./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e2cb3c9a8570b7ee66b623ed5fd2a1832f018e766f6bb5120cee7430951770d6 --- 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-4e7fbc6 [2022-11-23 14:47:49,049 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:47:49,052 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:47:49,083 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:47:49,084 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:47:49,085 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:47:49,089 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:47:49,094 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:47:49,096 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:47:49,102 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:47:49,103 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:47:49,105 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:47:49,105 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:47:49,110 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:47:49,113 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:47:49,115 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:47:49,117 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:47:49,118 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:47:49,120 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:47:49,126 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:47:49,127 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:47:49,130 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:47:49,132 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:47:49,133 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:47:49,143 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:47:49,143 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:47:49,144 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:47:49,145 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:47:49,146 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:47:49,147 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:47:49,147 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:47:49,148 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:47:49,150 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:47:49,151 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:47:49,153 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:47:49,153 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:47:49,154 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:47:49,154 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:47:49,155 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:47:49,156 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:47:49,156 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:47:49,157 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-23 14:47:49,200 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:47:49,201 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:47:49,201 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:47:49,202 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:47:49,203 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:47:49,203 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:47:49,203 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:47:49,203 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:47:49,203 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:47:49,204 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:47:49,205 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:47:49,205 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:47:49,205 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:47:49,205 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:47:49,205 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:47:49,206 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:47:49,206 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:47:49,206 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:47:49,207 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:47:49,207 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:47:49,207 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 14:47:49,207 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:47:49,208 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:47:49,208 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:47:49,208 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:47:49,208 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:47:49,209 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:47:49,209 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 14:47:49,209 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:47:49,209 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:47:49,210 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:47:49,210 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:47:49,210 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:47:49,210 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:47:49,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:47:49,211 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:47:49,211 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:47:49,211 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:47:49,211 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:47:49,212 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:47:49,212 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:47:49,212 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:47:49,212 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:47:49,212 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_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2cb3c9a8570b7ee66b623ed5fd2a1832f018e766f6bb5120cee7430951770d6 [2022-11-23 14:47:49,553 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:47:49,595 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:47:49,597 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:47:49,599 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:47:49,599 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:47:49,600 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-1.i [2022-11-23 14:47:52,637 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:47:53,035 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:47:53,037 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-1.i [2022-11-23 14:47:53,062 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/data/90544da66/13bcd019e29e4726860920d6abf75e9f/FLAG805c398b2 [2022-11-23 14:47:53,079 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/data/90544da66/13bcd019e29e4726860920d6abf75e9f [2022-11-23 14:47:53,081 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:47:53,083 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:47:53,084 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:47:53,085 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:47:53,088 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:47:53,089 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:47:53" (1/1) ... [2022-11-23 14:47:53,090 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3423fad5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:53, skipping insertion in model container [2022-11-23 14:47:53,090 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:47:53" (1/1) ... [2022-11-23 14:47:53,098 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:47:53,164 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:47:53,736 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-1.i[33021,33034] [2022-11-23 14:47:53,998 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-1.i[84583,84596] [2022-11-23 14:47:54,012 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:47:54,024 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:47:54,079 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-1.i[33021,33034] [2022-11-23 14:47:54,257 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-1.i[84583,84596] [2022-11-23 14:47:54,263 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:47:54,329 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:47:54,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:54 WrapperNode [2022-11-23 14:47:54,330 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:47:54,335 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:47:54,336 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:47:54,336 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:47:54,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:54" (1/1) ... [2022-11-23 14:47:54,390 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:54" (1/1) ... [2022-11-23 14:47:54,510 INFO L138 Inliner]: procedures = 177, calls = 730, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2868 [2022-11-23 14:47:54,510 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:47:54,511 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:47:54,512 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:47:54,512 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:47:54,522 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:54" (1/1) ... [2022-11-23 14:47:54,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:54" (1/1) ... [2022-11-23 14:47:54,537 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:54" (1/1) ... [2022-11-23 14:47:54,537 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:54" (1/1) ... [2022-11-23 14:47:54,625 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:54" (1/1) ... [2022-11-23 14:47:54,656 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:54" (1/1) ... [2022-11-23 14:47:54,676 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:54" (1/1) ... [2022-11-23 14:47:54,687 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:54" (1/1) ... [2022-11-23 14:47:54,713 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:47:54,715 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:47:54,715 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:47:54,715 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:47:54,716 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:54" (1/1) ... [2022-11-23 14:47:54,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:47:54,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:47:54,748 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:47:54,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:47:54,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 14:47:54,800 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-23 14:47:54,800 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-23 14:47:54,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 14:47:54,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 14:47:54,801 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 14:47:54,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 14:47:54,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:47:54,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 14:47:54,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:47:54,801 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-23 14:47:54,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 14:47:54,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:47:54,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:47:54,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:47:54,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:47:55,075 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:47:55,078 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:47:58,004 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:47:58,525 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:47:58,525 INFO L300 CfgBuilder]: Removed 54 assume(true) statements. [2022-11-23 14:47:58,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:47:58 BoogieIcfgContainer [2022-11-23 14:47:58,530 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:47:58,533 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:47:58,533 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:47:58,537 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:47:58,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:47:53" (1/3) ... [2022-11-23 14:47:58,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20e8ba8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:47:58, skipping insertion in model container [2022-11-23 14:47:58,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:54" (2/3) ... [2022-11-23 14:47:58,541 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20e8ba8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:47:58, skipping insertion in model container [2022-11-23 14:47:58,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:47:58" (3/3) ... [2022-11-23 14:47:58,542 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test9-1.i [2022-11-23 14:47:58,562 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:47:58,562 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-23 14:47:58,660 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:47:58,667 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=FINITE_AUTOMATA, 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;@4ffb8650, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:47:58,667 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-23 14:47:58,675 INFO L276 IsEmpty]: Start isEmpty. Operand has 1109 states, 595 states have (on average 1.969747899159664) internal successors, (1172), 1103 states have internal predecessors, (1172), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2022-11-23 14:47:58,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-23 14:47:58,682 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:47:58,683 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-23 14:47:58,683 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 14:47:58,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:47:58,689 INFO L85 PathProgramCache]: Analyzing trace with hash 140833213, now seen corresponding path program 1 times [2022-11-23 14:47:58,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:47:58,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32356022] [2022-11-23 14:47:58,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:47:58,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:47:58,841 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 14:47:58,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1508905874] [2022-11-23 14:47:58,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:47:58,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:47:58,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:47:58,850 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:47:58,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 14:47:59,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:47:59,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-23 14:47:59,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:47:59,108 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-23 14:47:59,117 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:47:59,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:59,161 