./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5e519f3a 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_b81d3174-dbb0-41cf-8d84-c722d7408f48/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81d3174-dbb0-41cf-8d84-c722d7408f48/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81d3174-dbb0-41cf-8d84-c722d7408f48/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81d3174-dbb0-41cf-8d84-c722d7408f48/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81d3174-dbb0-41cf-8d84-c722d7408f48/bin/uautomizer-Dbtcem3rbc/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81d3174-dbb0-41cf-8d84-c722d7408f48/bin/uautomizer-Dbtcem3rbc --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 67499ec0709cfdcc368630c5b1d94f26157589b8bf16f22cf5d62554760c6dd7 --- 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-5e519f3 [2022-11-02 19:55:33,065 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 19:55:33,072 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 19:55:33,129 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 19:55:33,130 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 19:55:33,135 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 19:55:33,138 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 19:55:33,142 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 19:55:33,144 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 19:55:33,151 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 19:55:33,152 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 19:55:33,155 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 19:55:33,156 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 19:55:33,159 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 19:55:33,162 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 19:55:33,164 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 19:55:33,166 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 19:55:33,167 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 19:55:33,169 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 19:55:33,178 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 19:55:33,180 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 19:55:33,182 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 19:55:33,186 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 19:55:33,187 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 19:55:33,198 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 19:55:33,199 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 19:55:33,199 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 19:55:33,201 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 19:55:33,202 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 19:55:33,204 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 19:55:33,206 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 19:55:33,207 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 19:55:33,210 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 19:55:33,212 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 19:55:33,213 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 19:55:33,214 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 19:55:33,215 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 19:55:33,215 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 19:55:33,216 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 19:55:33,217 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 19:55:33,218 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 19:55:33,219 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81d3174-dbb0-41cf-8d84-c722d7408f48/bin/uautomizer-Dbtcem3rbc/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-02 19:55:33,270 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 19:55:33,270 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 19:55:33,271 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 19:55:33,272 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 19:55:33,273 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 19:55:33,273 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 19:55:33,274 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 19:55:33,274 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 19:55:33,275 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 19:55:33,275 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 19:55:33,277 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 19:55:33,277 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 19:55:33,278 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 19:55:33,278 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 19:55:33,279 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 19:55:33,279 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 19:55:33,279 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 19:55:33,280 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 19:55:33,280 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-02 19:55:33,280 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 19:55:33,281 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 19:55:33,281 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 19:55:33,282 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 19:55:33,282 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 19:55:33,282 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 19:55:33,283 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 19:55:33,283 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 19:55:33,284 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 19:55:33,284 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 19:55:33,284 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 19:55:33,285 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 19:55:33,285 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 19:55:33,286 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 19:55:33,286 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_b81d3174-dbb0-41cf-8d84-c722d7408f48/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81d3174-dbb0-41cf-8d84-c722d7408f48/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 67499ec0709cfdcc368630c5b1d94f26157589b8bf16f22cf5d62554760c6dd7 [2022-11-02 19:55:33,706 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 19:55:33,746 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 19:55:33,749 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 19:55:33,751 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 19:55:33,752 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 19:55:33,754 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81d3174-dbb0-41cf-8d84-c722d7408f48/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-1.i [2022-11-02 19:55:33,846 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81d3174-dbb0-41cf-8d84-c722d7408f48/bin/uautomizer-Dbtcem3rbc/data/abcc046f3/e64a8e04af184d0ab9fa6396731ae599/FLAG2a02535a4 [2022-11-02 19:55:34,621 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 19:55:34,622 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81d3174-dbb0-41cf-8d84-c722d7408f48/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-1.i [2022-11-02 19:55:34,655 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81d3174-dbb0-41cf-8d84-c722d7408f48/bin/uautomizer-Dbtcem3rbc/data/abcc046f3/e64a8e04af184d0ab9fa6396731ae599/FLAG2a02535a4 [2022-11-02 19:55:34,839 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81d3174-dbb0-41cf-8d84-c722d7408f48/bin/uautomizer-Dbtcem3rbc/data/abcc046f3/e64a8e04af184d0ab9fa6396731ae599 [2022-11-02 19:55:34,844 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 19:55:34,846 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 19:55:34,850 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 19:55:34,851 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 19:55:34,855 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 19:55:34,856 