./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-atomic/read_write_lock-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_dece1f99-d1c5-4bb1-9d75-b8861d464430/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dece1f99-d1c5-4bb1-9d75-b8861d464430/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_dece1f99-d1c5-4bb1-9d75-b8861d464430/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dece1f99-d1c5-4bb1-9d75-b8861d464430/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-atomic/read_write_lock-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dece1f99-d1c5-4bb1-9d75-b8861d464430/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_dece1f99-d1c5-4bb1-9d75-b8861d464430/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 8fab2e995569cc819974baee7d52d8d4bdabd2a2896c83fb3b8d07b44f394c5b --- 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 20:34:09,652 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:34:09,655 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:34:09,705 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:34:09,706 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:34:09,710 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:34:09,712 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:34:09,715 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:34:09,717 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:34:09,723 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:34:09,724 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:34:09,726 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:34:09,727 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:34:09,729 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:34:09,731 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:34:09,733 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:34:09,734 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:34:09,735 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:34:09,737 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:34:09,744 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:34:09,746 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:34:09,747 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:34:09,750 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:34:09,751 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:34:09,759 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:34:09,760 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:34:09,760 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:34:09,762 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:34:09,762 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:34:09,765 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:34:09,765 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:34:09,766 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:34:09,768 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:34:09,770 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:34:09,771 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:34:09,771 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:34:09,771 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:34:09,772 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:34:09,772 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:34:09,773 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:34:09,773 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:34:09,774 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dece1f99-d1c5-4bb1-9d75-b8861d464430/bin/uautomizer-Dbtcem3rbc/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-02 20:34:09,812 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:34:09,813 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:34:09,813 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:34:09,813 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:34:09,814 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:34:09,814 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:34:09,815 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:34:09,815 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:34:09,815 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:34:09,815 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:34:09,816 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:34:09,816 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:34:09,816 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:34:09,816 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:34:09,816 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:34:09,817 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:34:09,817 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:34:09,817 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:34:09,817 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-02 20:34:09,817 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:34:09,818 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:34:09,818 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:34:09,818 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:34:09,818 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:34:09,818 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:34:09,819 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:34:09,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:34:09,820 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:34:09,821 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:34:09,821 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:34:09,821 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:34:09,821 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:34:09,822 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:34:09,822 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_dece1f99-d1c5-4bb1-9d75-b8861d464430/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dece1f99-d1c5-4bb1-9d75-b8861d464430/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8fab2e995569cc819974baee7d52d8d4bdabd2a2896c83fb3b8d07b44f394c5b [2022-11-02 20:34:10,134 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:34:10,169 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:34:10,172 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:34:10,173 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:34:10,174 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:34:10,180 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dece1f99-d1c5-4bb1-9d75-b8861d464430/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/pthread-atomic/read_write_lock-1.i [2022-11-02 20:34:10,244 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dece1f99-d1c5-4bb1-9d75-b8861d464430/bin/uautomizer-Dbtcem3rbc/data/eecedb6df/ef66ef47a7c44f60887acf1673d5e943/FLAG01421b4a5 [2022-11-02 20:34:10,791 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:34:10,792 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dece1f99-d1c5-4bb1-9d75-b8861d464430/sv-benchmarks/c/pthread-atomic/read_write_lock-1.i [2022-11-02 20:34:10,813 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dece1f99-d1c5-4bb1-9d75-b8861d464430/bin/uautomizer-Dbtcem3rbc/data/eecedb6df/ef66ef47a7c44f60887acf1673d5e943/FLAG01421b4a5 [2022-11-02 20:34:11,061 