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-23 14:47:59,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:47:59,175 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:47:59,175 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:47:59,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32356022] [2022-11-23 14:47:59,176 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 14:47:59,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1508905874] [2022-11-23 14:47:59,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1508905874] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:47:59,177 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:47:59,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:47:59,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046285622] [2022-11-23 14:47:59,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:47:59,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:47:59,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:47:59,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:47:59,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:47:59,218 INFO L87 Difference]: Start difference. First operand has 1109 states, 595 states have (on average 1.969747899159664) internal successors, (1172), 1103 states have internal predecessors, (1172), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-11-23 14:48:01,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:48:01,946 INFO L93 Difference]: Finished difference Result 3278 states and 6462 transitions. [2022-11-23 14:48:01,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:48:01,951 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) Word has length 4 [2022-11-23 14:48:01,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:48:01,989 INFO L225 Difference]: With dead ends: 3278 [2022-11-23 14:48:01,989 INFO L226 Difference]: Without dead ends: 2167 [2022-11-23 14:48:02,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:48:02,011 INFO L413 NwaCegarLoop]: 2595 mSDtfsCounter, 1065 mSDsluCounter, 4173 mSDsCounter, 0 mSdLazyCounter, 603 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1565 SdHoareTripleChecker+Valid, 6768 SdHoareTripleChecker+Invalid, 607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:48:02,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1565 Valid, 6768 Invalid, 607 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 603 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-23 14:48:02,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2167 states. [2022-11-23 14:48:02,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2167 to 1111. [2022-11-23 14:48:02,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1111 states, 598 states have (on average 1.874581939799331) internal successors, (1121), 1105 states have internal predecessors, (1121), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2022-11-23 14:48:02,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1111 states to 1111 states and 2127 transitions. [2022-11-23 14:48:02,654 INFO L78 Accepts]: Start accepts. Automaton has 1111 states and 2127 transitions. Word has length 4 [2022-11-23 14:48:02,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:48:02,655 INFO L495 AbstractCegarLoop]: Abstraction has 1111 states and 2127 transitions. [2022-11-23 14:48:02,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-11-23 14:48:02,658 INFO L276 IsEmpty]: Start isEmpty. Operand 1111 states and 2127 transitions. [2022-11-23 14:48:02,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-23 14:48:02,659 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:48:02,660 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:48:02,666 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-23 14:48:02,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:48:02,865 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 14:48:02,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:48:02,866 INFO L85 PathProgramCache]: Analyzing trace with hash -201976307, now seen corresponding path program 1 times [2022-11-23 14:48:02,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:48:02,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538178597] [2022-11-23 14:48:02,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:48:02,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:48:02,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:48:03,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:48:03,338 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:48:03,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538178597] [2022-11-23 14:48:03,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538178597] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:48:03,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:48:03,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:48:03,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063418183] [2022-11-23 14:48:03,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:48:03,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:48:03,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:48:03,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:48:03,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:48:03,343 INFO L87 Difference]: Start difference. First operand 1111 states and 2127 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 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) [2022-11-23 14:48:06,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:48:06,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:48:06,658 INFO L93 Difference]: Finished difference Result 3200 states and 6229 transitions. [2022-11-23 14:48:06,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:48:06,663 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 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) Word has length 20 [2022-11-23 14:48:06,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:48:06,677 INFO L225 Difference]: With dead ends: 3200 [2022-11-23 14:48:06,677 INFO L226 Difference]: Without dead ends: 2154 [2022-11-23 14:48:06,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:48:06,682 INFO L413 NwaCegarLoop]: 2598 mSDtfsCounter, 1051 mSDsluCounter, 4177 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1551 SdHoareTripleChecker+Valid, 6775 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:48:06,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1551 Valid, 6775 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 589 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-23 14:48:06,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2154 states. [2022-11-23 14:48:07,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2154 to 1111. [2022-11-23 14:48:07,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1111 states, 598 states have (on average 1.8729096989966556) internal successors, (1120), 1105 states have internal predecessors, (1120), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2022-11-23 14:48:07,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1111 states to 1111 states and 2126 transitions. [2022-11-23 14:48:07,073 INFO L78 Accepts]: Start accepts. Automaton has 1111 states and 2126 transitions. Word has length 20 [2022-11-23 14:48:07,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:48:07,074 INFO L495 AbstractCegarLoop]: Abstraction has 1111 states and 2126 transitions. [2022-11-23 14:48:07,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 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) [2022-11-23 14:48:07,076 INFO L276 IsEmpty]: Start isEmpty. Operand 1111 states and 2126 transitions. [2022-11-23 14:48:07,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-23 14:48:07,078 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:48:07,078 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:48:07,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 14:48:07,081 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 14:48:07,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:48:07,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1943706040, now seen corresponding path program 1 times [2022-11-23 14:48:07,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:48:07,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961831051] [2022-11-23 14:48:07,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:48:07,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:48:07,254 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 14:48:07,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1885498321] [2022-11-23 14:48:07,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:48:07,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:48:07,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:48:07,263 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:48:07,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 14:48:07,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:48:07,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 1578 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 14:48:07,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:48:08,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:48:08,005 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:48:08,005 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:48:08,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961831051] [2022-11-23 14:48:08,006 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 14:48:08,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1885498321] [2022-11-23 14:48:08,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1885498321] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:48:08,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:48:08,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:48:08,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121109690] [2022-11-23 14:48:08,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:48:08,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:48:08,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:48:08,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:48:08,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:48:08,011 INFO L87 Difference]: Start difference. First operand 1111 states and 2126 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 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) [2022-11-23 14:48:08,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:48:08,920 INFO L93 Difference]: Finished difference Result 3258 states and 6292 transitions. [2022-11-23 14:48:08,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:48:08,924 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 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) Word has length 28 [2022-11-23 14:48:08,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:48:08,945 INFO L225 Difference]: With dead ends: 3258 [2022-11-23 14:48:08,945 INFO L226 Difference]: Without dead ends: 2152 [2022-11-23 14:48:08,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:48:08,950 INFO L413 NwaCegarLoop]: 2622 mSDtfsCounter, 1039 mSDsluCounter, 2089 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1541 SdHoareTripleChecker+Valid, 4711 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-23 14:48:08,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1541 Valid, 4711 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-23 14:48:08,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2152 states. [2022-11-23 14:48:09,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2152 to 2148. [2022-11-23 14:48:09,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2148 states, 1135 states have (on average 1.905726872246696) internal successors, (2163), 2142 states have internal predecessors, (2163), 1003 states have call successors, (1003), 2 states have call predecessors, (1003), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2022-11-23 14:48:09,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2148 states to 2148 states and 4169 transitions. [2022-11-23 14:48:09,300 INFO L78 Accepts]: Start accepts. Automaton has 2148 states and 4169 transitions. Word has length 28 [2022-11-23 14:48:09,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:48:09,301 INFO L495 AbstractCegarLoop]: Abstraction has 2148 states and 4169 transitions. [2022-11-23 14:48:09,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 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) [2022-11-23 14:48:09,301 INFO L276 IsEmpty]: Start isEmpty. Operand 2148 states and 4169 transitions. [2022-11-23 14:48:09,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-23 14:48:09,303 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:48:09,303 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:48:09,315 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 14:48:09,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-11-23 14:48:09,512 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 14:48:09,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:48:09,512 INFO L85 PathProgramCache]: Analyzing trace with hash -490151430, now seen corresponding path program 1 times [2022-11-23 14:48:09,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:48:09,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079014044] [2022-11-23 14:48:09,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:48:09,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:48:09,566 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 14:48:09,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [27271206] [2022-11-23 14:48:09,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:48:09,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:48:09,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:48:09,568 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:48:09,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 14:48:11,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:48:11,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 715 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 14:48:11,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:48:11,703 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 14:48:11,703 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:48:11,703 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:48:11,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079014044] [2022-11-23 14:48:11,704 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 14:48:11,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [27271206] [2022-11-23 14:48:11,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [27271206] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:48:11,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:48:11,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:48:11,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887961042] [2022-11-23 14:48:11,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:48:11,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:48:11,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:48:11,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:48:11,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:48:11,707 