-08 07:41:55,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-08 07:41:55,329 INFO L85 PathProgramCache]: Analyzing trace with hash -348657922, now seen corresponding path program 1 times [2022-11-08 07:41:55,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-08 07:41:55,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718657362] [2022-11-08 07:41:55,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:41:55,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-08 07:41:55,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:41:55,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-08 07:41:55,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-08 07:41:55,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718657362] [2022-11-08 07:41:55,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718657362] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-08 07:41:55,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-08 07:41:55,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-08 07:41:55,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202604726] [2022-11-08 07:41:55,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-08 07:41:55,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-08 07:41:55,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-08 07:41:55,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-08 07:41:55,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-08 07:41:55,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:41:55,753 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-08 07:41:55,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2022-11-08 07:41:55,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:41:55,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:41:55,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-08 07:41:55,979 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION === [reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-08 07:41:55,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-08 07:41:55,981 INFO L85 PathProgramCache]: Analyzing trace with hash 292971607, now seen corresponding path program 1 times [2022-11-08 07:41:55,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-08 07:41:55,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134525591] [2022-11-08 07:41:55,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:41:55,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-08 07:41:56,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:41:57,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-08 07:41:57,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-08 07:41:57,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134525591] [2022-11-08 07:41:57,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134525591] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-08 07:41:57,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-08 07:41:57,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-08 07:41:57,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441505386] [2022-11-08 07:41:57,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-08 07:41:57,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-08 07:41:57,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-08 07:41:57,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-08 07:41:57,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-11-08 07:41:57,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:41:57,746 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-08 07:41:57,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.611111111111111) internal successors, (83), 18 states have internal predecessors, (83), 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) [2022-11-08 07:41:57,747 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:41:57,747 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:41:59,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:41:59,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-08 07:41:59,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-08 07:41:59,752 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION === [reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-08 07:41:59,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-08 07:41:59,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1522501454, now seen corresponding path program 1 times [2022-11-08 07:41:59,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-08 07:41:59,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229882975] [2022-11-08 07:41:59,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:41:59,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-08 07:41:59,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:42:04,128 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-08 07:42:04,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-08 07:42:04,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229882975] [2022-11-08 07:42:04,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229882975] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-08 07:42:04,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1177046068] [2022-11-08 07:42:04,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:42:04,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-08 07:42:04,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40e6544-7b02-4dc6-8a34-c387394db2d2/bin/ugemcutter-QpsTfqS70U/z3 [2022-11-08 07:42:04,133 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40e6544-7b02-4dc6-8a34-c387394db2d2/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-08 07:42:04,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40e6544-7b02-4dc6-8a34-c387394db2d2/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-08 07:42:04,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:42:04,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 117 conjunts are in the unsatisfiable core [2022-11-08 07:42:04,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-08 07:42:04,360 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-08 07:42:04,379 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-08 07:42:04,380 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-08 07:42:04,451 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-08 07:42:04,486 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-08 07:42:04,581 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 21 [2022-11-08 07:42:06,221 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-08 07:42:06,243 INFO L356 Elim1Store]: treesize reduction 38, result has 30.9 