./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/aviad.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc467d8-c99a-4a1e-9e3d-825d94490ded/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc467d8-c99a-4a1e-9e3d-825d94490ded/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_ffc467d8-c99a-4a1e-9e3d-825d94490ded/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc467d8-c99a-4a1e-9e3d-825d94490ded/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/aviad.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc467d8-c99a-4a1e-9e3d-825d94490ded/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc467d8-c99a-4a1e-9e3d-825d94490ded/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 212c9b1b6a93f8f17548e7937584929a6b6ed1677eb6287f5deae898fbaeb3a4 --- 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 20:23:13,051 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:23:13,054 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:23:13,095 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:23:13,095 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:23:13,100 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:23:13,102 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:23:13,105 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:23:13,107 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:23:13,113 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:23:13,114 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:23:13,116 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:23:13,117 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:23:13,119 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:23:13,121 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:23:13,122 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:23:13,124 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:23:13,124 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:23:13,126 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:23:13,133 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:23:13,134 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:23:13,136 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:23:13,138 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:23:13,139 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:23:13,148 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:23:13,148 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:23:13,149 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:23:13,150 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:23:13,151 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:23:13,152 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:23:13,152 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:23:13,154 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:23:13,155 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:23:13,158 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:23:13,159 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:23:13,159 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:23:13,160 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:23:13,160 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:23:13,161 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:23:13,162 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:23:13,163 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:23:13,164 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc467d8-c99a-4a1e-9e3d-825d94490ded/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-18 20:23:13,204 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:23:13,204 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:23:13,205 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:23:13,205 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:23:13,206 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:23:13,207 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:23:13,207 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:23:13,208 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:23:13,208 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:23:13,208 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:23:13,209 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:23:13,210 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:23:13,210 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:23:13,210 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:23:13,211 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:23:13,211 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:23:13,211 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 20:23:13,212 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:23:13,212 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:23:13,212 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:23:13,213 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:23:13,213 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:23:13,213 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:23:13,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:23:13,214 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:23:13,214 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:23:13,214 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:23:13,215 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:23:13,215 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:23:13,215 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:23:13,216 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:23:13,216 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:23:13,217 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_ffc467d8-c99a-4a1e-9e3d-825d94490ded/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc467d8-c99a-4a1e-9e3d-825d94490ded/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 212c9b1b6a93f8f17548e7937584929a6b6ed1677eb6287f5deae898fbaeb3a4 [2022-11-18 20:23:13,539 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:23:13,570 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:23:13,572 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:23:13,574 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:23:13,575 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:23:13,576 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc467d8-c99a-4a1e-9e3d-825d94490ded/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/termination-crafted-lit/aviad.c [2022-11-18 20:23:13,649 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc467d8-c99a-4a1e-9e3d-825d94490ded/bin/uautomizer-TMbwUNV5ro/data/89bec75ad/6fe6e96f09dd4cde860bc6c5adf018b3/FLAG7fbec4b89 [2022-11-18 20:23:14,128 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:23:14,129 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc467d8-c99a-4a1e-9e3d-825d94490ded/sv-benchmarks/c/termination-crafted-lit/aviad.c [2022-11-18 20:23:14,146 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc467d8-c99a-4a1e-9e3d-825d94490ded/bin/uautomizer-TMbwUNV5ro/data/89bec75ad/6fe6e96f09dd4cde860bc6c5adf018b3/FLAG7fbec4b89 [2022-11-18 20:23:14,528 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc467d8-c99a-4a1e-9e3d-825d94490ded/bin/uautomizer-TMbwUNV5ro/data/89bec75ad/6fe6e96f09dd4cde860bc6c5adf018b3 [2022-11-18 20:23:14,532 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:23:14,534 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:23:14,538 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:23:14,538 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:23:14,542 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:23:14,543 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:23:14" (1/1) ... [2022-11-18 20:23:14,545 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7845bc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:14, skipping insertion in model container [2022-11-18 20:23:14,546 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:23:14" (1/1) ... [2022-11-18 20:23:14,553 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:23:14,565 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:23:14,786 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:23:14,793 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:23:14,820 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:23:14,833 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:23:14,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:14 WrapperNode [2022-11-18 20:23:14,834 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:23:14,837 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:23:14,838 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:23:14,838 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:23:14,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:14" (1/1) ... [2022-11-18 20:23:14,853 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:14" (1/1) ... [2022-11-18 20:23:14,874 INFO L138 Inliner]: procedures = 5, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 33 [2022-11-18 20:23:14,875 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:23:14,876 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:23:14,876 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:23:14,876 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:23:14,886 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:14" (1/1) ... [2022-11-18 20:23:14,887 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:14" (1/1) ... [2022-11-18 20:23:14,889 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:14" (1/1) ... [2022-11-18 20:23:14,889 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:14" (1/1) ... [2022-11-18 20:23:14,901 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:14" (1/1) ... [2022-11-18 20:23:14,905 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:14" (1/1) ... [2022-11-18 20:23:14,906 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:14" (1/1) ... [2022-11-18 20:23:14,907 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:14" (1/1) ... [2022-11-18 20:23:14,908 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:23:14,910 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:23:14,910 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:23:14,910 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:23:14,911 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:14" (1/1) ... [2022-11-18 20:23:14,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:23:14,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc467d8-c99a-4a1e-9e3d-825d94490ded/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:23:14,953 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc467d8-c99a-4a1e-9e3d-825d94490ded/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:23:14,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc467d8-c99a-4a1e-9e3d-825d94490ded/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:23:15,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:23:15,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:23:15,067 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:23:15,069 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:23:15,279 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:23:15,287 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:23:15,298 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 20:23:15,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:23:15 BoogieIcfgContainer [2022-11-18 20:23:15,301 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:23:15,303 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:23:15,303 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:23:15,308 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:23:15,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:23:14" (1/3) ... [2022-11-18 20:23:15,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31f77576 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:23:15, skipping insertion in model container [2022-11-18 20:23:15,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:14" (2/3) ... [2022-11-18 20:23:15,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31f77576 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:23:15, skipping insertion in model container [2022-11-18 20:23:15,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:23:15" (3/3) ... [2022-11-18 20:23:15,312 INFO L112 eAbstractionObserver]: Analyzing ICFG aviad.c [2022-11-18 20:23:15,333 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:23:15,333 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-18 20:23:15,409 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:23:15,418 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;@9c9f1ed, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:23:15,418 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-18 20:23:15,423 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 15 states have (on average 1.6) internal successors, (24), 21 states have internal predecessors, (24), 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 20:23:15,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-18 20:23:15,429 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:15,430 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-18 20:23:15,431 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:23:15,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:15,439 INFO L85 PathProgramCache]: Analyzing trace with hash 28699945, now seen corresponding path program 1 times [2022-11-18 20:23:15,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:23:15,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710957594] [2022-11-18 20:23:15,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:15,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:23:15,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:15,697 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 20:23:15,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:23:15,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710957594] [2022-11-18 20:23:15,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710957594] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:23:15,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:23:15,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:23:15,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992358622] [2022-11-18 20:23:15,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:15,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:23:15,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:23:15,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:23:15,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:23:15,748 INFO L87 Difference]: Start difference. First operand has 22 states, 15 states have (on average 1.6) internal successors, (24), 21 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:15,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:15,825 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2022-11-18 20:23:15,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:23:15,827 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-18 20:23:15,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:15,844 INFO L225 Difference]: With dead ends: 27 [2022-11-18 20:23:15,844 INFO L226 Difference]: Without dead ends: 15 [2022-11-18 20:23:15,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:23:15,865 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 15 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:23:15,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 14 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:23:15,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-18 20:23:15,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-11-18 20:23:15,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:15,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2022-11-18 20:23:15,937 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 5 [2022-11-18 20:23:15,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:23:15,938 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2022-11-18 