INFO L87 Difference]: Start difference. First operand 2148 states and 4169 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 14:48:14,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:48:14,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:48:14,602 INFO L93 Difference]: Finished difference Result 4280 states and 8324 transitions. [2022-11-23 14:48:14,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:48:14,609 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 41 [2022-11-23 14:48:14,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:48:14,624 INFO L225 Difference]: With dead ends: 4280 [2022-11-23 14:48:14,624 INFO L226 Difference]: Without dead ends: 2150 [2022-11-23 14:48:14,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:48:14,632 INFO L413 NwaCegarLoop]: 2107 mSDtfsCounter, 1 mSDsluCounter, 4210 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 6317 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-23 14:48:14,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 6317 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-23 14:48:14,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2150 states. [2022-11-23 14:48:14,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2150 to 2150. [2022-11-23 14:48:14,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2150 states, 1136 states have (on average 1.9058098591549295) internal successors, (2165), 2144 states have internal predecessors, (2165), 1003 states have call successors, (1003), 2 states have call predecessors, (1003), 3 states have return successors, (1004), 5 states have call predecessors, (1004), 1003 states have call successors, (1004) [2022-11-23 14:48:15,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2150 states to 2150 states and 4172 transitions. [2022-11-23 14:48:15,001 INFO L78 Accepts]: Start accepts. Automaton has 2150 states and 4172 transitions. Word has length 41 [2022-11-23 14:48:15,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:48:15,002 INFO L495 AbstractCegarLoop]: Abstraction has 2150 states and 4172 transitions. [2022-11-23 14:48:15,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 14:48:15,003 INFO L276 IsEmpty]: Start isEmpty. Operand 2150 states and 4172 transitions. [2022-11-23 14:48:15,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:48:15,004 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:48:15,004 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:48:15,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 14:48:15,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:48:15,220 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 14:48:15,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:48:15,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1375446570, now seen corresponding path program 1 times [2022-11-23 14:48:15,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:48:15,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244335695] [2022-11-23 14:48:15,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:48:15,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:48:15,274 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 14:48:15,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [754304597] [2022-11-23 14:48:15,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:48:15,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:48:15,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:48:15,276 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:48:15,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 14:48:45,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:48:45,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-23 14:48:45,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:48:45,310 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 14:48:45,311 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:48:45,438 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 14:48:45,439 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:48:45,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244335695] [2022-11-23 14:48:45,439 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 14:48:45,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [754304597] [2022-11-23 14:48:45,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [754304597] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:48:45,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1671762052] [2022-11-23 14:48:45,461 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2022-11-23 14:48:45,462 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:48:45,465 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:48:45,470 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:48:45,471 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:48:45,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:45,570 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-23 14:48:45,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:45,599 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-23 14:48:45,599 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 26 [2022-11-23 14:48:45,617 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-23 14:48:45,625 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-23 14:48:45,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:45,655 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 14:48:45,655 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-23 14:48:45,703 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-23 14:48:45,709 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-23 14:48:45,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:45,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:45,763 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-23 14:48:45,763 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2022-11-23 14:48:45,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:45,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:45,817 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 14:48:45,817 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-23 14:48:45,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:45,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:45,838 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 38 [2022-11-23 14:48:45,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:45,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:45,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:45,884 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 64 [2022-11-23 14:48:45,898 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-23 14:48:45,910 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-23 14:48:46,352 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-23 14:48:46,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,411 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896995 treesize of output 5376286 [2022-11-23 14:48:46,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,461 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 8458577 treesize of output 4759834 [2022-11-23 14:48:46,496 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-23 14:48:46,540 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-23 14:48:46,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,602 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-11-23 14:48:46,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,658 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-11-23 14:48:46,692 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-23 14:48:46,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,781 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-11-23 14:48:46,823 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-23 14:48:46,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,895 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-23 14:48:46,895 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 74 [2022-11-23 14:48:46,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:46,984 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-23 14:48:46,984 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-11-23 14:48:47,020 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-23 14:48:47,236 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-23 14:48:47,242 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-23 14:48:47,247 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-23 14:48:47,273 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 65 [2022-11-23 14:48:47,283 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-23 14:48:47,294 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-23 14:48:47,317 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-23 14:48:47,323 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-23 14:48:47,329 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-23 14:48:47,394 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-23 14:48:47,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:47,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:47,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:47,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:47,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:47,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:47,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:47,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:47,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:47,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:47,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:47,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:47,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:47,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:47,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:47,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:47,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:47,447 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458573 treesize of output 4759755 [2022-11-23 14:48:47,468 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-23 14:48:47,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:47,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:47,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:47,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:47,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:47,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:47,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:47,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:47,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:47,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:47,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:47,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:47,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:47,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:47,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:47,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:47,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:47,690 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458573 treesize of output 4759755 [2022-11-23 14:48:47,714 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-23 14:48:47,731 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-23 14:48:48,896 INFO L217 Elim1Store]: Index analysis took 834 ms [2022-11-23 14:48:58,370 WARN L233 SmtUtils]: Spent 9.47s on a formula simplification. DAG size of input: 109 DAG size of output: 31 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-23 14:48:58,371 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-11-23 14:48:58,372 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 9519777 treesize of output 9519796 [2022-11-23 14:48:59,823 INFO L217 Elim1Store]: Index analysis took 1188 ms [2022-11-23 14:49:02,606 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-11-23 14:49:02,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 9519772 treesize of output 9519776 [2022-11-23 14:49:11,541 INFO L217 Elim1Store]: Index analysis took 300 ms [2022-11-23 14:49:40,528 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-23 14:49:40,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:49:40,711 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 75409 column 7: canceled at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:192) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne3(DualJunctionSaa.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne2(DualJunctionSaa.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne1(DualJunctionSaa.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne0(DualJunctionSaa.java:124) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne(DualJunctionSaa.java:108) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryExhaustivelyToEliminate(DualJunctionSaa.java:93) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:627) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:606) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:528) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:332) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:188) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:281) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.newQuantifier(SymbolicTools.java:285) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.projectExistentially(SymbolicTools.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermDomainOperationProvider.projectExistentially(TermDomainOperationProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateTransformer.strongestPostcondition(PredicateTransformer.java:131) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:119) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 75409 column 7: canceled at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1458) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:258) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.UndoableWrapperScript.push(UndoableWrapperScript.java:54) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.pushContext(SimplifyDDA.java:736) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:389) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:648) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:180) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:198) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:265) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1(Elim1Store.java:318) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:427) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:190) ... 59 more [2022-11-23 14:49:40,715 INFO L158 Benchmark]: Toolchain (without parser) took 107632.41ms. Allocated memory was 161.5MB in the beginning and 9.6GB in the end (delta: 9.4GB). Free memory was 120.3MB in the beginning and 7.5GB in the end (delta: -7.3GB). Peak memory consumption was 2.2GB. Max. memory is 16.1GB. [2022-11-23 14:49:40,715 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 113.2MB. Free memory is still 87.