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 07:55:34" (1/1) ... [2022-11-02 19:55:34,858 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64609eb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:55:34, skipping insertion in model container [2022-11-02 19:55:34,858 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 07:55:34" (1/1) ... [2022-11-02 19:55:34,867 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 19:55:34,955 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 19:55:35,545 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81d3174-dbb0-41cf-8d84-c722d7408f48/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-1.i[33021,33034] [2022-11-02 19:55:35,746 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81d3174-dbb0-41cf-8d84-c722d7408f48/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-1.i[44124,44137] [2022-11-02 19:55:35,747 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81d3174-dbb0-41cf-8d84-c722d7408f48/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-1.i[44245,44258] [2022-11-02 19:55:35,755 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 19:55:35,766 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 19:55:35,824 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81d3174-dbb0-41cf-8d84-c722d7408f48/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-1.i[33021,33034] [2022-11-02 19:55:35,890 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81d3174-dbb0-41cf-8d84-c722d7408f48/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-1.i[44124,44137] [2022-11-02 19:55:35,891 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81d3174-dbb0-41cf-8d84-c722d7408f48/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-1.i[44245,44258] [2022-11-02 19:55:35,897 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 19:55:35,939 INFO L208 MainTranslator]: Completed translation [2022-11-02 19:55:35,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:55:35 WrapperNode [2022-11-02 19:55:35,940 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 19:55:35,941 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 19:55:35,941 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 19:55:35,942 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 19:55:35,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:55:35" (1/1) ... [2022-11-02 19:55:35,987 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:55:35" (1/1) ... [2022-11-02 19:55:36,064 INFO L138 Inliner]: procedures = 176, calls = 277, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1002 [2022-11-02 19:55:36,064 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 19:55:36,065 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 19:55:36,066 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 19:55:36,066 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 19:55:36,077 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:55:35" (1/1) ... [2022-11-02 19:55:36,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:55:35" (1/1) ... [2022-11-02 19:55:36,090 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:55:35" (1/1) ... [2022-11-02 19:55:36,090 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:55:35" (1/1) ... [2022-11-02 19:55:36,138 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:55:35" (1/1) ... [2022-11-02 19:55:36,152 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:55:35" (1/1) ... [2022-11-02 19:55:36,156 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:55:35" (1/1) ... [2022-11-02 19:55:36,162 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:55:35" (1/1) ... [2022-11-02 19:55:36,173 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 19:55:36,174 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 19:55:36,174 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 19:55:36,175 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 19:55:36,176 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:55:35" (1/1) ... [2022-11-02 19:55:36,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 19:55:36,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81d3174-dbb0-41cf-8d84-c722d7408f48/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 19:55:36,220 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81d3174-dbb0-41cf-8d84-c722d7408f48/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 19:55:36,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81d3174-dbb0-41cf-8d84-c722d7408f48/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 19:55:36,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 19:55:36,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 19:55:36,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-02 19:55:36,286 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-02 19:55:36,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 19:55:36,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 19:55:36,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-02 19:55:36,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 19:55:36,287 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-02 19:55:36,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-02 19:55:36,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 19:55:36,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 19:55:36,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 19:55:36,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 19:55:36,595 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 19:55:36,597 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 19:55:38,576 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 19:55:38,585 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 19:55:38,585 INFO L300 CfgBuilder]: Removed 63 assume(true) statements. [2022-11-02 19:55:38,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 07:55:38 BoogieIcfgContainer [2022-11-02 19:55:38,588 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 19:55:38,590 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 19:55:38,590 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 19:55:38,594 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 19:55:38,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 07:55:34" (1/3) ... [2022-11-02 19:55:38,596 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d50ac9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 07:55:38, skipping insertion in model container [2022-11-02 19:55:38,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:55:35" (2/3) ... [2022-11-02 19:55:38,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d50ac9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 07:55:38, skipping insertion in model container [2022-11-02 19:55:38,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 07:55:38" (3/3) ... [2022-11-02 19:55:38,600 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test7-1.i [2022-11-02 19:55:38,619 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 19:55:38,620 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-02 19:55:38,712 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 19:55:38,722 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;@352b007c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 19:55:38,722 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-02 19:55:38,728 INFO L276 IsEmpty]: Start isEmpty. Operand has 194 states, 183 states have (on average 1.7049180327868851) internal successors, (312), 189 states have internal predecessors, (312), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-02 19:55:38,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-02 19:55:38,736 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 19:55:38,737 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-02 19:55:38,737 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-02 19:55:38,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:55:38,743 INFO L85 PathProgramCache]: Analyzing trace with hash 552713999, now seen corresponding path