./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy2-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b 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_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy2-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro --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 64bit --witnessprinter.graph.data.programhash d7a26ac99d24cf78f342a00198534968a8c9a8e19670213e333d305f9460bd44 --- 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-8393723 [2022-11-18 20:10:47,682 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:10:47,684 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:10:47,722 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:10:47,723 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:10:47,724 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:10:47,726 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:10:47,737 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:10:47,743 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:10:47,750 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:10:47,752 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:10:47,753 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:10:47,753 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:10:47,755 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:10:47,756 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:10:47,758 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:10:47,759 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:10:47,760 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:10:47,762 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:10:47,776 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:10:47,780 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:10:47,783 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:10:47,789 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:10:47,790 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:10:47,802 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:10:47,802 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:10:47,802 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:10:47,805 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:10:47,805 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:10:47,807 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:10:47,807 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:10:47,809 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:10:47,811 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:10:47,813 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:10:47,815 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:10:47,816 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:10:47,817 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:10:47,817 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:10:47,817 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:10:47,818 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:10:47,819 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:10:47,821 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-18 20:10:47,875 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:10:47,876 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:10:47,877 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:10:47,877 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:10:47,878 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:10:47,878 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:10:47,879 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:10:47,880 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:10:47,880 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:10:47,880 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:10:47,881 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:10:47,882 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:10:47,882 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:10:47,882 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:10:47,883 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:10:47,883 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:10:47,883 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 20:10:47,883 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:10:47,883 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:10:47,884 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:10:47,884 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:10:47,884 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:10:47,884 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:10:47,885 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:10:47,885 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:10:47,885 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:10:47,887 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:10:47,888 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:10:47,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:10:47,888 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:10:47,888 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:10:47,889 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:10:47,889 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_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d7a26ac99d24cf78f342a00198534968a8c9a8e19670213e333d305f9460bd44 [2022-11-18 20:10:48,283 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:10:48,310 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:10:48,313 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:10:48,315 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:10:48,316 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:10:48,318 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy2-1.c [2022-11-18 20:10:48,409 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/data/eef73294d/583749ae703e43098e158f87c4149460/FLAG8c743ffa8 [2022-11-18 20:10:49,042 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:10:49,043 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy2-1.c [2022-11-18 20:10:49,053 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/data/eef73294d/583749ae703e43098e158f87c4149460/FLAG8c743ffa8 [2022-11-18 20:10:49,426 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/data/eef73294d/583749ae703e43098e158f87c4149460 [2022-11-18 20:10:49,432 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:10:49,436 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:10:49,440 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:10:49,440 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:10:49,445 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:10:49,446 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:10:49" (1/1) ... [2022-11-18 20:10:49,449 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@354e7355 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:10:49, skipping insertion in model container [2022-11-18 20:10:49,449 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:10:49" (1/1) ... [2022-11-18 20:10:49,460 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:10:49,478 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:10:49,793 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:10:49,799 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:10:49,827 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:10:49,842 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:10:49,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:10:49 WrapperNode [2022-11-18 20:10:49,844 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:10:49,848 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:10:49,848 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:10:49,849 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:10:49,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:10:49" (1/1) ... [2022-11-18 20:10:49,870 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:10:49" (1/1) ... [2022-11-18 20:10:49,894 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2022-11-18 20:10:49,894 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:10:49,896 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:10:49,896 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:10:49,897 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:10:49,906 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:10:49" (1/1) ... [2022-11-18 20:10:49,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:10:49" (1/1) ... [2022-11-18 20:10:49,907 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:10:49" (1/1) ... [2022-11-18 20:10:49,908 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:10:49" (1/1) ... [2022-11-18 20:10:49,910 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:10:49" (1/1) ... [2022-11-18 20:10:49,913 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:10:49" (1/1) ... [2022-11-18 20:10:49,914 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:10:49" (1/1) ... [2022-11-18 20:10:49,915 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:10:49" (1/1) ... [2022-11-18 20:10:49,916 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:10:49,917 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:10:49,918 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:10:49,918 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:10:49,923 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:10:49" (1/1) ... [2022-11-18 20:10:49,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:10:49,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:10:49,969 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:10:49,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:10:50,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:10:50,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:10:50,097 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:10:50,099 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:10:50,287 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:10:50,297 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:10:50,297 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 20:10:50,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:10:50 BoogieIcfgContainer [2022-11-18 20:10:50,300 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:10:50,303 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:10:50,303 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:10:50,309 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:10:50,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:10:49" (1/3) ... [2022-11-18 20:10:50,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c8d4698 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:10:50, skipping insertion in model container [2022-11-18 20:10:50,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:10:49" (2/3) ... [2022-11-18 20:10:50,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c8d4698 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:10:50, skipping insertion in model container [2022-11-18 20:10:50,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:10:50" (3/3) ... [2022-11-18 20:10:50,314 INFO L112 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-easy2-1.c [2022-11-18 20:10:50,337 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:10:50,338 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-18 20:10:50,429 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:10:50,446 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5930e451, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:10:50,446 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-18 20:10:50,451 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 18 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) [2022-11-18 20:10:50,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-18 20:10:50,460 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:10:50,461 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-18 20:10:50,462 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:10:50,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:10:50,471 INFO L85 PathProgramCache]: Analyzing trace with hash 925796, now seen corresponding path program 1 times [2022-11-18 20:10:50,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:10:50,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691424757] [2022-11-18 20:10:50,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:50,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:10:50,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:10:50,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:10:50,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:10:50,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691424757] [2022-11-18 20:10:50,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691424757] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:10:50,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:10:50,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:10:50,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016510741] [2022-11-18 20:10:50,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:10:50,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:10:50,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:10:50,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:10:50,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:10:50,801 INFO L87 Difference]: Start difference. First operand has 19 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 18 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) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:50,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:10:50,870 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2022-11-18 20:10:50,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:10:50,874 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-18 