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:49:40,716 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1250.45ms. Allocated memory is still 161.5MB. Free memory was 119.8MB in the beginning and 123.9MB in the end (delta: -4.1MB). Peak memory consumption was 67.4MB. Max. memory is 16.1GB. [2022-11-23 14:49:40,716 INFO L158 Benchmark]: Boogie Procedure Inliner took 175.01ms. Allocated memory is still 161.5MB. Free memory was 123.9MB in the beginning and 109.4MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-23 14:49:40,716 INFO L158 Benchmark]: Boogie Preprocessor took 202.54ms. Allocated memory is still 161.5MB. Free memory was 109.4MB in the beginning and 96.0MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-23 14:49:40,717 INFO L158 Benchmark]: RCFGBuilder took 3815.85ms. Allocated memory was 161.5MB in the beginning and 216.0MB in the end (delta: 54.5MB). Free memory was 96.0MB in the beginning and 157.4MB in the end (delta: -61.4MB). Peak memory consumption was 86.3MB. Max. memory is 16.1GB. [2022-11-23 14:49:40,717 INFO L158 Benchmark]: TraceAbstraction took 102181.34ms. Allocated memory was 216.0MB in the beginning and 9.6GB in the end (delta: 9.4GB). Free memory was 156.3MB in the beginning and 7.5GB in the end (delta: -7.3GB). Peak memory consumption was 2.2GB. Max. memory is 16.1GB. [2022-11-23 14:49:40,718 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 113.2MB. Free memory is still 87.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1250.45ms. Allocated memory is still 161.5MB. Free memory was 119.8MB in the beginning and 123.9MB in the end (delta: -4.1MB). Peak memory consumption was 67.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 175.01ms. Allocated memory is still 161.5MB. Free memory was 123.9MB in the beginning and 109.4MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 202.54ms. Allocated memory is still 161.5MB. Free memory was 109.4MB in the beginning and 96.0MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * RCFGBuilder took 3815.85ms. Allocated memory was 161.5MB in the beginning and 216.0MB in the end (delta: 54.5MB). Free memory was 96.0MB in the beginning and 157.4MB in the end (delta: -61.4MB). Peak memory consumption was 86.3MB. Max. memory is 16.1GB. * TraceAbstraction took 102181.34ms. Allocated memory was 216.0MB in the beginning and 9.6GB in the end (delta: 9.4GB). Free memory was 156.3MB in the beginning and 7.5GB in the end (delta: -7.3GB). Peak memory consumption was 2.2GB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 75409 column 7: canceled de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 75409 column 7: canceled: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:192) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-23 14:49:40,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 1 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e2cb3c9a8570b7ee66b623ed5fd2a1832f018e766f6bb5120cee7430951770d6 --- 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-4e7fbc6 [2022-11-23 14:49:43,370 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:49:43,373 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:49:43,414 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:49:43,415 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:49:43,419 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:49:43,422 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:49:43,425 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:49:43,428 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:49:43,434 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:49:43,435 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:49:43,437 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:49:43,438 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:49:43,440 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:49:43,442 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:49:43,448 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:49:43,449 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:49:43,450 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:49:43,452 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:49:43,457 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:49:43,458 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:49:43,461 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:49:43,462 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:49:43,463 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:49:43,473 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:49:43,474 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:49:43,475 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:49:43,476 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:49:43,477 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:49:43,479 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:49:43,479 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:49:43,480 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:49:43,496 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:49:43,497 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:49:43,498 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:49:43,498 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:49:43,499 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:49:43,499 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:49:43,500 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:49:43,501 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:49:43,501 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:49:43,506 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-32bit-Taipan_Bitvector.epf [2022-11-23 14:49:43,547 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:49:43,548 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:49:43,549 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:49:43,550 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:49:43,551 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:49:43,551 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:49:43,551 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:49:43,551 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:49:43,552 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:49:43,552 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:49:43,553 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:49:43,553 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:49:43,554 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:49:43,554 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:49:43,554 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 14:49:43,555 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:49:43,555 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:49:43,555 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:49:43,555 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:49:43,555 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:49:43,556 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 14:49:43,556 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 14:49:43,556 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 14:49:43,556 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 14:49:43,556 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:49:43,557 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:49:43,557 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:49:43,557 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:49:43,557 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:49:43,558 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 14:49:43,558 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:49:43,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:49:43,558 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:49:43,559 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:49:43,559 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:49:43,559 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-23 14:49:43,559 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 14:49:43,560 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:49:43,560 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:49:43,560 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 14:49:43,560 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2cb3c9a8570b7ee66b623ed5fd2a1832f018e766f6bb5120cee7430951770d6 [2022-11-23 14:49:43,962 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:49:43,991 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:49:43,996 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:49:43,997 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:49:43,998 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:49:44,000 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-1.i [2022-11-23 14:49:47,023 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:49:47,420 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:49:47,420 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-1.i [2022-11-23 14:49:47,451 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/data/9eb2881a5/c4443388748b4673a8a96fffc46b8fe9/FLAG8d0ebe5bc [2022-11-23 14:49:47,479 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/data/9eb2881a5/c4443388748b4673a8a96fffc46b8fe9 [2022-11-23 14:49:47,485 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:49:47,487 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:49:47,490 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:49:47,491 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:49:47,495 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:49:47,495 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:49:47" (1/1) ... [2022-11-23 14:49:47,497 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ae76938 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:49:47, skipping insertion in model container [2022-11-23 14:49:47,497 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:49:47" (1/1) ... [2022-11-23 14:49:47,509 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:49:47,597 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:49:48,221 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-1.i[33021,33034] [2022-11-23 14:49:48,501 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-1.i[84583,84596] [2022-11-23 14:49:48,504 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:49:48,526 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-23 14:49:48,558 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:49:48,590 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-1.i[33021,33034] [2022-11-23 14:49:48,762 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-1.i[84583,84596] [2022-11-23 14:49:48,768 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:49:48,774 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:49:48,820 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-1.i[33021,33034] [2022-11-23 14:49:48,918 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-1.i[84583,84596] [2022-11-23 14:49:48,920 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:49:48,990 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:49:48,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:49:48 WrapperNode [2022-11-23 14:49:48,991 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:49:48,993 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:49:48,993 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:49:48,993 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:49:49,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:49:48" (1/1) ... [2022-11-23 14:49:49,059 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:49:48" (1/1) ... [2022-11-23 14:49:49,159 INFO L138 Inliner]: procedures = 180, calls = 730, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2868 [2022-11-23 14:49:49,159 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:49:49,160 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:49:49,160 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:49:49,160 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:49:49,170 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:49:48" (1/1) ... [2022-11-23 14:49:49,171 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:49:48" (1/1) ... [2022-11-23 14:49:49,191 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:49:48" (1/1) ... [2022-11-23 14:49:49,201 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:49:48" (1/1) ... [2022-11-23 14:49:49,274 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:49:48" (1/1) ... [2022-11-23 14:49:49,316 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:49:48" (1/1) ... [2022-11-23 14:49:49,327 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:49:48" (1/1) ... [2022-11-23 14:49:49,346 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:49:48" (1/1) ... [2022-11-23 14:49:49,365 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:49:49,373 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:49:49,373 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:49:49,373 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:49:49,374 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:49:48" (1/1) ... [2022-11-23 14:49:49,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:49:49,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:49:49,448 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:49:49,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:49:49,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-23 14:49:49,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-23 14:49:49,496 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-23 14:49:49,496 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-23 14:49:49,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 14:49:49,497 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 14:49:49,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 14:49:49,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:49:49,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 14:49:49,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:49:49,498 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-23 14:49:49,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 14:49:49,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:49:49,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-23 14:49:49,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-23 14:49:49,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:49:49,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:49:49,820 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:49:49,822 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:49:59,763 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:49:59,786 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:49:59,787 INFO L300 CfgBuilder]: Removed 54 assume(true) statements. [2022-11-23 14:49:59,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:49:59 BoogieIcfgContainer [2022-11-23 14:49:59,793 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:49:59,796 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:49:59,797 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:49:59,800 