program 1 times [2022-11-02 19:55:38,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:55:38,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607409476] [2022-11-02 19:55:38,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:55:38,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:55:38,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:55:38,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:55:38,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607409476] [2022-11-02 19:55:38,993 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-02 19:55:38,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [588156603] [2022-11-02 19:55:38,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:55:38,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 19:55:38,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81d3174-dbb0-41cf-8d84-c722d7408f48/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 19:55:38,999 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81d3174-dbb0-41cf-8d84-c722d7408f48/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 19:55:39,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81d3174-dbb0-41cf-8d84-c722d7408f48/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-02 19:55:39,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:55:39,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-02 19:55:39,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 19:55:39,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 19:55:39,227 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 19:55:39,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [588156603] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:55:39,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:55:39,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 19:55:39,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087323850] [2022-11-02 19:55:39,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:55:39,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-02 19:55:39,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:55:39,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-02 19:55:39,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 19:55:39,278 INFO L87 Difference]: Start difference. First operand has 194 states, 183 states have (on average 1.7049180327868851) internal successors, (312), 189 states have internal predecessors, (312), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) 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) [2022-11-02 19:55:39,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 19:55:39,350 INFO L93 Difference]: Finished difference Result 385 states and 633 transitions. [2022-11-02 19:55:39,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-02 19:55:39,353 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 [2022-11-02 19:55:39,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 19:55:39,363 INFO L225 Difference]: With dead ends: 385 [2022-11-02 19:55:39,366 INFO L226 Difference]: Without dead ends: 187 [2022-11-02 19:55:39,370 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 [2022-11-02 19:55:39,376 INFO L413 NwaCegarLoop]: 248 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, 248 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 [2022-11-02 19:55:39,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 19:55:39,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2022-11-02 19:55:39,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2022-11-02 19:55:39,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 177 states have (on average 1.3333333333333333) internal successors, (236), 182 states have internal predecessors, (236), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-02 19:55:39,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 242 transitions. [2022-11-02 19:55:39,464 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 242 transitions. Word has length 7 [2022-11-02 19:55:39,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 19:55:39,465 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 242 transitions. [2022-11-02 19:55:39,465 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) [2022-11-02 19:55:39,466 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 242 transitions. [2022-11-02 19:55:39,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-02 19:55:39,467 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 19:55:39,467 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-02 19:55:39,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81d3174-dbb0-41cf-8d84-c722d7408f48/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-02 19:55:39,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81d3174-dbb0-41cf-8d84-c722d7408f48/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-02 19:55:39,682 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-02 19:55:39,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:55:39,683 INFO L85 PathProgramCache]: Analyzing trace with hash 552715921, now seen corresponding path program 1 times [2022-11-02 19:55:39,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:55:39,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159169644] [2022-11-02 19:55:39,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:55:39,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:55:39,733 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 19:55:39,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1107943188] [2022-11-02 19:55:39,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:55:39,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 19:55:39,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81d3174-dbb0-41cf-8d84-c722d7408f48/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 19:55:39,745 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81d3174-dbb0-41cf-8d84-c722d7408f48/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 19:55:39,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81d3174-dbb0-41cf-8d84-c722d7408f48/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-02 19:55:39,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:55:39,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-02 19:55:39,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 19:55:40,006 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-02 19:55:40,021 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-02 19:55:40,102 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-02 19:55:40,103 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-02 19:55:40,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 19:55:40,163 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 15 treesize of output 7 [2022-11-02 19:55:40,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 19:55:40,179 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 19:55:40,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:55:40,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159169644] [2022-11-02 19:55:40,180 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 19:55:40,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1107943188] [2022-11-02 19:55:40,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1107943188] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:55:40,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:55:40,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 19:55:40,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164878707] [2022-11-02 19:55:40,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:55:40,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 19:55:40,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:55:40,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 19:55:40,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 19:55:40,184 INFO L87 Difference]: Start difference. First operand 187 states and 242 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 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) [2022-11-02 