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dece1f99-d1c5-4bb1-9d75-b8861d464430/bin/uautomizer-Dbtcem3rbc/data/eecedb6df/ef66ef47a7c44f60887acf1673d5e943 [2022-11-02 20:34:11,065 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:34:11,067 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:34:11,071 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:34:11,071 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:34:11,074 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:34:11,075 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:34:11" (1/1) ... [2022-11-02 20:34:11,077 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42e4a72e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:34:11, skipping insertion in model container [2022-11-02 20:34:11,078 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:34:11" (1/1) ... [2022-11-02 20:34:11,085 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:34:11,142 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:34:11,382 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-02 20:34:11,518 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_dece1f99-d1c5-4bb1-9d75-b8861d464430/sv-benchmarks/c/pthread-atomic/read_write_lock-1.i[31246,31259] [2022-11-02 20:34:11,525 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:34:11,532 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:34:11,547 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-02 20:34:11,566 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_dece1f99-d1c5-4bb1-9d75-b8861d464430/sv-benchmarks/c/pthread-atomic/read_write_lock-1.i[31246,31259] [2022-11-02 20:34:11,571 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:34:11,619 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:34:11,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:34:11 WrapperNode [2022-11-02 20:34:11,620 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:34:11,621 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:34:11,622 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:34:11,622 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:34:11,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:34:11" (1/1) ... [2022-11-02 20:34:11,665 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:34:11" (1/1) ... [2022-11-02 20:34:11,700 INFO L138 Inliner]: procedures = 175, calls = 46, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 118 [2022-11-02 20:34:11,700 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:34:11,701 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:34:11,701 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:34:11,702 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:34:11,710 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:34:11" (1/1) ... [2022-11-02 20:34:11,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:34:11" (1/1) ... [2022-11-02 20:34:11,727 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:34:11" (1/1) ... [2022-11-02 20:34:11,732 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:34:11" (1/1) ... [2022-11-02 20:34:11,738 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:34:11" (1/1) ... [2022-11-02 20:34:11,740 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:34:11" (1/1) ... [2022-11-02 20:34:11,749 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:34:11" (1/1) ... [2022-11-02 20:34:11,750 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:34:11" (1/1) ... [2022-11-02 20:34:11,753 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:34:11,753 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:34:11,754 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:34:11,754 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:34:11,765 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:34:11" (1/1) ... [2022-11-02 20:34:11,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:34:11,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dece1f99-d1c5-4bb1-9d75-b8861d464430/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:34:11,799 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dece1f99-d1c5-4bb1-9d75-b8861d464430/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:34:11,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dece1f99-d1c5-4bb1-9d75-b8861d464430/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:34:11,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:34:11,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:34:11,846 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-02 20:34:11,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:34:11,848 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2022-11-02 20:34:11,848 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2022-11-02 20:34:11,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:34:11,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:34:11,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:34:11,849 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-02 20:34:11,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:34:11,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:34:11,849 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2022-11-02 20:34:11,849 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2022-11-02 20:34:11,851 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 20:34:12,063 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:34:12,065 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:34:12,319 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:34:12,377 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:34:12,377 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-02 20:34:12,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:34:12 BoogieIcfgContainer [2022-11-02 20:34:12,380 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:34:12,383 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:34:12,383 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:34:12,386 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:34:12,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:34:11" (1/3) ... [2022-11-02 20:34:12,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d70d96c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:34:12, skipping insertion in model container [2022-11-02 20:34:12,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:34:11" (2/3) ... [2022-11-02 20:34:12,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d70d96c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:34:12, skipping insertion in model container [2022-11-02 20:34:12,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:34:12" (3/3) ... [2022-11-02 20:34:12,389 INFO L112 eAbstractionObserver]: Analyzing ICFG read_write_lock-1.i [2022-11-02 20:34:12,398 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:34:12,409 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:34:12,410 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-02 20:34:12,410 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:34:12,485 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-02 20:34:12,519 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-02 20:34:12,534 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 129 places, 118 transitions, 268 flow [2022-11-02 20:34:12,537 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 129 places, 118 transitions, 268 flow [2022-11-02 20:34:12,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 129 places, 118 transitions, 268 flow [2022-11-02 20:34:12,596 INFO L130 PetriNetUnfolder]: 2/114 cut-off events. [2022-11-02 20:34:12,596 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-02 20:34:12,602 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 114 events. 