20:10:50,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:10:50,884 INFO L225 Difference]: With dead ends: 31 [2022-11-18 20:10:50,891 INFO L226 Difference]: Without dead ends: 18 [2022-11-18 20:10:50,895 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 [2022-11-18 20:10:50,899 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 6 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:10:50,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 30 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:10:50,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-11-18 20:10:50,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2022-11-18 20:10:50,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 16 states have internal predecessors, (17), 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) [2022-11-18 20:10:50,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2022-11-18 20:10:50,943 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 4 [2022-11-18 20:10:50,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:10:50,943 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2022-11-18 20:10:50,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:50,944 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2022-11-18 20:10:50,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-18 20:10:50,945 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:10:50,945 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-18 20:10:50,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:10:50,946 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:10:50,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:10:50,947 INFO L85 PathProgramCache]: Analyzing trace with hash 28699721, now seen corresponding path program 1 times [2022-11-18 20:10:50,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:10:50,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422308902] [2022-11-18 20:10:50,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:50,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:10:50,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:10:50,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:10:50,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:10:50,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422308902] [2022-11-18 20:10:50,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422308902] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:10:50,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:10:50,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:10:50,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719535164] [2022-11-18 20:10:50,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:10:50,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:10:50,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:10:50,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:10:50,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:10:50,990 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2022-11-18 20:10:51,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:10:51,002 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2022-11-18 20:10:51,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:10:51,003 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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 [2022-11-18 20:10:51,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:10:51,004 INFO L225 Difference]: With dead ends: 17 [2022-11-18 20:10:51,004 INFO L226 Difference]: Without dead ends: 16 [2022-11-18 20:10:51,005 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 [2022-11-18 20:10:51,007 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 9 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:10:51,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 12 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:10:51,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-11-18 20:10:51,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-11-18 20:10:51,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 15 states have internal predecessors, (16), 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) [2022-11-18 20:10:51,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2022-11-18 20:10:51,013 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 5 [2022-11-18 20:10:51,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:10:51,014 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2022-11-18 20:10:51,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2022-11-18 20:10:51,015 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2022-11-18 20:10:51,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-18 20:10:51,015 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:10:51,016 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-18 20:10:51,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:10:51,017 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:10:51,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:10:51,018 INFO L85 PathProgramCache]: Analyzing trace with hash 889691398, now seen corresponding path program 1 times [2022-11-18 20:10:51,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:10:51,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196024910] [2022-11-18 20:10:51,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:51,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:10:51,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:10:51,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:10:51,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:10:51,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196024910] [2022-11-18 20:10:51,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196024910] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:10:51,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:10:51,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:10:51,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304454361] [2022-11-18 20:10:51,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:10:51,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:10:51,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:10:51,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:10:51,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:10:51,095 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-11-18 20:10:51,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:10:51,119 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-18 20:10:51,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:10:51,122 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2022-11-18 20:10:51,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:10:51,123 INFO L225 Difference]: With dead ends: 16 [2022-11-18 20:10:51,123 INFO L226 Difference]: Without dead ends: 15 [2022-11-18 20:10:51,124 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 [2022-11-18 20:10:51,125 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 7 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:10:51,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 11 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:10:51,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-18 20:10:51,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-11-18 20:10:51,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 14 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) [2022-11-18 20:10:51,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-18 20:10:51,131 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 6 [2022-11-18 20:10:51,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:10:51,132 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-18 20:10:51,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-11-18 20:10:51,132 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-18 20:10:51,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-18 20:10:51,133 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:10:51,133 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:10:51,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:10:51,134 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:10:51,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:10:51,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1810629611, now seen corresponding path program 1 times [2022-11-18 20:10:51,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:10:51,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101459591] [2022-11-18 20:10:51,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:51,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:10:51,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:10:51,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:10:51,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:10:51,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101459591] [2022-11-18 20:10:51,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101459591] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:10:51,222 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:10:51,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:10:51,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036429194] [2022-11-18 20:10:51,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:10:51,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:10:51,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:10:51,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:10:51,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:10:51,243 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:51,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:10:51,257 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-11-18 20:10:51,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:10:51,258 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-18 20:10:51,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:10:51,259 INFO L225 Difference]: With dead ends: 19 [2022-11-18 20:10:51,260 INFO L226 Difference]: Without dead ends: 18 [2022-11-18 20:10:51,260 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 [2022-11-18 20:10:51,262 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:10:51,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:10:51,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-11-18 20:10:51,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-11-18 20:10:51,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 17 states have internal predecessors, (18), 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) [2022-11-18 20:10:51,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2022-11-18 20:10:51,269 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 7 [2022-11-18 20:10:51,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:10:51,270 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2022-11-18 20:10:51,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:51,271 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2022-11-18 20:10:51,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-18 20:10:51,271 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:10:51,272 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:10:51,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:10:51,272 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:10:51,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:10:51,273 INFO L85 PathProgramCache]: Analyzing trace with hash 294943144, now seen corresponding path program 1 times [2022-11-18 20:10:51,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:10:51,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535448170] [2022-11-18 20:10:51,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:51,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:10:51,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:10:51,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:10:51,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:10:51,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535448170] [2022-11-18 20:10:51,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535448170] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:10:51,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:10:51,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:10:51,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938090460] [2022-11-18 20:10:51,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:10:51,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:10:51,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:10:51,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:10:51,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:10:51,320 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-11-18 20:10:51,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:10:51,333 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2022-11-18 20:10:51,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:10:51,334 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2022-11-18 20:10:51,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:10:51,335 INFO L225 Difference]: With dead ends: 18 [2022-11-18 20:10:51,335 INFO L226 Difference]: Without dead ends: 17 [2022-11-18 20:10:51,335 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 [2022-11-18 20:10:51,337 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 4 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:10:51,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 9 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:10:51,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-18 20:10:51,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-11-18 20:10:51,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 16 states have internal predecessors, (17), 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) [2022-11-18 20:10:51,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2022-11-18 20:10:51,344 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 8 [2022-11-18 