19:55:41,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 19:55:41,103 INFO L93 Difference]: Finished difference Result 306 states and 400 transitions. [2022-11-02 19:55:41,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 19:55:41,104 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 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 [2022-11-02 19:55:41,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 19:55:41,108 INFO L225 Difference]: With dead ends: 306 [2022-11-02 19:55:41,108 INFO L226 Difference]: Without dead ends: 304 [2022-11-02 19:55:41,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-02 19:55:41,110 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 188 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 722 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-02 19:55:41,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 722 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-02 19:55:41,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2022-11-02 19:55:41,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 193. [2022-11-02 19:55:41,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 183 states have (on average 1.3278688524590163) internal successors, (243), 188 states have internal predecessors, (243), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-02 19:55:41,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 249 transitions. [2022-11-02 19:55:41,130 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 249 transitions. Word has length 7 [2022-11-02 19:55:41,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 19:55:41,130 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 249 transitions. [2022-11-02 19:55:41,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 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) [2022-11-02 19:55:41,131 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 249 transitions. [2022-11-02 19:55:41,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-11-02 19:55:41,133 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 19:55:41,133 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] [2022-11-02 19:55:41,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81d3174-dbb0-41cf-8d84-c722d7408f48/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-02 19:55:41,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81d3174-dbb0-41cf-8d84-c722d7408f48/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 19:55:41,358 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-02 19:55:41,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:55:41,359 INFO L85 PathProgramCache]: Analyzing trace with hash -385089840, now seen corresponding path program 1 times [2022-11-02 19:55:41,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:55:41,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143565978] [2022-11-02 19:55:41,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:55:41,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:55:41,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:55:41,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 19:55:41,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:55:41,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143565978] [2022-11-02 19:55:41,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143565978] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:55:41,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:55:41,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 19:55:41,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594665180] [2022-11-02 19:55:41,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:55:41,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 19:55:41,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:55:41,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 19:55:41,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 19:55:41,930 INFO L87 Difference]: Start difference. First operand 193 states and 249 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:55:42,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 19:55:42,390 INFO L93 Difference]: Finished difference Result 355 states and 462 transitions. [2022-11-02 19:55:42,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 19:55:42,390 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2022-11-02 19:55:42,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 19:55:42,392 INFO L225 Difference]: With dead ends: 355 [2022-11-02 19:55:42,392 INFO L226 Difference]: Without dead ends: 270 [2022-11-02 19:55:42,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 19:55:42,394 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 99 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 19:55:42,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 607 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-02 19:55:42,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2022-11-02 19:55:42,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 193. [2022-11-02 19:55:42,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 183 states have (on average 1.3224043715846994) internal successors, (242), 188 states have internal predecessors, (242), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-02 19:55:42,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 248 transitions. [2022-11-02 19:55:42,408 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 248 transitions. Word has length 50 [2022-11-02 19:55:42,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 19:55:42,408 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 248 transitions. [2022-11-02 19:55:42,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:55:42,409 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 248 transitions. [2022-11-02 19:55:42,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-02 19:55:42,410 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 19:55:42,410 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] [2022-11-02 19:55:42,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 19:55:42,411 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-02 19:55:42,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:55:42,412 INFO L85 PathProgramCache]: Analyzing trace with hash 305892652, now seen corresponding path program 1 times [2022-11-02 19:55:42,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:55:42,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620628906] [2022-11-02 19:55:42,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:55:42,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:55:42,618 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 19:55:42,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1268941092] [2022-11-02 19:55:42,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:55:42,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 19:55:42,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81d3174-dbb0-41cf-8d84-c722d7408f48/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 19:55:42,626 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81d3174-dbb0-41cf-8d84-c722d7408f48/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 19:55:42,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81d3174-dbb0-41cf-8d84-c722d7408f48/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-02 19:55:43,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:55:43,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 1536 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-02 19:55:43,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 19:55:43,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 19:55:43,435 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 19:55:43,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:55:43,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620628906] [2022-11-02 19:55:43,436 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 