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:49:59,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:49:47" (1/3) ... [2022-11-23 14:49:59,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@246fca1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:49:59, skipping insertion in model container [2022-11-23 14:49:59,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:49:48" (2/3) ... [2022-11-23 14:49:59,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@246fca1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:49:59, skipping insertion in model container [2022-11-23 14:49:59,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:49:59" (3/3) ... [2022-11-23 14:49:59,806 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test9-1.i [2022-11-23 14:49:59,822 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:49:59,822 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-23 14:49:59,906 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:49:59,913 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=FINITE_AUTOMATA, 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;@5ca1c4d3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:49:59,913 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-23 14:49:59,922 INFO L276 IsEmpty]: Start isEmpty. Operand has 1177 states, 663 states have (on average 1.9245852187028658) internal successors, (1276), 1171 states have internal predecessors, (1276), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2022-11-23 14:49:59,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-23 14:49:59,928 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:49:59,929 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:49:59,930 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 14:49:59,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:49:59,935 INFO L85 PathProgramCache]: Analyzing trace with hash 552713999, now seen corresponding path program 1 times [2022-11-23 14:49:59,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:49:59,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [462425962] [2022-11-23 14:49:59,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:49:59,949 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:49:59,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:49:59,958 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:49:59,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-23 14:50:00,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:50:00,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-23 14:50:00,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:50:00,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:50:00,252 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:50:00,253 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:50:00,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [462425962] [2022-11-23 14:50:00,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [462425962] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:50:00,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:50:00,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:50:00,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291281224] [2022-11-23 14:50:00,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:50:00,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 14:50:00,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:50:00,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 14:50:00,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:50:00,304 INFO L87 Difference]: Start difference. First operand has 1177 states, 663 states have (on average 1.9245852187028658) internal successors, (1276), 1171 states have internal predecessors, (1276), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2022-11-23 14:50:00,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:50:00,547 INFO L93 Difference]: Finished difference Result 2349 states and 5062 transitions. [2022-11-23 14:50:00,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 14:50:00,549 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) Word has length 7 [2022-11-23 14:50:00,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:50:00,577 INFO L225 Difference]: With dead ends: 2349 [2022-11-23 14:50:00,577 INFO L226 Difference]: Without dead ends: 1170 [2022-11-23 14:50:00,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:50:00,594 INFO L413 NwaCegarLoop]: 2219 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2219 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:50:00,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2219 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 14:50:00,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1170 states. [2022-11-23 14:50:01,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1170 to 1170. [2022-11-23 14:50:01,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1170 states, 660 states have (on average 1.8318181818181818) internal successors, (1209), 1164 states have internal predecessors, (1209), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2022-11-23 14:50:01,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1170 states to 1170 states and 2215 transitions. [2022-11-23 14:50:01,081 INFO L78 Accepts]: Start accepts. Automaton has 1170 states and 2215 transitions. Word has length 7 [2022-11-23 14:50:01,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:50:01,081 INFO L495 AbstractCegarLoop]: Abstraction has 1170 states and 2215 transitions. [2022-11-23 14:50:01,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2022-11-23 14:50:01,082 INFO L276 IsEmpty]: Start isEmpty. Operand 1170 states and 2215 transitions. [2022-11-23 14:50:01,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-23 14:50:01,082 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:50:01,083 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:50:01,107 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-23 14:50:01,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:50:01,298 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 14:50:01,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:50:01,299 INFO L85 PathProgramCache]: Analyzing trace with hash 552715921, now seen corresponding path program 1 times [2022-11-23 14:50:01,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:50:01,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [167786130] [2022-11-23 14:50:01,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:50:01,300 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:50:01,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:50:01,302 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:50:01,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-23 14:50:01,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:50:01,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-23 14:50:01,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:50:01,645 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 36 [2022-11-23 14:50:01,675 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2022-11-23 14:50:01,872 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-23 14:50:01,872 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-11-23 14:50:02,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:02,010 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:50:02,010 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 104 treesize of output 32 [2022-11-23 14:50:02,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:50:02,075 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:50:02,075 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:50:02,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [167786130] [2022-11-23 14:50:02,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [167786130] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:50:02,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:50:02,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:50:02,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453332521] [2022-11-23 14:50:02,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:50:02,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 14:50:02,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:50:02,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 14:50:02,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:50:02,079 INFO L87 Difference]: Start difference. First operand 1170 states and 2215 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 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) [2022-11-23 14:50:07,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:50:09,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:50:22,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:50:22,336 INFO L93 Difference]: Finished difference Result 2285 states and 4364 transitions. [2022-11-23 14:50:22,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 14:50:22,338 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 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) Word has length 7 [2022-11-23 14:50:22,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:50:22,366 INFO L225 Difference]: With dead ends: 2285 [2022-11-23 14:50:22,366 INFO L226 Difference]: Without dead ends: 2283 [2022-11-23 14:50:22,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:50:22,369 INFO L413 NwaCegarLoop]: 2667 mSDtfsCounter, 1184 mSDsluCounter, 7038 mSDsCounter, 0 mSdLazyCounter, 2299 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1684 SdHoareTripleChecker+Valid, 9705 SdHoareTripleChecker+Invalid, 2316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2299 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.7s IncrementalHoareTripleChecker+Time [2022-11-23 14:50:22,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1684 Valid, 9705 Invalid, 2316 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [15 Valid, 2299 Invalid, 2 Unknown, 0 Unchecked, 19.7s Time] [2022-11-23 14:50:22,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2283 states. [2022-11-23 14:50:22,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2283 to 1176. [2022-11-23 14:50:22,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1176 states, 666 states have (on average 1.8258258258258258) internal successors, (1216), 1170 states have internal predecessors, (1216), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2022-11-23 14:50:22,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1176 states to 1176 states and 2222 transitions. [2022-11-23 14:50:22,838 INFO L78 Accepts]: Start accepts. Automaton has 1176 states and 2222 transitions. Word has length 7 [2022-11-23 14:50:22,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:50:22,839 INFO L495 AbstractCegarLoop]: Abstraction has 1176 states and 2222 transitions. [2022-11-23 14:50:22,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 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) [2022-11-23 14:50:22,840 INFO L276 IsEmpty]: Start isEmpty. Operand 1176 states and 2222 transitions. [2022-11-23 14:50:22,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-23 14:50:22,842 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:50:22,842 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:50:22,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-23 14:50:23,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:50:23,059 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 14:50:23,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:50:23,059 INFO L85 PathProgramCache]: Analyzing trace with hash -637019380, now seen corresponding path program 1 times [2022-11-23 14:50:23,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:50:23,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1814026356] [2022-11-23 14:50:23,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:50:23,060 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:50:23,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:50:23,062 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:50:23,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-23 14:50:23,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:50:23,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:50:23,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:50:23,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:50:23,317 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:50:23,317 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:50:23,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1814026356] [2022-11-23 14:50:23,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1814026356] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:50:23,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:50:23,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:50:23,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398034035] [2022-11-23 14:50:23,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:50:23,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:50:23,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:50:23,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:50:23,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:50:23,325 INFO L87 Difference]: Start difference. First operand 1176 states and 2222 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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) [2022-11-23 14:50:23,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:50:23,611 INFO L93 Difference]: Finished difference Result 2255 states and 4322 transitions. [2022-11-23 14:50:23,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:50:23,612 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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) Word has length 45 [2022-11-23 14:50:23,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:50:23,620 INFO L225 Difference]: With dead ends: 2255 [2022-11-23 14:50:23,620 INFO L226 Difference]: Without dead ends: 1185 [2022-11-23 14:50:23,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:50:23,625 INFO L413 NwaCegarLoop]: 2189 mSDtfsCounter, 1083 mSDsluCounter, 2813 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1583 SdHoareTripleChecker+Valid, 5002 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:50:23,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1583 Valid, 5002 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:50:23,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1185 states. [2022-11-23 14:50:23,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1185 to 1179. [2022-11-23 14:50:23,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1179 states, 669 states have (on average 1.8101644245142003) internal successors, (1211), 1173 states have internal predecessors, (1211), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2022-11-23 14:50:23,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1179 states to 1179 states and 2217 transitions. [2022-11-23 14:50:23,934 INFO L78 Accepts]: Start accepts. Automaton has 1179 states and 2217 transitions. Word has length 45 [2022-11-23 14:50:23,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:50:23,935 INFO L495 AbstractCegarLoop]: Abstraction has 1179 states and 2217 transitions. [2022-11-23 14:50:23,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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) [2022-11-23 14:50:23,952 INFO L276 IsEmpty]: Start isEmpty. Operand 1179 states and 2217 transitions. [2022-11-23 14:50:23,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-23 14:50:23,956 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:50:23,956 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:50:23,989 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-23 14:50:24,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:50:24,170 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 14:50:24,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:50:24,171 INFO L85 PathProgramCache]: Analyzing trace with hash 86428058, now seen corresponding path program 1 times [2022-11-23 14:50:24,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:50:24,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1947065312] [2022-11-23 14:50:24,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:50:24,172 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:50:24,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:50:24,173 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:50:24,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-23 14:50:24,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:50:24,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 14:50:24,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:50:24,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:50:24,502 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:50:24,502 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:50:24,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1947065312] [2022-11-23 14:50:24,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1947065312] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:50:24,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:50:24,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:50:24,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409630210] [2022-11-23 14:50:24,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:50:24,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 14:50:24,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:50:24,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 14:50:24,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:50:24,505 INFO L87 Difference]: Start difference. First operand 1179 states and 2217 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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) [2022-11-23 14:50:26,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:50:26,678 INFO L93 Difference]: Finished difference Result 2251 states and 4299 transitions. [2022-11-23 14:50:26,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:50:26,679 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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) Word has length 45 [2022-11-23 14:50:26,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:50:26,689 INFO L225 Difference]: With dead ends: 2251 [2022-11-23 14:50:26,690 INFO L226 Difference]: Without dead ends: 1178 [2022-11-23 14:50:26,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:50:26,703 INFO L413 NwaCegarLoop]: 2189 mSDtfsCounter, 1054 mSDsluCounter, 4491 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1554 SdHoareTripleChecker+Valid, 6680 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:50:26,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1554 Valid, 6680 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 553 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-23 14:50:26,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1178 states. [2022-11-23 14:50:26,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1178 to 1173. [2022-11-23 14:50:26,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1173 states, 663 states have (on average 1.8114630467571644) internal successors, (1201), 1167 states have internal predecessors, (1201), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2022-11-23 14:50:26,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 2207 transitions. [2022-11-23 14:50:26,900 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 2207 transitions. Word has length 45 [2022-11-23 14:50:26,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:50:26,901 INFO L495 AbstractCegarLoop]: Abstraction has 1173 states and 2207 transitions. [2022-11-23 14:50:26,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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) [2022-11-23 14:50:26,901 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 2207 transitions. [2022-11-23 14:50:26,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-23 14:50:26,902 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:50:26,903 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:50:26,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-23 14:50:27,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:50:27,122 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 14:50:27,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:50:27,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1953097750, now seen corresponding path program 1 times [2022-11-23 14:50:27,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:50:27,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [579941422] [2022-11-23 14:50:27,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:50:27,124 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:50:27,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:50:27,126 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:50:27,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-23 14:50:27,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:50:27,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:50:27,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:50:27,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:50:27,357 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:50:27,357 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:50:27,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [579941422] [2022-11-23 14:50:27,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [579941422] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:50:27,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:50:27,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:50:27,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588592898] [2022-11-23 14:50:27,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:50:27,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:50:27,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:50:27,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:50:27,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:50:27,360 INFO L87 Difference]: Start difference. First operand 1173 states and 2207 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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) [2022-11-23 14:50:27,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:50:27,523 INFO L93 Difference]: Finished difference Result 2245 states and 4286 transitions. [2022-11-23 14:50:27,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:50:27,524 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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) Word has length 45 [2022-11-23 14:50:27,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:50:27,532 INFO L225 Difference]: With dead ends: 2245 [2022-11-23 14:50:27,532 INFO L226 Difference]: Without dead ends: 1173 [2022-11-23 14:50:27,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:50:27,537 INFO L413 NwaCegarLoop]: 2199 mSDtfsCounter, 8 mSDsluCounter, 2181 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 4380 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:50:27,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 4380 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:50:27,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1173 states. [2022-11-23 14:50:27,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1173 to 1173. [2022-11-23 14:50:27,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1173 states, 663 states have (on average 1.8054298642533937) internal successors, (1197), 1167 states have internal predecessors, (1197), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2022-11-23 14:50:27,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 2203 transitions. [2022-11-23 14:50:27,813 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 2203 transitions. Word has length 45 [2022-11-23 14:50:27,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:50:27,814 INFO L495 AbstractCegarLoop]: Abstraction has 1173 states and 2203 transitions. [2022-11-23 14:50:27,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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) [2022-11-23 14:50:27,815 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 2203 transitions. [2022-11-23 14:50:27,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-23 14:50:27,819 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:50:27,820 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:50:27,845 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-23 14:50:28,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:50:28,045 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 14:50:28,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:50:28,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1628462743, now seen corresponding path program 1 times [2022-11-23 14:50:28,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:50:28,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [197935272] [2022-11-23 14:50:28,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:50:28,049 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:50:28,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:50:28,050 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:50:28,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-23 14:50:28,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:50:28,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:50:28,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:50:28,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:50:28,572 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:50:28,572 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:50:28,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [197935272] [2022-11-23 14:50:28,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [197935272] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:50:28,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:50:28,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:50:28,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770828957] [2022-11-23 14:50:28,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:50:28,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:50:28,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:50:28,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:50:28,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:50:28,574 INFO L87 Difference]: Start difference. First operand 1173 states and 2203 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2022-11-23 14:50:29,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:50:29,224 INFO L93 Difference]: Finished difference Result 2410 states and 4482 transitions. [2022-11-23 14:50:29,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:50:29,227 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) Word has length 57 [2022-11-23 14:50:29,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:50:29,237 INFO L225 Difference]: With dead ends: 2410 [2022-11-23 14:50:29,237 INFO L226 Difference]: Without dead ends: 1209 [2022-11-23 14:50:29,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:50:29,243 INFO L413 NwaCegarLoop]: 2195 mSDtfsCounter, 59 mSDsluCounter, 2175 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 4370 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:50:29,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 4370 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-23 14:50:29,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1209 states. [2022-11-23 14:50:29,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1209 to 1209. [2022-11-23 14:50:29,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1209 states, 699 states have (on average 1.7796852646638055) internal successors, (1244), 1203 states have internal predecessors, (1244), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2022-11-23 14:50:29,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1209 states to 1209 states and 2250 transitions. [2022-11-23 14:50:29,510 INFO L78 Accepts]: Start accepts. Automaton has 1209 states and 2250 transitions. Word has length 57 [2022-11-23 14:50:29,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:50:29,510 INFO L495 AbstractCegarLoop]: Abstraction has 1209 states and 2250 transitions. [2022-11-23 14:50:29,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2022-11-23 14:50:29,511 INFO L276 IsEmpty]: Start isEmpty. Operand 1209 states and 2250 transitions. [2022-11-23 14:50:29,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-23 14:50:29,513 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:50:29,514 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:50:29,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-23 14:50:29,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:50:29,729 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 14:50:29,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:50:29,729 INFO L85 PathProgramCache]: Analyzing trace with hash -452597190, now seen corresponding path program 1 times [2022-11-23 14:50:29,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:50:29,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1697053950] [2022-11-23 14:50:29,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:50:29,730 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:50:29,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:50:29,736 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:50:29,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-23 14:50:30,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:50:30,357 INFO L263 TraceCheckSpWp]: Trace formula consists of 720 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:50:30,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:50:30,407 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-23 14:50:30,407 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:50:30,407 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:50:30,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1697053950] [2022-11-23 14:50:30,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1697053950] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:50:30,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:50:30,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:50:30,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229644706] [2022-11-23 