2/114 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 117 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2022-11-02 20:34:12,605 INFO L118 LiptonReduction]: Number of co-enabled transitions 2918 [2022-11-02 20:34:16,711 INFO L133 LiptonReduction]: Checked pairs total: 9819 [2022-11-02 20:34:16,711 INFO L135 LiptonReduction]: Total number of compositions: 83 [2022-11-02 20:34:16,719 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 60 places, 47 transitions, 126 flow [2022-11-02 20:34:16,994 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5350 states, 5326 states have (on average 3.713856552760045) internal successors, (19780), 5349 states have internal predecessors, (19780), 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 20:34:17,013 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:34:17,019 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;@732671a0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:34:17,019 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-11-02 20:34:17,037 INFO L276 IsEmpty]: Start isEmpty. Operand has 5350 states, 5326 states have (on average 3.713856552760045) internal successors, (19780), 5349 states have internal predecessors, (19780), 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 20:34:17,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-02 20:34:17,042 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:34:17,043 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-02 20:34:17,044 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-02 20:34:17,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:34:17,049 INFO L85 PathProgramCache]: Analyzing trace with hash 405721155, now seen corresponding path program 1 times [2022-11-02 20:34:17,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:34:17,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548062634] [2022-11-02 20:34:17,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:34:17,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:34:17,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:17,367 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 20:34:17,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:34:17,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548062634] [2022-11-02 20:34:17,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548062634] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:34:17,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:34:17,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-02 20:34:17,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593649278] [2022-11-02 20:34:17,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:34:17,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:34:17,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:34:17,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:34:17,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:34:17,435 INFO L87 Difference]: Start difference. First operand has 5350 states, 5326 states have (on average 3.713856552760045) internal successors, (19780), 5349 states have internal predecessors, (19780), 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) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 20:34:17,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:34:17,740 INFO L93 Difference]: Finished difference Result 9556 states and 32125 transitions. [2022-11-02 20:34:17,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:34:17,743 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2022-11-02 20:34:17,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:34:17,822 INFO L225 Difference]: With dead ends: 9556 [2022-11-02 20:34:17,822 INFO L226 Difference]: Without dead ends: 9126 [2022-11-02 20:34:17,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 20:34:17,826 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 25 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:34:17,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 22 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:34:17,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9126 states. [2022-11-02 20:34:18,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9126 to 8326. [2022-11-02 20:34:18,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8326 states, 8306 states have (on average 3.522393450517698) internal successors, (29257), 8325 states have internal predecessors, (29257), 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 20:34:18,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8326 states to 8326 states and 29257 transitions. [2022-11-02 20:34:18,404 INFO L78 Accepts]: Start accepts. Automaton has 8326 states and 29257 transitions. Word has length 5 [2022-11-02 20:34:18,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:34:18,405 INFO L495 AbstractCegarLoop]: Abstraction has 8326 states and 29257 transitions. [2022-11-02 20:34:18,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 20:34:18,406 INFO L276 IsEmpty]: Start isEmpty. Operand 8326 states and 29257 transitions. [2022-11-02 20:34:18,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-02 20:34:18,409 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:34:18,409 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:34:18,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:34:18,410 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-02 20:34:18,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:34:18,411 INFO L85 PathProgramCache]: Analyzing trace with hash -929648597, now seen corresponding path program 1 times [2022-11-02 20:34:18,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:34:18,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966954796] [2022-11-02 20:34:18,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:34:18,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:34:18,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:18,590 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 20:34:18,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:34:18,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966954796] [2022-11-02 20:34:18,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966954796] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:34:18,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:34:18,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:34:18,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992980975] [2022-11-02 20:34:18,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:34:18,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:34:18,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:34:18,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:34:18,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:34:18,595 INFO L87 Difference]: Start difference. First operand 8326 states and 29257 