percent of original size [2022-11-08 07:42:06,243 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 38 [2022-11-08 07:42:06,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-08 07:42:06,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-08 07:42:06,923 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-08 07:42:06,923 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 35 [2022-11-08 07:42:07,227 INFO L356 Elim1Store]: treesize reduction 14, result has 17.6 percent of original size [2022-11-08 07:42:07,228 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 22 [2022-11-08 07:42:07,335 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-08 07:42:07,335 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-08 07:42:23,224 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_60 (Array Int Int)) (v_ArrVal_64 Int)) (= (let ((.cse1 (+ |c_ULTIMATE.start_main_~#r~2#1.offset| 20))) (let ((.cse0 (let ((.cse2 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#reader~0#1.base| v_ArrVal_60) |c_ULTIMATE.start_main_~#r~2#1.base|))) (store .cse2 (+ |c_ULTIMATE.start_main_~#r~2#1.offset| (* (select .cse2 .cse1) 4) 4) 1)))) (select (store .cse0 .cse1 v_ArrVal_64) (+ |c_ULTIMATE.start_main_~#r~2#1.offset| (* (select .cse0 |c_ULTIMATE.start_main_~#r~2#1.offset|) 4) 4)))) 1)) is different from false [2022-11-08 07:42:23,254 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_60 (Array Int Int)) (v_ArrVal_64 Int)) (= (let ((.cse1 (+ |c_ULTIMATE.start_main_~#r~2#1.offset| 20))) (let ((.cse0 (let ((.cse2 (select (store (store |c_#memory_int| |c_ULTIMATE.start_ring_init_~r#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_ring_init_~r#1.base|) |c_ULTIMATE.start_ring_init_~r#1.offset| 0)) |c_ULTIMATE.start_main_~#reader~0#1.base| v_ArrVal_60) |c_ULTIMATE.start_main_~#r~2#1.base|))) (store .cse2 (+ |c_ULTIMATE.start_main_~#r~2#1.offset| (* 4 (select .cse2 .cse1)) 4) 1)))) (select (store .cse0 .cse1 v_ArrVal_64) (+ |c_ULTIMATE.start_main_~#r~2#1.offset| (* 4 (select .cse0 |c_ULTIMATE.start_main_~#r~2#1.offset|)) 4)))) 1)) is different from false [2022-11-08 07:42:23,281 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-08 07:42:23,282 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 2 case distinctions, treesize of input 113 treesize of output 80 [2022-11-08 07:42:23,296 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-08 07:42:23,297 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 118 treesize of output 114 [2022-11-08 07:42:23,333 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-08 07:42:23,334 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 628 treesize of output 444 [2022-11-08 07:42:23,447 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 9 [2022-11-08 07:42:23,547 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-08 07:42:23,548 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 649 treesize of output 532 [2022-11-08 07:42:28,694 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-08 07:42:28,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1177046068] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-08 07:42:28,695 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-08 07:42:28,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 37, 33] total 80 [2022-11-08 07:42:28,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466697140] [2022-11-08 07:42:28,695 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-08 07:42:28,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 80 states [2022-11-08 07:42:28,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-08 07:42:28,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2022-11-08 07:42:28,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=292, Invalid=5718, Unknown=4, NotChecked=306, Total=6320 [2022-11-08 07:42:28,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:28,699 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-08 07:42:28,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 80 states, 80 states have (on average 3.125) internal successors, (250), 80 states have internal predecessors, (250), 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) [2022-11-08 07:42:28,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:28,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-11-08 07:42:28,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:36,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:36,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-08 07:42:36,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-11-08 07:42:36,962 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40e6544-7b02-4dc6-8a34-c387394db2d2/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-08 07:42:37,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40e6544-7b02-4dc6-8a34-c387394db2d2/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-08 07:42:37,092 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION === [reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-08 07:42:37,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-08 07:42:37,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1693169020, now seen corresponding path program 1 times [2022-11-08 07:42:37,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-08 07:42:37,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67980550] [2022-11-08 07:42:37,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:42:37,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-08 07:42:37,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:42:37,234 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-08 07:42:37,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-08 07:42:37,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67980550] [2022-11-08 07:42:37,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67980550] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-08 07:42:37,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1047479869] [2022-11-08 07:42:37,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:42:37,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-08 07:42:37,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40e6544-7b02-4dc6-8a34-c387394db2d2/bin/ugemcutter-QpsTfqS70U/z3 [2022-11-08 07:42:37,246 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40e6544-7b02-4dc6-8a34-c387394db2d2/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-08 07:42:37,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40e6544-7b02-4dc6-8a34-c387394db2d2/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-08 07:42:37,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:42:37,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-08 07:42:37,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-08 07:42:37,530 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-08 07:42:37,530 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-08 07:42:37,707 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-08 07:42:37,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1047479869] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-08 07:42:37,707 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-08 07:42:37,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-08 07:42:37,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770533418] [2022-11-08 07:42:37,708 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-08 07:42:37,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-08 07:42:37,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-08 07:42:37,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-08 07:42:37,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-08 07:42:37,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:37,709 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-08 07:42:37,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 36.42857142857143) internal successors, (255), 7 states have internal predecessors, (255), 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) [2022-11-08 07:42:37,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:37,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-11-08 07:42:37,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-11-08 07:42:37,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:37,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:37,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-08 07:42:37,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-11-08 07:42:37,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:42:37,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40e6544-7b02-4dc6-8a34-c387394db2d2/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-08 07:42:38,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40e6544-7b02-4dc6-8a34-c387394db2d2/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-11-08 07:42:38,123 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION === [reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-08 07:42:38,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-08 07:42:38,123 INFO L85 PathProgramCache]: Analyzing trace with hash 2140593561, now seen corresponding path program 1 times [2022-11-08 07:42:38,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-08 07:42:38,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772102718] [2022-11-08 07:42:38,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:42:38,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-08 07:42:38,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:42:42,351 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 30 proven. 13 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-08 07:42:42,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-08 07:42:42,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772102718] [2022-11-08 07:42:42,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772102718] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-08 07:42:42,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1576301819] [2022-11-08 07:42:42,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:42:42,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-08 07:42:42,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40e6544-7b02-4dc6-8a34-c387394db2d2/bin/ugemcutter-QpsTfqS70U/z3 [2022-11-08 07:42:42,355 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40e6544-7b02-4dc6-8a34-c387394db2d2/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-08 07:42:42,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40e6544-7b02-4dc6-8a34-c387394db2d2/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-08 07:42:42,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:42:42,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 123 conjunts are in the unsatisfiable core [2022-11-08 07:42:42,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-08 07:42:42,573 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-08 07:42:42,625 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-08 07:42:42,629 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-08 07:42:42,832 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 13 treesize of output 9 [2022-11-08 07:42:42,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-08 07:42:42,921 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-08 07:42:43,045 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 23 treesize of output 23 [2022-11-08 07:42:44,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-08 07:42:44,923 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-08 07:42:44,943 INFO L356 Elim1Store]: treesize reduction 38, result has 30.9 percent of original size [2022-11-08 07:42:44,944 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 46 treesize of output 41 [2022-11-08 07:42:45,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-08 07:42:45,237 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 30 [2022-11-08 07:42:45,634 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-08 07:42:45,635 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-08 07:42:45,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1576301819] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-08 07:42:45,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-08 07:42:45,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [33] total 59 [2022-11-08 07:42:45,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291959149] [2022-11-08 07:42:45,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-08 07:42:45,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-08 07:42:45,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-08 07:42:45,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-08 07:42:45,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=301, Invalid=3121, Unknown=0, NotChecked=0, Total=3422 [2022-11-08 07:42:45,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:45,649 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-08 07:42:45,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.464285714285714) internal successors, (125), 28 states have internal predecessors, (125), 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) [2022-11-08 07:42:45,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:45,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-11-08 07:42:45,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-11-08 07:42:45,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:42:45,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:51,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:51,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-08 07:42:51,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-11-08 07:42:51,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:42:51,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-08 07:42:51,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40e6544-7b02-4dc6-8a34-c387394db2d2/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-08 07:42:51,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40e6544-7b02-4dc6-8a34-c387394db2d2/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-08 07:42:51,233 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION === [reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-08 07:42:51,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-08 07:42:51,233 INFO L85 PathProgramCache]: Analyzing trace with hash -472875460, now seen corresponding path program 1 times [2022-11-08 07:42:51,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-08 07:42:51,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773966530] [2022-11-08 07:42:51,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:42:51,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-08 07:42:51,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:42:55,177 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 21 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-08 07:42:55,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-08 07:42:55,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773966530] [2022-11-08 07:42:55,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773966530] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-08 07:42:55,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [703902195] [2022-11-08 07:42:55,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:42:55,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-08 07:42:55,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40e6544-7b02-4dc6-8a34-c387394db2d2/bin/ugemcutter-QpsTfqS70U/z3 [2022-11-08 07:42:55,179 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40e6544-7b02-4dc6-8a34-c387394db2d2/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-08 07:42:55,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40e6544-7b02-4dc6-8a34-c387394db2d2/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-08 07:42:55,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:42:55,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 115 conjunts are in the unsatisfiable core [2022-11-08 07:42:55,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-08 07:42:55,330 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-08 07:42:55,345 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-08 07:42:55,345 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-08 07:42:55,394 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-08 07:42:55,416 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-08 07:42:55,473 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 21 [2022-11-08 07:42:56,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-08 07:42:56,194 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-08 07:42:56,211 INFO L356 Elim1Store]: treesize reduction 38, result has 30.9 percent of original size [2022-11-08 07:42:56,212 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 38 [2022-11-08 07:42:56,367 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-08 07:42:56,370 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 25 [2022-11-08 07:42:56,690 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-08 07:42:56,691 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 25 [2022-11-08 07:42:57,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-08 07:42:57,131 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-08 07:42:57,134 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-08 07:42:57,134 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 31 treesize of output 16 [2022-11-08 07:42:57,281 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 21 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-08 07:42:57,281 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-08 07:44:02,170 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~#r~2#1.offset| 20))) (and (forall ((v_ArrVal_187 Int) (v_ArrVal_186 (Array Int Int))) (let ((.cse0 (let ((.cse3 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#reader~0#1.base| v_ArrVal_186) |c_ULTIMATE.start_main_~#r~2#1.base|))) (store .cse3 (+ |c_ULTIMATE.start_main_~#r~2#1.offset| (* (select .cse3 .cse1) 4) 4) v_ArrVal_187)))) (let ((.cse2 (+ 1 (select .cse0 |c_ULTIMATE.start_main_~#r~2#1.offset|)))) (or (< (+ (select .cse0 .cse1) 1) 0) (not (< .cse2 0)) (= (mod .cse2 4) 0))))) (forall ((v_ArrVal_187 Int) (v_ArrVal_186 (Array Int Int))) (let ((.cse5 (let ((.cse6 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#reader~0#1.base| v_ArrVal_186) |c_ULTIMATE.start_main_~#r~2#1.base|))) (store .cse6 (+ |c_ULTIMATE.start_main_~#r~2#1.offset| (* (select .cse6 .cse1) 4) 4) v_ArrVal_187)))) (let ((.cse4 (+ (select .cse5 .cse1) 1))) (or (not (< .cse4 0)) (not (= (mod (+ 1 (select .cse5 |c_ULTIMATE.start_main_~#r~2#1.offset|)) 4) 0)) (= (mod .cse4 4) 0))))) (forall ((v_ArrVal_187 Int) (v_ArrVal_186 (Array Int Int))) (let ((.cse9 (let ((.cse10 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#reader~0#1.base| v_ArrVal_186) |c_ULTIMATE.start_main_~#r~2#1.base|))) (store .cse10 (+ |c_ULTIMATE.start_main_~#r~2#1.offset| (* (select .cse10 .cse1) 4) 4) v_ArrVal_187)))) (let ((.cse7 (+ (select .cse9 .cse1) 1)) (.cse8 (+ 1 (select .cse9 |c_ULTIMATE.start_main_~#r~2#1.offset|)))) (or (< .cse7 0) (= (mod .cse8 4) (mod .cse7 4)) (< .cse8 0))))) (forall ((v_ArrVal_187 Int) (v_ArrVal_186 (Array Int Int))) (let ((.cse13 (let ((.cse14 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#reader~0#1.base| v_ArrVal_186) |c_ULTIMATE.start_main_~#r~2#1.base|))) (store .cse14 (+ |c_ULTIMATE.start_main_~#r~2#1.offset| (* (select .cse14 .cse1) 4) 4) v_ArrVal_187)))) (let ((.cse11 (mod (+ (select .cse13 .cse1) 1) 4)) (.cse12 (+ 1 (select .cse13 |c_ULTIMATE.start_main_~#r~2#1.offset|)))) (or (not (= .cse11 0)) (= (mod .cse12 4) .cse11) (< .cse12 0))))) (forall ((v_ArrVal_187 Int) (v_ArrVal_186 (Array Int Int))) (let ((.cse17 (let ((.cse18 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#reader~0#1.base| v_ArrVal_186) |c_ULTIMATE.start_main_~#r~2#1.base|))) (store .cse18 (+ |c_ULTIMATE.start_main_~#r~2#1.offset| (* (select .cse18 .cse1) 4) 4) v_ArrVal_187)))) (let ((.cse16 (mod (+ 1 (select .cse17 |c_ULTIMATE.start_main_~#r~2#1.offset|)) 4)) (.cse15 (+ (select .cse17 .cse1) 1))) (or (< .cse15 0) (not (= .cse16 0)) (= .cse16 (mod .cse15 4)))))) (forall ((v_ArrVal_187 Int) (v_ArrVal_186 (Array Int Int))) (let ((.cse23 (let ((.cse24 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#reader~0#1.base| v_ArrVal_186) |c_ULTIMATE.start_main_~#r~2#1.base|))) (store .cse24 (+ |c_ULTIMATE.start_main_~#r~2#1.offset| (* (select .cse24 .cse1) 4) 4) v_ArrVal_187)))) (let ((.cse20 (+ 1 (select .cse23 |c_ULTIMATE.start_main_~#r~2#1.offset|))) (.cse19 (+ (select .cse23 .cse1) 1))) (let ((.cse22 (mod .cse19 4)) (.cse21 (mod .cse20 4))) (or (not (< .cse19 0)) (not (< .cse20 0)) (= .cse21 .cse22) (= .cse22 0) (= .cse21 0)))))) (forall ((v_ArrVal_187 Int) (v_ArrVal_186 (Array Int Int))) (let ((.cse25 (let ((.cse27 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#reader~0#1.base| v_ArrVal_186) |c_ULTIMATE.start_main_~#r~2#1.base|))) (store .cse27 (+ |c_ULTIMATE.start_main_~#r~2#1.offset| (* (select .cse27 .cse1) 4) 4) v_ArrVal_187)))) (let ((.cse26 (+ 1 (select .cse25 |c_ULTIMATE.start_main_~#r~2#1.offset|)))) (or (not (= (mod (+ (select .cse25 .cse1) 1) 4) 0)) (not (< .cse26 0)) (= (mod .cse26 4) 0))))) (forall ((v_ArrVal_187 Int) (v_ArrVal_186 (Array Int Int))) (let ((.cse29 (let ((.cse30 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#reader~0#1.base| v_ArrVal_186) |c_ULTIMATE.start_main_~#r~2#1.base|))) (store .cse30 (+ |c_ULTIMATE.start_main_~#r~2#1.offset| (* (select .cse30 .cse1) 4) 4) v_ArrVal_187)))) (let ((.cse28 (+ (select .cse29 .cse1) 1))) (or (not (< .cse28 0)) (= (mod .cse28 4) 0) (< (+ 1 (select .cse29 |c_ULTIMATE.start_main_~#r~2#1.offset|)) 0))))))) is different from false [2022-11-08 07:44:02,812 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~#r~2#1.offset| 20)) (.cse4 (store |c_#memory_int| |c_ULTIMATE.start_ring_init_~r#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_ring_init_~r#1.base|) |c_ULTIMATE.start_ring_init_~r#1.offset| 0)))) (and (forall ((v_ArrVal_187 Int) (v_ArrVal_186 (Array Int Int))) (let ((.cse0 (let ((.cse3 (select (store .cse4 |c_ULTIMATE.start_main_~#reader~0#1.base| v_ArrVal_186) |c_ULTIMATE.start_main_~#r~2#1.base|))) (store .cse3 (+ |c_ULTIMATE.start_main_~#r~2#1.offset| (* 4 (select .cse3 .cse1)) 4) v_ArrVal_187)))) (let ((.cse2 (+ 1 (select .cse0 |c_ULTIMATE.start_main_~#r~2#1.offset|)))) (or (< (+ (select .cse0 .cse1) 1) 0) (= (mod .cse2 4) 0) (not (< .cse2 0)))))) (forall ((v_ArrVal_187 Int) (v_ArrVal_186 (Array Int Int))) (let ((.cse7 (let ((.cse8 (select (store .cse4 |c_ULTIMATE.start_main_~#reader~0#1.base| v_ArrVal_186) |c_ULTIMATE.start_main_~#r~2#1.base|))) (store .cse8 (+ |c_ULTIMATE.start_main_~#r~2#1.offset| (* 4 (select .cse8 .cse1)) 4) v_ArrVal_187)))) (let ((.cse6 (+ 1 (select .cse7 |c_ULTIMATE.start_main_~#r~2#1.offset|))) (.cse5 (+ (select .cse7 .cse1) 1))) (or (= (mod .cse5 4) (mod .cse6 4)) (< .cse6 0) (< .cse5 0))))) (forall ((v_ArrVal_187 Int) (v_ArrVal_186 (Array Int Int))) (let ((.cse10 (let ((.cse11 (select (store .cse4 |c_ULTIMATE.start_main_~#reader~0#1.base| v_ArrVal_186) |c_ULTIMATE.start_main_~#r~2#1.base|))) (store .cse11 (+ |c_ULTIMATE.start_main_~#r~2#1.offset| (* 4 (select .cse11 .cse1)) 4) v_ArrVal_187)))) (let ((.cse9 (+ (select .cse10 .cse1) 1))) (or (= (mod .cse9 4) 0) (not (< .cse9 0)) (< (+ 1 (select .cse10 |c_ULTIMATE.start_main_~#r~2#1.offset|)) 0))))) (forall ((v_ArrVal_187 Int) (v_ArrVal_186 (Array Int Int))) (let ((.cse12 (let ((.cse14 (select (store .cse4 |c_ULTIMATE.start_main_~#reader~0#1.base| v_ArrVal_186) |c_ULTIMATE.start_main_~#r~2#1.base|))) (store .cse14 (+ |c_ULTIMATE.start_main_~#r~2#1.offset| (* 4 (select .cse14 .cse1)) 4) v_ArrVal_187)))) (let ((.cse13 (+ 1 (select .cse12 |c_ULTIMATE.start_main_~#r~2#1.offset|)))) (or (not (= (mod (+ (select .cse12 .cse1) 1) 4) 0)) (= (mod .cse13 4) 0) (not (< .cse13 0)))))) (forall ((v_ArrVal_187 Int) (v_ArrVal_186 (Array Int Int))) (let ((.cse19 (let ((.cse20 (select (store .cse4 |c_ULTIMATE.start_main_~#reader~0#1.base| v_ArrVal_186) |c_ULTIMATE.start_main_~#r~2#1.base|))) (store .cse20 (+ |c_ULTIMATE.start_main_~#r~2#1.offset| (* 4 (select .cse20 .cse1)) 4) v_ArrVal_187)))) (let ((.cse18 (+ 1 (select .cse19 |c_ULTIMATE.start_main_~#r~2#1.offset|))) (.cse16 (+ (select .cse19 .cse1) 1))) (let ((.cse15 (mod .cse16 4)) (.cse17 (mod .cse18 4))) (or (= .cse15 0) (not (< .cse16 0)) (= .cse15 .cse17) (= .cse17 0) (not (< .cse18 0))))))) (forall ((v_ArrVal_187 Int) (v_ArrVal_186 (Array Int Int))) (let ((.cse23 (let ((.cse24 (select (store .cse4 |c_ULTIMATE.start_main_~#reader~0#1.base| v_ArrVal_186) |c_ULTIMATE.start_main_~#r~2#1.base|))) (store .cse24 (+ |c_ULTIMATE.start_main_~#r~2#1.offset| (* 4 (select .cse24 .cse1)) 4) v_ArrVal_187)))) (let ((.cse22 (+ 1 (select .cse23 |c_ULTIMATE.start_main_~#r~2#1.offset|))) (.cse21 (mod (+ (select .cse23 .cse1) 1) 4))) (or (= .cse21 (mod .cse22 4)) (< .cse22 0) (not (= .cse21 0)))))) (forall ((v_ArrVal_187 Int) (v_ArrVal_186 (Array Int Int))) (let ((.cse27 (let ((.cse28 (select (store .cse4 |c_ULTIMATE.start_main_~#reader~0#1.base| v_ArrVal_186) |c_ULTIMATE.start_main_~#r~2#1.base|))) (store .cse28 (+ |c_ULTIMATE.start_main_~#r~2#1.offset| (* 4 (select .cse28 .cse1)) 4) v_ArrVal_187)))) (let ((.cse25 (+ (select .cse27 .cse1) 1)) (.cse26 (mod (+ 1 (select .cse27 |c_ULTIMATE.start_main_~#r~2#1.offset|)) 4))) (or (= (mod .cse25 4) .cse26) (< .cse25 0) (not (= .cse26 0)))))) (forall ((v_ArrVal_187 Int) (v_ArrVal_186 (Array Int Int))) (let ((.cse30 (let ((.cse31 (select (store .cse4 |c_ULTIMATE.start_main_~#reader~0#1.base| v_ArrVal_186) |c_ULTIMATE.start_main_~#r~2#1.base|))) (store .cse31 (+ |c_ULTIMATE.start_main_~#r~2#1.offset| (* 4 (select .cse31 .cse1)) 4) v_ArrVal_187)))) (let ((.cse29 (+ (select .cse30 .cse1) 1))) (or (= (mod .cse29 4) 0) (not (< .cse29 0)) (not (= (mod (+ 1 (select .cse30 |c_ULTIMATE.start_main_~#r~2#1.offset|)) 4) 0)))))))) is different from false [2022-11-08 07:44:02,863 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-08 07:44:02,863 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 2 case distinctions, treesize of input 176 treesize of output 116 [2022-11-08 07:44:02,881 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-08 07:44:02,881 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 194 treesize of output 186 [2022-11-08 07:44:02,889 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 191 treesize of output 157 [2022-11-08 07:44:02,906 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-08 07:44:02,906 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 15 treesize of output 9 [2022-11-08 07:44:02,959 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-08 07:44:02,960 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 227 treesize of output 223 [2022-11-08 07:44:03,472 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-08 07:44:03,473 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 229 treesize of output 143 [2022-11-08 07:44:03,478 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-08 07:44:03,481 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 99 [2022-11-08 07:44:03,532 INFO L356 Elim1Store]: treesize reduction 24, result has 35.1 percent of original size [2022-11-08 07:44:03,533 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 207 treesize of output 155 [2022-11-08 07:44:03,558 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-08 07:44:03,559 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 171 treesize of output 111 [2022-11-08 07:44:03,563 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-08 07:44:03,567 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 77 [2022-11-08 07:44:03,574 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-08 07:44:03,600 INFO L356 Elim1Store]: treesize reduction 19, result has 29.6 percent of original size [2022-11-08 07:44:03,601 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 131 treesize of output 100 [2022-11-08 07:44:03,619 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-08 07:44:03,623 INFO L356 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-08 07:44:03,623 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 229 treesize of output 1 [2022-11-08 07:44:03,629 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-08 07:44:03,633 INFO L356 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-08 07:44:03,633 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 226 treesize of output 1 [2022-11-08 07:44:03,639 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-08 07:44:03,642 INFO L356 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-08 07:44:03,643 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 174 treesize of output 1 [2022-11-08 07:44:03,649 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-08 07:44:03,652 INFO L356 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-08 07:44:03,653 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 173 treesize of output 1 [2022-11-08 07:44:03,662 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-08 07:44:03,666 INFO L356 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-08 07:44:03,666 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 344 treesize of output 1 [2022-11-08 07:44:05,982 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 21 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-08 07:44:05,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [703902195] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-08 07:44:05,982 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-08 07:44:05,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 31, 31] total 75 [2022-11-08 07:44:05,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030563489] [2022-11-08 07:44:05,983 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-08 07:44:05,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2022-11-08 07:44:05,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-08 07:44:05,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2022-11-08 07:44:05,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=294, Invalid=4964, Unknown=6, NotChecked=286, Total=5550 [2022-11-08 07:44:05,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:44:05,987 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-08 07:44:05,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 75 states, 75 states have (on average 4.053333333333334) internal successors, (304), 75 states have internal predecessors, (304), 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) [2022-11-08 07:44:05,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:44:05,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-11-08 07:44:05,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2022-11-08 07:44:05,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:44:05,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2022-11-08 07:44:05,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:44:31,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:44:31,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-08 07:44:31,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-11-08 07:44:31,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:44:31,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-08 07:44:31,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-11-08 07:44:31,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40e6544-7b02-4dc6-8a34-c387394db2d2/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-08 07:44:31,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40e6544-7b02-4dc6-8a34-c387394db2d2/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-08 07:44:31,997 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION === [reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-08 07:44:31,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-08 07:44:31,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1861459411, now seen corresponding path program 2 times [2022-11-08 07:44:31,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-08 07:44:31,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546282939] [2022-11-08 07:44:31,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:44:31,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-08 07:44:32,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:44:40,432 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-08 07:44:40,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-08 07:44:40,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546282939] [2022-11-08 07:44:40,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546282939] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-08 07:44:40,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [997643905] [2022-11-08 07:44:40,433 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-08 07:44:40,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-08 07:44:40,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40e6544-7b02-4dc6-8a34-c387394db2d2/bin/ugemcutter-QpsTfqS70U/z3 [2022-11-08 07:44:40,434 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40e6544-7b02-4dc6-8a34-c387394db2d2/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-08 07:44:40,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40e6544-7b02-4dc6-8a34-c387394db2d2/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-08 07:44:40,611 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-08 07:44:40,611 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-08 07:44:40,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 169 conjunts are in the unsatisfiable core [2022-11-08 07:44:40,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-08 07:44:40,631 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-08 07:44:40,641 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-08 07:44:40,641 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-08 07:44:40,687 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-08 07:44:40,713 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-08 07:44:40,767 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 21 [2022-11-08 07:44:42,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-08 07:44:42,184 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-08 07:44:42,206 INFO L356 Elim1Store]: treesize reduction 39, result has 40.0 percent of original size [2022-11-08 07:44:42,207 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 47 [2022-11-08 07:44:42,496 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 33 treesize of output 17 [2022-11-08 07:44:43,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-08 07:44:43,216 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 20 [2022-11-08 07:44:45,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-08 07:44:45,097 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-08 07:44:45,115 INFO L356 Elim1Store]: treesize reduction 38, result has 30.9 percent of original size [2022-11-08 07:44:45,115 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 38 [2022-11-08 07:44:46,426 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-08 07:44:46,429 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-08 07:44:46,430 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 43 [2022-11-08 07:44:47,357 INFO L356 Elim1Store]: treesize reduction 14, result has 17.6 percent of original size [2022-11-08 07:44:47,358 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 20 [2022-11-08 07:44:47,612 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-08 07:44:47,612 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-08 07:48:26,965 WARN L233 SmtUtils]: Spent 7.29s on a formula simplification that was a NOOP. DAG size: 115 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-08 07:48:48,608 WARN L233 SmtUtils]: Spent 6.27s on a formula simplification that was a NOOP. DAG size: 115 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-08 07:49:26,963 WARN L233 SmtUtils]: Spent 8.92s on a formula simplification that was a NOOP. DAG size: 114 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-08 07:50:05,891 WARN L233 SmtUtils]: Spent 14.77s on a formula simplification that was a NOOP. DAG size: 111 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-08 07:50:47,574 WARN L233 SmtUtils]: Spent 11.55s on a formula simplification that was a NOOP. DAG size: 109 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-08 07:51:16,801 WARN L233 SmtUtils]: Spent 12.34s on a formula simplification that was a NOOP. DAG size: 109 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-08 07:51:47,811 WARN L233 SmtUtils]: Spent 12.57s on a formula simplification that was a NOOP. DAG size: 109 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-08 07:52:14,839 WARN L233 SmtUtils]: Spent 8.28s on a formula simplification that was a NOOP. DAG size: 109 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-08 07:52:48,397 WARN L233 SmtUtils]: Spent 10.59s on a formula simplification that was a NOOP. DAG size: 107 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-08 07:53:27,176 WARN L233 SmtUtils]: Spent 13.99s on a formula simplification that was a NOOP. DAG size: 107 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-08 07:54:03,704 WARN L233 SmtUtils]: Spent 13.99s on a formula simplification that was a NOOP. DAG size: 107 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-08 07:54:16,763 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~#r~2#1.offset| 20))) (and (forall ((v_ArrVal_243 Int) (v_ArrVal_251 Int) (|v_ULTIMATE.start_ring_enqueue_#t~mem6#1_18| Int) (v_ArrVal_242 (Array Int Int)) (v_ArrVal_248 Int)) (let ((.cse2 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#reader~0#1.base| v_ArrVal_242) |c_ULTIMATE.start_main_~#r~2#1.base|))) (let ((.cse6 (store .cse2 (+ |c_ULTIMATE.start_main_~#r~2#1.offset| (* |v_ULTIMATE.start_ring_enqueue_#t~mem6#1_18| 4) 4) v_ArrVal_243))) (let ((.cse5 (+ 1 (select .cse6 .cse1))) (.cse4 (select .cse2 .cse1))) (let ((.cse3 (+ .cse4 1)) (.cse0 (let ((.cse7 (mod .cse5 4))) (store (store (store .cse6 .cse1 (+ .cse7 (- 4))) |c_ULTIMATE.start_main_~#r~2#1.offset| v_ArrVal_248) (+ |c_ULTIMATE.start_main_~#r~2#1.offset| (* .cse7 4) (- 12)) 2)))) (or (= 2 (select (store .cse0 .cse1 v_ArrVal_251) (+ |c_ULTIMATE.start_main_~#r~2#1.offset| (* (select .cse0 |c_ULTIMATE.start_main_~#r~2#1.offset|) 4) 4))) (= (select .cse2 |c_ULTIMATE.start_main_~#r~2#1.offset|) (mod .cse3 4)) (not (<= |v_ULTIMATE.start_ring_enqueue_#t~mem6#1_18| .cse4)) (not (< .cse5 0)) (< .cse3 0) (not (= v_ArrVal_248 (select .cse0 .cse1))))))))) (forall ((v_ArrVal_243 Int) (v_ArrVal_251 Int) (|v_ULTIMATE.start_ring_enqueue_#t~mem6#1_18| Int) (v_ArrVal_242 (Array Int Int)) (v_ArrVal_248 Int)) (let ((.cse15 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#reader~0#1.base| v_ArrVal_242) |c_ULTIMATE.start_main_~#r~2#1.base|))) (let ((.cse13 (store .cse15 (+ |c_ULTIMATE.start_main_~#r~2#1.offset| (* |v_ULTIMATE.start_ring_enqueue_#t~mem6#1_18| 4) 4) v_ArrVal_243))) (let ((.cse12 (+ 1 (select .cse13 .cse1))) (.cse11 (select .cse15 .cse1))) (let ((.cse8 (select .cse15 |c_ULTIMATE.start_main_~#r~2#1.offset|)) (.cse9 (mod (+ .cse11 1) 4)) (.cse10 (let ((.cse14 (mod .cse12 4))) (store (store (store .cse13 .cse1 (+ .cse14 (- 4))) |c_ULTIMATE.start_main_~#r~2#1.offset| v_ArrVal_248) (+ |c_ULTIMATE.start_main_~#r~2#1.offset| (* .cse14 4) (- 12)) 2)))) (or (= (+ .cse8 4) .cse9) (= 2 (select (store .cse10 .cse1 v_ArrVal_251) (+ |c_ULTIMATE.start_main_~#r~2#1.offset| (* (select .cse10 |c_ULTIMATE.start_main_~#r~2#1.offset|) 4) 4))) (= .cse8 .cse9) (not (<= |v_ULTIMATE.start_ring_enqueue_#t~mem6#1_18| .cse11)) (not (< .cse12 0)) (not (= v_ArrVal_248 (select .cse10 .cse1))))))))) (forall ((v_ArrVal_243 Int) (v_ArrVal_251 Int) (|v_ULTIMATE.start_ring_enqueue_#t~mem6#1_18| Int) (v_ArrVal_242 (Array Int Int)) (v_ArrVal_248 Int)) (let ((.cse16 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#reader~0#1.base| v_ArrVal_242) |c_ULTIMATE.start_main_~#r~2#1.base|))) (let ((.cse19 (select .cse16 .cse1))) (let ((.cse17 (+ .cse19 1)) (.cse18 (let ((.cse20 (store .cse16 (+ |c_ULTIMATE.start_main_~#r~2#1.offset| (* |v_ULTIMATE.start_ring_enqueue_#t~mem6#1_18| 4) 4) v_ArrVal_243))) (let ((.cse21 (mod (+ 1 (select .cse20 .cse1)) 4))) (store (store (store .cse20 .cse1 (+ .cse21 (- 4))) |c_ULTIMATE.start_main_~#r~2#1.offset| v_ArrVal_248) (+ |c_ULTIMATE.start_main_~#r~2#1.offset| (* .cse21 4) (- 12)) 2))))) (or (= (+ (select .cse16 |c_ULTIMATE.start_main_~#r~2#1.offset|) 4) (mod .cse17 4)) (= 2 (select (store .cse18 .cse1 v_ArrVal_251) (+ |c_ULTIMATE.start_main_~#r~2#1.offset| (* (select .cse18 |c_ULTIMATE.start_main_~#r~2#1.offset|) 4) 4))) (not (< .cse17 0)) (not (<= |v_ULTIMATE.start_ring_enqueue_#t~mem6#1_18| .cse19)) (not (= v_ArrVal_248 (select .cse18 .cse1)))))))))) is different from false [2022-11-08 07:54:17,246 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse4 (+ |c_ULTIMATE.start_main_~#r~2#1.offset| 20)) (.cse8 (store |c_#memory_int| |c_ULTIMATE.start_ring_init_~r#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_ring_init_~r#1.base|) |c_ULTIMATE.start_ring_init_~r#1.offset| 0)))) (and (forall ((v_ArrVal_243 Int) (v_ArrVal_251 Int) (|v_ULTIMATE.start_ring_enqueue_#t~mem6#1_18| Int) (v_ArrVal_242 (Array Int Int)) (v_ArrVal_248 Int)) (let ((.cse0 (select (store .cse8 |c_ULTIMATE.start_main_~#reader~0#1.base| v_ArrVal_242) |c_ULTIMATE.start_main_~#r~2#1.base|))) (let ((.cse6 (store .cse0 (+ |c_ULTIMATE.start_main_~#r~2#1.offset| (* |v_ULTIMATE.start_ring_enqueue_#t~mem6#1_18| 4) 4) v_ArrVal_243))) (let ((.cse2 (select .cse0 .cse4)) (.cse5 (+ (select .cse6 .cse4) 1))) (let ((.cse3 (let ((.cse7 (mod .cse5 4))) (store (store (store .cse6 .cse4 (+ .cse7 (- 4))) |c_ULTIMATE.start_main_~#r~2#1.offset| v_ArrVal_248) (+ |c_ULTIMATE.start_main_~#r~2#1.offset| (* .cse7 4) (- 12)) 2))) (.cse1 (+ .cse2 1))) (or (= (select .cse0 |c_ULTIMATE.start_main_~#r~2#1.offset|) (mod .cse1 4)) (not (<= |v_ULTIMATE.start_ring_enqueue_#t~mem6#1_18| .cse2)) (= (select (store .cse3 .cse4 v_ArrVal_251) (+ |c_ULTIMATE.start_main_~#r~2#1.offset| (* (select .cse3 |c_ULTIMATE.start_main_~#r~2#1.offset|) 4) 4)) 2) (not (= v_ArrVal_248 (select .cse3 .cse4))) (< .cse1 0) (not (< .cse5 0)))))))) (forall ((v_ArrVal_243 Int) (v_ArrVal_251 Int) (|v_ULTIMATE.start_ring_enqueue_#t~mem6#1_18| Int) (v_ArrVal_242 (Array Int Int)) (v_ArrVal_248 Int)) (let ((.cse12 (select (store .cse8 |c_ULTIMATE.start_main_~#reader~0#1.base| v_ArrVal_242) |c_ULTIMATE.start_main_~#r~2#1.base|))) (let ((.cse9 (select .cse12 .cse4))) (let ((.cse11 (let ((.cse13 (store .cse12 (+ |c_ULTIMATE.start_main_~#r~2#1.offset| (* |v_ULTIMATE.start_ring_enqueue_#t~mem6#1_18| 4) 4) v_ArrVal_243))) (let ((.cse14 (mod (+ (select .cse13 .cse4) 1) 4))) (store (store (store .cse13 .cse4 (+ .cse14 (- 4))) |c_ULTIMATE.start_main_~#r~2#1.offset| v_ArrVal_248) (+ |c_ULTIMATE.start_main_~#r~2#1.offset| (* .cse14 4) (- 12)) 2)))) (.cse10 (+ .cse9 1))) (or (not (<= |v_ULTIMATE.start_ring_enqueue_#t~mem6#1_18| .cse9)) (not (< .cse10 0)) (= (select (store .cse11 .cse4 v_ArrVal_251) (+ |c_ULTIMATE.start_main_~#r~2#1.offset| (* (select .cse11 |c_ULTIMATE.start_main_~#r~2#1.offset|) 4) 4)) 2) (not (= v_ArrVal_248 (select .cse11 .cse4))) (= (+ (select .cse12 |c_ULTIMATE.start_main_~#r~2#1.offset|) 4) (mod .cse10 4))))))) (forall ((v_ArrVal_243 Int) (v_ArrVal_251 Int) (|v_ULTIMATE.start_ring_enqueue_#t~mem6#1_18| Int) (v_ArrVal_242 (Array Int Int)) (v_ArrVal_248 Int)) (let ((.cse20 (select (store .cse8 |c_ULTIMATE.start_main_~#reader~0#1.base| v_ArrVal_242) |c_ULTIMATE.start_main_~#r~2#1.base|))) (let ((.cse21 (store .cse20 (+ |c_ULTIMATE.start_main_~#r~2#1.offset| (* |v_ULTIMATE.start_ring_enqueue_#t~mem6#1_18| 4) 4) v_ArrVal_243))) (let ((.cse17 (select .cse20 .cse4)) (.cse19 (+ (select .cse21 .cse4) 1))) (let ((.cse18 (let ((.cse22 (mod .cse19 4))) (store (store (store .cse21 .cse4 (+ .cse22 (- 4))) |c_ULTIMATE.start_main_~#r~2#1.offset| v_ArrVal_248) (+ |c_ULTIMATE.start_main_~#r~2#1.offset| (* .cse22 4) (- 12)) 2))) (.cse15 (select .cse20 |c_ULTIMATE.start_main_~#r~2#1.offset|)) (.cse16 (mod (+ .cse17 1) 4))) (or (= .cse15 .cse16) (not (<= |v_ULTIMATE.start_ring_enqueue_#t~mem6#1_18| .cse17)) (= (select (store .cse18 .cse4 v_ArrVal_251) (+ |c_ULTIMATE.start_main_~#r~2#1.offset| (* (select .cse18 |c_ULTIMATE.start_main_~#r~2#1.offset|) 4) 4)) 2) (not (= v_ArrVal_248 (select .cse18 .cse4))) (= (+ .cse15 4) .cse16) (not (< .cse19 0)))))))))) is different from false [2022-11-08 07:54:17,283 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-08 07:54:17,284 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 2 case distinctions, treesize of input 524 treesize of output 347 [2022-11-08 07:54:17,317 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-08 07:54:17,317 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 612 treesize of output 586 [2022-11-08 07:54:17,397 INFO L356 Elim1Store]: treesize reduction 29, result has 12.1 percent of original size [2022-11-08 07:54:17,398 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 31969 treesize of output 26431 [2022-11-08 07:54:18,987 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 9 [2022-11-08 07:54:19,292 INFO L356 Elim1Store]: treesize reduction 51, result has 56.0 percent of original size [2022-11-08 07:54:19,294 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 567611 treesize of output 535973 [2022-11-08 07:54:45,791 WARN L233 SmtUtils]: Spent 26.49s on a formula simplification. DAG size of input: 1161 DAG size of output: 1158 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-08 07:55:21,422 WARN L233 SmtUtils]: Spent 12.50s on a formula simplification. DAG size of input: 1063 DAG size of output: 1063 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-08 07:56:03,095 WARN L233 SmtUtils]: Spent 5.16s on a formula simplification. DAG size of input: 1066 DAG size of output: 1066 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)