14:50:30,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:50:30,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:50:30,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:50:30,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:50:30,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:50:30,410 INFO L87 Difference]: Start difference. First operand 1209 states and 2250 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 14:50:30,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:50:30,639 INFO L93 Difference]: Finished difference Result 2415 states and 4503 transitions. [2022-11-23 14:50:30,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:50:30,640 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 73 [2022-11-23 14:50:30,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:50:30,648 INFO L225 Difference]: With dead ends: 2415 [2022-11-23 14:50:30,648 INFO L226 Difference]: Without dead ends: 1217 [2022-11-23 14:50:30,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:50:30,653 INFO L413 NwaCegarLoop]: 2173 mSDtfsCounter, 1182 mSDsluCounter, 2684 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1685 SdHoareTripleChecker+Valid, 4857 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:50:30,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1685 Valid, 4857 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:50:30,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1217 states. [2022-11-23 14:50:30,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1217 to 1215. [2022-11-23 14:50:30,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1215 states, 705 states have (on average 1.750354609929078) internal successors, (1234), 1209 states have internal predecessors, (1234), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2022-11-23 14:50:30,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1215 states to 1215 states and 2240 transitions. [2022-11-23 14:50:30,896 INFO L78 Accepts]: Start accepts. Automaton has 1215 states and 2240 transitions. Word has length 73 [2022-11-23 14:50:30,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:50:30,896 INFO L495 AbstractCegarLoop]: Abstraction has 1215 states and 2240 transitions. [2022-11-23 14:50:30,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 14:50:30,896 INFO L276 IsEmpty]: Start isEmpty. Operand 1215 states and 2240 transitions. [2022-11-23 14:50:30,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-23 14:50:30,897 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:50:30,897 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:50:30,924 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2022-11-23 14:50:31,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:50:31,120 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 14:50:31,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:50:31,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1322556696, now seen corresponding path program 1 times [2022-11-23 14:50:31,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:50:31,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [610512204] [2022-11-23 14:50:31,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:50:31,121 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:50:31,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:50:31,122 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:50:31,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-23 14:50:31,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:50:31,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 711 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 14:50:31,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:50:31,871 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-23 14:50:31,872 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:50:31,872 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:50:31,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [610512204] [2022-11-23 14:50:31,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [610512204] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:50:31,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:50:31,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:50:31,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617220390] [2022-11-23 14:50:31,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:50:31,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 14:50:31,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:50:31,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 14:50:31,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:50:31,875 INFO L87 Difference]: Start difference. First operand 1215 states and 2240 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 14:50:32,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:50:32,113 INFO L93 Difference]: Finished difference Result 2384 states and 4430 transitions. [2022-11-23 14:50:32,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:50:32,114 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 73 [2022-11-23 14:50:32,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:50:32,123 INFO L225 Difference]: With dead ends: 2384 [2022-11-23 14:50:32,123 INFO L226 Difference]: Without dead ends: 1203 [2022-11-23 14:50:32,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:50:32,130 INFO L413 NwaCegarLoop]: 2174 mSDtfsCounter, 1151 mSDsluCounter, 2684 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1654 SdHoareTripleChecker+Valid, 4858 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:50:32,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1654 Valid, 4858 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:50:32,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1203 states. [2022-11-23 14:50:32,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1203 to 1203. [2022-11-23 14:50:32,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1203 states, 693 states have (on average 1.7518037518037517) internal successors, (1214), 1197 states have internal predecessors, (1214), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2022-11-23 14:50:32,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1203 states to 1203 states and 2220 transitions. [2022-11-23 14:50:32,409 INFO L78 Accepts]: Start accepts. Automaton has 1203 states and 2220 transitions. Word has length 73 [2022-11-23 14:50:32,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:50:32,410 INFO L495 AbstractCegarLoop]: Abstraction has 1203 states and 2220 transitions. [2022-11-23 14:50:32,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 14:50:32,410 INFO L276 IsEmpty]: Start isEmpty. Operand 1203 states and 2220 transitions. [2022-11-23 14:50:32,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-23 14:50:32,411 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:50:32,411 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:50:32,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-23 14:50:32,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:50:32,634 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 14:50:32,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:50:32,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1850491950, now seen corresponding path program 1 times [2022-11-23 14:50:32,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:50:32,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2035025436] [2022-11-23 14:50:32,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:50:32,635 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:50:32,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:50:32,636 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:50:32,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-23 14:50:33,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:50:33,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 714 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:50:33,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:50:33,309 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:50:33,310 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:50:33,310 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:50:33,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2035025436] [2022-11-23 14:50:33,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2035025436] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:50:33,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:50:33,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:50:33,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967585490] [2022-11-23 14:50:33,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:50:33,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:50:33,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:50:33,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:50:33,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:50:33,315 INFO L87 Difference]: Start difference. First operand 1203 states and 2220 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 14:50:33,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:50:33,458 INFO L93 Difference]: Finished difference Result 2368 states and 4405 transitions. [2022-11-23 14:50:33,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:50:33,459 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 73 [2022-11-23 14:50:33,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:50:33,469 INFO L225 Difference]: With dead ends: 2368 [2022-11-23 14:50:33,469 INFO L226 Difference]: Without dead ends: 1206 [2022-11-23 14:50:33,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:50:33,479 INFO L413 NwaCegarLoop]: 2178 mSDtfsCounter, 2 mSDsluCounter, 4352 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 6530 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:50:33,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 6530 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 14:50:33,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1206 states. [2022-11-23 14:50:33,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1206 to 1206. [2022-11-23 14:50:33,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1206 states, 695 states have (on average 1.7510791366906475) internal successors, (1217), 1200 states have internal predecessors, (1217), 503 states have call successors, (503), 2 states have call predecessors, (503), 3 states have return successors, (504), 4 states have call predecessors, (504), 503 states have call successors, (504) [2022-11-23 14:50:33,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1206 states to 1206 states and 2224 transitions. [2022-11-23 14:50:33,702 INFO L78 Accepts]: Start accepts. Automaton has 1206 states and 2224 transitions. Word has length 73 [2022-11-23 14:50:33,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:50:33,702 INFO L495 AbstractCegarLoop]: Abstraction has 1206 states and 2224 transitions. [2022-11-23 14:50:33,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 14:50:33,703 INFO L276 IsEmpty]: Start isEmpty. Operand 1206 states and 2224 transitions. [2022-11-23 14:50:33,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-23 14:50:33,703 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:50:33,704 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:50:33,727 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-23 14:50:33,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:50:33,924 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 14:50:33,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:50:33,924 INFO L85 PathProgramCache]: Analyzing trace with hash 852299724, now seen corresponding path program 1 times [2022-11-23 14:50:33,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:50:33,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [760172787] [2022-11-23 14:50:33,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:50:33,925 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:50:33,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:50:33,926 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:50:33,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-23 14:50:34,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:50:34,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 736 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 14:50:34,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:50:34,751 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 14:50:34,751 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:50:34,893 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 14:50:34,893 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:50:34,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [760172787] [2022-11-23 14:50:34,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [760172787] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:50:34,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1737361326] [2022-11-23 14:50:34,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:50:34,895 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 14:50:34,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/cvc4 [2022-11-23 14:50:34,897 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 14:50:34,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2022-11-23 14:50:36,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:50:36,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 736 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 14:50:36,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:50:36,106 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 14:50:36,106 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:50:36,174 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 14:50:36,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1737361326] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:50:36,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [344653087] [2022-11-23 14:50:36,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:50:36,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:50:36,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:50:36,182 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:50:36,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-23 14:50:36,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:50:36,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 736 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 14:50:36,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:50:36,936 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 14:50:36,936 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:50:37,114 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 14:50:37,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [344653087] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:50:37,115 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-23 14:50:37,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 11 [2022-11-23 14:50:37,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434408014] [2022-11-23 14:50:37,115 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-23 14:50:37,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-23 14:50:37,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:50:37,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-23 14:50:37,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-11-23 14:50:37,117 INFO L87 Difference]: Start difference. First operand 1206 states and 2224 transitions. Second operand has 11 states, 11 states have (on average 7.7272727272727275) internal successors, (85), 11 states have internal predecessors, (85), 2 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-23 14:50:37,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:50:37,786 INFO L93 Difference]: Finished difference Result 2386 states and 4433 transitions. [2022-11-23 14:50:37,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-23 14:50:37,787 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.7272727272727275) internal successors, (85), 11 states have internal predecessors, (85), 2 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 75 [2022-11-23 14:50:37,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:50:37,796 INFO L225 Difference]: With dead ends: 2386 [2022-11-23 14:50:37,796 INFO L226 Difference]: Without dead ends: 1221 [2022-11-23 14:50:37,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 455 GetRequests, 435 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=156, Invalid=306, Unknown=0, NotChecked=0, Total=462 [2022-11-23 14:50:37,802 INFO L413 NwaCegarLoop]: 2178 mSDtfsCounter, 53 mSDsluCounter, 13040 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 15218 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:50:37,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 15218 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 14:50:37,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1221 states. [2022-11-23 14:50:38,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1221 to 1217. [2022-11-23 14:50:38,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1217 states, 705 states have (on average 1.75177304964539) internal successors, (1235), 1210 states have internal predecessors, (1235), 503 states have call successors, (503), 3 states have call predecessors, (503), 4 states have return successors, (504), 4 states have call predecessors, (504), 503 states have call successors, (504) [2022-11-23 14:50:38,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1217 states to 1217 states and 2242 transitions. [2022-11-23 14:50:38,098 INFO L78 Accepts]: Start accepts. Automaton has 1217 states and 2242 transitions. Word has length 75 [2022-11-23 14:50:38,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:50:38,099 INFO L495 AbstractCegarLoop]: Abstraction has 1217 states and 2242 transitions. [2022-11-23 14:50:38,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.7272727272727275) internal successors, (85), 11 states have internal predecessors, (85), 2 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-23 14:50:38,108 INFO L276 IsEmpty]: Start isEmpty. Operand 1217 states and 2242 transitions. [2022-11-23 14:50:38,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-23 14:50:38,109 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:50:38,109 INFO L195 NwaCegarLoop]: trace histogram [8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:50:38,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-23 14:50:38,344 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-23 14:50:38,532 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2022-11-23 14:50:38,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt [2022-11-23 14:50:38,724 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 14:50:38,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:50:38,725 INFO L85 PathProgramCache]: Analyzing trace with hash 933733294, now seen corresponding path program 2 times [2022-11-23 14:50:38,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:50:38,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1919167295] [2022-11-23 14:50:38,726 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 14:50:38,726 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:50:38,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:50:38,728 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:50:38,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-23 14:50:39,871 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 14:50:39,872 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:50:39,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 802 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 14:50:39,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:50:40,034 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 28 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-23 14:50:40,034 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:50:40,368 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-23 14:50:40,368 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:50:40,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1919167295] [2022-11-23 14:50:40,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1919167295] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:50:40,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [480100107] [2022-11-23 14:50:40,369 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 14:50:40,369 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 14:50:40,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/cvc4 [2022-11-23 14:50:40,371 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 14:50:40,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2022-11-23 14:50:46,746 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 14:50:46,746 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:50:46,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 802 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 14:50:46,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:50:46,848 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 28 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-23 14:50:46,848 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:50:46,990 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-23 14:50:46,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [480100107] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:50:46,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2114945881] [2022-11-23 14:50:46,991 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 14:50:46,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:50:46,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:50:46,995 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:50:47,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-23 14:59:59,004 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 14:59:59,004 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:59:59,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 802 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-23 14:59:59,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:59:59,183 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 27 proven. 10 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-23 14:59:59,183 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:59:59,617 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 27 proven. 10 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-23 14:59:59,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2114945881] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:59:59,617 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-23 14:59:59,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 8, 8] total 22 [2022-11-23 14:59:59,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897385756] [2022-11-23 14:59:59,618 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-23 14:59:59,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-23 14:59:59,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:59:59,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-23 14:59:59,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2022-11-23 14:59:59,621 INFO L87 Difference]: Start difference. First operand 1217 states and 2242 transitions. Second operand has 22 states, 22 states have (on average 4.409090909090909) internal successors, (97), 22 states have internal predecessors, (97), 2 states have call successors, (4), 2 states have call predecessors, (4), 6 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-23 15:00:01,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:00:01,956 INFO L93 Difference]: Finished difference Result 2419 states and 4483 transitions. [2022-11-23 15:00:01,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-23 15:00:01,957 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 4.409090909090909) internal successors, (97), 22 states have internal predecessors, (97), 2 states have call successors, (4), 2 states have call predecessors, (4), 6 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 81 [2022-11-23 15:00:01,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:00:01,966 INFO L225 Difference]: With dead ends: 2419 [2022-11-23 15:00:01,967 INFO L226 Difference]: Without dead ends: 1237 [2022-11-23 15:00:01,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 507 GetRequests, 460 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 541 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=678, Invalid=1674, Unknown=0, NotChecked=0, Total=2352 [2022-11-23 15:00:01,973 INFO L413 NwaCegarLoop]: 2181 mSDtfsCounter, 237 mSDsluCounter, 28262 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 30443 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-23 15:00:01,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 30443 Invalid, 325 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [54 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-23 15:00:01,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1237 states. [2022-11-23 15:00:02,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1237 to 1229. [2022-11-23 15:00:02,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1229 states, 717 states have (on average 1.7461645746164574) internal successors, (1252), 1222 states have internal predecessors, (1252), 503 states have call successors, (503), 3 states have call predecessors, (503), 4 states have return successors, (504), 4 states have call predecessors, (504), 503 states have call successors, (504) [2022-11-23 15:00:02,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1229 states to 1229 states and 2259 transitions. [2022-11-23 15:00:02,212 INFO L78 Accepts]: Start accepts. Automaton has 1229 states and 2259 transitions. Word has length 81 [2022-11-23 15:00:02,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:00:02,214 INFO L495 AbstractCegarLoop]: Abstraction has 1229 states and 2259 transitions. [2022-11-23 15:00:02,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 4.409090909090909) internal successors, (97), 22 states have internal predecessors, (97), 2 states have call successors, (4), 2 states have call predecessors, (4), 6 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-23 15:00:02,214 INFO L276 IsEmpty]: Start isEmpty. Operand 1229 states and 2259 transitions. [2022-11-23 15:00:02,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-23 15:00:02,215 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:00:02,215 INFO L195 NwaCegarLoop]: trace histogram [20, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:00:02,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (15)] Forceful destruction successful, exit code 0 [2022-11-23 15:00:02,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-23 15:00:02,696 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-23 15:00:02,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:00:02,829 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 15:00:02,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:00:02,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1922378478, now seen corresponding path program 3 times [2022-11-23 15:00:02,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:00:02,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [274336459] [2022-11-23 15:00:02,830 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 15:00:02,831 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:00:02,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:00:02,832 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:00:02,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-23 15:00:07,835 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-11-23 15:00:07,835 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 15:00:07,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 912 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-23 15:00:07,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:00:08,164 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 123 proven. 55 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-23 15:00:08,164 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:00:09,353 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 123 proven. 55 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-23 15:00:09,353 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:00:09,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [274336459] [2022-11-23 15:00:09,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [274336459] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:00:09,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1424551991] [2022-11-23 15:00:09,354 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 15:00:09,354 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 15:00:09,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/cvc4 [2022-11-23 15:00:09,355 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 15:00:09,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2022-11-23 15:02:04,664 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-11-23 15:02:04,665 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 15:02:04,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 912 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-23 15:02:04,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:02:04,898 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 123 proven. 55 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-23 15:02:04,898 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:02:05,206 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 123 proven. 55 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-23 15:02:05,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1424551991] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:02:05,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733780543] [2022-11-23 15:02:05,207 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 15:02:05,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:02:05,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:02:05,214 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:02:05,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_987c3d10-e04d-4ed9-8445-1ce8be395def/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process