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 20:34:18,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:34:18,939 INFO L93 Difference]: Finished difference Result 9506 states and 32470 transitions. [2022-11-02 20:34:18,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:34:18,945 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2022-11-02 20:34:18,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:34:19,040 INFO L225 Difference]: With dead ends: 9506 [2022-11-02 20:34:19,041 INFO L226 Difference]: Without dead ends: 9506 [2022-11-02 20:34:19,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:34:19,044 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 67 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:34:19,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 30 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:34:19,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9506 states. [2022-11-02 20:34:19,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9506 to 8560. [2022-11-02 20:34:19,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8560 states, 8548 states have (on average 3.5443378568086104) internal successors, (30297), 8559 states have internal predecessors, (30297), 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 20:34:19,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8560 states to 8560 states and 30297 transitions. [2022-11-02 20:34:19,753 INFO L78 Accepts]: Start accepts. Automaton has 8560 states and 30297 transitions. Word has length 9 [2022-11-02 20:34:19,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:34:19,753 INFO L495 AbstractCegarLoop]: Abstraction has 8560 states and 30297 transitions. [2022-11-02 20:34:19,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 20:34:19,754 INFO L276 IsEmpty]: Start isEmpty. Operand 8560 states and 30297 transitions. [2022-11-02 20:34:19,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-02 20:34:19,755 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:34:19,755 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:34:19,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:34:19,756 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-02 20:34:19,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:34:19,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1472400029, now seen corresponding path program 1 times [2022-11-02 20:34:19,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:34:19,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464775924] [2022-11-02 20:34:19,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:34:19,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:34:19,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:19,831 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 20:34:19,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:34:19,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464775924] [2022-11-02 20:34:19,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464775924] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:34:19,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:34:19,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:34:19,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530773428] [2022-11-02 20:34:19,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:34:19,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:34:19,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:34:19,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:34:19,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:34:19,834 INFO L87 Difference]: Start difference. First operand 8560 states and 30297 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 20:34:19,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:34:19,984 INFO L93 Difference]: Finished difference Result 3880 states and 11456 transitions. [2022-11-02 20:34:19,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:34:19,985 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2022-11-02 20:34:19,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:34:20,000 INFO L225 Difference]: With dead ends: 3880 [2022-11-02 20:34:20,000 INFO L226 Difference]: Without dead ends: 3328 [2022-11-02 20:34:20,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:34:20,001 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 38 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:34:20,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 26 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:34:20,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3328 states. [2022-11-02 20:34:20,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3328 to 3014. [2022-11-02 20:34:20,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3014 states, 2998 states have (on average 3.162108072048032) internal successors, (9480), 3013 states have internal predecessors, (9480), 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 20:34:20,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3014 states to 3014 states and 9480 transitions. [2022-11-02 20:34:20,165 INFO L78 Accepts]: Start accepts. Automaton has 3014 states and 9480 transitions. Word has length 10 [2022-11-02 20:34:20,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:34:20,166 INFO L495 AbstractCegarLoop]: Abstraction has 3014 states and 9480 transitions. [2022-11-02 20:34:20,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 20:34:20,167 INFO L276 IsEmpty]: Start isEmpty. Operand 3014 states and 9480 transitions. [2022-11-02 20:34:20,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-02 20:34:20,170 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:34:20,170 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:34:20,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:34:20,171 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-02 20:34:20,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:34:20,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1307304437, now seen corresponding path program 1 times [2022-11-02 20:34:20,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:34:20,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49046401] [2022-11-02 20:34:20,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:34:20,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:34:20,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:20,231 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 20:34:20,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:34:20,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49046401] [2022-11-02 20:34:20,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49046401] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:34:20,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:34:20,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:34:20,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351044231] [2022-11-02 20:34:20,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:34:20,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:34:20,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:34:20,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:34:20,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:34:20,235 INFO L87 Difference]: Start difference. First operand 3014 states and 9480 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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 20:34:20,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:34:20,298 INFO L93 Difference]: Finished difference Result 2450 states and 7642 transitions. [2022-11-02 20:34:20,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:34:20,299 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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 14 [2022-11-02 20:34:20,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:34:20,310 INFO L225 Difference]: With dead ends: 2450 [2022-11-02 20:34:20,310 INFO L226 Difference]: Without dead ends: 2450 [2022-11-02 20:34:20,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 20:34:20,312 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 32 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:34:20,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 8 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:34:20,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2450 states. [2022-11-02 20:34:20,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2450 to 2450. [2022-11-02 20:34:20,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2450 states, 2446 states have (on average 3.124284546197874) internal successors, (7642), 2449 states have internal predecessors, (7642), 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 20:34:20,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2450 states to 2450 states and 7642 transitions. [2022-11-02 20:34:20,461 INFO L78 Accepts]: Start accepts. Automaton has 2450 states and 7642 transitions. Word has length 14 [2022-11-02 20:34:20,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:34:20,461 INFO L495 AbstractCegarLoop]: Abstraction has 2450 states and 7642 transitions. [2022-11-02 20:34:20,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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 20:34:20,462 INFO L276 IsEmpty]: Start isEmpty. Operand 2450 states and 7642 transitions. [2022-11-02 20:34:20,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-02 20:34:20,466 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:34:20,466 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:34:20,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:34:20,468 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-02 20:34:20,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:34:20,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1871733533, now seen corresponding path program 1 times [2022-11-02 20:34:20,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:34:20,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107969934] [2022-11-02 20:34:20,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:34:20,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:34:20,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:20,540 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 20:34:20,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:34:20,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107969934] [2022-11-02 20:34:20,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107969934] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:34:20,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:34:20,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:34:20,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101152207] [2022-11-02 20:34:20,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:34:20,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:34:20,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:34:20,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:34:20,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:34:20,544 INFO L87 Difference]: Start difference. First operand 2450 states and 7642 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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 20:34:20,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:34:20,608 INFO L93 Difference]: Finished difference Result 2360 states and 7380 transitions. [2022-11-02 20:34:20,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:34:20,609 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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 15 [2022-11-02 20:34:20,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:34:20,620 INFO L225 Difference]: With dead ends: 2360 [2022-11-02 20:34:20,620 INFO L226 Difference]: Without dead ends: 2360 [2022-11-02 20:34:20,621 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 20:34:20,622 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 30 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:34:20,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 8 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:34:20,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2360 states. [2022-11-02 20:34:20,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2360 to 2360. [2022-11-02 20:34:20,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2360 states, 2358 states have (on average 3.1297709923664123) internal successors, (7380), 2359 states have internal predecessors, (7380), 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 20:34:20,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2360 states to 2360 states and 7380 transitions. [2022-11-02 20:34:20,717 INFO L78 Accepts]: Start accepts. Automaton has 2360 states and 7380 transitions. Word has length 15 [2022-11-02 20:34:20,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:34:20,717 INFO L495 AbstractCegarLoop]: Abstraction has 2360 states and 7380 transitions. [2022-11-02 20:34:20,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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 20:34:20,718 INFO L276 IsEmpty]: Start isEmpty. Operand 2360 states and 7380 transitions. [2022-11-02 20:34:20,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-02 20:34:20,725 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:34:20,725 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:34:20,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:34:20,725 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting readerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-02 20:34:20,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:34:20,726 INFO L85 PathProgramCache]: Analyzing trace with hash -335759468, now seen corresponding path program 1 times [2022-11-02 20:34:20,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:34:20,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956619249] [2022-11-02 20:34:20,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:34:20,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:34:20,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:20,864 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 20:34:20,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:34:20,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956619249] [2022-11-02 20:34:20,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956619249] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:34:20,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:34:20,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:34:20,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870248050] [2022-11-02 20:34:20,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:34:20,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:34:20,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:34:20,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:34:20,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:34:20,868 INFO L87 Difference]: Start difference. First operand 2360 states and 7380 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:21,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:34:21,021 INFO L93 Difference]: Finished difference Result 2896 states and 8572 transitions. [2022-11-02 20:34:21,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:34:21,021 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-02 20:34:21,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:34:21,027 INFO L225 Difference]: With dead ends: 2896 [2022-11-02 20:34:21,028 INFO L226 Difference]: Without dead ends: 1446 [2022-11-02 20:34:21,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:34:21,029 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 43 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:34:21,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 50 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:34:21,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1446 states. [2022-11-02 20:34:21,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1446 to 1360. [2022-11-02 20:34:21,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1360 states, 1358 states have (on average 2.56259204712813) internal successors, (3480), 1359 states have internal predecessors, (3480), 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 20:34:21,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1360 states to 1360 states and 3480 transitions. [2022-11-02 20:34:21,077 INFO L78 Accepts]: Start accepts. Automaton has 1360 states and 3480 transitions. Word has length 20 [2022-11-02 20:34:21,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:34:21,078 INFO L495 AbstractCegarLoop]: Abstraction has 1360 states and 3480 transitions. [2022-11-02 20:34:21,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:21,078 INFO L276 IsEmpty]: Start isEmpty. Operand 1360 states and 3480 transitions. [2022-11-02 20:34:21,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-02 20:34:21,082 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:34:21,082 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:34:21,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:34:21,083 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting readerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-02 20:34:21,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:34:21,083 INFO L85 PathProgramCache]: Analyzing trace with hash -44784930, now seen corresponding path program 1 times [2022-11-02 20:34:21,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:34:21,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258003483] [2022-11-02 20:34:21,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:34:21,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:34:21,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:21,187 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 20:34:21,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:34:21,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258003483] [2022-11-02 20:34:21,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258003483] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:34:21,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:34:21,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:34:21,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241106327] [2022-11-02 20:34:21,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:34:21,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:34:21,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:34:21,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:34:21,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:34:21,190 INFO L87 Difference]: Start difference. First operand 1360 states and 3480 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:21,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:34:21,274 INFO L93 Difference]: Finished difference Result 1270 states and 3218 transitions. [2022-11-02 20:34:21,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:34:21,274 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-02 20:34:21,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:34:21,275 INFO L225 Difference]: With dead ends: 1270 [2022-11-02 20:34:21,275 INFO L226 Difference]: Without dead ends: 0 [2022-11-02 20:34:21,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:34:21,276 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 63 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:34:21,277 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 20 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:34:21,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-02 20:34:21,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-02 20:34:21,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 20:34:21,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-02 20:34:21,278 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2022-11-02 20:34:21,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:34:21,279 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-02 20:34:21,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:21,279 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-02 20:34:21,280 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-02 20:34:21,282 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2022-11-02 20:34:21,283 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2022-11-02 20:34:21,283 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2022-11-02 20:34:21,283 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2022-11-02 20:34:21,284 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 16 remaining) [2022-11-02 20:34:21,284 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 16 remaining) [2022-11-02 20:34:21,284 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 16 remaining) [2022-11-02 20:34:21,285 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 16 remaining) [2022-11-02 20:34:21,285 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 16 remaining) [2022-11-02 20:34:21,285 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 16 remaining) [2022-11-02 20:34:21,285 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 16 remaining) [2022-11-02 20:34:21,286 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 16 remaining) [2022-11-02 20:34:21,286 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2022-11-02 20:34:21,286 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2022-11-02 20:34:21,287 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2022-11-02 20:34:21,287 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2022-11-02 20:34:21,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 20:34:21,290 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:34:21,295 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-02 20:34:21,295 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 20:34:21,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:34:21 BasicIcfg [2022-11-02 20:34:21,298 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 20:34:21,299 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 20:34:21,299 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 20:34:21,300 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 20:34:21,300 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:34:12" (3/4) ... [2022-11-02 20:34:21,303 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-02 20:34:21,308 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure reader [2022-11-02 20:34:21,309 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure writer [2022-11-02 20:34:21,313 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2022-11-02 20:34:21,313 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-02 20:34:21,313 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-02 20:34:21,314 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-02 20:34:21,344 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dece1f99-d1c5-4bb1-9d75-b8861d464430/bin/uautomizer-Dbtcem3rbc/witness.graphml [2022-11-02 20:34:21,344 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 20:34:21,345 INFO L158 Benchmark]: Toolchain (without parser) took 10278.29ms. Allocated memory was 92.3MB in the beginning and 629.1MB in the end (delta: 536.9MB). Free memory was 55.5MB in the beginning and 324.4MB in the end (delta: -268.8MB). Peak memory consumption was 267.4MB. Max. memory is 16.1GB. [2022-11-02 20:34:21,346 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 92.3MB. Free memory is still 73.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:34:21,346 INFO L158 Benchmark]: CACSL2BoogieTranslator took 549.60ms. Allocated memory is still 92.3MB. Free memory was 55.4MB in the beginning and 58.6MB in the end (delta: -3.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-02 20:34:21,346 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.91ms. Allocated memory is still 92.3MB. Free memory was 58.3MB in the beginning and 56.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:34:21,347 INFO L158 Benchmark]: Boogie Preprocessor took 51.61ms. Allocated memory is still 92.3MB. Free memory was 56.2MB in the beginning and 54.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:34:21,347 INFO L158 Benchmark]: RCFGBuilder took 626.51ms. Allocated memory was 92.3MB in the beginning and 113.2MB in the end (delta: 21.0MB). Free memory was 54.8MB in the beginning and 88.2MB in the end (delta: -33.4MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. [2022-11-02 20:34:21,347 INFO L158 Benchmark]: TraceAbstraction took 8915.66ms. Allocated memory was 113.2MB in the beginning and 629.1MB in the end (delta: 515.9MB). Free memory was 87.4MB in the beginning and 326.4MB in the end (delta: -239.1MB). Peak memory consumption was 275.3MB. Max. memory is 16.1GB. [2022-11-02 20:34:21,348 INFO L158 Benchmark]: Witness Printer took 45.52ms. Allocated memory is still 629.1MB. Free memory was 326.4MB in the beginning and 324.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:34:21,350 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 92.3MB. Free memory is still 73.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 549.60ms. Allocated memory is still 92.3MB. Free memory was 55.4MB in the beginning and 58.6MB in the end (delta: -3.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.91ms. Allocated memory is still 92.3MB. Free memory was 58.3MB in the beginning and 56.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.61ms. Allocated memory is still 92.3MB. Free memory was 56.2MB in the beginning and 54.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 626.51ms. Allocated memory was 92.3MB in the beginning and 113.2MB in the end (delta: 21.0MB). Free memory was 54.8MB in the beginning and 88.2MB in the end (delta: -33.4MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. * TraceAbstraction took 8915.66ms. Allocated memory was 113.2MB in the beginning and 629.1MB in the end (delta: 515.9MB). Free memory was 87.4MB in the beginning and 326.4MB in the end (delta: -239.1MB). Peak memory consumption was 275.3MB. Max. memory is 16.1GB. * Witness Printer took 45.52ms. Allocated memory is still 629.1MB. Free memory was 326.4MB in the beginning and 324.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.2s, 129 PlacesBefore, 60 PlacesAfterwards, 118 TransitionsBefore, 47 TransitionsAfterwards, 2918 CoEnabledTransitionPairs, 6 FixpointIterations, 34 TrivialSequentialCompositions, 47 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 2 ChoiceCompositions, 83 TotalNumberOfCompositions, 9819 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4982, positive: 4738, positive conditional: 0, positive unconditional: 4738, negative: 244, negative conditional: 0, negative unconditional: 244, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1937, positive: 1887, positive conditional: 0, positive unconditional: 1887, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1937, positive: 1869, positive conditional: 0, positive unconditional: 1869, negative: 68, negative conditional: 0, negative unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 68, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 162, positive: 45, positive conditional: 0, positive unconditional: 45, negative: 118, negative conditional: 0, negative unconditional: 118, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4982, positive: 2851, positive conditional: 0, positive unconditional: 2851, negative: 194, negative conditional: 0, negative unconditional: 194, unknown: 1937, unknown conditional: 0, unknown unconditional: 1937] , Statistics on independence cache: Total cache size (in pairs): 420, Positive cache size: 390, Positive conditional cache size: 0, Positive unconditional cache size: 390, Negative cache size: 30, Negative conditional cache size: 0, Negative unconditional cache size: 30 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 711]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 711]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 714]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 714]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 145 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 8.8s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 298 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 298 mSDsluCounter, 164 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 262 mSDsCounter, 61 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 544 IncrementalHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 61 mSolverCounterUnsat, 82 mSDtfsCounter, 544 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8560occurred in iteration=2, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.7s AutomataMinimizationTime, 7 MinimizatonAttempts, 2146 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 93 NumberOfCodeBlocks, 93 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 86 ConstructedInterpolants, 0 QuantifiedInterpolants, 210 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-02 20:34:21,397 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dece1f99-d1c5-4bb1-9d75-b8861d464430/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE