./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/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_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/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 32bit --witnessprinter.graph.data.programhash bb0a504b43b0de742fcc89ebbe9d313056bb1824edece6c56238a649b6f48626 --- 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 20:37:23,706 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:37:23,709 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:37:23,742 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:37:23,743 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:37:23,747 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:37:23,750 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:37:23,757 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:37:23,759 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:37:23,762 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:37:23,764 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:37:23,767 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:37:23,767 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:37:23,774 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:37:23,776 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:37:23,778 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:37:23,780 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:37:23,781 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:37:23,782 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:37:23,784 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:37:23,788 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:37:23,789 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:37:23,793 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:37:23,794 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:37:23,801 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:37:23,801 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:37:23,801 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:37:23,803 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:37:23,804 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:37:23,805 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:37:23,806 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:37:23,807 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:37:23,809 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:37:23,810 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:37:23,811 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:37:23,812 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:37:23,812 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:37:23,813 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:37:23,813 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:37:23,814 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:37:23,814 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:37:23,815 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-18 20:37:23,858 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:37:23,859 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:37:23,860 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:37:23,860 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:37:23,878 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:37:23,878 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:37:23,879 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:37:23,879 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:37:23,879 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:37:23,880 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:37:23,881 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:37:23,881 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:37:23,881 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:37:23,881 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:37:23,881 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:37:23,882 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:37:23,882 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:37:23,882 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:37:23,882 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 20:37:23,882 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:37:23,883 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:37:23,883 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:37:23,883 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:37:23,883 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:37:23,884 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:37:23,884 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:37:23,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:37:23,884 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:37:23,885 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:37:23,885 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:37:23,885 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:37:23,885 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:37:23,886 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:37:23,886 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:37:23,886 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:37:23,886 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_c45094ea-4427-49f7-af67-4e9cb808b87c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb0a504b43b0de742fcc89ebbe9d313056bb1824edece6c56238a649b6f48626 [2022-11-18 20:37:24,154 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:37:24,175 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:37:24,177 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:37:24,179 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:37:24,179 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:37:24,181 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-2.i [2022-11-18 20:37:24,258 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/data/665011f39/49150755e6cd45c3976712531f748870/FLAGa35cc6281 [2022-11-18 20:37:24,814 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:37:24,814 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-2.i [2022-11-18 20:37:24,829 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/data/665011f39/49150755e6cd45c3976712531f748870/FLAGa35cc6281 [2022-11-18 20:37:25,102 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/data/665011f39/49150755e6cd45c3976712531f748870 [2022-11-18 20:37:25,104 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:37:25,106 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:37:25,107 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:37:25,107 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:37:25,111 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:37:25,112 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:37:25" (1/1) ... [2022-11-18 20:37:25,113 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7905e731 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:37:25, skipping insertion in model container [2022-11-18 20:37:25,113 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:37:25" (1/1) ... [2022-11-18 20:37:25,121 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:37:25,180 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:37:25,707 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:37:25,730 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:37:25,812 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:37:25,858 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:37:25,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:37:25 WrapperNode [2022-11-18 20:37:25,859 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:37:25,860 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:37:25,861 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:37:25,861 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:37:25,869 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:37:25" (1/1) ... [2022-11-18 20:37:25,904 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:37:25" (1/1) ... [2022-11-18 20:37:25,935 INFO L138 Inliner]: procedures = 166, calls = 80, calls flagged for inlining = 24, calls inlined = 6, statements flattened = 102 [2022-11-18 20:37:25,935 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:37:25,936 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:37:25,936 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:37:25,936 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:37:25,946 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:37:25" (1/1) ... [2022-11-18 20:37:25,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:37:25" (1/1) ... [2022-11-18 20:37:25,954 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:37:25" (1/1) ... [2022-11-18 20:37:25,958 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:37:25" (1/1) ... [2022-11-18 20:37:25,962 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:37:25" (1/1) ... [2022-11-18 20:37:25,966 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:37:25" (1/1) ... [2022-11-18 20:37:25,968 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:37:25" (1/1) ... [2022-11-18 20:37:25,969 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:37:25" (1/1) ... [2022-11-18 20:37:25,971 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:37:25,975 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:37:25,975 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:37:25,975 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:37:25,978 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:37:25" (1/1) ... [2022-11-18 20:37:25,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:37:25,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:37:26,014 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:37:26,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:37:26,060 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-18 20:37:26,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-18 20:37:26,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 20:37:26,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:37:26,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 20:37:26,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 20:37:26,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:37:26,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-18 20:37:26,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:37:26,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:37:26,177 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:37:26,179 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:37:26,439 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:37:26,446 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:37:26,446 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-18 20:37:26,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:37:26 BoogieIcfgContainer [2022-11-18 20:37:26,449 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:37:26,451 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:37:26,452 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:37:26,461 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:37:26,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:37:25" (1/3) ... [2022-11-18 20:37:26,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@435e79bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:37:26, skipping insertion in model container [2022-11-18 20:37:26,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:37:25" (2/3) ... [2022-11-18 20:37:26,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@435e79bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:37:26, skipping insertion in model container [2022-11-18 20:37:26,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:37:26" (3/3) ... [2022-11-18 20:37:26,464 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test17_2-2.i [2022-11-18 20:37:26,487 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:37:26,488 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-11-18 20:37:26,592 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:37:26,602 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;@6cbb43a6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:37:26,602 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-18 20:37:26,607 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 38 states have (on average 1.605263157894737) internal successors, (61), 48 states have internal predecessors, (61), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-18 20:37:26,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-18 20:37:26,615 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:37:26,615 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:37:26,616 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 20:37:26,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:37:26,621 INFO L85 PathProgramCache]: Analyzing trace with hash -920797956, now seen corresponding path program 1 times [2022-11-18 20:37:26,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:37:26,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827386000] [2022-11-18 20:37:26,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:37:26,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:37:26,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:26,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 20:37:26,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:26,869 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 20:37:26,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:37:26,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827386000] [2022-11-18 20:37:26,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827386000] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:37:26,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:37:26,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:37:26,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277000134] [2022-11-18 20:37:26,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:37:26,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:37:26,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:37:26,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:37:26,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:37:26,940 INFO L87 Difference]: Start difference. First operand has 52 states, 38 states have (on average 1.605263157894737) internal successors, (61), 48 states have internal predecessors, (61), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:37:27,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:37:27,003 INFO L93 Difference]: Finished difference Result 101 states and 126 transitions. [2022-11-18 20:37:27,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:37:27,006 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-11-18 20:37:27,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:37:27,015 INFO L225 Difference]: With dead ends: 101 [2022-11-18 20:37:27,015 INFO L226 Difference]: Without dead ends: 49 [2022-11-18 20:37:27,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 20:37:27,022 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 3 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:37:27,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 113 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:37:27,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-11-18 20:37:27,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 47. [2022-11-18 20:37:27,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 34 states have (on average 1.4705882352941178) internal successors, (50), 43 states have internal predecessors, (50), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-18 20:37:27,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 54 transitions. [2022-11-18 20:37:27,066 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 54 transitions. Word has length 15 [2022-11-18 20:37:27,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:37:27,067 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 54 transitions. [2022-11-18 20:37:27,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:37:27,067 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 54 transitions. [2022-11-18 20:37:27,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-18 20:37:27,069 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:37:27,069 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:37:27,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:37:27,070 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 20:37:27,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:37:27,071 INFO L85 PathProgramCache]: Analyzing trace with hash -219733378, now seen corresponding path program 1 times [2022-11-18 20:37:27,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:37:27,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842258993] [2022-11-18 20:37:27,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:37:27,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:37:27,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:27,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 20:37:27,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:27,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:37:27,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:37:27,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842258993] [2022-11-18 20:37:27,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842258993] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:37:27,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:37:27,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:37:27,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548424931] [2022-11-18 20:37:27,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:37:27,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:37:27,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:37:27,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:37:27,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:37:27,320 INFO L87 Difference]: Start difference. First operand 47 states and 54 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:37:27,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:37:27,397 INFO L93 Difference]: Finished difference Result 84 states and 98 transitions. [2022-11-18 20:37:27,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:37:27,398 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-11-18 20:37:27,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:37:27,399 INFO L225 Difference]: With dead ends: 84 [2022-11-18 20:37:27,399 INFO L226 Difference]: Without dead ends: 82 [2022-11-18 20:37:27,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:37:27,401 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 38 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:37:27,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 195 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:37:27,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-11-18 20:37:27,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 51. [2022-11-18 20:37:27,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 38 states have (on average 1.4473684210526316) internal successors, (55), 47 states have internal predecessors, (55), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-18 20:37:27,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 59 transitions. [2022-11-18 20:37:27,430 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 59 transitions. Word has length 15 [2022-11-18 20:37:27,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:37:27,431 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 59 transitions. [2022-11-18 20:37:27,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:37:27,433 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 59 transitions. [2022-11-18 20:37:27,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-18 20:37:27,435 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:37:27,436 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:37:27,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:37:27,437 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 20:37:27,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:37:27,440 INFO L85 PathProgramCache]: Analyzing trace with hash 227966458, now seen corresponding path program 1 times [2022-11-18 20:37:27,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:37:27,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216106176] [2022-11-18 20:37:27,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:37:27,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:37:27,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:27,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 20:37:27,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:27,670 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:37:27,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:37:27,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216106176] [2022-11-18 20:37:27,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216106176] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:37:27,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2108927649] [2022-11-18 20:37:27,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:37:27,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:37:27,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:37:27,690 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:37:27,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:37:27,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:27,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 20:37:27,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:37:27,924 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:37:27,925 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:37:28,021 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:37:28,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2108927649] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:37:28,022 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:37:28,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 12 [2022-11-18 20:37:28,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696154287] [2022-11-18 20:37:28,023 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:37:28,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 20:37:28,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:37:28,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 20:37:28,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-11-18 20:37:28,028 INFO L87 Difference]: Start difference. First operand 51 states and 59 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:37:28,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:37:28,276 INFO L93 Difference]: Finished difference Result 185 states and 219 transitions. [2022-11-18 20:37:28,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-18 20:37:28,276 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2022-11-18 20:37:28,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:37:28,278 INFO L225 Difference]: With dead ends: 185 [2022-11-18 20:37:28,278 INFO L226 Difference]: Without dead ends: 184 [2022-11-18 20:37:28,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380 [2022-11-18 20:37:28,280 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 199 mSDsluCounter, 586 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 684 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:37:28,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 684 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:37:28,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2022-11-18 20:37:28,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 62. [2022-11-18 20:37:28,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 49 states have (on average 1.4489795918367347) internal successors, (71), 58 states have internal predecessors, (71), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-18 20:37:28,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 75 transitions. [2022-11-18 20:37:28,290 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 75 transitions. Word has length 19 [2022-11-18 20:37:28,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:37:28,290 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 75 transitions. [2022-11-18 20:37:28,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:37:28,291 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 75 transitions. [2022-11-18 20:37:28,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-18 20:37:28,291 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:37:28,291 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:37:28,302 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-18 20:37:28,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:37:28,498 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 20:37:28,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:37:28,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1831347923, now seen corresponding path program 1 times [2022-11-18 20:37:28,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:37:28,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501361922] [2022-11-18 20:37:28,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:37:28,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:37:28,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:28,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 20:37:28,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:28,652 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 20:37:28,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:37:28,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501361922] [2022-11-18 20:37:28,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501361922] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:37:28,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:37:28,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:37:28,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5840759] [2022-11-18 20:37:28,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:37:28,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:37:28,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:37:28,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:37:28,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:37:28,655 INFO L87 Difference]: Start difference. First operand 62 states and 75 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:37:28,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:37:28,695 INFO L93 Difference]: Finished difference Result 70 states and 84 transitions. [2022-11-18 20:37:28,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:37:28,696 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2022-11-18 20:37:28,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:37:28,697 INFO L225 Difference]: With dead ends: 70 [2022-11-18 20:37:28,697 INFO L226 Difference]: Without dead ends: 68 [2022-11-18 20:37:28,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:37:28,699 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 6 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:37:28,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 196 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:37:28,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-11-18 20:37:28,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 66. [2022-11-18 20:37:28,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 53 states have (on average 1.4150943396226414) internal successors, (75), 62 states have internal predecessors, (75), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-18 20:37:28,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 79 transitions. [2022-11-18 20:37:28,706 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 79 transitions. Word has length 20 [2022-11-18 20:37:28,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:37:28,707 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 79 transitions. [2022-11-18 20:37:28,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:37:28,707 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 79 transitions. [2022-11-18 20:37:28,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-18 20:37:28,708 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:37:28,708 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:37:28,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:37:28,708 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 20:37:28,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:37:28,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1522974324, now seen corresponding path program 1 times [2022-11-18 20:37:28,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:37:28,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745497453] [2022-11-18 20:37:28,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:37:28,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:37:28,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:28,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 20:37:28,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:28,815 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:37:28,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:37:28,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745497453] [2022-11-18 20:37:28,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745497453] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:37:28,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [928716750] [2022-11-18 20:37:28,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:37:28,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:37:28,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:37:28,817 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:37:28,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 20:37:28,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:28,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 20:37:28,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:37:28,973 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:37:28,973 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:37:28,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [928716750] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:37:28,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:37:28,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2022-11-18 20:37:28,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606160398] [2022-11-18 20:37:28,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:37:28,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:37:28,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:37:28,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:37:28,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:37:28,977 INFO L87 Difference]: Start difference. First operand 66 states and 79 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:37:29,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:37:29,031 INFO L93 Difference]: Finished difference Result 99 states and 116 transitions. [2022-11-18 20:37:29,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:37:29,032 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2022-11-18 20:37:29,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:37:29,034 INFO L225 Difference]: With dead ends: 99 [2022-11-18 20:37:29,034 INFO L226 Difference]: Without dead ends: 98 [2022-11-18 20:37:29,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:37:29,036 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 71 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:37:29,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 283 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:37:29,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-11-18 20:37:29,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 65. [2022-11-18 20:37:29,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 53 states have (on average 1.3584905660377358) internal successors, (72), 61 states have internal predecessors, (72), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-18 20:37:29,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 76 transitions. [2022-11-18 20:37:29,062 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 76 transitions. Word has length 20 [2022-11-18 20:37:29,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:37:29,063 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 76 transitions. [2022-11-18 20:37:29,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:37:29,065 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 76 transitions. [2022-11-18 20:37:29,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-18 20:37:29,066 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:37:29,066 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:37:29,076 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-18 20:37:29,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:37:29,272 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 20:37:29,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:37:29,272 INFO L85 PathProgramCache]: Analyzing trace with hash -607812044, now seen corresponding path program 1 times [2022-11-18 20:37:29,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:37:29,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972316147] [2022-11-18 20:37:29,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:37:29,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:37:29,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:29,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 20:37:29,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:29,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-18 20:37:29,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:29,412 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-18 20:37:29,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:37:29,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972316147] [2022-11-18 20:37:29,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972316147] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:37:29,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:37:29,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:37:29,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177651176] [2022-11-18 20:37:29,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:37:29,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:37:29,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:37:29,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:37:29,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:37:29,421 INFO L87 Difference]: Start difference. First operand 65 states and 76 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 20:37:29,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:37:29,485 INFO L93 Difference]: Finished difference Result 112 states and 129 transitions. [2022-11-18 20:37:29,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:37:29,487 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2022-11-18 20:37:29,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:37:29,488 INFO L225 Difference]: With dead ends: 112 [2022-11-18 20:37:29,488 INFO L226 Difference]: Without dead ends: 90 [2022-11-18 20:37:29,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:37:29,491 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 19 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:37:29,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 295 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:37:29,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-11-18 20:37:29,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 69. [2022-11-18 20:37:29,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 56 states have (on average 1.3392857142857142) internal successors, (75), 64 states have internal predecessors, (75), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-18 20:37:29,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 81 transitions. [2022-11-18 20:37:29,511 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 81 transitions. Word has length 23 [2022-11-18 20:37:29,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:37:29,511 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 81 transitions. [2022-11-18 20:37:29,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 20:37:29,512 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 81 transitions. [2022-11-18 20:37:29,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-18 20:37:29,514 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:37:29,515 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:37:29,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:37:29,515 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 20:37:29,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:37:29,516 INFO L85 PathProgramCache]: Analyzing trace with hash -579182893, now seen corresponding path program 1 times [2022-11-18 20:37:29,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:37:29,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397045988] [2022-11-18 20:37:29,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:37:29,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:37:29,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:29,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 20:37:29,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:29,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-18 20:37:29,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:29,585 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-18 20:37:29,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:37:29,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397045988] [2022-11-18 20:37:29,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397045988] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:37:29,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:37:29,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:37:29,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565947853] [2022-11-18 20:37:29,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:37:29,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:37:29,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:37:29,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:37:29,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:37:29,588 INFO L87 Difference]: Start difference. First operand 69 states and 81 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-18 20:37:29,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:37:29,640 INFO L93 Difference]: Finished difference Result 103 states and 120 transitions. [2022-11-18 20:37:29,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:37:29,641 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 23 [2022-11-18 20:37:29,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:37:29,642 INFO L225 Difference]: With dead ends: 103 [2022-11-18 20:37:29,642 INFO L226 Difference]: Without dead ends: 101 [2022-11-18 20:37:29,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:37:29,643 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 27 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:37:29,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 136 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:37:29,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2022-11-18 20:37:29,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 75. [2022-11-18 20:37:29,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 61 states have (on average 1.3442622950819672) internal successors, (82), 69 states have internal predecessors, (82), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-18 20:37:29,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 91 transitions. [2022-11-18 20:37:29,650 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 91 transitions. Word has length 23 [2022-11-18 20:37:29,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:37:29,651 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 91 transitions. [2022-11-18 20:37:29,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-18 20:37:29,651 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 91 transitions. [2022-11-18 20:37:29,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-18 20:37:29,652 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:37:29,652 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:37:29,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:37:29,652 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 20:37:29,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:37:29,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1662302506, now seen corresponding path program 1 times [2022-11-18 20:37:29,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:37:29,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55128319] [2022-11-18 20:37:29,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:37:29,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:37:29,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:29,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 20:37:29,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:29,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-18 20:37:29,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:29,750 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-18 20:37:29,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:37:29,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55128319] [2022-11-18 20:37:29,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55128319] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:37:29,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:37:29,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:37:29,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819178662] [2022-11-18 20:37:29,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:37:29,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:37:29,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:37:29,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:37:29,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:37:29,759 INFO L87 Difference]: Start difference. First operand 75 states and 91 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-18 20:37:29,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:37:29,824 INFO L93 Difference]: Finished difference Result 101 states and 118 transitions. [2022-11-18 20:37:29,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:37:29,825 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24 [2022-11-18 20:37:29,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:37:29,826 INFO L225 Difference]: With dead ends: 101 [2022-11-18 20:37:29,826 INFO L226 Difference]: Without dead ends: 99 [2022-11-18 20:37:29,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:37:29,828 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 26 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:37:29,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 178 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:37:29,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-11-18 20:37:29,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 80. [2022-11-18 20:37:29,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 66 states have (on average 1.3181818181818181) internal successors, (87), 73 states have internal predecessors, (87), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-18 20:37:29,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 96 transitions. [2022-11-18 20:37:29,839 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 96 transitions. Word has length 24 [2022-11-18 20:37:29,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:37:29,839 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 96 transitions. [2022-11-18 20:37:29,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-18 20:37:29,840 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 96 transitions. [2022-11-18 20:37:29,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-18 20:37:29,840 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:37:29,840 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:37:29,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:37:29,841 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 20:37:29,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:37:29,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1140733481, now seen corresponding path program 1 times [2022-11-18 20:37:29,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:37:29,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474360973] [2022-11-18 20:37:29,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:37:29,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:37:29,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:29,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 20:37:29,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:29,925 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:37:29,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:37:29,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474360973] [2022-11-18 20:37:29,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474360973] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:37:29,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [538228996] [2022-11-18 20:37:29,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:37:29,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:37:29,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:37:29,928 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:37:29,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 20:37:30,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:30,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 20:37:30,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:37:30,094 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-18 20:37:30,094 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:37:30,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [538228996] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:37:30,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:37:30,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2022-11-18 20:37:30,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185735704] [2022-11-18 20:37:30,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:37:30,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:37:30,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:37:30,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:37:30,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:37:30,096 INFO L87 Difference]: Start difference. First operand 80 states and 96 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:37:30,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:37:30,154 INFO L93 Difference]: Finished difference Result 132 states and 156 transitions. [2022-11-18 20:37:30,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:37:30,155 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2022-11-18 20:37:30,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:37:30,156 INFO L225 Difference]: With dead ends: 132 [2022-11-18 20:37:30,157 INFO L226 Difference]: Without dead ends: 80 [2022-11-18 20:37:30,157 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-11-18 20:37:30,158 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 87 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:37:30,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 100 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:37:30,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-11-18 20:37:30,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2022-11-18 20:37:30,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 66 states have (on average 1.303030303030303) internal successors, (86), 73 states have internal predecessors, (86), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-18 20:37:30,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 95 transitions. [2022-11-18 20:37:30,166 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 95 transitions. Word has length 24 [2022-11-18 20:37:30,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:37:30,167 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 95 transitions. [2022-11-18 20:37:30,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:37:30,167 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 95 transitions. [2022-11-18 20:37:30,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-18 20:37:30,168 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:37:30,168 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:37:30,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:37:30,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:37:30,374 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 20:37:30,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:37:30,375 INFO L85 PathProgramCache]: Analyzing trace with hash 754452013, now seen corresponding path program 1 times [2022-11-18 20:37:30,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:37:30,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356394066] [2022-11-18 20:37:30,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:37:30,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:37:30,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:30,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 20:37:30,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:30,485 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 20:37:30,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:37:30,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356394066] [2022-11-18 20:37:30,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356394066] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:37:30,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [138774346] [2022-11-18 20:37:30,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:37:30,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:37:30,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:37:30,487 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:37:30,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 20:37:30,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:30,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 20:37:30,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:37:30,663 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-18 20:37:30,663 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:37:30,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [138774346] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:37:30,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:37:30,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2022-11-18 20:37:30,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263763694] [2022-11-18 20:37:30,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:37:30,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:37:30,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:37:30,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:37:30,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:37:30,666 INFO L87 Difference]: Start difference. First operand 80 states and 95 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:37:30,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:37:30,742 INFO L93 Difference]: Finished difference Result 110 states and 126 transitions. [2022-11-18 20:37:30,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:37:30,743 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2022-11-18 20:37:30,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:37:30,744 INFO L225 Difference]: With dead ends: 110 [2022-11-18 20:37:30,744 INFO L226 Difference]: Without dead ends: 98 [2022-11-18 20:37:30,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-11-18 20:37:30,746 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 130 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:37:30,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 100 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:37:30,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-11-18 