20:10:51,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:10:51,344 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2022-11-18 20:10:51,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-11-18 20:10:51,345 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2022-11-18 20:10:51,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-18 20:10:51,346 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:10:51,346 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:10:51,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:10:51,347 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:10:51,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:10:51,348 INFO L85 PathProgramCache]: Analyzing trace with hash 553302925, now seen corresponding path program 1 times [2022-11-18 20:10:51,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:10:51,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132975011] [2022-11-18 20:10:51,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:51,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:10:51,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:10:51,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:10:51,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:10:51,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132975011] [2022-11-18 20:10:51,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132975011] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:10:51,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:10:51,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:10:51,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965542624] [2022-11-18 20:10:51,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:10:51,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:10:51,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:10:51,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:10:51,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:10:51,393 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 3 states, 2 states have (on average 4.5) 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) [2022-11-18 20:10:51,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:10:51,403 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2022-11-18 20:10:51,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:10:51,404 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) 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 [2022-11-18 20:10:51,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:10:51,405 INFO L225 Difference]: With dead ends: 17 [2022-11-18 20:10:51,405 INFO L226 Difference]: Without dead ends: 16 [2022-11-18 20:10:51,405 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 [2022-11-18 20:10:51,407 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 2 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:10:51,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 10 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:10:51,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-11-18 20:10:51,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-11-18 20:10:51,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 15 states have internal predecessors, (16), 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) [2022-11-18 20:10:51,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2022-11-18 20:10:51,412 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 9 [2022-11-18 20:10:51,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:10:51,413 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2022-11-18 20:10:51,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) 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) [2022-11-18 20:10:51,413 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2022-11-18 20:10:51,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-18 20:10:51,414 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:10:51,414 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:10:51,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:10:51,415 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:10:51,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:10:51,415 INFO L85 PathProgramCache]: Analyzing trace with hash -851832465, now seen corresponding path program 1 times [2022-11-18 20:10:51,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:10:51,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991725935] [2022-11-18 20:10:51,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:51,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:10:51,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:10:51,499 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:10:51,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:10:51,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991725935] [2022-11-18 20:10:51,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991725935] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:10:51,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1075084195] [2022-11-18 20:10:51,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:51,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:10:51,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:10:51,505 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:10:51,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:10:51,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:10:51,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 20:10:51,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:10:51,649 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:10:51,649 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:10:51,695 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:10:51,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1075084195] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:10:51,695 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:10:51,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-11-18 20:10:51,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435339190] [2022-11-18 20:10:51,696 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:10:51,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:10:51,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:10:51,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:10:51,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:10:51,698 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 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) [2022-11-18 20:10:51,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:10:51,741 INFO L93 Difference]: Finished difference Result 37 states and 39 transitions. [2022-11-18 20:10:51,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:10:51,742 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 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 11 [2022-11-18 20:10:51,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:10:51,743 INFO L225 Difference]: With dead ends: 37 [2022-11-18 20:10:51,743 INFO L226 Difference]: Without dead ends: 36 [2022-11-18 20:10:51,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:10:51,745 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 16 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:10:51,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 36 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:10:51,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-11-18 20:10:51,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2022-11-18 20:10:51,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 32 states have (on average 1.125) internal successors, (36), 33 states have internal predecessors, (36), 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) [2022-11-18 20:10:51,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2022-11-18 20:10:51,754 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 11 [2022-11-18 20:10:51,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:10:51,754 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2022-11-18 20:10:51,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 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) [2022-11-18 20:10:51,755 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2022-11-18 20:10:51,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-18 20:10:51,756 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:10:51,756 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-18 20:10:51,769 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 20:10:51,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:10:51,964 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:10:51,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:10:51,965 INFO L85 PathProgramCache]: Analyzing trace with hash 2020832000, now seen corresponding path program 1 times [2022-11-18 20:10:51,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:10:51,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740058929] [2022-11-18 20:10:51,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:51,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:10:51,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:10:52,075 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:10:52,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:10:52,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740058929] [2022-11-18 20:10:52,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740058929] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:10:52,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [445818610] [2022-11-18 20:10:52,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:52,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:10:52,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:10:52,078 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:10:52,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 20:10:52,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:10:52,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 20:10:52,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:10:52,187 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:10:52,187 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:10:52,239 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:10:52,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [445818610] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:10:52,240 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:10:52,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-11-18 20:10:52,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004891807] [2022-11-18 20:10:52,240 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:10:52,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:10:52,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:10:52,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:10:52,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:10:52,242 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 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) [2022-11-18 20:10:52,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:10:52,277 INFO L93 Difference]: Finished difference Result 38 states and 40 transitions. [2022-11-18 20:10:52,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:10:52,278 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 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 [2022-11-18 20:10:52,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:10:52,279 INFO L225 Difference]: With dead ends: 38 [2022-11-18 20:10:52,279 INFO L226 Difference]: Without dead ends: 37 [2022-11-18 20:10:52,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:10:52,281 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 4 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:10:52,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 33 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:10:52,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-11-18 20:10:52,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2022-11-18 20:10:52,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 35 states have (on average 1.0571428571428572) internal successors, (37), 36 states have internal predecessors, (37), 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) [2022-11-18 20:10:52,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 37 transitions. [2022-11-18 20:10:52,290 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 37 transitions. Word has length 14 [2022-11-18 20:10:52,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:10:52,290 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 37 transitions. [2022-11-18 20:10:52,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 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) [2022-11-18 20:10:52,291 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2022-11-18 20:10:52,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-18 20:10:52,292 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:10:52,292 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 1, 1, 1] [2022-11-18 20:10:52,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:10:52,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:10:52,500 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:10:52,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:10:52,501 INFO L85 PathProgramCache]: Analyzing trace with hash 85812132, now seen corresponding path program 2 times [2022-11-18 20:10:52,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:10:52,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813291113] [2022-11-18 20:10:52,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:52,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:10:52,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:10:52,740 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:10:52,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:10:52,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813291113] [2022-11-18 