19:55:43,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1268941092] [2022-11-02 19:55:43,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1268941092] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:55:43,437 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:55:43,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 19:55:43,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052100258] [2022-11-02 19:55:43,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:55:43,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 19:55:43,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:55:43,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 19:55:43,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 19:55:43,442 INFO L87 Difference]: Start difference. First operand 193 states and 248 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) [2022-11-02 19:55:43,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 19:55:43,544 INFO L93 Difference]: Finished difference Result 399 states and 519 transitions. [2022-11-02 19:55:43,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 19:55:43,545 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 [2022-11-02 19:55:43,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 19:55:43,546 INFO L225 Difference]: With dead ends: 399 [2022-11-02 19:55:43,547 INFO L226 Difference]: Without dead ends: 214 [2022-11-02 19:55:43,548 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 [2022-11-02 19:55:43,549 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 9 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 19:55:43,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 429 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 19:55:43,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2022-11-02 19:55:43,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 213. [2022-11-02 19:55:43,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 203 states have (on average 1.29064039408867) internal successors, (262), 208 states have internal predecessors, (262), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-02 19:55:43,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 268 transitions. [2022-11-02 19:55:43,562 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 268 transitions. Word has length 57 [2022-11-02 19:55:43,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 19:55:43,563 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 268 transitions. [2022-11-02 19:55:43,563 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) [2022-11-02 19:55:43,563 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 268 transitions. [2022-11-02 19:55:43,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-02 19:55:43,565 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 19:55:43,565 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] [2022-11-02 19:55:43,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81d3174-dbb0-41cf-8d84-c722d7408f48/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-02 19:55:43,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81d3174-dbb0-41cf-8d84-c722d7408f48/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 19:55:43,786 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-02 19:55:43,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:55:43,787 INFO L85 PathProgramCache]: Analyzing trace with hash 815365742, now seen corresponding path program 1 times [2022-11-02 19:55:43,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:55:43,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966736415] [2022-11-02 19:55:43,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:55:43,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:55:43,928 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 19:55:43,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [842386203] [2022-11-02 19:55:43,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:55:43,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 19:55:43,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81d3174-dbb0-41cf-8d84-c722d7408f48/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 19:55:43,939 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81d3174-dbb0-41cf-8d84-c722d7408f48/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 19:55:43,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81d3174-dbb0-41cf-8d84-c722d7408f48/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-02 19:55:44,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:55:44,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 1538 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-02 19:55:44,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 19:55:44,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 19:55:44,834 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 19:55:44,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:55:44,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966736415] [2022-11-02 19:55:44,835 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 19:55:44,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [842386203] [2022-11-02 19:55:44,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [842386203] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:55:44,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:55:44,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 19:55:44,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714635285] [2022-11-02 19:55:44,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:55:44,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 19:55:44,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:55:44,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 19:55:44,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 19:55:44,838 INFO L87 Difference]: Start difference. First operand 213 states and 268 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 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) [2022-11-02 19:55:44,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 19:55:44,946 INFO L93 Difference]: Finished difference Result 408 states and 518 transitions. [2022-11-02 19:55:44,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 19:55:44,947 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 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 [2022-11-02 19:55:44,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 19:55:44,949 INFO L225 Difference]: With dead ends: 408 [2022-11-02 19:55:44,949 INFO L226 Difference]: Without dead ends: 203 [2022-11-02 19:55:44,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 19:55:44,951 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 220 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 19:55:44,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 453 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 19:55:44,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2022-11-02 19:55:44,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 199. [2022-11-02 19:55:44,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 189 states have (on average 1.2751322751322751) internal successors, (241), 194 states have internal predecessors, (241), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-02 19:55:44,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 247 transitions. [2022-11-02 19:55:44,971 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 247 transitions. Word has length 57 [2022-11-02 19:55:44,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 19:55:44,972 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 247 transitions. [2022-11-02 19:55:44,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 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) [2022-11-02 19:55:44,972 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 247 transitions. [2022-11-02 19:55:44,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-02 19:55:44,990 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 19:55:44,991 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] [2022-11-02 19:55:45,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81d3174-dbb0-41cf-8d84-c722d7408f48/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-02 19:55:45,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81d3174-dbb0-41cf-8d84-c722d7408f48/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 19:55:45,210 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-02 19:55:45,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:55:45,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1455665376, now seen corresponding path program 1 times [2022-11-02 19:55:45,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:55:45,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856103738] [2022-11-02 19:55:45,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:55:45,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:55:45,354 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 19:55:45,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [828766186] [2022-11-02 19:55:45,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:55:45,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 19:55:45,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81d3174-dbb0-41cf-8d84-c722d7408f48/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 19:55:45,356 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81d3174-dbb0-41cf-8d84-c722d7408f48/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 19:55:45,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81d3174-dbb0-41cf-8d84-c722d7408f48/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-02 19:55:46,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:55:46,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 1524 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 19:55:46,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 19:55:46,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 19:55:46,595 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 19:55:46,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:55:46,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856103738] [2022-11-02 19:55:46,596 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 19:55:46,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [828766186] [2022-11-02 19:55:46,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [828766186] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:55:46,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:55:46,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 19:55:46,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219765202] [2022-11-02 19:55:46,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:55:46,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 19:55:46,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:55:46,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 19:55:46,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 19:55:46,599 INFO L87 Difference]: Start difference. First operand 199 states and 247 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) [2022-11-02 19:55:46,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 19:55:46,763 INFO L93 Difference]: Finished difference Result 499 states and 622 transitions. [2022-11-02 19:55:46,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 19:55:46,764 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 [2022-11-02 19:55:46,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 19:55:46,767 INFO L225 Difference]: With dead ends: 499 [2022-11-02 19:55:46,767 INFO L226 Difference]: Without dead ends: 308 [2022-11-02 19:55:46,768 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 [2022-11-02 19:55:46,769 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 99 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 19:55:46,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 479 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 19:55:46,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2022-11-02 19:55:46,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 305. [2022-11-02 19:55:46,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 295 states have (on average 1.2677966101694915) internal successors, (374), 300 states have internal predecessors, (374), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-02 19:55:46,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 380 transitions. [2022-11-02 19:55:46,805 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 380 transitions. Word has length 57 [2022-11-02 19:55:46,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 19:55:46,805 INFO L495 AbstractCegarLoop]: Abstraction has 305 states and 380 transitions. [2022-11-02 19:55:46,806 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) [2022-11-02 19:55:46,806 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 380 transitions. [2022-11-02 19:55:46,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-02 19:55:46,808 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 19:55:46,808 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] [2022-11-02 19:55:46,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81d3174-dbb0-41cf-8d84-c722d7408f48/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-02 19:55:47,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81d3174-dbb0-41cf-8d84-c722d7408f48/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-02 19:55:47,010 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-02 19:55:47,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:55:47,010 INFO L85 PathProgramCache]: Analyzing trace with hash 984432562, now seen corresponding path program 1 times [2022-11-02 19:55:47,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:55:47,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315703439] [2022-11-02 19:55:47,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:55:47,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:55:47,081 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 19:55:47,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1702054023] [2022-11-02 19:55:47,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:55:47,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 19:55:47,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81d3174-dbb0-41cf-8d84-c722d7408f48/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 19:55:47,085 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81d3174-dbb0-41cf-8d84-c722d7408f48/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 19:55:47,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81d3174-dbb0-41cf-8d84-c722d7408f48/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-02 19:55:47,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:55:47,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 661 conjuncts, 164 conjunts are in the unsatisfiable core [2022-11-02 19:55:47,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 19:55:47,868 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-02 19:55:47,878 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-02 19:55:47,939 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-02 19:55:47,940 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-02 19:55:48,025 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-02 19:55:48,087 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-02 19:55:48,841 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-02 19:55:48,870 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-02 19:55:48,900 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-02 19:55:48,917 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-02 19:55:48,938 INFO L356 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2022-11-02 19:55:48,938 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 30 [2022-11-02 19:55:49,021 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-02 19:56:04,366 INFO L244 Elim1Store]: Index analysis took 1102 ms