20:37:30,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 80. [2022-11-18 20:37:30,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 66 states have (on average 1.2878787878787878) internal successors, (85), 73 states have internal predecessors, (85), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-18 20:37:30,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 94 transitions. [2022-11-18 20:37:30,766 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 94 transitions. Word has length 28 [2022-11-18 20:37:30,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:37:30,766 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 94 transitions. [2022-11-18 20:37:30,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:37:30,767 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 94 transitions. [2022-11-18 20:37:30,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-18 20:37:30,768 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:37:30,768 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:37:30,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 20:37:30,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-18 20:37:30,974 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 20:37:30,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:37:30,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1876932633, now seen corresponding path program 1 times [2022-11-18 20:37:30,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:37:30,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391682061] [2022-11-18 20:37:30,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:37:30,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:37:30,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:31,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 20:37:31,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:31,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 20:37:31,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:31,056 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-18 20:37:31,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:37:31,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391682061] [2022-11-18 20:37:31,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391682061] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:37:31,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:37:31,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:37:31,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915958572] [2022-11-18 20:37:31,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:37:31,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:37:31,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:37:31,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:37:31,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:37:31,061 INFO L87 Difference]: Start difference. First operand 80 states and 94 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-18 20:37:31,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:37:31,128 INFO L93 Difference]: Finished difference Result 122 states and 138 transitions. [2022-11-18 20:37:31,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:37:31,129 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 31 [2022-11-18 20:37:31,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:37:31,130 INFO L225 Difference]: With dead ends: 122 [2022-11-18 20:37:31,130 INFO L226 Difference]: Without dead ends: 104 [2022-11-18 20:37:31,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:37:31,132 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 33 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:37:31,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 202 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:37:31,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2022-11-18 20:37:31,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 81. [2022-11-18 20:37:31,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 67 states have (on average 1.2835820895522387) internal successors, (86), 74 states have internal predecessors, (86), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-18 20:37:31,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 95 transitions. [2022-11-18 20:37:31,142 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 95 transitions. Word has length 31 [2022-11-18 20:37:31,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:37:31,144 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 95 transitions. [2022-11-18 20:37:31,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-18 20:37:31,145 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 95 transitions. [2022-11-18 20:37:31,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-18 20:37:31,150 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:37:31,150 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:37:31,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 20:37:31,152 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 20:37:31,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:37:31,152 INFO L85 PathProgramCache]: Analyzing trace with hash 154393710, now seen corresponding path program 2 times [2022-11-18 20:37:31,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:37:31,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752472425] [2022-11-18 20:37:31,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:37:31,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:37:31,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:31,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 20:37:31,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:31,407 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:37:31,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:37:31,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752472425] [2022-11-18 20:37:31,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752472425] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:37:31,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1121889245] [2022-11-18 20:37:31,408 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:37:31,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:37:31,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:37:31,409 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:37:31,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 20:37:31,496 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 20:37:31,496 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:37:31,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 20:37:31,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:37:31,615 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-18 20:37:31,615 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:37:31,725 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-18 20:37:31,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1121889245] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:37:31,726 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:37:31,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 6, 6] total 17 [2022-11-18 20:37:31,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337378653] [2022-11-18 20:37:31,729 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:37:31,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 20:37:31,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:37:31,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 20:37:31,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2022-11-18 20:37:31,731 INFO L87 Difference]: Start difference. First operand 81 states and 95 transitions. Second operand has 18 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 states have internal predecessors, (43), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-18 20:37:32,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:37:32,266 INFO L93 Difference]: Finished difference Result 322 states and 379 transitions. [2022-11-18 20:37:32,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-18 20:37:32,267 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 states have internal predecessors, (43), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 31 [2022-11-18 20:37:32,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:37:32,269 INFO L225 Difference]: With dead ends: 322 [2022-11-18 20:37:32,270 INFO L226 Difference]: Without dead ends: 321 [2022-11-18 20:37:32,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 55 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=271, Invalid=721, Unknown=0, NotChecked=0, Total=992 [2022-11-18 20:37:32,271 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 545 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 545 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:37:32,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [545 Valid, 648 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:37:32,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2022-11-18 20:37:32,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 66. [2022-11-18 20:37:32,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 53 states have (on average 1.2830188679245282) internal successors, (68), 59 states have internal predecessors, (68), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-18 20:37:32,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 77 transitions. [2022-11-18 20:37:32,293 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 77 transitions. Word has length 31 [2022-11-18 20:37:32,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:37:32,294 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 77 transitions. [2022-11-18 20:37:32,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 states have internal predecessors, (43), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-18 20:37:32,294 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 77 transitions. [2022-11-18 20:37:32,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-18 20:37:32,295 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:37:32,295 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:37:32,306 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-18 20:37:32,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-18 20:37:32,501 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 20:37:32,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:37:32,502 INFO L85 PathProgramCache]: Analyzing trace with hash -539706370, now seen corresponding path program 1 times [2022-11-18 20:37:32,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:37:32,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693488456] [2022-11-18 20:37:32,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:37:32,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:37:32,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:32,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 20:37:32,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:32,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 20:37:32,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:32,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-18 20:37:32,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:32,615 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-18 20:37:32,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:37:32,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693488456] [2022-11-18 20:37:32,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693488456] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:37:32,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [993663869] [2022-11-18 20:37:32,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:37:32,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:37:32,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:37:32,618 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:37:32,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-18 20:37:32,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:32,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 20:37:32,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:37:32,752 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-18 20:37:32,752 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:37:32,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [993663869] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:37:32,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:37:32,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-11-18 20:37:32,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478972593] [2022-11-18 20:37:32,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:37:32,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:37:32,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:37:32,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:37:32,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:37:32,754 INFO L87 Difference]: Start difference. First operand 66 states and 77 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-18 20:37:32,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:37:32,790 INFO L93 Difference]: Finished difference Result 66 states and 77 transitions. [2022-11-18 20:37:32,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:37:32,790 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 38 [2022-11-18 20:37:32,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:37:32,791 INFO L225 Difference]: With dead ends: 66 [2022-11-18 20:37:32,791 INFO L226 Difference]: Without dead ends: 65 [2022-11-18 20:37:32,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:37:32,792 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 26 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:37:32,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 101 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:37:32,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-11-18 20:37:32,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2022-11-18 20:37:32,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 53 states have (on average 1.2641509433962264) internal successors, (67), 58 states have internal predecessors, (67), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-18 20:37:32,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 76 transitions. [2022-11-18 20:37:32,804 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 76 transitions. Word has length 38 [2022-11-18 20:37:32,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:37:32,804 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 76 transitions. [2022-11-18 20:37:32,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-18 20:37:32,805 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 76 transitions. [2022-11-18 20:37:32,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-18 20:37:32,805 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:37:32,805 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:37:32,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-18 20:37:33,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-18 20:37:33,011 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 20:37:33,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:37:33,012 INFO L85 PathProgramCache]: Analyzing trace with hash -438530293, now seen corresponding path program 1 times [2022-11-18 20:37:33,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:37:33,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46039475] [2022-11-18 20:37:33,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:37:33,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:37:33,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:33,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 20:37:33,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:33,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 20:37:33,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:33,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-18 20:37:33,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:33,192 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-18 20:37:33,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:37:33,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46039475] [2022-11-18 20:37:33,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46039475] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:37:33,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [552824638] [2022-11-18 20:37:33,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:37:33,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:37:33,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:37:33,194 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:37:33,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-18 20:37:33,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:33,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-18 20:37:33,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:37:33,456 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-18 20:37:33,456 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:37:33,589 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-18 20:37:33,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [552824638] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:37:33,589 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:37:33,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 9] total 17 [2022-11-18 