20:23:15,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:15,938 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2022-11-18 20:23:15,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-18 20:23:15,939 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:15,939 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-18 20:23:15,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:23:15,940 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:23:15,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:15,941 INFO L85 PathProgramCache]: Analyzing trace with hash 889698349, now seen corresponding path program 1 times [2022-11-18 20:23:15,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:23:15,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829913265] [2022-11-18 20:23:15,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:15,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:23:15,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:15,974 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 20:23:15,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:23:15,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829913265] [2022-11-18 20:23:15,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829913265] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:23:15,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:23:15,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:23:15,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855156841] [2022-11-18 20:23:15,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:15,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:23:15,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:23:15,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:23:15,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:23:15,979 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:15,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:15,994 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2022-11-18 20:23:15,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:23:15,995 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-18 20:23:15,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:15,996 INFO L225 Difference]: With dead ends: 15 [2022-11-18 20:23:15,996 INFO L226 Difference]: Without dead ends: 13 [2022-11-18 20:23:15,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:23:15,998 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 2 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:23:15,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 16 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:23:16,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-11-18 20:23:16,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-11-18 20:23:16,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:16,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2022-11-18 20:23:16,009 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 6 [2022-11-18 20:23:16,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:23:16,010 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2022-11-18 20:23:16,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:16,010 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2022-11-18 20:23:16,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-18 20:23:16,011 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:16,011 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:23:16,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:23:16,012 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:23:16,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:16,018 INFO L85 PathProgramCache]: Analyzing trace with hash 301623279, now seen corresponding path program 1 times [2022-11-18 20:23:16,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:23:16,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468733005] [2022-11-18 20:23:16,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:16,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:23:16,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:16,115 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 20:23:16,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:23:16,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468733005] [2022-11-18 20:23:16,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468733005] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:23:16,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:23:16,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:23:16,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865323193] [2022-11-18 20:23:16,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:16,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:23:16,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:23:16,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:23:16,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:23:16,124 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:16,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:16,175 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2022-11-18 20:23:16,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:23:16,176 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-18 20:23:16,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:16,177 INFO L225 Difference]: With dead ends: 24 [2022-11-18 20:23:16,178 INFO L226 Difference]: Without dead ends: 23 [2022-11-18 20:23:16,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:23:16,180 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 8 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:23:16,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 29 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:23:16,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-18 20:23:16,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2022-11-18 20:23:16,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 20 states have internal predecessors, (23), 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 20:23:16,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2022-11-18 20:23:16,186 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 8 [2022-11-18 20:23:16,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:23:16,186 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2022-11-18 20:23:16,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:16,187 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2022-11-18 20:23:16,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-18 20:23:16,188 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:16,188 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:23:16,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:23:16,189 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:23:16,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:16,189 INFO L85 PathProgramCache]: Analyzing trace with hash 760387117, now seen corresponding path program 1 times [2022-11-18 20:23:16,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:23:16,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316069415] [2022-11-18 20:23:16,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:16,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:23:16,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:16,235 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 20:23:16,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:23:16,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316069415] [2022-11-18 20:23:16,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316069415] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:23:16,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:23:16,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:23:16,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766690862] [2022-11-18 20:23:16,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:16,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:23:16,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:23:16,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:23:16,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:23:16,239 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:16,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:16,266 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2022-11-18 20:23:16,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:23:16,267 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-18 20:23:16,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:16,268 INFO L225 Difference]: With dead ends: 21 [2022-11-18 20:23:16,268 INFO L226 Difference]: Without dead ends: 20 [2022-11-18 20:23:16,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:23:16,270 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 7 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:23:16,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 18 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:23:16,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-18 20:23:16,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-11-18 20:23:16,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 19 states have internal predecessors, (22), 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 20:23:16,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2022-11-18 20:23:16,276 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 9 [2022-11-18 20:23:16,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:23:16,276 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2022-11-18 20:23:16,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:16,277 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2022-11-18 20:23:16,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-18 20:23:16,277 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:16,277 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-11-18 20:23:16,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:23:16,278 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:23:16,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:16,279 INFO L85 PathProgramCache]: Analyzing trace with hash -472760806, now seen corresponding path program 1 times [2022-11-18 20:23:16,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:23:16,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590403980] [2022-11-18 20:23:16,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:16,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:23:16,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:16,404 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:16,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:23:16,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590403980] [2022-11-18 20:23:16,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590403980] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:23:16,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [45681169] [2022-11-18 20:23:16,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:16,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:23:16,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc467d8-c99a-4a1e-9e3d-825d94490ded/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:23:16,411 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc467d8-c99a-4a1e-9e3d-825d94490ded/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:23:16,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc467d8-c99a-4a1e-9e3d-825d94490ded/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:23:16,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:16,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 20:23:16,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:23:16,532 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:16,532 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:23:16,599 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:16,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [45681169] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:23:16,600 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:23:16,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-11-18 20:23:16,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511994792] [2022-11-18 20:23:16,600 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:23:16,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:23:16,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:23:16,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:23:16,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:23:16,602 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 10 states have internal predecessors, (29), 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 20:23:16,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:16,680 INFO L93 Difference]: Finished difference Result 49 states and 56 transitions. [2022-11-18 20:23:16,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 20:23:16,681 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 10 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-18 20:23:16,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:16,682 INFO L225 Difference]: With dead ends: 49 [2022-11-18 20:23:16,682 INFO L226 Difference]: Without dead ends: 48 [2022-11-18 20:23:16,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-11-18 20:23:16,684 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 29 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:23:16,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 69 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:23:16,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-11-18 20:23:16,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 47. [2022-11-18 20:23:16,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.1304347826086956) internal successors, (52), 46 states have internal predecessors, (52), 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 20:23:16,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 52 transitions. [2022-11-18 20:23:16,701 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 52 transitions. Word has length 15 [2022-11-18 20:23:16,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:23:16,701 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 52 transitions. [2022-11-18 20:23:16,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 10 states have internal predecessors, (29), 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 20:23:16,702 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 52 transitions. [2022-11-18 20:23:16,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-18 20:23:16,703 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:16,703 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 1, 1, 1] [2022-11-18 20:23:16,718 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc467d8-c99a-4a1e-9e3d-825d94490ded/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 20:23:16,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc467d8-c99a-4a1e-9e3d-825d94490ded/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:23:16,909 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:23:16,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:16,910 INFO L85 PathProgramCache]: Analyzing trace with hash 229942063, now seen corresponding path program 2 times [2022-11-18 20:23:16,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:23:16,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79636961] [2022-11-18 20:23:16,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:16,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:23:16,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:17,239 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:17,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:23:17,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79636961] [2022-11-18 20:23:17,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79636961] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:23:17,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1640478037] [2022-11-18 20:23:17,240 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:23:17,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:23:17,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc467d8-c99a-4a1e-9e3d-825d94490ded/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:23:17,247 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc467d8-c99a-4a1e-9e3d-825d94490ded/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:23:17,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc467d8-c99a-4a1e-9e3d-825d94490ded/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 20:23:17,321 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:23:17,322 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:23:17,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-18 20:23:17,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:23:17,442 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:17,442 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:23:17,714 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:17,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1640478037] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:23:17,715 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:23:17,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2022-11-18 20:23:17,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908537920] [2022-11-18 20:23:17,715 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:23:17,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-18 20:23:17,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:23:17,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-18 20:23:17,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2022-11-18 20:23:17,718 INFO L87 Difference]: Start difference. First operand 47 states and 52 transitions. Second operand has 22 states, 21 states have (on average 3.380952380952381) internal successors, (71), 22 states have internal predecessors, (71), 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 20:23:17,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:17,991 INFO L93 Difference]: Finished difference Result 103 states and 119 transitions. [2022-11-18 20:23:17,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-18 20:23:17,992 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.380952380952381) internal successors, (71), 22 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2022-11-18 20:23:17,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:17,999 INFO L225 Difference]: With dead ends: 103 [2022-11-18 20:23:17,999 INFO L226 Difference]: Without dead ends: 102 [2022-11-18 20:23:18,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=306, Invalid=686, Unknown=0, NotChecked=0, Total=992 [2022-11-18 20:23:18,008 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 135 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:23:18,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 101 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:23:18,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2022-11-18 20:23:18,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 101. [2022-11-18 20:23:18,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 100 states have (on average 1.12) internal successors, (112), 100 states have internal predecessors, (112), 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 20:23:18,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 112 transitions. [2022-11-18 20:23:18,025 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 112 transitions. Word has length 36 [2022-11-18 20:23:18,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:23:18,026 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 112 transitions. [2022-11-18 20:23:18,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.380952380952381) internal successors, (71), 22 states have internal predecessors, (71), 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 20:23:18,026 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 112 transitions. [2022-11-18 20:23:18,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-18 20:23:18,028 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:18,028 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 1, 1, 1] [2022-11-18 20:23:18,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc467d8-c99a-4a1e-9e3d-825d94490ded/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:23:18,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc467d8-c99a-4a1e-9e3d-825d94490ded/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-18 20:23:18,236 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:23:18,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:18,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1595795471, now seen corresponding path program 3 times [2022-11-18 20:23:18,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:23:18,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347928223] [2022-11-18 20:23:18,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:18,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:23:18,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:19,040 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 0 proven. 375 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:19,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:23:19,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347928223] [2022-11-18 20:23:19,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347928223] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:23:19,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1456081764] [2022-11-18 20:23:19,042 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 20:23:19,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:23:19,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc467d8-c99a-4a1e-9e3d-825d94490ded/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:23:19,047 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc467d8-c99a-4a1e-9e3d-825d94490ded/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:23:19,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc467d8-c99a-4a1e-9e3d-825d94490ded/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 20:23:19,123 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-18 20:23:19,123 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:23:19,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-18 20:23:19,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:23:19,406 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 113 proven. 1 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2022-11-18 20:23:19,406 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:23:19,719 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2022-11-18 20:23:19,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1456081764] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-18 20:23:19,720 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-18 20:23:19,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [23, 6] total 31 [2022-11-18 20:23:19,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787465322] [2022-11-18 20:23:19,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:19,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:23:19,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:23:19,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:23:19,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=755, Unknown=0, NotChecked=0, Total=930 [2022-11-18 20:23:19,725 INFO L87 Difference]: Start difference. First operand 101 states and 112 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 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 20:23:19,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:19,846 INFO L93 Difference]: Finished difference Result 260 states and 290 transitions. [2022-11-18 20:23:19,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:23:19,848 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-11-18 20:23:19,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:19,851 INFO L225 Difference]: With dead ends: 260 [2022-11-18 20:23:19,852 INFO L226 Difference]: Without dead ends: 174 [2022-11-18 20:23:19,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 148 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=180, Invalid=812, Unknown=0, NotChecked=0, Total=992 [2022-11-18 20:23:19,855 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 19 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:23:19,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 33 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:23:19,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2022-11-18 20:23:19,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 153. [2022-11-18 20:23:19,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 152 states have (on average 1.0855263157894737) internal successors, (165), 152 states have internal predecessors, (165), 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 20:23:19,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 165 transitions. [2022-11-18 20:23:19,903 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 165 transitions. Word has length 78 [2022-11-18 20:23:19,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:23:19,903 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 165 transitions. [2022-11-18 20:23:19,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 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 20:23:19,905 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 165 transitions. [2022-11-18 20:23:19,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-18 20:23:19,919 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:19,919 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 6, 6, 6, 5, 5, 5, 1, 1, 1] [2022-11-18 20:23:19,935 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc467d8-c99a-4a1e-9e3d-825d94490ded/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-18 20:23:20,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc467d8-c99a-4a1e-9e3d-825d94490ded/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:23:20,122 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:23:20,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:20,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1751107155, now seen corresponding path program 1 times [2022-11-18 20:23:20,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:23:20,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725962141] [2022-11-18 20:23:20,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:20,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:23:20,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:20,790 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 0 proven. 315 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:20,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:23:20,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725962141] [2022-11-18 20:23:20,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725962141] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:23:20,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1100980970] [2022-11-18 20:23:20,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:20,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:23:20,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc467d8-c99a-4a1e-9e3d-825d94490ded/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:23:20,792 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc467d8-c99a-4a1e-9e3d-825d94490ded/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:23:20,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc467d8-c99a-4a1e-9e3d-825d94490ded/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 20:23:20,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:20,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-18 20:23:20,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:23:21,038 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 0 proven. 315 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:21,039 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:23:21,709 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 0 proven. 315 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:21,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1100980970] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:23:21,709 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:23:21,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 45 [2022-11-18 20:23:21,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257918131] [2022-11-18 20:23:21,710 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:23:21,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-11-18 20:23:21,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:23:21,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-11-18 20:23:21,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2022-11-18 20:23:21,712 INFO L87 Difference]: Start difference. First operand 153 states and 165 transitions. Second operand has 46 states, 45 states have (on average 3.4444444444444446) internal successors, (155), 46 states have internal predecessors, (155), 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 20:23:22,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:22,396 INFO L93 Difference]: Finished difference Result 324 states and 371 transitions. [2022-11-18 20:23:22,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-11-18 20:23:22,396 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 3.4444444444444446) internal successors, (155), 46 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-11-18 20:23:22,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:22,398 INFO L225 Difference]: With dead ends: 324 [2022-11-18 20:23:22,398 INFO L226 Difference]: Without dead ends: 323 [2022-11-18 20:23:22,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 862 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1332, Invalid=3224, Unknown=0, NotChecked=0, Total=4556 [2022-11-18 20:23:22,401 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 402 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:23:22,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [402 Valid, 211 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:23:22,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2022-11-18 20:23:22,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 321. [2022-11-18 20:23:22,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 320 states have (on average 1.078125) internal successors, (345), 320 states have internal predecessors, (345), 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 20:23:22,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 345 transitions. [2022-11-18 20:23:22,435 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 345 transitions. Word has length 78 [2022-11-18 20:23:22,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:23:22,438 INFO L495 AbstractCegarLoop]: Abstraction has 321 states and 345 transitions. [2022-11-18 20:23:22,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 3.4444444444444446) internal successors, (155), 46 states have internal predecessors, (155), 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 20:23:22,438 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 345 transitions. [2022-11-18 20:23:22,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-11-18 20:23:22,440 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:22,440 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 12, 12, 12, 11, 11, 11, 1, 1, 1] [2022-11-18 20:23:22,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc467d8-c99a-4a1e-9e3d-825d94490ded/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 20:23:22,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc467d8-c99a-4a1e-9e3d-825d94490ded/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:23:22,651 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:23:22,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:22,652 INFO L85 PathProgramCache]: Analyzing trace with hash 515046929, now seen corresponding path program 2 times [2022-11-18 20:23:22,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:23:22,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463679811] [2022-11-18 20:23:22,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:22,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:23:22,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:25,297 INFO L134 CoverageAnalysis]: Checked inductivity of 1485 backedges. 0 proven. 1485 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:25,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:23:25,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463679811] [2022-11-18 20:23:25,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463679811] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:23:25,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1170459127] [2022-11-18 20:23:25,298 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:23:25,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:23:25,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc467d8-c99a-4a1e-9e3d-825d94490ded/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:23:25,300 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc467d8-c99a-4a1e-9e3d-825d94490ded/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:23:25,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc467d8-c99a-4a1e-9e3d-825d94490ded/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 20:23:25,442 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:23:25,443 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:23:25,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 47 conjunts are in the unsatisfiable core [2022-11-18 20:23:25,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:23:25,806 INFO L134 CoverageAnalysis]: Checked inductivity of 1485 backedges. 0 proven. 1485 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:25,807 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:23:28,449 INFO L134 CoverageAnalysis]: Checked inductivity of 1485 backedges. 0 proven. 1485 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:28,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1170459127] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:23:28,449 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:23:28,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 93 [2022-11-18 20:23:28,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436595201] [2022-11-18 20:23:28,450 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:23:28,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2022-11-18 20:23:28,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:23:28,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2022-11-18 20:23:28,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2255, Invalid=6487, Unknown=0, NotChecked=0, Total=8742 [2022-11-18 20:23:28,456 INFO L87 Difference]: Start difference. First operand 321 states and 345 transitions. Second operand has 94 states, 93 states have (on average 3.4731182795698925) internal successors, (323), 94 states have internal predecessors, (323), 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 20:23:30,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:30,530 INFO L93 Difference]: Finished difference Result 660 states and 755 transitions. [2022-11-18 20:23:30,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-11-18 20:23:30,532 INFO L78 Accepts]: Start accepts. Automaton has has 94 states, 93 states have (on average 3.4731182795698925) internal successors, (323), 94 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 162 [2022-11-18 20:23:30,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:30,537 INFO L225 Difference]: With dead ends: 660 [2022-11-18 20:23:30,537 INFO L226 Difference]: Without dead ends: 659 [2022-11-18 20:23:30,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4006 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=5544, Invalid=13916, Unknown=0, NotChecked=0, Total=19460 [2022-11-18 20:23:30,552 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 1161 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1161 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:23:30,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1161 Valid, 363 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 20:23:30,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2022-11-18 20:23:30,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 657. [2022-11-18 20:23:30,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 656 states have (on average 1.0746951219512195) internal successors, (705), 656 states have internal predecessors, (705), 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 20:23:30,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 705 transitions. [2022-11-18 20:23:30,591 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 705 transitions. Word has length 162 [2022-11-18 20:23:30,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:23:30,592 INFO L495 AbstractCegarLoop]: Abstraction has 657 states and 705 transitions. [2022-11-18 20:23:30,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 93 states have (on average 3.4731182795698925) internal successors, (323), 94 states have internal predecessors, (323), 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 20:23:30,593 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 705 transitions. [2022-11-18 20:23:30,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2022-11-18 20:23:30,613 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:30,613 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 24, 24, 24, 23, 23, 23, 1, 1, 1] [2022-11-18 20:23:30,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc467d8-c99a-4a1e-9e3d-825d94490ded/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-18 20:23:30,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc467d8-c99a-4a1e-9e3d-825d94490ded/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:23:30,819 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:23:30,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:30,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1058789593, now seen corresponding path program 3 times [2022-11-18 20:23:30,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:23:30,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572883896] [2022-11-18 20:23:30,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:30,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:23:31,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:38,085 INFO L134 CoverageAnalysis]: Checked inductivity of 6417 backedges. 0 proven. 6417 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:38,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:23:38,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572883896] [2022-11-18 20:23:38,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572883896] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:23:38,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1400351670] [2022-11-18 20:23:38,086 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 20:23:38,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:23:38,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc467d8-c99a-4a1e-9e3d-825d94490ded/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:23:38,099 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc467d8-c99a-4a1e-9e3d-825d94490ded/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:23:38,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc467d8-c99a-4a1e-9e3d-825d94490ded/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-18 20:23:38,683 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 41 check-sat command(s) [2022-11-18 20:23:38,683 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:23:38,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 689 conjuncts, 95 conjunts are in the unsatisfiable core [2022-11-18 20:23:38,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:23:39,322 INFO L134 CoverageAnalysis]: Checked inductivity of 6417 backedges. 0 proven. 6417 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:39,322 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:23:47,535 INFO L134 CoverageAnalysis]: Checked inductivity of 6417 backedges. 0 proven. 6417 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:47,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1400351670] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:23:47,536 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:23:47,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95, 95] total 189 [2022-11-18 20:23:47,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689569238] [2022-11-18 20:23:47,536 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:23:47,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 190 states [2022-11-18 20:23:47,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:23:47,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 190 interpolants. [2022-11-18 20:23:47,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9119, Invalid=26791, Unknown=0, NotChecked=0, Total=35910 [2022-11-18 20:23:47,553 INFO L87 Difference]: Start difference. First operand 657 states and 705 transitions. Second operand has 190 states, 189 states have (on average 3.486772486772487) internal successors, (659), 190 states have internal predecessors, (659), 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 20:23:55,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:55,655 INFO L93 Difference]: Finished difference Result 1332 states and 1523 transitions. [2022-11-18 20:23:55,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2022-11-18 20:23:55,656 INFO L78 Accepts]: Start accepts. Automaton has has 190 states, 189 states have (on average 3.486772486772487) internal successors, (659), 190 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 330 [2022-11-18 20:23:55,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:55,661 INFO L225 Difference]: With dead ends: 1332 [2022-11-18 20:23:55,662 INFO L226 Difference]: Without dead ends: 1331 [2022-11-18 20:23:55,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 847 GetRequests, 565 SyntacticMatches, 0 SemanticMatches, 282 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17206 ImplicationChecksByTransitivity, 16.1s TimeCoverageRelationStatistics Valid=22608, Invalid=57764, Unknown=0, NotChecked=0, Total=80372 [2022-11-18 20:23:55,672 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 3109 mSDsluCounter, 721 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3109 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 20:23:55,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3109 Valid, 731 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-18 20:23:55,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1331 states. [2022-11-18 20:23:55,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1331 to 1329. [2022-11-18 20:23:55,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1329 states, 1328 states have (on average 1.0730421686746987) internal successors, (1425), 1328 states have internal predecessors, (1425), 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 20:23:55,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1329 states to 1329 states and 1425 transitions. [2022-11-18 20:23:55,737 INFO L78 Accepts]: Start accepts. Automaton has 1329 states and 1425 transitions. Word has length 330 [2022-11-18 20:23:55,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:23:55,738 INFO L495 AbstractCegarLoop]: Abstraction has 1329 states and 1425 transitions. [2022-11-18 20:23:55,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 190 states, 189 states have (on average 3.486772486772487) internal successors, (659), 190 states have internal predecessors, (659), 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 20:23:55,739 INFO L276 IsEmpty]: Start isEmpty. Operand 1329 states and 1425 transitions. [2022-11-18 20:23:55,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 667 [2022-11-18 20:23:55,760 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:55,760 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 94, 94, 48, 48, 48, 47, 47, 47, 1, 1, 1] [2022-11-18 20:23:55,771 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc467d8-c99a-4a1e-9e3d-825d94490ded/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-18 20:23:55,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc467d8-c99a-4a1e-9e3d-825d94490ded/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-18 20:23:55,968 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:23:55,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:55,969 INFO L85 PathProgramCache]: Analyzing trace with hash -589900183, now seen corresponding path program 4 times [2022-11-18 20:23:55,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:23:55,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171271495] [2022-11-18 20:23:55,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:55,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:23:57,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:18,120 INFO L134 CoverageAnalysis]: Checked inductivity of 26649 backedges. 22640 proven. 524 refuted. 0 times theorem prover too weak. 3485 trivial. 0 not checked. [2022-11-18 20:24:18,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:24:18,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171271495] [2022-11-18 20:24:18,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171271495] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:24:18,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1148913240] [2022-11-18 20:24:18,120 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 20:24:18,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:24:18,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc467d8-c99a-4a1e-9e3d-825d94490ded/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:24:18,121 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc467d8-c99a-4a1e-9e3d-825d94490ded/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:24:18,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc467d8-c99a-4a1e-9e3d-825d94490ded/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-18 20:24:18,505 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 20:24:18,506 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:24:18,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 1385 conjuncts, 191 conjunts are in the unsatisfiable core [2022-11-18 20:24:18,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:24:38,105 INFO L134 CoverageAnalysis]: Checked inductivity of 26649 backedges. 0 proven. 26649 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:24:38,106 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:25:16,399 INFO L134 CoverageAnalysis]: Checked inductivity of 26649 backedges. 0 proven. 26649 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:25:16,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1148913240] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:25:16,399 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:25:16,400 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [94, 191, 191] total 474 [2022-11-18 20:25:16,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282067493] [2022-11-18 20:25:16,400 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:25:16,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 474 states [2022-11-18 20:25:16,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:25:16,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 474 interpolants. [2022-11-18 20:25:16,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39994, Invalid=184208, Unknown=0, NotChecked=0, Total=224202 [2022-11-18 20:25:16,429 INFO L87 Difference]: Start difference. First operand 1329 states and 1425 transitions. Second operand has 474 states, 474 states have (on average 3.721518987341772) internal successors, (1764), 474 states have internal predecessors, (1764), 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)