20:10:52,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813291113] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:10:52,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [845619027] [2022-11-18 20:10:52,742 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:10:52,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:10:52,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:10:52,744 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:10:52,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 20:10:52,828 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:10:52,829 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:10:52,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 20:10:52,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:10:52,952 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:10:52,952 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:10:53,128 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:10:53,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [845619027] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:10:53,128 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:10:53,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-11-18 20:10:53,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797344271] [2022-11-18 20:10:53,129 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:10:53,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 20:10:53,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:10:53,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 20:10:53,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-18 20:10:53,131 INFO L87 Difference]: Start difference. First operand 37 states and 37 transitions. Second operand has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 12 states have internal predecessors, (63), 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) [2022-11-18 20:10:53,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:10:53,196 INFO L93 Difference]: Finished difference Result 82 states and 87 transitions. [2022-11-18 20:10:53,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 20:10:53,197 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 12 states have internal predecessors, (63), 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 32 [2022-11-18 20:10:53,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:10:53,198 INFO L225 Difference]: With dead ends: 82 [2022-11-18 20:10:53,199 INFO L226 Difference]: Without dead ends: 81 [2022-11-18 20:10:53,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-18 20:10:53,200 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 36 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:10:53,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 70 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:10:53,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2022-11-18 20:10:53,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 76. [2022-11-18 20:10:53,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 74 states have (on average 1.0945945945945945) internal successors, (81), 75 states have internal predecessors, (81), 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) [2022-11-18 20:10:53,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 81 transitions. [2022-11-18 20:10:53,231 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 81 transitions. Word has length 32 [2022-11-18 20:10:53,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:10:53,232 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 81 transitions. [2022-11-18 20:10:53,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 12 states have internal predecessors, (63), 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) [2022-11-18 20:10:53,232 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 81 transitions. [2022-11-18 20:10:53,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-18 20:10:53,233 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:10:53,234 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 1, 1, 1] [2022-11-18 20:10:53,260 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-18 20:10:53,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-18 20:10:53,435 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:10:53,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:10:53,436 INFO L85 PathProgramCache]: Analyzing trace with hash 923728043, now seen corresponding path program 2 times [2022-11-18 20:10:53,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:10:53,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504172817] [2022-11-18 20:10:53,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:53,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:10:53,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:10:53,632 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:10:53,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:10:53,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504172817] [2022-11-18 20:10:53,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504172817] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:10:53,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1752609562] [2022-11-18 20:10:53,634 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:10:53,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:10:53,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:10:53,636 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:10:53,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 20:10:53,686 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:10:53,686 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:10:53,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 20:10:53,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:10:53,792 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:10:53,792 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:10:53,964 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:10:53,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1752609562] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:10:53,968 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:10:53,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-11-18 20:10:53,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478760998] [2022-11-18 20:10:53,969 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:10:53,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 20:10:53,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:10:53,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 20:10:53,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-18 20:10:53,976 INFO L87 Difference]: Start difference. First operand 76 states and 81 transitions. Second operand has 12 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 12 states have internal predecessors, (69), 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) [2022-11-18 20:10:54,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:10:54,076 INFO L93 Difference]: Finished difference Result 80 states and 85 transitions. [2022-11-18 20:10:54,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 20:10:54,083 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 12 states have internal predecessors, (69), 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 35 [2022-11-18 20:10:54,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:10:54,085 INFO L225 Difference]: With dead ends: 80 [2022-11-18 20:10:54,088 INFO L226 Difference]: Without dead ends: 79 [2022-11-18 20:10:54,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-18 20:10:54,090 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 10 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:10:54,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 67 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:10:54,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-11-18 20:10:54,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2022-11-18 20:10:54,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 77 states have (on average 1.025974025974026) internal successors, (79), 78 states have internal predecessors, (79), 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) [2022-11-18 20:10:54,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 79 transitions. [2022-11-18 20:10:54,108 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 79 transitions. Word has length 35 [2022-11-18 20:10:54,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:10:54,109 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 79 transitions. [2022-11-18 20:10:54,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 12 states have internal predecessors, (69), 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) [2022-11-18 20:10:54,109 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 79 transitions. [2022-11-18 20:10:54,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-18 20:10:54,111 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:10:54,112 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 1, 1, 1] [2022-11-18 20:10:54,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 20:10:54,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-18 20:10:54,319 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:10:54,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:10:54,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1891218564, now seen corresponding path program 3 times [2022-11-18 20:10:54,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:10:54,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143459352] [2022-11-18 20:10:54,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:54,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:10:54,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:10:54,856 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 335 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:10:54,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:10:54,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143459352] [2022-11-18 20:10:54,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143459352] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:10:54,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1558567594] [2022-11-18 20:10:54,857 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 20:10:54,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:10:54,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:10:54,863 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:10:54,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 20:10:54,958 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-11-18 20:10:54,958 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:10:54,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-18 20:10:54,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:10:55,193 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 335 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:10:55,194 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:10:55,607 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 335 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:10:55,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1558567594] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:10:55,608 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:10:55,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2022-11-18 20:10:55,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684668957] [2022-11-18 20:10:55,612 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:10:55,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-18 20:10:55,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:10:55,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-18 20:10:55,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-11-18 20:10:55,619 INFO L87 Difference]: Start difference. First operand 79 states and 79 transitions. Second operand has 24 states, 23 states have (on average 6.391304347826087) internal successors, (147), 24 states have internal predecessors, (147), 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) [2022-11-18 20:10:55,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:10:55,785 INFO L93 Difference]: Finished difference Result 172 states and 183 transitions. [2022-11-18 20:10:55,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-18 20:10:55,786 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 6.391304347826087) internal successors, (147), 24 states have internal predecessors, (147), 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 74 [2022-11-18 20:10:55,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:10:55,795 INFO L225 Difference]: With dead ends: 172 [2022-11-18 20:10:55,795 INFO L226 Difference]: Without dead ends: 171 [2022-11-18 20:10:55,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-11-18 20:10:55,800 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 95 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:10:55,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 139 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:10:55,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2022-11-18 20:10:55,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 160. [2022-11-18 20:10:55,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 158 states have (on average 1.0822784810126582) internal successors, (171), 159 states have internal predecessors, (171), 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) [2022-11-18 20:10:55,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 171 transitions. [2022-11-18 20:10:55,841 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 171 transitions. Word has length 74 [2022-11-18 20:10:55,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:10:55,845 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 171 transitions. [2022-11-18 20:10:55,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 6.391304347826087) internal successors, (147), 24 states have internal predecessors, (147), 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) [2022-11-18 20:10:55,846 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 171 transitions. [2022-11-18 20:10:55,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-18 20:10:55,852 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:10:55,853 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 10, 1, 1, 1] [2022-11-18 20:10:55,885 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-18 20:10:56,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-18 20:10:56,086 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:10:56,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:10:56,086 INFO L85 PathProgramCache]: Analyzing trace with hash -88704053, now seen corresponding path program 3 times [2022-11-18 20:10:56,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:10:56,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275845465] [2022-11-18 20:10:56,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:56,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:10:56,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:10:56,383 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 0 proven. 365 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:10:56,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:10:56,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275845465] [2022-11-18 20:10:56,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275845465] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:10:56,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1890459549] [2022-11-18 20:10:56,385 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 20:10:56,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:10:56,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:10:56,387 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:10:56,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-18 20:10:56,481 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-11-18 20:10:56,481 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:10:56,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-18 20:10:56,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:10:56,645 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 0 proven. 365 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:10:56,645 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:10:57,037 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 0 proven. 365 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:10:57,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1890459549] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:10:57,038 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:10:57,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2022-11-18 20:10:57,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682228044] [2022-11-18 20:10:57,039 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:10:57,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-18 20:10:57,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:10:57,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-18 20:10:57,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-11-18 20:10:57,042 INFO L87 Difference]: Start difference. First operand 160 states and 171 transitions. Second operand has 24 states, 23 states have (on average 6.6521739130434785) internal successors, (153), 24 states have internal predecessors, (153), 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) [2022-11-18 20:10:57,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:10:57,195 INFO L93 Difference]: Finished difference Result 164 states and 175 transitions. [2022-11-18 20:10:57,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-18 20:10:57,195 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 6.6521739130434785) internal successors, (153), 24 states have internal predecessors, (153), 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 77 [2022-11-18 20:10:57,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:10:57,198 INFO L225 Difference]: With dead ends: 164 [2022-11-18 20:10:57,198 INFO L226 Difference]: Without dead ends: 163 [2022-11-18 20:10:57,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-11-18 20:10:57,200 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 22 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:10:57,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 127 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:10:57,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2022-11-18 20:10:57,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2022-11-18 20:10:57,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 161 states have (on average 1.0124223602484472) internal successors, (163), 162 states have internal predecessors, (163), 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) [2022-11-18 20:10:57,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 163 transitions. [2022-11-18 20:10:57,239 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 163 transitions. Word has length 77 [2022-11-18 20:10:57,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:10:57,241 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 163 transitions. [2022-11-18 20:10:57,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 6.6521739130434785) internal successors, (153), 24 states have internal predecessors, (153), 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) [2022-11-18 20:10:57,242 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 163 transitions. [2022-11-18 20:10:57,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-11-18 20:10:57,244 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:10:57,244 INFO L195 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 1, 1, 1] [2022-11-18 20:10:57,258 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-18 20:10:57,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-18 20:10:57,458 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:10:57,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:10:57,459 INFO L85 PathProgramCache]: Analyzing trace with hash 468127300, now seen corresponding path program 4 times [2022-11-18 20:10:57,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:10:57,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782865086] [2022-11-18 20:10:57,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:57,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:10:57,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:10:58,555 INFO L134 CoverageAnalysis]: Checked inductivity of 1661 backedges. 0 proven. 1661 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:10:58,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:10:58,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782865086] [2022-11-18 20:10:58,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782865086] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:10:58,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [697463381] [2022-11-18 20:10:58,556 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 20:10:58,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:10:58,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:10:58,559 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:10:58,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-18 20:10:58,685 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 20:10:58,685 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:10:58,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-18 20:10:58,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:10:59,022 INFO L134 CoverageAnalysis]: Checked inductivity of 1661 backedges. 0 proven. 1661 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:10:59,022 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:11:00,337 INFO L134 CoverageAnalysis]: Checked inductivity of 1661 backedges. 0 proven. 1661 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:00,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [697463381] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:11:00,337 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:11:00,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2022-11-18 20:11:00,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295322421] [2022-11-18 20:11:00,338 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:11:00,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-11-18 20:11:00,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:11:00,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-11-18 20:11:00,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-11-18 20:11:00,342 INFO L87 Difference]: Start difference. First operand 163 states and 163 transitions. Second operand has 48 states, 47 states have (on average 6.702127659574468) internal successors, (315), 48 states have internal predecessors, (315), 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) [2022-11-18 20:11:00,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:11:00,612 INFO L93 Difference]: Finished difference Result 352 states and 375 transitions. [2022-11-18 20:11:00,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-18 20:11:00,614 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 6.702127659574468) internal successors, (315), 48 states have internal predecessors, (315), 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 158 [2022-11-18 20:11:00,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:11:00,616 INFO L225 Difference]: With dead ends: 352 [2022-11-18 20:11:00,616 INFO L226 Difference]: Without dead ends: 351 [2022-11-18 20:11:00,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-11-18 20:11:00,622 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 188 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:11:00,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 271 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:11:00,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2022-11-18 20:11:00,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 328. [2022-11-18 20:11:00,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 326 states have (on average 1.0766871165644172) internal successors, (351), 327 states have internal predecessors, (351), 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) [2022-11-18 20:11:00,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 351 transitions. [2022-11-18 20:11:00,655 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 351 transitions. Word has length 158 [2022-11-18 20:11:00,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:11:00,655 INFO L495 AbstractCegarLoop]: Abstraction has 328 states and 351 transitions. [2022-11-18 20:11:00,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 6.702127659574468) internal successors, (315), 48 states have internal predecessors, (315), 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) [2022-11-18 20:11:00,656 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 351 transitions. [2022-11-18 20:11:00,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-11-18 20:11:00,665 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:11:00,665 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 22, 22, 22, 1, 1, 1] [2022-11-18 20:11:00,675 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-18 20:11:00,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:11:00,873 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:11:00,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:00,873 INFO L85 PathProgramCache]: Analyzing trace with hash 221628939, now seen corresponding path program 4 times [2022-11-18 20:11:00,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:11:00,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889244049] [2022-11-18 20:11:00,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:00,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:11:00,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:01,882 INFO L134 CoverageAnalysis]: Checked inductivity of 1727 backedges. 0 proven. 1727 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:01,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:11:01,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889244049] [2022-11-18 20:11:01,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889244049] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:11:01,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [302842128] [2022-11-18 20:11:01,883 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 20:11:01,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:11:01,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:01,885 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:11:01,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-18 20:11:01,970 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 20:11:01,970 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:11:01,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-18 20:11:01,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:11:02,256 INFO L134 CoverageAnalysis]: Checked inductivity of 1727 backedges. 0 proven. 1727 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:02,257 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:11:03,535 INFO L134 CoverageAnalysis]: Checked inductivity of 1727 backedges. 0 proven. 1727 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:03,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [302842128] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:11:03,536 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:11:03,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2022-11-18 20:11:03,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536799388] [2022-11-18 20:11:03,537 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:11:03,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-11-18 20:11:03,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:11:03,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-11-18 20:11:03,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-11-18 20:11:03,541 INFO L87 Difference]: Start difference. First operand 328 states and 351 transitions. Second operand has 48 states, 47 states have (on average 6.829787234042553) internal successors, (321), 48 states have internal predecessors, (321), 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) [2022-11-18 20:11:03,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:11:03,763 INFO L93 Difference]: Finished difference Result 332 states and 355 transitions. [2022-11-18 20:11:03,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-18 20:11:03,764 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 6.829787234042553) internal successors, (321), 48 states have internal predecessors, (321), 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 161 [2022-11-18 20:11:03,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:11:03,766 INFO L225 Difference]: With dead ends: 332 [2022-11-18 20:11:03,766 INFO L226 Difference]: Without dead ends: 331 [2022-11-18 20:11:03,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-11-18 20:11:03,768 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 46 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:11:03,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 245 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:11:03,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2022-11-18 20:11:03,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 331. [2022-11-18 20:11:03,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 329 states have (on average 1.006079027355623) internal successors, (331), 330 states have internal predecessors, (331), 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) [2022-11-18 20:11:03,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 331 transitions. [2022-11-18 20:11:03,786 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 331 transitions. Word has length 161 [2022-11-18 20:11:03,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:11:03,787 INFO L495 AbstractCegarLoop]: Abstraction has 331 states and 331 transitions. [2022-11-18 20:11:03,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 6.829787234042553) internal successors, (321), 48 states have internal predecessors, (321), 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) [2022-11-18 20:11:03,787 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 331 transitions. [2022-11-18 20:11:03,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2022-11-18 20:11:03,800 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:11:03,800 INFO L195 NwaCegarLoop]: trace histogram [47, 46, 46, 46, 46, 46, 46, 1, 1, 1] [2022-11-18 20:11:03,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-18 20:11:04,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:11:04,020 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:11:04,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:04,021 INFO L85 PathProgramCache]: Analyzing trace with hash -136535612, now seen corresponding path program 5 times [2022-11-18 20:11:04,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:11:04,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219333446] [2022-11-18 20:11:04,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:04,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:11:04,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:07,426 INFO L134 CoverageAnalysis]: Checked inductivity of 7337 backedges. 0 proven. 7337 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:07,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:11:07,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219333446] [2022-11-18 20:11:07,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219333446] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:11:07,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1344439753] [2022-11-18 20:11:07,427 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-18 20:11:07,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:11:07,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:07,429 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:11:07,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-18 20:11:07,696 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2022-11-18 20:11:07,696 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:11:07,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 609 conjuncts, 48 conjunts are in the unsatisfiable core [2022-11-18 20:11:07,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:11:08,298 INFO L134 CoverageAnalysis]: Checked inductivity of 7337 backedges. 0 proven. 7337 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:08,298 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:11:12,790 INFO L134 CoverageAnalysis]: Checked inductivity of 7337 backedges. 0 proven. 7337 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:12,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1344439753] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:11:12,791 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:11:12,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2022-11-18 20:11:12,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399593231] [2022-11-18 20:11:12,792 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:11:12,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-11-18 20:11:12,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:11:12,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-11-18 20:11:12,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2022-11-18 20:11:12,800 INFO L87 Difference]: Start difference. First operand 331 states and 331 transitions. Second operand has 96 states, 95 states have (on average 6.852631578947369) internal successors, (651), 96 states have internal predecessors, (651), 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) [2022-11-18 20:11:13,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:11:13,501 INFO L93 Difference]: Finished difference Result 712 states and 759 transitions. [2022-11-18 20:11:13,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-11-18 20:11:13,502 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 6.852631578947369) internal successors, (651), 96 states have internal predecessors, (651), 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 326 [2022-11-18 20:11:13,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:11:13,505 INFO L225 Difference]: With dead ends: 712 [2022-11-18 20:11:13,505 INFO L226 Difference]: Without dead ends: 711 [2022-11-18 20:11:13,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 698 GetRequests, 604 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2022-11-18 20:11:13,512 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 466 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:11:13,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [466 Valid, 540 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 20:11:13,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2022-11-18 20:11:13,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 664. [2022-11-18 20:11:13,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 664 states, 662 states have (on average 1.0740181268882176) internal successors, (711), 663 states have internal predecessors, (711), 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) [2022-11-18 20:11:13,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 711 transitions. [2022-11-18 20:11:13,539 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 711 transitions. Word has length 326 [2022-11-18 20:11:13,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:11:13,540 INFO L495 AbstractCegarLoop]: Abstraction has 664 states and 711 transitions. [2022-11-18 20:11:13,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 6.852631578947369) internal successors, (651), 96 states have internal predecessors, (651), 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) [2022-11-18 20:11:13,541 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 711 transitions. [2022-11-18 20:11:13,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2022-11-18 20:11:13,547 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:11:13,547 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 46, 46, 46, 1, 1, 1] [2022-11-18 20:11:13,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-18 20:11:13,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:11:13,754 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:11:13,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:13,754 INFO L85 PathProgramCache]: Analyzing trace with hash -198343029, now seen corresponding path program 5 times [2022-11-18 20:11:13,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:11:13,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853036785] [2022-11-18 20:11:13,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:13,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:11:13,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:16,486 INFO L134 CoverageAnalysis]: Checked inductivity of 7475 backedges. 0 proven. 7475 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:16,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:11:16,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853036785] [2022-11-18 20:11:16,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853036785] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:11:16,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1902318217] [2022-11-18 20:11:16,487 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-18 20:11:16,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:11:16,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:16,489 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:11:16,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-18 20:11:16,750 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2022-11-18 20:11:16,750 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:11:16,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 614 conjuncts, 48 conjunts are in the unsatisfiable core [2022-11-18 20:11:16,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:11:17,442 INFO L134 CoverageAnalysis]: Checked inductivity of 7475 backedges. 0 proven. 7475 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:17,443 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:11:21,759 INFO L134 CoverageAnalysis]: Checked inductivity of 7475 backedges. 0 proven. 7475 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:21,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1902318217] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:11:21,760 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:11:21,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2022-11-18 20:11:21,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774028980] [2022-11-18 20:11:21,761 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:11:21,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-11-18 20:11:21,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:11:21,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-11-18 20:11:21,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2022-11-18 20:11:21,774 INFO L87 Difference]: Start difference. First operand 664 states and 711 transitions. Second operand has 96 states, 95 states have (on average 6.91578947368421) internal successors, (657), 96 states have internal predecessors, (657), 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) [2022-11-18 20:11:22,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:11:22,590 INFO L93 Difference]: Finished difference Result 668 states and 715 transitions. [2022-11-18 20:11:22,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-11-18 20:11:22,591 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 6.91578947368421) internal successors, (657), 96 states have internal predecessors, (657), 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 329 [2022-11-18 20:11:22,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:11:22,603 INFO L225 Difference]: With dead ends: 668 [2022-11-18 20:11:22,603 INFO L226 Difference]: Without dead ends: 667 [2022-11-18 20:11:22,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 704 GetRequests, 610 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2022-11-18 20:11:22,608 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 94 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:11:22,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 489 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 20:11:22,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2022-11-18 20:11:22,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 667. [2022-11-18 20:11:22,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 667 states, 665 states have (on average 1.0030075187969925) internal successors, (667), 666 states have internal predecessors, (667), 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) [2022-11-18 20:11:22,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 667 transitions. [2022-11-18 20:11:22,635 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 667 transitions. Word has length 329 [2022-11-18 20:11:22,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:11:22,636 INFO L495 AbstractCegarLoop]: Abstraction has 667 states and 667 transitions. [2022-11-18 20:11:22,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 6.91578947368421) internal successors, (657), 96 states have internal predecessors, (657), 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) [2022-11-18 20:11:22,637 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 667 transitions. [2022-11-18 20:11:22,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 663 [2022-11-18 20:11:22,658 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:11:22,658 INFO L195 NwaCegarLoop]: trace histogram [95, 94, 94, 94, 94, 94, 94, 1, 1, 1] [2022-11-18 20:11:22,671 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-18 20:11:22,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-18 20:11:22,866 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:11:22,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:22,866 INFO L85 PathProgramCache]: Analyzing trace with hash -395097916, now seen corresponding path program 6 times [2022-11-18 20:11:22,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:11:22,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440560399] [2022-11-18 20:11:22,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:22,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:11:23,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:33,353 INFO L134 CoverageAnalysis]: Checked inductivity of 30785 backedges. 0 proven. 30785 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:33,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:11:33,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440560399] [2022-11-18 20:11:33,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440560399] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:11:33,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [841232157] [2022-11-18 20:11:33,354 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-18 20:11:33,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:11:33,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:33,356 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:11:33,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-18 20:11:33,892 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2022-11-18 20:11:33,892 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:11:33,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 1233 conjuncts, 96 conjunts are in the unsatisfiable core [2022-11-18 20:11:33,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:11:35,100 INFO L134 CoverageAnalysis]: Checked inductivity of 30785 backedges. 0 proven. 30785 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:35,100 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:11:49,418 INFO L134 CoverageAnalysis]: Checked inductivity of 30785 backedges. 0 proven. 30785 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:49,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [841232157] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:11:49,418 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:11:49,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2022-11-18 20:11:49,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109638252] [2022-11-18 20:11:49,420 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:11:49,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2022-11-18 20:11:49,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:11:49,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2022-11-18 20:11:49,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2022-11-18 20:11:49,446 INFO L87 Difference]: Start difference. First operand 667 states and 667 transitions. Second operand has 192 states, 191 states have (on average 6.9267015706806285) internal successors, (1323), 192 states have internal predecessors, (1323), 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) [2022-11-18 20:11:52,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:11:52,808 INFO L93 Difference]: Finished difference Result 1432 states and 1527 transitions. [2022-11-18 20:11:52,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2022-11-18 20:11:52,809 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 6.9267015706806285) internal successors, (1323), 192 states have internal predecessors, (1323), 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 662 [2022-11-18 20:11:52,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:11:52,814 INFO L225 Difference]: With dead ends: 1432 [2022-11-18 20:11:52,814 INFO L226 Difference]: Without dead ends: 1431 [2022-11-18 20:11:52,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1418 GetRequests, 1228 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.8s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2022-11-18 20:11:52,819 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 1026 mSDsluCounter, 1056 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1026 SdHoareTripleChecker+Valid, 1065 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-18 20:11:52,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1026 Valid, 1065 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-18 20:11:52,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1431 states. [2022-11-18 20:11:52,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1431 to 1336. [2022-11-18 20:11:52,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1336 states, 1334 states have (on average 1.0727136431784108) internal successors, (1431), 1335 states have internal predecessors, (1431), 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) [2022-11-18 20:11:52,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 1431 transitions. [2022-11-18 20:11:52,862 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 1431 transitions. Word has length 662 [2022-11-18 20:11:52,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:11:52,864 INFO L495 AbstractCegarLoop]: Abstraction has 1336 states and 1431 transitions. [2022-11-18 20:11:52,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 6.9267015706806285) internal successors, (1323), 192 states have internal predecessors, (1323), 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) [2022-11-18 20:11:52,865 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 1431 transitions. [2022-11-18 20:11:52,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 666 [2022-11-18 20:11:52,884 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:11:52,884 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 95, 95, 94, 94, 94, 1, 1, 1] [2022-11-18 20:11:52,896 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-18 20:11:53,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-18 20:11:53,091 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:11:53,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:53,092 INFO L85 PathProgramCache]: Analyzing trace with hash 2143387531, now seen corresponding path program 6 times [2022-11-18 20:11:53,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:11:53,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032820820] [2022-11-18 20:11:53,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:53,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:11:53,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:12:02,722 INFO L134 CoverageAnalysis]: Checked inductivity of 31067 backedges. 0 proven. 31067 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:12:02,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:12:02,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032820820] [2022-11-18 20:12:02,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032820820] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:12:02,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [985001086] [2022-11-18 20:12:02,723 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-18 20:12:02,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:12:02,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:12:02,734 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:12:02,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-18 20:12:03,263 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2022-11-18 20:12:03,264 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:12:03,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 1238 conjuncts, 96 conjunts are in the unsatisfiable core [2022-11-18 20:12:03,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:12:04,475 INFO L134 CoverageAnalysis]: Checked inductivity of 31067 backedges. 0 proven. 31067 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:12:04,476 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:12:19,085 INFO L134 CoverageAnalysis]: Checked inductivity of 31067 backedges. 0 proven. 31067 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:12:19,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [985001086] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:12:19,086 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:12:19,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2022-11-18 20:12:19,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510576426] [2022-11-18 20:12:19,086 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:12:19,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2022-11-18 20:12:19,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:12:19,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2022-11-18 20:12:19,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2022-11-18 20:12:19,099 INFO L87 Difference]: Start difference. First operand 1336 states and 1431 transitions. Second operand has 192 states, 191 states have (on average 6.958115183246074) internal successors, (1329), 192 states have internal predecessors, (1329), 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) [2022-11-18 20:12:21,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:12:21,811 INFO L93 Difference]: Finished difference Result 1340 states and 1435 transitions. [2022-11-18 20:12:21,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2022-11-18 20:12:21,812 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 6.958115183246074) internal successors, (1329), 192 states have internal predecessors, (1329), 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 665 [2022-11-18 20:12:21,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:12:21,819 INFO L225 Difference]: With dead ends: 1340 [2022-11-18 20:12:21,819 INFO L226 Difference]: Without dead ends: 1339 [2022-11-18 20:12:21,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1424 GetRequests, 1234 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.1s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2022-11-18 20:12:21,824 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 190 mSDsluCounter, 964 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-18 20:12:21,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 973 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-18 20:12:21,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1339 states. [2022-11-18 20:12:21,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1339 to 1339. [2022-11-18 20:12:21,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1339 states, 1337 states have (on average 1.0014958863126402) internal successors, (1339), 1338 states have internal predecessors, (1339), 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) [2022-11-18 20:12:21,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1339 states to 1339 states and 1339 transitions. [2022-11-18 20:12:21,876 INFO L78 Accepts]: Start accepts. Automaton has 1339 states and 1339 transitions. Word has length 665 [2022-11-18 20:12:21,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:12:21,877 INFO L495 AbstractCegarLoop]: Abstraction has 1339 states and 1339 transitions. [2022-11-18 20:12:21,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 6.958115183246074) internal successors, (1329), 192 states have internal predecessors, (1329), 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) [2022-11-18 20:12:21,878 INFO L276 IsEmpty]: Start isEmpty. Operand 1339 states and 1339 transitions. [2022-11-18 20:12:21,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1335 [2022-11-18 20:12:21,897 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:12:21,898 INFO L195 NwaCegarLoop]: trace histogram [191, 190, 190, 190, 190, 190, 190, 1, 1, 1] [2022-11-18 20:12:21,912 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-11-18 20:12:22,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-18 20:12:22,106 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:12:22,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:12:22,107 INFO L85 PathProgramCache]: Analyzing trace with hash -28404028, now seen corresponding path program 7 times [2022-11-18 20:12:22,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:12:22,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278457322] [2022-11-18 20:12:22,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:12:22,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:12:22,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:13:06,309 INFO L134 CoverageAnalysis]: Checked inductivity of 126065 backedges. 0 proven. 126065 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:13:06,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:13:06,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278457322] [2022-11-18 20:13:06,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278457322] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:13:06,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1685686686] [2022-11-18 20:13:06,309 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-18 20:13:06,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:13:06,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:13:06,314 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:13:06,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-18 20:13:06,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:13:06,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 2481 conjuncts, 192 conjunts are in the unsatisfiable core [2022-11-18 20:13:06,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:13:08,997 INFO L134 CoverageAnalysis]: Checked inductivity of 126065 backedges. 0 proven. 126065 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:13:08,997 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:14:02,540 INFO L134 CoverageAnalysis]: Checked inductivity of 126065 backedges. 0 proven. 126065 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:14:02,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1685686686] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:14:02,541 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:14:02,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 192, 192] total 383 [2022-11-18 20:14:02,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624274418] [2022-11-18 20:14:02,542 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:14:02,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2022-11-18 20:14:02,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:14:02,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2022-11-18 20:14:02,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2022-11-18 20:14:02,564 INFO L87 Difference]: Start difference. First operand 1339 states and 1339 transitions. Second operand has 384 states, 383 states have (on average 6.9634464751958225) internal successors, (2667), 384 states have internal predecessors, (2667), 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) [2022-11-18 20:14:24,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:14:24,031 INFO L93 Difference]: Finished difference Result 2872 states and 3063 transitions. [2022-11-18 20:14:24,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2022-11-18 20:14:24,033 INFO L78 Accepts]: Start accepts. Automaton has has 384 states, 383 states have (on average 6.9634464751958225) internal successors, (2667), 384 states have internal predecessors, (2667), 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 1334 [2022-11-18 20:14:24,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:14:24,044 INFO L225 Difference]: With dead ends: 2872 [2022-11-18 20:14:24,044 INFO L226 Difference]: Without dead ends: 2871 [2022-11-18 20:14:24,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2858 GetRequests, 2476 SyntacticMatches, 0 SemanticMatches, 382 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 68.7s TimeCoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2022-11-18 20:14:24,056 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 2397 mSDsluCounter, 2111 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 199 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2397 SdHoareTripleChecker+Valid, 2120 SdHoareTripleChecker+Invalid, 971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 199 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:14:24,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2397 Valid, 2120 Invalid, 971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [199 Valid, 772 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-18 20:14:24,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2871 states. [2022-11-18 20:14:24,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2871 to 2680. [2022-11-18 20:14:24,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2680 states, 2678 states have (on average 1.072068707991038) internal successors, (2871), 2679 states have internal predecessors, (2871), 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) [2022-11-18 20:14:24,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2680 states to 2680 states and 2871 transitions. [2022-11-18 20:14:24,140 INFO L78 Accepts]: Start accepts. Automaton has 2680 states and 2871 transitions. Word has length 1334 [2022-11-18 20:14:24,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:14:24,143 INFO L495 AbstractCegarLoop]: Abstraction has 2680 states and 2871 transitions. [2022-11-18 20:14:24,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 384 states, 383 states have (on average 6.9634464751958225) internal successors, (2667), 384 states have internal predecessors, (2667), 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) [2022-11-18 20:14:24,145 INFO L276 IsEmpty]: Start isEmpty. Operand 2680 states and 2871 transitions. [2022-11-18 20:14:24,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1338 [2022-11-18 20:14:24,160 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:14:24,161 INFO L195 NwaCegarLoop]: trace histogram [191, 191, 191, 191, 190, 190, 190, 1, 1, 1] [2022-11-18 20:14:24,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-18 20:14:24,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:14:24,361 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:14:24,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:14:24,362 INFO L85 PathProgramCache]: Analyzing trace with hash -75796085, now seen corresponding path program 7 times [2022-11-18 20:14:24,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:14:24,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282594386] [2022-11-18 20:14:24,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:14:24,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:14:24,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:15:05,993 INFO L134 CoverageAnalysis]: Checked inductivity of 126635 backedges. 0 proven. 126635 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:15:05,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:15:05,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282594386] [2022-11-18 20:15:05,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282594386] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:15:05,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1018280593] [2022-11-18 20:15:05,994 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-18 20:15:05,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:15:05,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:15:05,995 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:15:05,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-18 20:15:06,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:15:06,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 2486 conjuncts, 192 conjunts are in the unsatisfiable core [2022-11-18 20:15:06,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:15:09,204 INFO L134 CoverageAnalysis]: Checked inductivity of 126635 backedges. 0 proven. 126635 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:15:09,204 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:16:02,302 INFO L134 CoverageAnalysis]: Checked inductivity of 126635 backedges. 0 proven. 126635 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:16:02,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1018280593] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:16:02,302 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:16:02,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 192, 192] total 383 [2022-11-18 20:16:02,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341114932] [2022-11-18 20:16:02,303 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:16:02,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2022-11-18 20:16:02,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:16:02,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2022-11-18 20:16:02,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2022-11-18 20:16:02,327 INFO L87 Difference]: Start difference. First operand 2680 states and 2871 transitions. Second operand has 384 states, 383 states have (on average 6.97911227154047) internal successors, (2673), 384 states have internal predecessors, (2673), 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) [2022-11-18 20:16:14,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:16:14,475 INFO L93 Difference]: Finished difference Result 2684 states and 2875 transitions. [2022-11-18 20:16:14,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2022-11-18 20:16:14,477 INFO L78 Accepts]: Start accepts. Automaton has has 384 states, 383 states have (on average 6.97911227154047) internal successors, (2673), 384 states have internal predecessors, (2673), 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 1337 [2022-11-18 20:16:14,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:16:14,486 INFO L225 Difference]: With dead ends: 2684 [2022-11-18 20:16:14,486 INFO L226 Difference]: Without dead ends: 2683 [2022-11-18 20:16:14,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2864 GetRequests, 2482 SyntacticMatches, 0 SemanticMatches, 382 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 68.0s TimeCoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2022-11-18 20:16:14,496 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 382 mSDsluCounter, 1928 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 199 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 1937 SdHoareTripleChecker+Invalid, 974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 199 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-18 20:16:14,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [382 Valid, 1937 Invalid, 974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [199 Valid, 775 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-18 20:16:14,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2683 states. [2022-11-18 20:16:14,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2683 to 2683. [2022-11-18 20:16:14,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2683 states, 2681 states have (on average 1.000745990302126) internal successors, (2683), 2682 states have internal predecessors, (2683), 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) [2022-11-18 20:16:14,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2683 states to 2683 states and 2683 transitions. [2022-11-18 20:16:14,569 INFO L78 Accepts]: Start accepts. Automaton has 2683 states and 2683 transitions. Word has length 1337 [2022-11-18 20:16:14,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:16:14,571 INFO L495 AbstractCegarLoop]: Abstraction has 2683 states and 2683 transitions. [2022-11-18 20:16:14,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 384 states, 383 states have (on average 6.97911227154047) internal successors, (2673), 384 states have internal predecessors, (2673), 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) [2022-11-18 20:16:14,572 INFO L276 IsEmpty]: Start isEmpty. Operand 2683 states and 2683 transitions. [2022-11-18 20:16:14,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2679 [2022-11-18 20:16:14,623 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:16:14,623 INFO L195 NwaCegarLoop]: trace histogram [383, 382, 382, 382, 382, 382, 382, 1, 1, 1] [2022-11-18 20:16:14,636 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-18 20:16:14,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:16:14,831 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:16:14,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:16:14,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1933757756, now seen corresponding path program 8 times [2022-11-18 20:16:14,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:16:14,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752658479] [2022-11-18 20:16:14,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:16:14,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:16:16,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:10,967 INFO L134 CoverageAnalysis]: Checked inductivity of 510161 backedges. 0 proven. 510161 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:20:10,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:20:10,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752658479] [2022-11-18 20:20:10,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752658479] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:20:10,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1958257701] [2022-11-18 20:20:10,967 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:20:10,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:20:10,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:20:10,970 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:20:10,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddd7f49-0110-4b59-8994-ac4b3251b962/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-18 20:20:11,826 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:20:11,826 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:20:11,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 4977 conjuncts, 384 conjunts are in the unsatisfiable core [2022-11-18 20:20:11,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:20:16,357 INFO L134 CoverageAnalysis]: Checked inductivity of 510161 backedges. 0 proven. 510161 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:20:16,358 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:23:18,892 INFO L134 CoverageAnalysis]: Checked inductivity of 510161 backedges. 0 proven. 510161 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:18,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1958257701] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:23:18,893 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:23:18,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [384, 384, 384] total 767 [2022-11-18 20:23:18,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707394956] [2022-11-18 20:23:18,894 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:23:18,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 768 states [2022-11-18 20:23:18,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:23:18,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 768 interpolants. [2022-11-18 20:23:18,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=294528, Invalid=294528, Unknown=0, NotChecked=0, Total=589056 [2022-11-18 20:23:18,963 INFO L87 Difference]: Start difference. First operand 2683 states and 2683 transitions. Second operand has 768 states, 767 states have (on average 6.981747066492829) internal successors, (5355), 768 states have internal predecessors, (5355), 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)