20:37:33,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023512603] [2022-11-18 20:37:33,590 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:37:33,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-18 20:37:33,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:37:33,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-18 20:37:33,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-18 20:37:33,592 INFO L87 Difference]: Start difference. First operand 65 states and 76 transitions. Second operand has 17 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 16 states have internal predecessors, (57), 6 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2022-11-18 20:37:33,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:37:33,991 INFO L93 Difference]: Finished difference Result 214 states and 241 transitions. [2022-11-18 20:37:33,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-18 20:37:33,992 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 16 states have internal predecessors, (57), 6 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 39 [2022-11-18 20:37:33,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:37:33,993 INFO L225 Difference]: With dead ends: 214 [2022-11-18 20:37:33,993 INFO L226 Difference]: Without dead ends: 175 [2022-11-18 20:37:33,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 68 SyntacticMatches, 4 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=101, Invalid=499, Unknown=0, NotChecked=0, Total=600 [2022-11-18 20:37:33,995 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 230 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:37:33,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 557 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:37:33,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2022-11-18 20:37:34,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 88. [2022-11-18 20:37:34,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 74 states have (on average 1.2432432432432432) internal successors, (92), 77 states have internal predecessors, (92), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (10), 9 states have call predecessors, (10), 5 states have call successors, (10) [2022-11-18 20:37:34,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 107 transitions. [2022-11-18 20:37:34,014 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 107 transitions. Word has length 39 [2022-11-18 20:37:34,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:37:34,015 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 107 transitions. [2022-11-18 20:37:34,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 16 states have internal predecessors, (57), 6 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2022-11-18 20:37:34,016 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 107 transitions. [2022-11-18 20:37:34,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-18 20:37:34,017 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:37:34,017 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:37:34,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-18 20:37:34,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-18 20:37:34,223 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 20:37:34,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:37:34,223 INFO L85 PathProgramCache]: Analyzing trace with hash -264908981, now seen corresponding path program 1 times [2022-11-18 20:37:34,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:37:34,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595697152] [2022-11-18 20:37:34,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:37:34,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:37:34,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:34,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 20:37:34,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:34,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 20:37:34,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:34,322 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-18 20:37:34,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:37:34,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595697152] [2022-11-18 20:37:34,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595697152] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:37:34,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [699109788] [2022-11-18 20:37:34,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:37:34,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:37:34,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:37:34,325 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:37:34,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-18 20:37:34,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:34,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-18 20:37:34,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:37:34,574 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-18 20:37:34,574 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:37:34,686 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-18 20:37:34,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [699109788] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:37:34,686 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:37:34,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 9] total 17 [2022-11-18 20:37:34,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691940534] [2022-11-18 20:37:34,687 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:37:34,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-18 20:37:34,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:37:34,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-18 20:37:34,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-18 20:37:34,689 INFO L87 Difference]: Start difference. First operand 88 states and 107 transitions. Second operand has 17 states, 17 states have (on average 3.588235294117647) internal successors, (61), 16 states have internal predecessors, (61), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-18 20:37:34,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:37:34,944 INFO L93 Difference]: Finished difference Result 113 states and 133 transitions. [2022-11-18 20:37:34,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 20:37:34,944 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.588235294117647) internal successors, (61), 16 states have internal predecessors, (61), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 38 [2022-11-18 20:37:34,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:37:34,945 INFO L225 Difference]: With dead ends: 113 [2022-11-18 20:37:34,945 INFO L226 Difference]: Without dead ends: 85 [2022-11-18 20:37:34,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 65 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=95, Invalid=457, Unknown=0, NotChecked=0, Total=552 [2022-11-18 20:37:34,949 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 54 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:37:34,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 509 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:37:34,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2022-11-18 20:37:34,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 80. [2022-11-18 20:37:34,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 67 states have (on average 1.2388059701492538) internal successors, (83), 71 states have internal predecessors, (83), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (8), 7 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-18 20:37:34,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 95 transitions. [2022-11-18 20:37:34,964 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 95 transitions. Word has length 38 [2022-11-18 20:37:34,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:37:34,965 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 95 transitions. [2022-11-18 20:37:34,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.588235294117647) internal successors, (61), 16 states have internal predecessors, (61), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-18 20:37:34,965 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 95 transitions. [2022-11-18 20:37:34,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-18 20:37:34,966 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:37:34,966 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:37:34,973 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-18 20:37:35,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:37:35,173 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 20:37:35,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:37:35,173 INFO L85 PathProgramCache]: Analyzing trace with hash 188115878, now seen corresponding path program 1 times [2022-11-18 20:37:35,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:37:35,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131800799] [2022-11-18 20:37:35,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:37:35,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:37:35,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:35,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 20:37:35,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:35,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 20:37:35,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:35,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 20:37:35,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:35,352 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-18 20:37:35,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:37:35,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131800799] [2022-11-18 20:37:35,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131800799] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:37:35,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1056945806] [2022-11-18 20:37:35,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:37:35,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:37:35,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:37:35,355 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:37:35,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-18 20:37:35,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:35,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:37:35,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:37:35,504 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-18 20:37:35,505 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:37:35,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1056945806] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:37:35,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:37:35,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2022-11-18 20:37:35,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998399761] [2022-11-18 20:37:35,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:37:35,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:37:35,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:37:35,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:37:35,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:37:35,507 INFO L87 Difference]: Start difference. First operand 80 states and 95 transitions. Second operand has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-18 20:37:35,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:37:35,566 INFO L93 Difference]: Finished difference Result 95 states and 110 transitions. [2022-11-18 20:37:35,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:37:35,567 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 43 [2022-11-18 20:37:35,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:37:35,568 INFO L225 Difference]: With dead ends: 95 [2022-11-18 20:37:35,568 INFO L226 Difference]: Without dead ends: 93 [2022-11-18 20:37:35,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:37:35,569 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 37 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:37:35,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 144 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:37:35,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-11-18 20:37:35,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 78. [2022-11-18 20:37:35,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 67 states have (on average 1.208955223880597) internal successors, (81), 69 states have internal predecessors, (81), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (8), 7 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-18 20:37:35,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 93 transitions. [2022-11-18 20:37:35,582 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 93 transitions. Word has length 43 [2022-11-18 20:37:35,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:37:35,583 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 93 transitions. [2022-11-18 20:37:35,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-18 20:37:35,583 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 93 transitions. [2022-11-18 20:37:35,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-18 20:37:35,584 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:37:35,584 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:37:35,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-18 20:37:35,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-18 20:37:35,790 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 20:37:35,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:37:35,790 INFO L85 PathProgramCache]: Analyzing trace with hash 116900379, now seen corresponding path program 1 times [2022-11-18 20:37:35,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:37:35,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341001738] [2022-11-18 20:37:35,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:37:35,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:37:35,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:35,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 20:37:35,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:35,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 20:37:35,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:35,894 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-18 20:37:35,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:37:35,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341001738] [2022-11-18 20:37:35,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341001738] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:37:35,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [638061439] [2022-11-18 20:37:35,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:37:35,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:37:35,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:37:35,897 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:37:35,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-18 20:37:36,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:36,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 20:37:36,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:37:36,049 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-18 20:37:36,049 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:37:36,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [638061439] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:37:36,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:37:36,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2022-11-18 20:37:36,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078656826] [2022-11-18 20:37:36,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:37:36,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:37:36,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:37:36,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:37:36,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:37:36,052 INFO L87 Difference]: Start difference. First operand 78 states and 93 transitions. Second operand has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 20:37:36,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:37:36,095 INFO L93 Difference]: Finished difference Result 78 states and 93 transitions. [2022-11-18 20:37:36,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:37:36,096 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 43 [2022-11-18 20:37:36,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:37:36,097 INFO L225 Difference]: With dead ends: 78 [2022-11-18 20:37:36,097 INFO L226 Difference]: Without dead ends: 77 [2022-11-18 20:37:36,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:37:36,098 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 7 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:37:36,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 169 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:37:36,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-11-18 20:37:36,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2022-11-18 20:37:36,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 67 states have (on average 1.1940298507462686) internal successors, (80), 68 states have internal predecessors, (80), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (8), 7 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-18 20:37:36,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 92 transitions. [2022-11-18 20:37:36,110 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 92 transitions. Word has length 43 [2022-11-18 20:37:36,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:37:36,111 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 92 transitions. [2022-11-18 20:37:36,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 20:37:36,111 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 92 transitions. [2022-11-18 20:37:36,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-18 20:37:36,112 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:37:36,112 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:37:36,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-18 20:37:36,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:37:36,323 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 20:37:36,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:37:36,323 INFO L85 PathProgramCache]: Analyzing trace with hash -772088500, now seen corresponding path program 1 times [2022-11-18 20:37:36,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:37:36,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667710092] [2022-11-18 20:37:36,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:37:36,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:37:36,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:36,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 20:37:36,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:36,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 20:37:36,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:36,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 20:37:36,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:36,460 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-18 20:37:36,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:37:36,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667710092] [2022-11-18 20:37:36,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667710092] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:37:36,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [189487165] [2022-11-18 20:37:36,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:37:36,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:37:36,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:37:36,463 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:37:36,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-18 20:37:36,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:36,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 20:37:36,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:37:36,665 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-18 20:37:36,666 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:37:36,767 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-18 20:37:36,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [189487165] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:37:36,768 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:37:36,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 14 [2022-11-18 20:37:36,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513302256] [2022-11-18 20:37:36,768 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:37:36,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-18 20:37:36,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:37:36,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-18 20:37:36,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2022-11-18 20:37:36,770 INFO L87 Difference]: Start difference. First operand 77 states and 92 transitions. Second operand has 15 states, 14 states have (on average 3.857142857142857) internal successors, (54), 14 states have internal predecessors, (54), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-18 20:37:37,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:37:37,019 INFO L93 Difference]: Finished difference Result 140 states and 157 transitions. [2022-11-18 20:37:37,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-18 20:37:37,020 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.857142857142857) internal successors, (54), 14 states have internal predecessors, (54), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 46 [2022-11-18 20:37:37,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:37:37,021 INFO L225 Difference]: With dead ends: 140 [2022-11-18 20:37:37,021 INFO L226 Difference]: Without dead ends: 139 [2022-11-18 20:37:37,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=128, Invalid=472, Unknown=0, NotChecked=0, Total=600 [2022-11-18 20:37:37,022 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 99 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:37:37,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 428 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:37:37,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2022-11-18 20:37:37,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 76. [2022-11-18 20:37:37,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 67 states have (on average 1.1791044776119404) internal successors, (79), 67 states have internal predecessors, (79), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (8), 7 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-18 20:37:37,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 91 transitions. [2022-11-18 20:37:37,037 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 91 transitions. Word has length 46 [2022-11-18 20:37:37,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:37:37,037 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 91 transitions. [2022-11-18 20:37:37,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.857142857142857) internal successors, (54), 14 states have internal predecessors, (54), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-18 20:37:37,037 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 91 transitions. [2022-11-18 20:37:37,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-18 20:37:37,039 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:37:37,039 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:37:37,050 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-18 20:37:37,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-18 20:37:37,246 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 20:37:37,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:37:37,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1835060394, now seen corresponding path program 1 times [2022-11-18 20:37:37,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:37:37,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349787469] [2022-11-18 20:37:37,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:37:37,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:37:37,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:37,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 20:37:37,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:37,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 20:37:37,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:37,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 20:37:37,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:37,342 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-18 20:37:37,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:37:37,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349787469] [2022-11-18 20:37:37,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349787469] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:37:37,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:37:37,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:37:37,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87152383] [2022-11-18 20:37:37,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:37:37,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:37:37,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:37:37,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:37:37,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:37:37,346 INFO L87 Difference]: Start difference. First operand 76 states and 91 transitions. Second operand has 5 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 20:37:37,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:37:37,383 INFO L93 Difference]: Finished difference Result 76 states and 91 transitions. [2022-11-18 20:37:37,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:37:37,384 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 47 [2022-11-18 20:37:37,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:37:37,385 INFO L225 Difference]: With dead ends: 76 [2022-11-18 20:37:37,385 INFO L226 Difference]: Without dead ends: 75 [2022-11-18 20:37:37,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:37:37,388 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 5 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:37:37,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 165 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:37:37,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-11-18 20:37:37,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2022-11-18 20:37:37,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 67 states have (on average 1.164179104477612) internal successors, (78), 66 states have internal predecessors, (78), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (8), 7 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-18 20:37:37,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 90 transitions. [2022-11-18 20:37:37,401 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 90 transitions. Word has length 47 [2022-11-18 20:37:37,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:37:37,402 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 90 transitions. [2022-11-18 20:37:37,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 20:37:37,402 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 90 transitions. [2022-11-18 20:37:37,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-18 20:37:37,403 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:37:37,403 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:37:37,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-18 20:37:37,406 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 20:37:37,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:37:37,407 INFO L85 PathProgramCache]: Analyzing trace with hash -639155125, now seen corresponding path program 2 times [2022-11-18 20:37:37,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:37:37,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674264329] [2022-11-18 20:37:37,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:37:37,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:37:37,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:37,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 20:37:37,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:37,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 20:37:37,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:37,654 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-18 20:37:37,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:37:37,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674264329] [2022-11-18 20:37:37,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674264329] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:37:37,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1031880751] [2022-11-18 20:37:37,655 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:37:37,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:37:37,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:37:37,656 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:37:37,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-18 20:37:37,787 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 20:37:37,787 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:37:37,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 20:37:37,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:37:37,941 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-18 20:37:37,942 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:37:38,072 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-18 20:37:38,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1031880751] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:37:38,073 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:37:38,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 7, 7] total 20 [2022-11-18 20:37:38,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921662610] [2022-11-18 20:37:38,074 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:37:38,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-18 20:37:38,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:37:38,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-18 20:37:38,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2022-11-18 20:37:38,076 INFO L87 Difference]: Start difference. First operand 75 states and 90 transitions. Second operand has 20 states, 20 states have (on average 3.4) internal successors, (68), 19 states have internal predecessors, (68), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-18 20:37:38,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:37:38,602 INFO L93 Difference]: Finished difference Result 135 states and 164 transitions. [2022-11-18 20:37:38,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-18 20:37:38,603 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.4) internal successors, (68), 19 states have internal predecessors, (68), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 46 [2022-11-18 20:37:38,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:37:38,605 INFO L225 Difference]: With dead ends: 135 [2022-11-18 20:37:38,605 INFO L226 Difference]: Without dead ends: 86 [2022-11-18 20:37:38,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 86 SyntacticMatches, 5 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=242, Invalid=1018, Unknown=0, NotChecked=0, Total=1260 [2022-11-18 20:37:38,607 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 197 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:37:38,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 530 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:37:38,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-11-18 20:37:38,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 43. [2022-11-18 20:37:38,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 37 states have (on average 1.1081081081081081) internal successors, (41), 37 states have internal predecessors, (41), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-18 20:37:38,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 49 transitions. [2022-11-18 20:37:38,620 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 49 transitions. Word has length 46 [2022-11-18 20:37:38,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:37:38,620 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 49 transitions. [2022-11-18 20:37:38,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.4) internal successors, (68), 19 states have internal predecessors, (68), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-18 20:37:38,621 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 49 transitions. [2022-11-18 20:37:38,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-18 20:37:38,621 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:37:38,621 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:37:38,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-18 20:37:38,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:37:38,827 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 20:37:38,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:37:38,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1789186366, now seen corresponding path program 2 times [2022-11-18 20:37:38,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:37:38,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450671786] [2022-11-18 20:37:38,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:37:38,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:37:38,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:39,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 20:37:39,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:39,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 20:37:39,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:39,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 20:37:39,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:39,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-18 20:37:39,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:39,140 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 11 proven. 14 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-18 20:37:39,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:37:39,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450671786] [2022-11-18 20:37:39,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450671786] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:37:39,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1157776230] [2022-11-18 20:37:39,141 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:37:39,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:37:39,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:37:39,143 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:37:39,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-18 20:37:39,302 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:37:39,303 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:37:39,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 20:37:39,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:37:39,438 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-18 20:37:39,438 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:37:39,588 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-18 20:37:39,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1157776230] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:37:39,588 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:37:39,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 7, 7] total 26 [2022-11-18 20:37:39,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769432635] [2022-11-18 20:37:39,588 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:37:39,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-18 20:37:39,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:37:39,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-18 20:37:39,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=554, Unknown=0, NotChecked=0, Total=650 [2022-11-18 20:37:39,590 INFO L87 Difference]: Start difference. First operand 43 states and 49 transitions. Second operand has 26 states, 26 states have (on average 3.076923076923077) internal successors, (80), 25 states have internal predecessors, (80), 10 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-18 20:37:40,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:37:40,058 INFO L93 Difference]: Finished difference Result 109 states and 136 transitions. [2022-11-18 20:37:40,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-18 20:37:40,059 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.076923076923077) internal successors, (80), 25 states have internal predecessors, (80), 10 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Word has length 54 [2022-11-18 20:37:40,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:37:40,060 INFO L225 Difference]: With dead ends: 109 [2022-11-18 20:37:40,060 INFO L226 Difference]: Without dead ends: 81 [2022-11-18 20:37:40,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=265, Invalid=1295, Unknown=0, NotChecked=0, Total=1560 [2022-11-18 20:37:40,061 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 80 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:37:40,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 329 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:37:40,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2022-11-18 20:37:40,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 75. [2022-11-18 20:37:40,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 65 states have (on average 1.0615384615384615) internal successors, (69), 65 states have internal predecessors, (69), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-18 20:37:40,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 85 transitions. [2022-11-18 20:37:40,075 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 85 transitions. Word has length 54 [2022-11-18 20:37:40,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:37:40,075 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 85 transitions. [2022-11-18 20:37:40,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.076923076923077) internal successors, (80), 25 states have internal predecessors, (80), 10 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-18 20:37:40,076 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 85 transitions. [2022-11-18 20:37:40,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-11-18 20:37:40,080 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:37:40,080 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:37:40,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-18 20:37:40,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:37:40,286 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 20:37:40,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:37:40,287 INFO L85 PathProgramCache]: Analyzing trace with hash 999148802, now seen corresponding path program 3 times [2022-11-18 20:37:40,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:37:40,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837438363] [2022-11-18 20:37:40,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:37:40,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:37:40,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:40,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 20:37:40,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:40,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-11-18 20:37:40,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:40,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 20:37:40,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:40,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-18 20:37:40,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:40,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-18 20:37:40,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:40,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-18 20:37:40,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:40,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 20:37:40,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:40,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-18 20:37:40,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:40,743 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2022-11-18 20:37:40,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:37:40,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837438363] [2022-11-18 20:37:40,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837438363] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:37:40,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [966343395] [2022-11-18 20:37:40,745 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 20:37:40,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:37:40,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:37:40,746 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:37:40,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-18 20:37:40,972 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-11-18 20:37:40,973 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:37:40,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 20:37:40,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:37:41,130 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2022-11-18 20:37:41,130 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:37:41,310 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2022-11-18 20:37:41,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [966343395] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:37:41,311 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:37:41,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 5, 5] total 23 [2022-11-18 20:37:41,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882888591] [2022-11-18 20:37:41,312 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:37:41,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-18 20:37:41,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:37:41,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-18 20:37:41,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=480, Unknown=0, NotChecked=0, Total=552 [2022-11-18 20:37:41,313 INFO L87 Difference]: Start difference. First operand 75 states and 85 transitions. Second operand has 24 states, 23 states have (on average 3.5652173913043477) internal successors, (82), 23 states have internal predecessors, (82), 10 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-18 20:37:41,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:37:41,782 INFO L93 Difference]: Finished difference Result 133 states and 166 transitions. [2022-11-18 20:37:41,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-18 20:37:41,786 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 3.5652173913043477) internal successors, (82), 23 states have internal predecessors, (82), 10 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Word has length 102 [2022-11-18 20:37:41,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:37:41,786 INFO L225 Difference]: With dead ends: 133 [2022-11-18 20:37:41,786 INFO L226 Difference]: Without dead ends: 0 [2022-11-18 20:37:41,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=303, Invalid=1419, Unknown=0, NotChecked=0, Total=1722 [2022-11-18 20:37:41,788 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 78 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:37:41,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 224 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:37:41,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-18 20:37:41,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-18 20:37:41,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:37:41,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-18 20:37:41,790 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 102 [2022-11-18 20:37:41,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:37:41,790 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 20:37:41,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 3.5652173913043477) internal successors, (82), 23 states have internal predecessors, (82), 10 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-18 20:37:41,791 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-18 20:37:41,791 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-18 20:37:41,794 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-11-18 20:37:41,794 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2022-11-18 20:37:41,794 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2022-11-18 20:37:41,795 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-11-18 20:37:41,795 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2022-11-18 20:37:41,795 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2022-11-18 20:37:41,795 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-11-18 20:37:41,795 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-11-18 20:37:41,796 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-11-18 20:37:41,796 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-11-18 20:37:41,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-18 20:37:42,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-11-18 20:37:42,004 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-18 20:38:35,720 WARN L233 SmtUtils]: Spent 53.07s on a formula simplification. DAG size of input: 155 DAG size of output: 149 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-18 20:38:43,832 WARN L233 SmtUtils]: Spent 7.99s on a formula simplification. DAG size of input: 89 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-18 20:38:46,007 INFO L895 garLoopResultBuilder]: At program point ldv_mallocENTRY(lines 525 531) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2022-11-18 20:38:46,008 INFO L899 garLoopResultBuilder]: For program point L526(lines 526 530) no Hoare annotation was computed. [2022-11-18 20:38:46,008 INFO L899 garLoopResultBuilder]: For program point ldv_mallocFINAL(lines 525 531) no Hoare annotation was computed. [2022-11-18 20:38:46,008 INFO L899 garLoopResultBuilder]: For program point ldv_mallocEXIT(lines 525 531) no Hoare annotation was computed. [2022-11-18 20:38:46,008 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 765) no Hoare annotation was computed. [2022-11-18 20:38:46,008 INFO L899 garLoopResultBuilder]: For program point L787(line 787) no Hoare annotation was computed. [2022-11-18 20:38:46,009 INFO L895 garLoopResultBuilder]: At program point L787-2(line 787) the Hoare annotation is: (and (<= |ULTIMATE.start_ldv_positive_~r~1#1| 2147483647) (< |ULTIMATE.start_entry_point_~len~0#1| 16777216) (<= 1 |ULTIMATE.start_entry_point_~len~0#1|) (<= |ULTIMATE.start_ldv_positive_#res#1| 2147483647) (<= 1 |ULTIMATE.start_ldv_positive_#res#1|)) [2022-11-18 20:38:46,009 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 772) no Hoare annotation was computed. [2022-11-18 20:38:46,009 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 790) no Hoare annotation was computed. [2022-11-18 20:38:46,009 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-18 20:38:46,009 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-18 20:38:46,009 INFO L899 garLoopResultBuilder]: For program point L788(line 788) no Hoare annotation was computed. [2022-11-18 20:38:46,010 INFO L899 garLoopResultBuilder]: For program point L780-2(lines 780 782) no Hoare annotation was computed. [2022-11-18 20:38:46,010 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 780) no Hoare annotation was computed. [2022-11-18 20:38:46,010 INFO L899 garLoopResultBuilder]: For program point L780-3(line 780) no Hoare annotation was computed. [2022-11-18 20:38:46,010 INFO L899 garLoopResultBuilder]: For program point L780-4(line 780) no Hoare annotation was computed. [2022-11-18 20:38:46,010 INFO L895 garLoopResultBuilder]: At program point L780-5(lines 780 782) the Hoare annotation is: (let ((.cse8 (= |ULTIMATE.start_free_17_~i~1#1| 0)) (.cse10 (<= |ULTIMATE.start_free_17_~len#1| 1)) (.cse11 (<= |ULTIMATE.start_entry_point_~len~0#1| 1)) (.cse12 (<= |ULTIMATE.start_entry_point_~i~2#1| 1)) (.cse13 (<= 1 |ULTIMATE.start_free_17_~i~1#1|)) (.cse0 (<= 0 |ULTIMATE.start_entry_point_~i~2#1|)) (.cse1 (<= 0 |ULTIMATE.start_alloc_17_~i~0#1|)) (.cse2 (<= |ULTIMATE.start_alloc_17_~i~0#1| 2147483647)) (.cse3 (<= |ULTIMATE.start_ldv_positive_~r~1#1| 2147483647)) (.cse4 (<= |ULTIMATE.start_entry_point_~len~0#1| 2147483647)) (.cse5 (<= 1 |ULTIMATE.start_entry_point_~len~0#1|)) (.cse6 (<= |ULTIMATE.start_free_17_~len#1| 2147483647)) (.cse7 (<= |ULTIMATE.start_ldv_positive_#res#1| 2147483647)) (.cse9 (<= 1 |ULTIMATE.start_ldv_positive_#res#1|))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9) (and .cse0 .cse10 .cse2 .cse3 .cse4 .cse11 .cse5 .cse7 .cse8 .cse12 .cse9) (and .cse13 .cse0 .cse10 .cse2 .cse3 .cse4 .cse11 .cse5 .cse7 (<= |ULTIMATE.start_free_17_~i~1#1| 1) .cse12 .cse9) (and .cse13 .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse9))) [2022-11-18 20:38:46,011 INFO L899 garLoopResultBuilder]: For program point L772(line 772) no Hoare annotation was computed. [2022-11-18 20:38:46,011 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 790) no Hoare annotation was computed. [2022-11-18 20:38:46,011 INFO L899 garLoopResultBuilder]: For program point L772-3(lines 772 775) no Hoare annotation was computed. [2022-11-18 20:38:46,011 INFO L899 garLoopResultBuilder]: For program point L772-4(line 772) no Hoare annotation was computed. [2022-11-18 20:38:46,011 INFO L899 garLoopResultBuilder]: For program point L772-5(line 772) no Hoare annotation was computed. [2022-11-18 20:38:46,012 INFO L895 garLoopResultBuilder]: At program point L772-6(lines 772 775) the Hoare annotation is: (let ((.cse0 (<= 0 |ULTIMATE.start_entry_point_~i~2#1|)) (.cse1 (<= |ULTIMATE.start_ldv_positive_~r~1#1| 2147483647)) (.cse2 (<= |ULTIMATE.start_entry_point_~len~0#1| 2147483647)) (.cse3 (<= 1 |ULTIMATE.start_entry_point_~len~0#1|)) (.cse4 (<= |ULTIMATE.start_ldv_positive_#res#1| 2147483647)) (.cse5 (<= 1 |ULTIMATE.start_ldv_positive_#res#1|))) (or (and .cse0 .cse1 (= |ULTIMATE.start_alloc_17_~i~0#1| 0) .cse2 (<= (+ |ULTIMATE.start_alloc_17_~j~0#1| 1) 0) .cse3 .cse4 .cse5) (and .cse0 (<= |ULTIMATE.start_alloc_17_~i~0#1| 2147483647) .cse1 .cse2 (<= 1 |ULTIMATE.start_alloc_17_~i~0#1|) .cse3 (< |ULTIMATE.start_alloc_17_~j~0#1| 2147483649) .cse4 .cse5))) [2022-11-18 20:38:46,012 INFO L899 garLoopResultBuilder]: For program point L772-7(lines 772 775) no Hoare annotation was computed. [2022-11-18 20:38:46,012 INFO L899 garLoopResultBuilder]: For program point L789(lines 789 796) no Hoare annotation was computed. [2022-11-18 20:38:46,012 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 780) no Hoare annotation was computed. [2022-11-18 20:38:46,012 INFO L899 garLoopResultBuilder]: For program point L798(lines 798 800) no Hoare annotation was computed. [2022-11-18 20:38:46,012 INFO L899 garLoopResultBuilder]: For program point L765-2(lines 765 769) no Hoare annotation was computed. [2022-11-18 20:38:46,013 INFO L899 garLoopResultBuilder]: For program point L765-3(line 765) no Hoare annotation was computed. [2022-11-18 20:38:46,013 INFO L899 garLoopResultBuilder]: For program point L765-4(line 765) no Hoare annotation was computed. [2022-11-18 20:38:46,013 INFO L895 garLoopResultBuilder]: At program point L765-5(lines 765 769) the Hoare annotation is: (let ((.cse0 (<= 0 |ULTIMATE.start_entry_point_~i~2#1|)) (.cse1 (<= |ULTIMATE.start_ldv_positive_~r~1#1| 2147483647)) (.cse2 (< |ULTIMATE.start_entry_point_~len~0#1| 16777216)) (.cse3 (<= 1 |ULTIMATE.start_entry_point_~len~0#1|)) (.cse4 (<= |ULTIMATE.start_ldv_positive_#res#1| 2147483647)) (.cse5 (<= |ULTIMATE.start_alloc_17_~len#1| 16777215)) (.cse6 (<= 1 |ULTIMATE.start_ldv_positive_#res#1|))) (or (and .cse0 .cse1 (= |ULTIMATE.start_alloc_17_~i~0#1| 0) .cse2 .cse3 .cse4 (<= 1 |ULTIMATE.start_alloc_17_~len#1|) .cse5 .cse6) (and .cse0 .cse1 (<= 1 |ULTIMATE.start_alloc_17_~i~0#1|) .cse2 .cse3 (< |ULTIMATE.start_alloc_17_~i~0#1| 2147483647) .cse4 .cse5 .cse6))) [2022-11-18 20:38:46,013 INFO L899 garLoopResultBuilder]: For program point L765-6(lines 765 769) no Hoare annotation was computed. [2022-11-18 20:38:46,013 INFO L899 garLoopResultBuilder]: For program point L790-2(lines 790 792) no Hoare annotation was computed. [2022-11-18 20:38:46,013 INFO L899 garLoopResultBuilder]: For program point L790-3(line 790) no Hoare annotation was computed. [2022-11-18 20:38:46,014 INFO L899 garLoopResultBuilder]: For program point L790-4(line 790) no Hoare annotation was computed. [2022-11-18 20:38:46,014 INFO L895 garLoopResultBuilder]: At program point L790-5(lines 790 792) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_ldv_positive_~r~1#1| 2147483647)) (.cse1 (< |ULTIMATE.start_entry_point_~len~0#1| 16777216)) (.cse2 (<= 1 |ULTIMATE.start_entry_point_~len~0#1|)) (.cse3 (<= |ULTIMATE.start_ldv_positive_#res#1| 2147483647)) (.cse4 (<= 1 |ULTIMATE.start_ldv_positive_#res#1|))) (or (and (<= 1 |ULTIMATE.start_entry_point_~i~2#1|) .cse0 .cse1 .cse2 .cse3 .cse4) (and (= |ULTIMATE.start_entry_point_~i~2#1| 0) .cse0 .cse1 .cse2 .cse3 .cse4))) [2022-11-18 20:38:46,014 INFO L899 garLoopResultBuilder]: For program point L790-6(lines 790 792) no Hoare annotation was computed. [2022-11-18 20:38:46,014 INFO L895 garLoopResultBuilder]: At program point L766(line 766) the Hoare annotation is: (let ((.cse0 (<= 0 |ULTIMATE.start_entry_point_~i~2#1|)) (.cse1 (<= |ULTIMATE.start_ldv_positive_~r~1#1| 2147483647)) (.cse2 (< |ULTIMATE.start_entry_point_~len~0#1| 16777216)) (.cse3 (<= 1 |ULTIMATE.start_entry_point_~len~0#1|)) (.cse4 (<= |ULTIMATE.start_ldv_positive_#res#1| 2147483647)) (.cse5 (<= |ULTIMATE.start_alloc_17_~len#1| 16777215)) (.cse6 (<= 1 |ULTIMATE.start_ldv_positive_#res#1|))) (or (and .cse0 .cse1 (= |ULTIMATE.start_alloc_17_~i~0#1| 0) .cse2 .cse3 .cse4 (<= 1 |ULTIMATE.start_alloc_17_~len#1|) .cse5 .cse6) (and .cse0 .cse1 (<= 1 |ULTIMATE.start_alloc_17_~i~0#1|) .cse2 .cse3 .cse4 .cse5 (<= |ULTIMATE.start_alloc_17_~i~0#1| 16777214) .cse6))) [2022-11-18 20:38:46,014 INFO L899 garLoopResultBuilder]: For program point L766-1(line 766) no Hoare annotation was computed. [2022-11-18 20:38:46,015 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-18 20:38:46,015 INFO L899 garLoopResultBuilder]: For program point L767(line 767) no Hoare annotation was computed. [2022-11-18 20:38:46,015 INFO L895 garLoopResultBuilder]: At program point L767-1(lines 761 777) the Hoare annotation is: (let ((.cse0 (<= 0 |ULTIMATE.start_entry_point_~i~2#1|)) (.cse1 (<= |ULTIMATE.start_ldv_positive_~r~1#1| 2147483647)) (.cse2 (<= |ULTIMATE.start_entry_point_~len~0#1| 2147483647)) (.cse3 (<= 1 |ULTIMATE.start_entry_point_~len~0#1|)) (.cse4 (<= |ULTIMATE.start_ldv_positive_#res#1| 2147483647)) (.cse5 (<= 1 |ULTIMATE.start_ldv_positive_#res#1|))) (or (and .cse0 (<= |ULTIMATE.start_alloc_17_~i~0#1| 2147483647) .cse1 .cse2 (<= 1 |ULTIMATE.start_alloc_17_~i~0#1|) .cse3 .cse4 .cse5) (and .cse0 .cse1 (= |ULTIMATE.start_alloc_17_~i~0#1| 0) .cse2 .cse3 .cse4 (<= 1 |ULTIMATE.start_alloc_17_~len#1|) .cse5))) [2022-11-18 20:38:46,015 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 772) no Hoare annotation was computed. [2022-11-18 20:38:46,015 INFO L899 garLoopResultBuilder]: For program point L784(lines 784 797) no Hoare annotation was computed. [2022-11-18 20:38:46,016 INFO L899 garLoopResultBuilder]: For program point L520(lines 520 521) no Hoare annotation was computed. [2022-11-18 20:38:46,016 INFO L895 garLoopResultBuilder]: At program point L776(lines 761 777) the Hoare annotation is: (let ((.cse0 (<= 0 |ULTIMATE.start_entry_point_~i~2#1|)) (.cse1 (<= |ULTIMATE.start_alloc_17_~i~0#1| 2147483647)) (.cse2 (<= |ULTIMATE.start_ldv_positive_~r~1#1| 2147483647)) (.cse3 (<= |ULTIMATE.start_entry_point_~len~0#1| 2147483647)) (.cse4 (<= 1 |ULTIMATE.start_entry_point_~len~0#1|)) (.cse5 (<= |ULTIMATE.start_ldv_positive_#res#1| 2147483647)) (.cse6 (<= 1 |ULTIMATE.start_ldv_positive_#res#1|))) (or (and .cse0 .cse1 .cse2 .cse3 (<= |ULTIMATE.start_entry_point_~len~0#1| 1) .cse4 .cse5 (<= |ULTIMATE.start_entry_point_~i~2#1| 1) .cse6) (and .cse0 (<= 0 |ULTIMATE.start_alloc_17_~i~0#1|) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6))) [2022-11-18 20:38:46,016 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-18 20:38:46,016 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 772) no Hoare annotation was computed. [2022-11-18 20:38:46,016 INFO L895 garLoopResultBuilder]: At program point L521(lines 518 522) the Hoare annotation is: (and (<= |ULTIMATE.start_ldv_positive_~r~1#1| 2147483647) (<= |ULTIMATE.start_ldv_positive_#res#1| 2147483647) (<= 1 |ULTIMATE.start_ldv_positive_#res#1|)) [2022-11-18 20:38:46,017 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 765) no Hoare annotation was computed. [2022-11-18 20:38:46,017 INFO L899 garLoopResultBuilder]: For program point L778(lines 778 783) no Hoare annotation was computed. [2022-11-18 20:38:46,017 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 772) no Hoare annotation was computed. [2022-11-18 20:38:46,020 INFO L444 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:38:46,023 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:38:46,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:38:46 BoogieIcfgContainer [2022-11-18 20:38:46,054 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:38:46,055 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:38:46,055 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:38:46,055 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:38:46,055 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:37:26" (3/4) ... [2022-11-18 20:38:46,069 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 20:38:46,075 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2022-11-18 20:38:46,080 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-18 20:38:46,081 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-18 20:38:46,081 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 20:38:46,107 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (r <= 2147483647 && \result <= 2147483647) && 1 <= \result [2022-11-18 20:38:46,107 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1 <= i && r <= 2147483647) && len < 16777216) && 1 <= len) && \result <= 2147483647) && 1 <= \result) || (((((i == 0 && r <= 2147483647) && len < 16777216) && 1 <= len) && \result <= 2147483647) && 1 <= \result) [2022-11-18 20:38:46,108 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((0 <= i && i <= 2147483647) && r <= 2147483647) && len <= 2147483647) && 1 <= i) && 1 <= len) && \result <= 2147483647) && 1 <= \result) || (((((((0 <= i && r <= 2147483647) && i == 0) && len <= 2147483647) && 1 <= len) && \result <= 2147483647) && 1 <= len) && 1 <= \result) [2022-11-18 20:38:46,109 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((0 <= i && r <= 2147483647) && i == 0) && len <= 2147483647) && j + 1 <= 0) && 1 <= len) && \result <= 2147483647) && 1 <= \result) || ((((((((0 <= i && i <= 2147483647) && r <= 2147483647) && len <= 2147483647) && 1 <= i) && 1 <= len) && j < 2147483649) && \result <= 2147483647) && 1 <= \result) [2022-11-18 20:38:46,109 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((0 <= i && r <= 2147483647) && i == 0) && len < 16777216) && 1 <= len) && \result <= 2147483647) && 1 <= len) && len <= 16777215) && 1 <= \result) || ((((((((0 <= i && r <= 2147483647) && 1 <= i) && len < 16777216) && 1 <= len) && i < 2147483647) && \result <= 2147483647) && len <= 16777215) && 1 <= \result) [2022-11-18 20:38:46,109 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((0 <= i && i <= 2147483647) && r <= 2147483647) && len <= 2147483647) && len <= 1) && 1 <= len) && \result <= 2147483647) && i <= 1) && 1 <= \result) || (((((((0 <= i && 0 <= i) && i <= 2147483647) && r <= 2147483647) && len <= 2147483647) && 1 <= len) && \result <= 2147483647) && 1 <= \result) [2022-11-18 20:38:46,110 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((0 <= i && 0 <= i) && i <= 2147483647) && r <= 2147483647) && len <= 2147483647) && 1 <= len) && len <= 2147483647) && \result <= 2147483647) && i == 0) && 1 <= \result) || ((((((((((0 <= i && len <= 1) && i <= 2147483647) && r <= 2147483647) && len <= 2147483647) && len <= 1) && 1 <= len) && \result <= 2147483647) && i == 0) && i <= 1) && 1 <= \result)) || (((((((((((1 <= i && 0 <= i) && len <= 1) && i <= 2147483647) && r <= 2147483647) && len <= 2147483647) && len <= 1) && 1 <= len) && \result <= 2147483647) && i <= 1) && i <= 1) && 1 <= \result)) || (((((((((1 <= i && 0 <= i) && 0 <= i) && i <= 2147483647) && r <= 2147483647) && len <= 2147483647) && 1 <= len) && len <= 2147483647) && \result <= 2147483647) && 1 <= \result) [2022-11-18 20:38:46,134 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 20:38:46,134 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:38:46,135 INFO L158 Benchmark]: Toolchain (without parser) took 81029.50ms. Allocated memory was 127.9MB in the beginning and 612.4MB in the end (delta: 484.4MB). Free memory was 82.8MB in the beginning and 291.4MB in the end (delta: -208.6MB). Peak memory consumption was 274.4MB. Max. memory is 16.1GB. [2022-11-18 20:38:46,136 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 127.9MB. Free memory is still 100.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:38:46,137 INFO L158 Benchmark]: CACSL2BoogieTranslator took 752.59ms. Allocated memory is still 127.9MB. Free memory was 82.5MB in the beginning and 89.2MB in the end (delta: -6.6MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. [2022-11-18 20:38:46,138 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.79ms. Allocated memory is still 127.9MB. Free memory was 89.2MB in the beginning and 86.7MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 20:38:46,138 INFO L158 Benchmark]: Boogie Preprocessor took 35.80ms. Allocated memory is still 127.9MB. Free memory was 86.7MB in the beginning and 85.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:38:46,138 INFO L158 Benchmark]: RCFGBuilder took 474.30ms. Allocated memory is still 127.9MB. Free memory was 85.3MB in the beginning and 70.7MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-18 20:38:46,139 INFO L158 Benchmark]: TraceAbstraction took 79602.64ms. Allocated memory was 127.9MB in the beginning and 612.4MB in the end (delta: 484.4MB). Free memory was 69.9MB in the beginning and 294.5MB in the end (delta: -224.6MB). Peak memory consumption was 343.1MB. Max. memory is 16.1GB. [2022-11-18 20:38:46,142 INFO L158 Benchmark]: Witness Printer took 79.90ms. Allocated memory is still 612.4MB. Free memory was 294.5MB in the beginning and 291.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:38:46,149 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 127.9MB. Free memory is still 100.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 752.59ms. Allocated memory is still 127.9MB. Free memory was 82.5MB in the beginning and 89.2MB in the end (delta: -6.6MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.79ms. Allocated memory is still 127.9MB. Free memory was 89.2MB in the beginning and 86.7MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.80ms. Allocated memory is still 127.9MB. Free memory was 86.7MB in the beginning and 85.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 474.30ms. Allocated memory is still 127.9MB. Free memory was 85.3MB in the beginning and 70.7MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 79602.64ms. Allocated memory was 127.9MB in the beginning and 612.4MB in the end (delta: 484.4MB). Free memory was 69.9MB in the beginning and 294.5MB in the end (delta: -224.6MB). Peak memory consumption was 343.1MB. Max. memory is 16.1GB. * Witness Printer took 79.90ms. Allocated memory is still 612.4MB. Free memory was 294.5MB in the beginning and 291.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 790]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 790]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 765]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 765]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 772]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 772]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 772]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 772]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 780]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 780]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 52 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 79.5s, OverallIterations: 22, TraceHistogramMax: 8, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 4.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 64.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2006 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1997 mSDsluCounter, 6286 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5080 mSDsCounter, 179 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2122 IncrementalHoareTripleChecker+Invalid, 2301 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 179 mSolverCounterUnsat, 1206 mSDtfsCounter, 2122 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1263 GetRequests, 937 SyntacticMatches, 17 SemanticMatches, 309 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1160 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=88occurred in iteration=14, InterpolantAutomatonStates: 225, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 22 MinimizatonAttempts, 771 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 33 PreInvPairs, 94 NumberOfFragments, 481 HoareAnnotationTreeSize, 33 FomulaSimplifications, 1345718 FormulaSimplificationTreeSizeReduction, 62.3s HoareSimplificationTime, 10 FomulaSimplificationsInter, 1187316 FormulaSimplificationTreeSizeReductionInter, 1.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 5.5s InterpolantComputationTime, 1340 NumberOfCodeBlocks, 1253 NumberOfCodeBlocksAsserted, 41 NumberOfCheckSat, 1671 ConstructedInterpolants, 0 QuantifiedInterpolants, 3565 SizeOfPredicates, 56 NumberOfNonLiveVariables, 2413 ConjunctsInSsa, 87 ConjunctsInUnsatCore, 44 InterpolantComputations, 14 PerfectInterpolantSequences, 1122/1442 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold - InvariantResult [Line: 765]: Loop Invariant Derived loop invariant: ((((((((0 <= i && r <= 2147483647) && i == 0) && len < 16777216) && 1 <= len) && \result <= 2147483647) && 1 <= len) && len <= 16777215) && 1 <= \result) || ((((((((0 <= i && r <= 2147483647) && 1 <= i) && len < 16777216) && 1 <= len) && i < 2147483647) && \result <= 2147483647) && len <= 16777215) && 1 <= \result) - InvariantResult [Line: 780]: Loop Invariant Derived loop invariant: (((((((((((0 <= i && 0 <= i) && i <= 2147483647) && r <= 2147483647) && len <= 2147483647) && 1 <= len) && len <= 2147483647) && \result <= 2147483647) && i == 0) && 1 <= \result) || ((((((((((0 <= i && len <= 1) && i <= 2147483647) && r <= 2147483647) && len <= 2147483647) && len <= 1) && 1 <= len) && \result <= 2147483647) && i == 0) && i <= 1) && 1 <= \result)) || (((((((((((1 <= i && 0 <= i) && len <= 1) && i <= 2147483647) && r <= 2147483647) && len <= 2147483647) && len <= 1) && 1 <= len) && \result <= 2147483647) && i <= 1) && i <= 1) && 1 <= \result)) || (((((((((1 <= i && 0 <= i) && 0 <= i) && i <= 2147483647) && r <= 2147483647) && len <= 2147483647) && 1 <= len) && len <= 2147483647) && \result <= 2147483647) && 1 <= \result) - InvariantResult [Line: 761]: Loop Invariant Derived loop invariant: (((((((0 <= i && i <= 2147483647) && r <= 2147483647) && len <= 2147483647) && 1 <= i) && 1 <= len) && \result <= 2147483647) && 1 <= \result) || (((((((0 <= i && r <= 2147483647) && i == 0) && len <= 2147483647) && 1 <= len) && \result <= 2147483647) && 1 <= len) && 1 <= \result) - InvariantResult [Line: 761]: Loop Invariant Derived loop invariant: ((((((((0 <= i && i <= 2147483647) && r <= 2147483647) && len <= 2147483647) && len <= 1) && 1 <= len) && \result <= 2147483647) && i <= 1) && 1 <= \result) || (((((((0 <= i && 0 <= i) && i <= 2147483647) && r <= 2147483647) && len <= 2147483647) && 1 <= len) && \result <= 2147483647) && 1 <= \result) - InvariantResult [Line: 772]: Loop Invariant Derived loop invariant: (((((((0 <= i && r <= 2147483647) && i == 0) && len <= 2147483647) && j + 1 <= 0) && 1 <= len) && \result <= 2147483647) && 1 <= \result) || ((((((((0 <= i && i <= 2147483647) && r <= 2147483647) && len <= 2147483647) && 1 <= i) && 1 <= len) && j < 2147483649) && \result <= 2147483647) && 1 <= \result) - InvariantResult [Line: 518]: Loop Invariant Derived loop invariant: (r <= 2147483647 && \result <= 2147483647) && 1 <= \result - InvariantResult [Line: 790]: Loop Invariant Derived loop invariant: (((((1 <= i && r <= 2147483647) && len < 16777216) && 1 <= len) && \result <= 2147483647) && 1 <= \result) || (((((i == 0 && r <= 2147483647) && len < 16777216) && 1 <= len) && \result <= 2147483647) && 1 <= \result) RESULT: Ultimate proved your program to be correct! [2022-11-18 20:38:46,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45094ea-4427-49f7-af67-4e9cb808b87c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE