./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ --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 ef201cd54bcdc81a1760f6e60d88bd9cc04c6c00c0d7306b10fb5fb0b61b4e06 --- 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-dbf71c6-m [2022-10-17 10:44:48,337 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:44:48,340 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:44:48,392 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:44:48,393 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:44:48,399 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:44:48,402 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:44:48,408 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:44:48,411 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:44:48,417 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:44:48,418 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:44:48,421 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:44:48,422 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:44:48,424 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:44:48,426 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:44:48,429 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:44:48,430 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:44:48,432 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:44:48,434 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:44:48,441 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:44:48,443 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:44:48,445 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:44:48,448 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:44:48,449 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:44:48,454 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:44:48,455 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:44:48,455 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:44:48,457 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:44:48,458 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:44:48,459 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:44:48,460 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:44:48,461 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:44:48,464 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:44:48,466 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:44:48,467 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:44:48,467 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:44:48,468 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:44:48,468 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:44:48,469 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:44:48,474 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:44:48,476 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:44:48,477 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-10-17 10:44:48,532 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:44:48,533 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:44:48,534 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:44:48,534 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:44:48,535 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:44:48,535 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:44:48,536 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:44:48,536 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:44:48,536 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:44:48,537 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:44:48,538 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 10:44:48,538 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:44:48,538 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:44:48,538 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:44:48,539 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:44:48,539 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:44:48,539 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-17 10:44:48,539 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:44:48,539 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:44:48,540 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:44:48,540 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:44:48,540 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:44:48,540 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:44:48,541 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:44:48,541 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:44:48,541 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:44:48,541 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:44:48,542 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:44:48,542 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:44:48,542 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:44:48,544 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_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef201cd54bcdc81a1760f6e60d88bd9cc04c6c00c0d7306b10fb5fb0b61b4e06 [2022-10-17 10:44:48,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:44:48,862 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:44:48,866 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:44:48,867 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:44:48,868 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:44:48,870 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.c [2022-10-17 10:44:48,937 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/data/9a809dd4c/84a53c62e988474e83a647c5559eb721/FLAG502b5f06c [2022-10-17 10:44:49,477 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:44:49,477 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.c [2022-10-17 10:44:49,485 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/data/9a809dd4c/84a53c62e988474e83a647c5559eb721/FLAG502b5f06c [2022-10-17 10:44:49,835 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/data/9a809dd4c/84a53c62e988474e83a647c5559eb721 [2022-10-17 10:44:49,837 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:44:49,839 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:44:49,840 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:44:49,841 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:44:49,846 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:44:49,846 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:44:49" (1/1) ... [2022-10-17 10:44:49,848 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@766f7b20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:44:49, skipping insertion in model container [2022-10-17 10:44:49,848 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:44:49" (1/1) ... [2022-10-17 10:44:49,855 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:44:49,865 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:44:50,058 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:44:50,062 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:44:50,079 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:44:50,092 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:44:50,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:44:50 WrapperNode [2022-10-17 10:44:50,093 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:44:50,094 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:44:50,094 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:44:50,094 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:44:50,103 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:44:50" (1/1) ... [2022-10-17 10:44:50,108 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:44:50" (1/1) ... [2022-10-17 10:44:50,127 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 40 [2022-10-17 10:44:50,127 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:44:50,128 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:44:50,128 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:44:50,129 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:44:50,137 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:44:50" (1/1) ... [2022-10-17 10:44:50,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:44:50" (1/1) ... [2022-10-17 10:44:50,139 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:44:50" (1/1) ... [2022-10-17 10:44:50,139 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:44:50" (1/1) ... [2022-10-17 10:44:50,141 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:44:50" (1/1) ... [2022-10-17 10:44:50,145 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:44:50" (1/1) ... [2022-10-17 10:44:50,146 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:44:50" (1/1) ... [2022-10-17 10:44:50,147 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:44:50" (1/1) ... [2022-10-17 10:44:50,148 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:44:50,149 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:44:50,149 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:44:50,150 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:44:50,151 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:44:50" (1/1) ... [2022-10-17 10:44:50,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:44:50,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:44:50,182 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:44:50,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:44:50,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:44:50,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:44:50,298 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:44:50,299 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:44:50,422 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:44:50,430 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:44:50,430 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 10:44:50,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:44:50 BoogieIcfgContainer [2022-10-17 10:44:50,433 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:44:50,436 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:44:50,436 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:44:50,444 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:44:50,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:44:49" (1/3) ... [2022-10-17 10:44:50,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d640126 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:44:50, skipping insertion in model container [2022-10-17 10:44:50,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:44:50" (2/3) ... [2022-10-17 10:44:50,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d640126 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:44:50, skipping insertion in model container [2022-10-17 10:44:50,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:44:50" (3/3) ... [2022-10-17 10:44:50,449 INFO L112 eAbstractionObserver]: Analyzing ICFG ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.c [2022-10-17 10:44:50,471 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:44:50,471 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-10-17 10:44:50,550 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:44:50,562 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2dcabe8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:44:50,562 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-10-17 10:44:50,569 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 21 states have (on average 1.8095238095238095) internal successors, (38), 31 states have internal predecessors, (38), 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) [2022-10-17 10:44:50,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-17 10:44:50,584 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:44:50,585 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-10-17 10:44:50,586 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-17 10:44:50,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:44:50,596 INFO L85 PathProgramCache]: Analyzing trace with hash 925796, now seen corresponding path program 1 times [2022-10-17 10:44:50,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:44:50,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365031505] [2022-10-17 10:44:50,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:44:50,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:44:50,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:44:50,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:44:50,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:44:50,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365031505] [2022-10-17 10:44:50,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365031505] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:44:50,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:44:50,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:44:50,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979835006] [2022-10-17 10:44:50,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:44:50,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:44:50,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:44:50,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:44:50,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:44:50,848 INFO L87 Difference]: Start difference. First operand has 32 states, 21 states have (on average 1.8095238095238095) internal successors, (38), 31 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:44:50,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:44:50,895 INFO L93 Difference]: Finished difference Result 44 states and 51 transitions. [2022-10-17 10:44:50,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:44:50,902 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-10-17 10:44:50,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:44:50,913 INFO L225 Difference]: With dead ends: 44 [2022-10-17 10:44:50,928 INFO L226 Difference]: Without dead ends: 31 [2022-10-17 10:44:50,931 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 [2022-10-17 10:44:50,935 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 6 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:44:50,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 62 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:44:50,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-10-17 10:44:50,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2022-10-17 10:44:50,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 20 states have (on average 1.75) internal successors, (35), 29 states have internal predecessors, (35), 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) [2022-10-17 10:44:51,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2022-10-17 10:44:51,002 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 35 transitions. Word has length 4 [2022-10-17 10:44:51,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:44:51,002 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 35 transitions. [2022-10-17 10:44:51,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:44:51,003 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2022-10-17 10:44:51,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-17 10:44:51,004 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:44:51,004 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-17 10:44:51,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:44:51,005 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-17 10:44:51,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:44:51,005 INFO L85 PathProgramCache]: Analyzing trace with hash 28699721, now seen corresponding path program 1 times [2022-10-17 10:44:51,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:44:51,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805802413] [2022-10-17 10:44:51,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:44:51,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:44:51,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:44:51,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:44:51,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:44:51,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805802413] [2022-10-17 10:44:51,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805802413] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:44:51,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:44:51,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:44:51,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539475977] [2022-10-17 10:44:51,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:44:51,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:44:51,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:44:51,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:44:51,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:44:51,047 INFO L87 Difference]: Start difference. First operand 30 states and 35 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:44:51,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:44:51,062 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2022-10-17 10:44:51,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:44:51,063 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 [2022-10-17 10:44:51,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:44:51,064 INFO L225 Difference]: With dead ends: 30 [2022-10-17 10:44:51,064 INFO L226 Difference]: Without dead ends: 29 [2022-10-17 10:44:51,065 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 [2022-10-17 10:44:51,067 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 27 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:44:51,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 29 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:44:51,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-10-17 10:44:51,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-10-17 10:44:51,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 20 states have (on average 1.7) internal successors, (34), 28 states have internal predecessors, (34), 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) [2022-10-17 10:44:51,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2022-10-17 10:44:51,076 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 5 [2022-10-17 10:44:51,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:44:51,076 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2022-10-17 10:44:51,077 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) [2022-10-17 10:44:51,077 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2022-10-17 10:44:51,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-17 10:44:51,078 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:44:51,078 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:44:51,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 10:44:51,079 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-17 10:44:51,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:44:51,079 INFO L85 PathProgramCache]: Analyzing trace with hash 294944169, now seen corresponding path program 1 times [2022-10-17 10:44:51,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:44:51,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904639508] [2022-10-17 10:44:51,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:44:51,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:44:51,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:44:51,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:44:51,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:44:51,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904639508] [2022-10-17 10:44:51,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904639508] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:44:51,177 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:44:51,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:44:51,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630023210] [2022-10-17 10:44:51,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:44:51,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:44:51,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:44:51,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:44:51,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:44:51,179 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:44:51,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:44:51,273 INFO L93 Difference]: Finished difference Result 52 states and 64 transitions. [2022-10-17 10:44:51,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:44:51,274 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-10-17 10:44:51,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:44:51,275 INFO L225 Difference]: With dead ends: 52 [2022-10-17 10:44:51,276 INFO L226 Difference]: Without dead ends: 50 [2022-10-17 10:44:51,276 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 [2022-10-17 10:44:51,278 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 21 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:44:51,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 49 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 10:44:51,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-10-17 10:44:51,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 44. [2022-10-17 10:44:51,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 35 states have (on average 1.7142857142857142) internal successors, (60), 43 states have internal predecessors, (60), 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) [2022-10-17 10:44:51,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 60 transitions. [2022-10-17 10:44:51,298 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 60 transitions. Word has length 8 [2022-10-17 10:44:51,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:44:51,299 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 60 transitions. [2022-10-17 10:44:51,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:44:51,300 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 60 transitions. [2022-10-17 10:44:51,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-17 10:44:51,302 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:44:51,302 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-10-17 10:44:51,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-17 10:44:51,303 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-17 10:44:51,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:44:51,304 INFO L85 PathProgramCache]: Analyzing trace with hash 294981328, now seen corresponding path program 1 times [2022-10-17 10:44:51,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:44:51,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392722066] [2022-10-17 10:44:51,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:44:51,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:44:51,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:44:51,373 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:44:51,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:44:51,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392722066] [2022-10-17 10:44:51,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392722066] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:44:51,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [672954411] [2022-10-17 10:44:51,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:44:51,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:44:51,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:44:51,381 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:44:51,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-17 10:44:51,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:44:51,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 10:44:51,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:44:51,496 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:44:51,497 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:44:51,552 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:44:51,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [672954411] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:44:51,553 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:44:51,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-10-17 10:44:51,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126147025] [2022-10-17 10:44:51,555 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:44:51,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:44:51,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:44:51,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:44:51,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:44:51,562 INFO L87 Difference]: Start difference. First operand 44 states and 60 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:44:51,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:44:51,651 INFO L93 Difference]: Finished difference Result 147 states and 203 transitions. [2022-10-17 10:44:51,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:44:51,652 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-10-17 10:44:51,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:44:51,654 INFO L225 Difference]: With dead ends: 147 [2022-10-17 10:44:51,654 INFO L226 Difference]: Without dead ends: 146 [2022-10-17 10:44:51,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:44:51,657 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 104 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:44:51,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 136 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 10:44:51,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-10-17 10:44:51,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 124. [2022-10-17 10:44:51,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 115 states have (on average 1.7130434782608697) internal successors, (197), 123 states have internal predecessors, (197), 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) [2022-10-17 10:44:51,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 197 transitions. [2022-10-17 10:44:51,688 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 197 transitions. Word has length 8 [2022-10-17 10:44:51,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:44:51,689 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 197 transitions. [2022-10-17 10:44:51,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:44:51,690 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 197 transitions. [2022-10-17 10:44:51,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 10:44:51,690 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:44:51,691 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:44:51,724 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-17 10:44:51,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:44:51,892 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-17 10:44:51,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:44:51,892 INFO L85 PathProgramCache]: Analyzing trace with hash 553334702, now seen corresponding path program 1 times [2022-10-17 10:44:51,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:44:51,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017679475] [2022-10-17 10:44:51,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:44:51,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:44:51,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:44:51,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:44:51,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:44:51,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017679475] [2022-10-17 10:44:51,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017679475] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:44:51,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:44:51,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:44:51,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575254839] [2022-10-17 10:44:51,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:44:51,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:44:51,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:44:51,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:44:51,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:44:51,960 INFO L87 Difference]: Start difference. First operand 124 states and 197 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:44:52,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:44:52,014 INFO L93 Difference]: Finished difference Result 213 states and 338 transitions. [2022-10-17 10:44:52,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:44:52,021 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-17 10:44:52,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:44:52,024 INFO L225 Difference]: With dead ends: 213 [2022-10-17 10:44:52,029 INFO L226 Difference]: Without dead ends: 211 [2022-10-17 10:44:52,029 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 [2022-10-17 10:44:52,031 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 20 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:44:52,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 49 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:44:52,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2022-10-17 10:44:52,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 206. [2022-10-17 10:44:52,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 197 states have (on average 1.6598984771573604) internal successors, (327), 205 states have internal predecessors, (327), 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) [2022-10-17 10:44:52,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 327 transitions. [2022-10-17 10:44:52,069 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 327 transitions. Word has length 9 [2022-10-17 10:44:52,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:44:52,069 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 327 transitions. [2022-10-17 10:44:52,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:44:52,070 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 327 transitions. [2022-10-17 10:44:52,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-17 10:44:52,071 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:44:52,071 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:44:52,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-17 10:44:52,072 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-17 10:44:52,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:44:52,072 INFO L85 PathProgramCache]: Analyzing trace with hash -26301678, now seen corresponding path program 1 times [2022-10-17 10:44:52,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:44:52,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579444252] [2022-10-17 10:44:52,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:44:52,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:44:52,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:44:52,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:44:52,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:44:52,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579444252] [2022-10-17 10:44:52,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579444252] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:44:52,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:44:52,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:44:52,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043191183] [2022-10-17 10:44:52,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:44:52,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:44:52,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:44:52,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:44:52,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:44:52,138 INFO L87 Difference]: Start difference. First operand 206 states and 327 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:44:52,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:44:52,171 INFO L93 Difference]: Finished difference Result 346 states and 547 transitions. [2022-10-17 10:44:52,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:44:52,172 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-17 10:44:52,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:44:52,175 INFO L225 Difference]: With dead ends: 346 [2022-10-17 10:44:52,175 INFO L226 Difference]: Without dead ends: 344 [2022-10-17 10:44:52,176 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 [2022-10-17 10:44:52,177 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 19 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:44:52,178 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 49 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:44:52,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2022-10-17 10:44:52,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 331. [2022-10-17 10:44:52,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 322 states have (on average 1.5745341614906831) internal successors, (507), 330 states have internal predecessors, (507), 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) [2022-10-17 10:44:52,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 507 transitions. [2022-10-17 10:44:52,233 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 507 transitions. Word has length 10 [2022-10-17 10:44:52,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:44:52,233 INFO L495 AbstractCegarLoop]: Abstraction has 331 states and 507 transitions. [2022-10-17 10:44:52,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:44:52,234 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 507 transitions. [2022-10-17 10:44:52,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-17 10:44:52,235 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:44:52,235 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:44:52,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-17 10:44:52,237 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-17 10:44:52,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:44:52,237 INFO L85 PathProgramCache]: Analyzing trace with hash -815351945, now seen corresponding path program 1 times [2022-10-17 10:44:52,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:44:52,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435047826] [2022-10-17 10:44:52,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:44:52,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:44:52,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:44:52,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:44:52,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:44:52,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435047826] [2022-10-17 10:44:52,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435047826] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:44:52,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:44:52,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:44:52,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677531245] [2022-10-17 10:44:52,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:44:52,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:44:52,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:44:52,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:44:52,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:44:52,304 INFO L87 Difference]: Start difference. First operand 331 states and 507 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-10-17 10:44:52,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:44:52,352 INFO L93 Difference]: Finished difference Result 550 states and 841 transitions. [2022-10-17 10:44:52,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:44:52,354 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-10-17 10:44:52,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:44:52,359 INFO L225 Difference]: With dead ends: 550 [2022-10-17 10:44:52,359 INFO L226 Difference]: Without dead ends: 548 [2022-10-17 10:44:52,360 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 [2022-10-17 10:44:52,362 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 18 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:44:52,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 49 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:44:52,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2022-10-17 10:44:52,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 543. [2022-10-17 10:44:52,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 534 states have (on average 1.5149812734082397) internal successors, (809), 542 states have internal predecessors, (809), 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) [2022-10-17 10:44:52,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 809 transitions. [2022-10-17 10:44:52,425 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 809 transitions. Word has length 11 [2022-10-17 10:44:52,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:44:52,426 INFO L495 AbstractCegarLoop]: Abstraction has 543 states and 809 transitions. [2022-10-17 10:44:52,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-10-17 10:44:52,426 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 809 transitions. [2022-10-17 10:44:52,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-17 10:44:52,428 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:44:52,428 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-10-17 10:44:52,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-17 10:44:52,429 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-17 10:44:52,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:44:52,429 INFO L85 PathProgramCache]: Analyzing trace with hash -329510763, now seen corresponding path program 1 times [2022-10-17 10:44:52,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:44:52,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237659736] [2022-10-17 10:44:52,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:44:52,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:44:52,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:44:52,491 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:44:52,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:44:52,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237659736] [2022-10-17 10:44:52,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237659736] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:44:52,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [86514071] [2022-10-17 10:44:52,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:44:52,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:44:52,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:44:52,493 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:44:52,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-17 10:44:52,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:44:52,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 10:44:52,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:44:52,582 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:44:52,583 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:44:52,639 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:44:52,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [86514071] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:44:52,640 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:44:52,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-10-17 10:44:52,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311999510] [2022-10-17 10:44:52,640 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:44:52,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:44:52,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:44:52,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:44:52,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:44:52,645 INFO L87 Difference]: Start difference. First operand 543 states and 809 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 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) [2022-10-17 10:44:52,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:44:52,770 INFO L93 Difference]: Finished difference Result 1047 states and 1608 transitions. [2022-10-17 10:44:52,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:44:52,780 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 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 [2022-10-17 10:44:52,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:44:52,788 INFO L225 Difference]: With dead ends: 1047 [2022-10-17 10:44:52,789 INFO L226 Difference]: Without dead ends: 1045 [2022-10-17 10:44:52,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:44:52,795 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 118 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:44:52,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 116 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 10:44:52,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2022-10-17 10:44:52,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 904. [2022-10-17 10:44:52,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 904 states, 895 states have (on average 1.5273743016759778) internal successors, (1367), 903 states have internal predecessors, (1367), 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) [2022-10-17 10:44:52,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 904 states to 904 states and 1367 transitions. [2022-10-17 10:44:52,847 INFO L78 Accepts]: Start accepts. Automaton has 904 states and 1367 transitions. Word has length 15 [2022-10-17 10:44:52,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:44:52,847 INFO L495 AbstractCegarLoop]: Abstraction has 904 states and 1367 transitions. [2022-10-17 10:44:52,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 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) [2022-10-17 10:44:52,848 INFO L276 IsEmpty]: Start isEmpty. Operand 904 states and 1367 transitions. [2022-10-17 10:44:52,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-17 10:44:52,854 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:44:52,854 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:44:52,897 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-17 10:44:53,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:44:53,068 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-17 10:44:53,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:44:53,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1722862724, now seen corresponding path program 1 times [2022-10-17 10:44:53,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:44:53,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357691164] [2022-10-17 10:44:53,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:44:53,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:44:53,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:44:53,175 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:44:53,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:44:53,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357691164] [2022-10-17 10:44:53,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357691164] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:44:53,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2133564593] [2022-10-17 10:44:53,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:44:53,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:44:53,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:44:53,177 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:44:53,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-17 10:44:53,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:44:53,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 10:44:53,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:44:53,253 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:44:53,254 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:44:53,297 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:44:53,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2133564593] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:44:53,297 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:44:53,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-10-17 10:44:53,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279806891] [2022-10-17 10:44:53,298 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:44:53,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:44:53,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:44:53,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:44:53,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:44:53,300 INFO L87 Difference]: Start difference. First operand 904 states and 1367 transitions. Second operand has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 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) [2022-10-17 10:44:53,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:44:53,367 INFO L93 Difference]: Finished difference Result 1365 states and 2106 transitions. [2022-10-17 10:44:53,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:44:53,368 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 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 17 [2022-10-17 10:44:53,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:44:53,376 INFO L225 Difference]: With dead ends: 1365 [2022-10-17 10:44:53,376 INFO L226 Difference]: Without dead ends: 1363 [2022-10-17 10:44:53,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:44:53,380 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 84 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:44:53,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 71 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:44:53,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1363 states. [2022-10-17 10:44:53,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1363 to 1061. [2022-10-17 10:44:53,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1061 states, 1053 states have (on average 1.5175688509021843) internal successors, (1598), 1060 states have internal predecessors, (1598), 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) [2022-10-17 10:44:53,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1061 states to 1061 states and 1598 transitions. [2022-10-17 10:44:53,441 INFO L78 Accepts]: Start accepts. Automaton has 1061 states and 1598 transitions. Word has length 17 [2022-10-17 10:44:53,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:44:53,441 INFO L495 AbstractCegarLoop]: Abstraction has 1061 states and 1598 transitions. [2022-10-17 10:44:53,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 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) [2022-10-17 10:44:53,441 INFO L276 IsEmpty]: Start isEmpty. Operand 1061 states and 1598 transitions. [2022-10-17 10:44:53,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-17 10:44:53,445 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:44:53,445 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-10-17 10:44:53,467 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-17 10:44:53,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:44:53,652 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-17 10:44:53,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:44:53,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1244341817, now seen corresponding path program 1 times [2022-10-17 10:44:53,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:44:53,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498492472] [2022-10-17 10:44:53,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:44:53,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:44:53,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:44:53,722 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:44:53,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:44:53,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498492472] [2022-10-17 10:44:53,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498492472] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:44:53,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1197836351] [2022-10-17 10:44:53,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:44:53,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:44:53,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:44:53,724 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:44:53,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-17 10:44:53,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:44:53,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 10:44:53,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:44:53,824 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:44:53,824 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:44:53,866 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:44:53,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1197836351] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:44:53,866 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:44:53,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-10-17 10:44:53,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885733812] [2022-10-17 10:44:53,867 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:44:53,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:44:53,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:44:53,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:44:53,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:44:53,869 INFO L87 Difference]: Start difference. First operand 1061 states and 1598 transitions. Second operand has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:44:53,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:44:53,972 INFO L93 Difference]: Finished difference Result 2462 states and 3872 transitions. [2022-10-17 10:44:53,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:44:53,972 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-10-17 10:44:53,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:44:53,987 INFO L225 Difference]: With dead ends: 2462 [2022-10-17 10:44:53,988 INFO L226 Difference]: Without dead ends: 2460 [2022-10-17 10:44:53,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:44:53,991 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 121 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:44:53,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 111 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:44:53,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2460 states. [2022-10-17 10:44:54,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2460 to 2130. [2022-10-17 10:44:54,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2130 states, 2122 states have (on average 1.5221489161168709) internal successors, (3230), 2129 states have internal predecessors, (3230), 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) [2022-10-17 10:44:54,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2130 states to 2130 states and 3230 transitions. [2022-10-17 10:44:54,083 INFO L78 Accepts]: Start accepts. Automaton has 2130 states and 3230 transitions. Word has length 19 [2022-10-17 10:44:54,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:44:54,083 INFO L495 AbstractCegarLoop]: Abstraction has 2130 states and 3230 transitions. [2022-10-17 10:44:54,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:44:54,083 INFO L276 IsEmpty]: Start isEmpty. Operand 2130 states and 3230 transitions. [2022-10-17 10:44:54,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-17 10:44:54,084 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:44:54,084 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 1, 1, 1] [2022-10-17 10:44:54,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-17 10:44:54,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:44:54,312 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-17 10:44:54,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:44:54,313 INFO L85 PathProgramCache]: Analyzing trace with hash -816359916, now seen corresponding path program 2 times [2022-10-17 10:44:54,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:44:54,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130371042] [2022-10-17 10:44:54,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:44:54,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:44:54,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:44:54,355 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-17 10:44:54,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:44:54,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130371042] [2022-10-17 10:44:54,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130371042] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:44:54,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1906087960] [2022-10-17 10:44:54,355 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-17 10:44:54,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:44:54,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:44:54,356 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:44:54,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-17 10:44:54,384 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-17 10:44:54,384 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 10:44:54,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 10:44:54,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:44:54,420 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-17 10:44:54,420 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:44:54,466 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-17 10:44:54,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1906087960] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:44:54,467 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:44:54,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-10-17 10:44:54,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908671303] [2022-10-17 10:44:54,470 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:44:54,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:44:54,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:44:54,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:44:54,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:44:54,474 INFO L87 Difference]: Start difference. First operand 2130 states and 3230 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:44:54,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:44:54,550 INFO L93 Difference]: Finished difference Result 2130 states and 3230 transitions. [2022-10-17 10:44:54,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-17 10:44:54,550 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-10-17 10:44:54,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:44:54,563 INFO L225 Difference]: With dead ends: 2130 [2022-10-17 10:44:54,563 INFO L226 Difference]: Without dead ends: 2129 [2022-10-17 10:44:54,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-10-17 10:44:54,567 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 51 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:44:54,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 55 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:44:54,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2129 states. [2022-10-17 10:44:54,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2129 to 1799. [2022-10-17 10:44:54,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1799 states, 1792 states have (on average 1.4871651785714286) internal successors, (2665), 1798 states have internal predecessors, (2665), 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) [2022-10-17 10:44:54,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1799 states to 1799 states and 2665 transitions. [2022-10-17 10:44:54,639 INFO L78 Accepts]: Start accepts. Automaton has 1799 states and 2665 transitions. Word has length 20 [2022-10-17 10:44:54,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:44:54,639 INFO L495 AbstractCegarLoop]: Abstraction has 1799 states and 2665 transitions. [2022-10-17 10:44:54,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:44:54,640 INFO L276 IsEmpty]: Start isEmpty. Operand 1799 states and 2665 transitions. [2022-10-17 10:44:54,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-17 10:44:54,641 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:44:54,642 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:44:54,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-17 10:44:54,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:44:54,856 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-17 10:44:54,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:44:54,857 INFO L85 PathProgramCache]: Analyzing trace with hash -333612156, now seen corresponding path program 1 times [2022-10-17 10:44:54,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:44:54,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204500233] [2022-10-17 10:44:54,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:44:54,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:44:54,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:44:54,897 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:44:54,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:44:54,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204500233] [2022-10-17 10:44:54,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204500233] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:44:54,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2099621031] [2022-10-17 10:44:54,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:44:54,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:44:54,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:44:54,900 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:44:54,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-17 10:44:54,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:44:54,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 10:44:54,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:44:54,968 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:44:54,968 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:44:55,010 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:44:55,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2099621031] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:44:55,011 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:44:55,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-10-17 10:44:55,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387477328] [2022-10-17 10:44:55,011 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:44:55,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:44:55,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:44:55,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:44:55,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:44:55,012 INFO L87 Difference]: Start difference. First operand 1799 states and 2665 transitions. Second operand has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 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) [2022-10-17 10:44:55,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:44:55,135 INFO L93 Difference]: Finished difference Result 3111 states and 4689 transitions. [2022-10-17 10:44:55,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:44:55,135 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 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 21 [2022-10-17 10:44:55,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:44:55,154 INFO L225 Difference]: With dead ends: 3111 [2022-10-17 10:44:55,155 INFO L226 Difference]: Without dead ends: 3109 [2022-10-17 10:44:55,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:44:55,158 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 96 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:44:55,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 64 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:44:55,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3109 states. [2022-10-17 10:44:55,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3109 to 2296. [2022-10-17 10:44:55,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2296 states, 2290 states have (on average 1.459825327510917) internal successors, (3343), 2295 states have internal predecessors, (3343), 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) [2022-10-17 10:44:55,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2296 states to 2296 states and 3343 transitions. [2022-10-17 10:44:55,274 INFO L78 Accepts]: Start accepts. Automaton has 2296 states and 3343 transitions. Word has length 21 [2022-10-17 10:44:55,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:44:55,274 INFO L495 AbstractCegarLoop]: Abstraction has 2296 states and 3343 transitions. [2022-10-17 10:44:55,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 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) [2022-10-17 10:44:55,275 INFO L276 IsEmpty]: Start isEmpty. Operand 2296 states and 3343 transitions. [2022-10-17 10:44:55,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-10-17 10:44:55,276 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:44:55,276 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1] [2022-10-17 10:44:55,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-17 10:44:55,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-10-17 10:44:55,498 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-17 10:44:55,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:44:55,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1881216384, now seen corresponding path program 1 times [2022-10-17 10:44:55,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:44:55,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270642557] [2022-10-17 10:44:55,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:44:55,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:44:55,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:44:55,551 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:44:55,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:44:55,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270642557] [2022-10-17 10:44:55,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270642557] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:44:55,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1319917851] [2022-10-17 10:44:55,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:44:55,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:44:55,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:44:55,553 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:44:55,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-17 10:44:55,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:44:55,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:44:55,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:44:55,661 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:44:55,661 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:44:55,727 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:44:55,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1319917851] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:44:55,728 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:44:55,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-10-17 10:44:55,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730272118] [2022-10-17 10:44:55,729 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:44:55,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-17 10:44:55,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:44:55,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-17 10:44:55,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-10-17 10:44:55,731 INFO L87 Difference]: Start difference. First operand 2296 states and 3343 transitions. Second operand has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 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) [2022-10-17 10:44:55,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:44:55,957 INFO L93 Difference]: Finished difference Result 6601 states and 9698 transitions. [2022-10-17 10:44:55,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-17 10:44:55,958 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 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 26 [2022-10-17 10:44:55,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:44:55,995 INFO L225 Difference]: With dead ends: 6601 [2022-10-17 10:44:55,995 INFO L226 Difference]: Without dead ends: 6600 [2022-10-17 10:44:56,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-10-17 10:44:56,002 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 173 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:44:56,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 145 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 10:44:56,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6600 states. [2022-10-17 10:44:56,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6600 to 5401. [2022-10-17 10:44:56,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5401 states, 5395 states have (on average 1.4556070435588508) internal successors, (7853), 5400 states have internal predecessors, (7853), 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) [2022-10-17 10:44:56,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5401 states to 5401 states and 7853 transitions. [2022-10-17 10:44:56,261 INFO L78 Accepts]: Start accepts. Automaton has 5401 states and 7853 transitions. Word has length 26 [2022-10-17 10:44:56,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:44:56,262 INFO L495 AbstractCegarLoop]: Abstraction has 5401 states and 7853 transitions. [2022-10-17 10:44:56,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 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) [2022-10-17 10:44:56,262 INFO L276 IsEmpty]: Start isEmpty. Operand 5401 states and 7853 transitions. [2022-10-17 10:44:56,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-10-17 10:44:56,263 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:44:56,263 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1] [2022-10-17 10:44:56,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-17 10:44:56,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-10-17 10:44:56,476 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-17 10:44:56,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:44:56,477 INFO L85 PathProgramCache]: Analyzing trace with hash -205460357, now seen corresponding path program 1 times [2022-10-17 10:44:56,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:44:56,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841131587] [2022-10-17 10:44:56,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:44:56,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:44:56,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:44:56,556 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:44:56,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:44:56,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841131587] [2022-10-17 10:44:56,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841131587] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:44:56,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [240154785] [2022-10-17 10:44:56,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:44:56,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:44:56,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:44:56,559 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:44:56,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-17 10:44:56,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:44:56,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:44:56,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:44:56,639 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:44:56,640 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:44:56,703 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:44:56,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [240154785] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:44:56,703 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:44:56,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-10-17 10:44:56,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905215507] [2022-10-17 10:44:56,704 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:44:56,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-17 10:44:56,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:44:56,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-17 10:44:56,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-10-17 10:44:56,706 INFO L87 Difference]: Start difference. First operand 5401 states and 7853 transitions. Second operand has 8 states, 7 states have (on average 9.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:44:57,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:44:57,198 INFO L93 Difference]: Finished difference Result 15529 states and 22802 transitions. [2022-10-17 10:44:57,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-17 10:44:57,199 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-10-17 10:44:57,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:44:57,280 INFO L225 Difference]: With dead ends: 15529 [2022-10-17 10:44:57,280 INFO L226 Difference]: Without dead ends: 15528 [2022-10-17 10:44:57,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-10-17 10:44:57,292 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 172 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:44:57,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 145 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 10:44:57,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15528 states. [2022-10-17 10:44:57,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15528 to 12718. [2022-10-17 10:44:57,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12718 states, 12712 states have (on average 1.4511485210824417) internal successors, (18447), 12717 states have internal predecessors, (18447), 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) [2022-10-17 10:44:58,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12718 states to 12718 states and 18447 transitions. [2022-10-17 10:44:58,006 INFO L78 Accepts]: Start accepts. Automaton has 12718 states and 18447 transitions. Word has length 32 [2022-10-17 10:44:58,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:44:58,007 INFO L495 AbstractCegarLoop]: Abstraction has 12718 states and 18447 transitions. [2022-10-17 10:44:58,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:44:58,008 INFO L276 IsEmpty]: Start isEmpty. Operand 12718 states and 18447 transitions. [2022-10-17 10:44:58,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-10-17 10:44:58,012 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:44:58,012 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 1, 1, 1] [2022-10-17 10:44:58,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-17 10:44:58,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-10-17 10:44:58,238 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-17 10:44:58,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:44:58,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1919460695, now seen corresponding path program 2 times [2022-10-17 10:44:58,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:44:58,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453011766] [2022-10-17 10:44:58,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:44:58,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:44:58,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:44:58,383 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:44:58,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:44:58,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453011766] [2022-10-17 10:44:58,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453011766] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:44:58,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1113427877] [2022-10-17 10:44:58,384 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-17 10:44:58,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:44:58,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:44:58,385 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:44:58,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-17 10:44:58,425 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-17 10:44:58,425 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 10:44:58,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-17 10:44:58,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:44:58,492 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:44:58,492 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:44:58,612 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:44:58,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1113427877] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:44:58,613 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:44:58,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-10-17 10:44:58,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798482616] [2022-10-17 10:44:58,615 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:44:58,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-17 10:44:58,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:44:58,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-17 10:44:58,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-10-17 10:44:58,616 INFO L87 Difference]: Start difference. First operand 12718 states and 18447 transitions. Second operand has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 12 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) [2022-10-17 10:44:59,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:44:59,931 INFO L93 Difference]: Finished difference Result 43313 states and 64320 transitions. [2022-10-17 10:44:59,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-17 10:44:59,932 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 12 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 [2022-10-17 10:44:59,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:45:00,050 INFO L225 Difference]: With dead ends: 43313 [2022-10-17 10:45:00,050 INFO L226 Difference]: Without dead ends: 43311 [2022-10-17 10:45:00,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-10-17 10:45:00,081 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 373 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:45:00,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 227 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 10:45:00,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43311 states. [2022-10-17 10:45:01,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43311 to 27376. [2022-10-17 10:45:01,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27376 states, 27370 states have (on average 1.4275118743149433) internal successors, (39071), 27375 states have internal predecessors, (39071), 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) [2022-10-17 10:45:01,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27376 states to 27376 states and 39071 transitions. [2022-10-17 10:45:01,426 INFO L78 Accepts]: Start accepts. Automaton has 27376 states and 39071 transitions. Word has length 36 [2022-10-17 10:45:01,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:45:01,428 INFO L495 AbstractCegarLoop]: Abstraction has 27376 states and 39071 transitions. [2022-10-17 10:45:01,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 12 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) [2022-10-17 10:45:01,429 INFO L276 IsEmpty]: Start isEmpty. Operand 27376 states and 39071 transitions. [2022-10-17 10:45:01,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-10-17 10:45:01,433 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:45:01,433 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1] [2022-10-17 10:45:01,475 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:01,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-17 10:45:01,652 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-17 10:45:01,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:01,653 INFO L85 PathProgramCache]: Analyzing trace with hash 2018802258, now seen corresponding path program 2 times [2022-10-17 10:45:01,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:01,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682946916] [2022-10-17 10:45:01,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:01,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:01,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:01,775 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:45:01,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:45:01,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682946916] [2022-10-17 10:45:01,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682946916] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:45:01,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1640976137] [2022-10-17 10:45:01,777 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-17 10:45:01,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:45:01,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:01,778 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:45:01,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-17 10:45:01,829 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-17 10:45:01,829 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 10:45:01,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-17 10:45:01,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:45:01,911 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:45:01,911 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:45:02,016 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:45:02,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1640976137] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:45:02,016 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:45:02,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-10-17 10:45:02,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778181416] [2022-10-17 10:45:02,017 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:45:02,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-17 10:45:02,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:45:02,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-17 10:45:02,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-10-17 10:45:02,019 INFO L87 Difference]: Start difference. First operand 27376 states and 39071 transitions. Second operand has 12 states, 11 states have (on average 8.272727272727273) internal successors, (91), 12 states have internal predecessors, (91), 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) [2022-10-17 10:45:04,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:45:04,295 INFO L93 Difference]: Finished difference Result 93113 states and 136146 transitions. [2022-10-17 10:45:04,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-17 10:45:04,296 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.272727272727273) internal successors, (91), 12 states have internal predecessors, (91), 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 46 [2022-10-17 10:45:04,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:45:04,567 INFO L225 Difference]: With dead ends: 93113 [2022-10-17 10:45:04,567 INFO L226 Difference]: Without dead ends: 93111 [2022-10-17 10:45:04,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-10-17 10:45:04,595 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 352 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:45:04,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 227 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 10:45:04,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93111 states. [2022-10-17 10:45:06,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93111 to 58898. [2022-10-17 10:45:06,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58898 states, 58892 states have (on average 1.405063506078924) internal successors, (82747), 58897 states have internal predecessors, (82747), 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) [2022-10-17 10:45:07,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58898 states to 58898 states and 82747 transitions. [2022-10-17 10:45:07,165 INFO L78 Accepts]: Start accepts. Automaton has 58898 states and 82747 transitions. Word has length 46 [2022-10-17 10:45:07,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:45:07,167 INFO L495 AbstractCegarLoop]: Abstraction has 58898 states and 82747 transitions. [2022-10-17 10:45:07,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.272727272727273) internal successors, (91), 12 states have internal predecessors, (91), 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) [2022-10-17 10:45:07,167 INFO L276 IsEmpty]: Start isEmpty. Operand 58898 states and 82747 transitions. [2022-10-17 10:45:07,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-10-17 10:45:07,174 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:45:07,174 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 1, 1, 1] [2022-10-17 10:45:07,214 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:07,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:45:07,400 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-17 10:45:07,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:07,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1183604440, now seen corresponding path program 2 times [2022-10-17 10:45:07,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:07,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046585929] [2022-10-17 10:45:07,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:07,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:07,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:07,593 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:45:07,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:45:07,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046585929] [2022-10-17 10:45:07,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046585929] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:45:07,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [356753298] [2022-10-17 10:45:07,594 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-17 10:45:07,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:45:07,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:07,596 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:45:07,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-17 10:45:07,653 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-17 10:45:07,653 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 10:45:07,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-17 10:45:07,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:45:07,767 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:45:07,767 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:45:07,948 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:45:07,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [356753298] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:45:07,949 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:45:07,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2022-10-17 10:45:07,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817026058] [2022-10-17 10:45:07,949 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:45:07,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-17 10:45:07,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:45:07,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-17 10:45:07,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2022-10-17 10:45:07,951 INFO L87 Difference]: Start difference. First operand 58898 states and 82747 transitions. Second operand has 16 states, 15 states have (on average 7.666666666666667) internal successors, (115), 16 states have internal predecessors, (115), 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) [2022-10-17 10:45:11,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:45:11,803 INFO L93 Difference]: Finished difference Result 207477 states and 294185 transitions. [2022-10-17 10:45:11,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-17 10:45:11,804 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 7.666666666666667) internal successors, (115), 16 states have internal predecessors, (115), 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 58 [2022-10-17 10:45:11,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:45:12,484 INFO L225 Difference]: With dead ends: 207477 [2022-10-17 10:45:12,484 INFO L226 Difference]: Without dead ends: 207476 [2022-10-17 10:45:12,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2022-10-17 10:45:12,546 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 569 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 569 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-17 10:45:12,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [569 Valid, 306 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-17 10:45:12,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207476 states. [2022-10-17 10:45:16,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207476 to 115068. [2022-10-17 10:45:16,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115068 states, 115062 states have (on average 1.3967860805478785) internal successors, (160717), 115067 states have internal predecessors, (160717), 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) [2022-10-17 10:45:17,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115068 states to 115068 states and 160717 transitions. [2022-10-17 10:45:17,448 INFO L78 Accepts]: Start accepts. Automaton has 115068 states and 160717 transitions. Word has length 58 [2022-10-17 10:45:17,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:45:17,449 INFO L495 AbstractCegarLoop]: Abstraction has 115068 states and 160717 transitions. [2022-10-17 10:45:17,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 7.666666666666667) internal successors, (115), 16 states have internal predecessors, (115), 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) [2022-10-17 10:45:17,449 INFO L276 IsEmpty]: Start isEmpty. Operand 115068 states and 160717 transitions. [2022-10-17 10:45:17,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-10-17 10:45:17,463 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:45:17,463 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 1, 1, 1] [2022-10-17 10:45:17,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:17,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-10-17 10:45:17,688 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-17 10:45:17,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:17,689 INFO L85 PathProgramCache]: Analyzing trace with hash 921640519, now seen corresponding path program 2 times [2022-10-17 10:45:17,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:17,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402145939] [2022-10-17 10:45:17,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:17,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:17,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:17,838 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:45:17,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:45:17,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402145939] [2022-10-17 10:45:17,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402145939] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:45:17,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [997999501] [2022-10-17 10:45:17,839 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-17 10:45:17,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:45:17,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:17,844 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:45:17,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1508d389-5697-4d5f-aa89-dd13faf81ce5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-17 10:45:17,897 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-17 10:45:17,897 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 10:45:17,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-17 10:45:17,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:45:18,002 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:45:18,002 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:45:18,206 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:45:18,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [997999501] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:45:18,207 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:45:18,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2022-10-17 10:45:18,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917600294] [2022-10-17 10:45:18,207 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:45:18,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-17 10:45:18,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:45:18,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-17 10:45:18,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2022-10-17 10:45:18,209 INFO L87 Difference]: Start difference. First operand 115068 states and 160717 transitions. Second operand has 16 states, 15 states have (on average 9.533333333333333) internal successors, (143), 16 states have internal predecessors, (143), 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)