./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/busybox-1.22.0/hostid.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/config/AutomizerReach.xml -i ../../sv-benchmarks/c/busybox-1.22.0/hostid.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg --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 de0fc62ae58e6d221c3194714bc6cea21909b72dd1b37b4566b87d84683f34c8 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:10:24,696 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:10:24,698 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:10:24,756 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:10:24,757 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:10:24,762 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:10:24,764 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:10:24,768 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:10:24,771 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:10:24,778 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:10:24,779 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:10:24,780 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:10:24,780 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:10:24,781 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:10:24,783 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:10:24,784 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:10:24,785 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:10:24,786 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:10:24,790 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:10:24,799 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:10:24,801 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:10:24,803 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:10:24,808 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:10:24,809 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:10:24,812 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:10:24,813 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:10:24,813 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:10:24,815 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:10:24,815 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:10:24,816 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:10:24,817 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:10:24,817 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:10:24,819 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:10:24,820 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:10:24,822 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:10:24,822 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:10:24,822 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:10:24,823 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:10:24,823 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:10:24,824 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:10:24,824 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:10:24,825 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-10-28 09:10:24,862 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:10:24,862 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:10:24,862 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:10:24,863 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:10:24,870 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:10:24,870 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:10:24,870 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:10:24,870 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:10:24,871 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:10:24,871 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:10:24,872 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:10:24,872 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 09:10:24,872 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:10:24,872 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 09:10:24,872 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-28 09:10:24,873 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:10:24,873 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:10:24,873 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 09:10:24,873 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:10:24,873 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:10:24,874 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:10:24,874 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:10:24,874 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:10:24,874 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:10:24,874 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 09:10:24,875 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:10:24,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 09:10:24,875 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 09:10:24,875 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:10:24,876 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_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> de0fc62ae58e6d221c3194714bc6cea21909b72dd1b37b4566b87d84683f34c8 [2021-10-28 09:10:25,125 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:10:25,145 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:10:25,148 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:10:25,149 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:10:25,150 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:10:25,151 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/busybox-1.22.0/hostid.i [2021-10-28 09:10:25,210 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/data/32688202d/6379ca6151e545eda558ca158f470e55/FLAG9e58ca643 [2021-10-28 09:10:25,768 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:10:25,769 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/sv-benchmarks/c/busybox-1.22.0/hostid.i [2021-10-28 09:10:25,791 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/data/32688202d/6379ca6151e545eda558ca158f470e55/FLAG9e58ca643 [2021-10-28 09:10:26,005 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/data/32688202d/6379ca6151e545eda558ca158f470e55 [2021-10-28 09:10:26,007 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:10:26,008 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:10:26,025 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:10:26,025 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:10:26,028 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:10:26,028 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:10:26" (1/1) ... [2021-10-28 09:10:26,029 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7502a39d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:10:26, skipping insertion in model container [2021-10-28 09:10:26,029 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:10:26" (1/1) ... [2021-10-28 09:10:26,036 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:10:26,094 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:10:27,091 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:10:27,102 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:10:27,169 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:10:27,305 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:10:27,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:10:27 WrapperNode [2021-10-28 09:10:27,306 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:10:27,307 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:10:27,307 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:10:27,307 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:10:27,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:10:27" (1/1) ... [2021-10-28 09:10:27,350 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:10:27" (1/1) ... [2021-10-28 09:10:27,384 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:10:27,384 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:10:27,385 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:10:27,385 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:10:27,393 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:10:27" (1/1) ... [2021-10-28 09:10:27,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:10:27" (1/1) ... [2021-10-28 09:10:27,400 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:10:27" (1/1) ... [2021-10-28 09:10:27,400 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:10:27" (1/1) ... [2021-10-28 09:10:27,415 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:10:27" (1/1) ... [2021-10-28 09:10:27,419 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:10:27" (1/1) ... [2021-10-28 09:10:27,423 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:10:27" (1/1) ... [2021-10-28 09:10:27,430 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:10:27,431 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:10:27,431 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:10:27,431 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:10:27,432 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:10:27" (1/1) ... [2021-10-28 09:10:27,440 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:10:27,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:10:27,465 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 09:10:27,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 09:10:27,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 09:10:27,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 09:10:27,509 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2021-10-28 09:10:27,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 09:10:27,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:10:27,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:10:27,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:10:27,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-28 09:10:27,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 09:10:27,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 09:10:28,020 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:10:28,021 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2021-10-28 09:10:28,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:10:28 BoogieIcfgContainer [2021-10-28 09:10:28,022 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:10:28,024 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 09:10:28,024 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 09:10:28,027 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 09:10:28,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:10:26" (1/3) ... [2021-10-28 09:10:28,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14e2ad7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:10:28, skipping insertion in model container [2021-10-28 09:10:28,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:10:27" (2/3) ... [2021-10-28 09:10:28,029 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14e2ad7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:10:28, skipping insertion in model container [2021-10-28 09:10:28,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:10:28" (3/3) ... [2021-10-28 09:10:28,030 INFO L111 eAbstractionObserver]: Analyzing ICFG hostid.i [2021-10-28 09:10:28,035 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 09:10:28,035 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2021-10-28 09:10:28,080 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 09:10:28,085 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 09:10:28,086 INFO L340 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2021-10-28 09:10:28,099 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 33 states have (on average 1.7878787878787878) internal successors, (59), 49 states have internal predecessors, (59), 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) [2021-10-28 09:10:28,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-28 09:10:28,103 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:10:28,104 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-28 09:10:28,104 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-10-28 09:10:28,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:10:28,109 INFO L85 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2021-10-28 09:10:28,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:10:28,148 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064797443] [2021-10-28 09:10:28,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:10:28,149 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:10:28,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:10:28,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:10:28,542 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:10:28,542 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064797443] [2021-10-28 09:10:28,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064797443] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:10:28,543 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:10:28,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 09:10:28,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871200149] [2021-10-28 09:10:28,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:10:28,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:10:28,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:10:28,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:10:28,569 INFO L87 Difference]: Start difference. First operand has 50 states, 33 states have (on average 1.7878787878787878) internal successors, (59), 49 states have internal predecessors, (59), 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) [2021-10-28 09:10:28,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:10:28,612 INFO L93 Difference]: Finished difference Result 98 states and 116 transitions. [2021-10-28 09:10:28,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:10:28,614 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 [2021-10-28 09:10:28,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:10:28,621 INFO L225 Difference]: With dead ends: 98 [2021-10-28 09:10:28,622 INFO L226 Difference]: Without dead ends: 49 [2021-10-28 09:10:28,624 INFO L786 BasicCegarLoop]: 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 [2021-10-28 09:10:28,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-10-28 09:10:28,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2021-10-28 09:10:28,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 33 states have (on average 1.606060606060606) internal successors, (53), 48 states have internal predecessors, (53), 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) [2021-10-28 09:10:28,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 53 transitions. [2021-10-28 09:10:28,666 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 53 transitions. Word has length 4 [2021-10-28 09:10:28,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:10:28,667 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 53 transitions. [2021-10-28 09:10:28,668 INFO L471 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) [2021-10-28 09:10:28,668 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 53 transitions. [2021-10-28 09:10:28,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-28 09:10:28,669 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:10:28,669 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2021-10-28 09:10:28,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 09:10:28,670 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-10-28 09:10:28,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:10:28,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1809705867, now seen corresponding path program 1 times [2021-10-28 09:10:28,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:10:28,676 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262609072] [2021-10-28 09:10:28,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:10:28,677 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:10:28,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:10:28,837 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 09:10:28,837 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:10:28,838 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262609072] [2021-10-28 09:10:28,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262609072] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:10:28,838 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:10:28,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 09:10:28,839 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432497981] [2021-10-28 09:10:28,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:10:28,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:10:28,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:10:28,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:10:28,844 INFO L87 Difference]: Start difference. First operand 49 states and 53 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:10:28,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:10:28,866 INFO L93 Difference]: Finished difference Result 49 states and 53 transitions. [2021-10-28 09:10:28,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:10:28,867 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-28 09:10:28,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:10:28,868 INFO L225 Difference]: With dead ends: 49 [2021-10-28 09:10:28,869 INFO L226 Difference]: Without dead ends: 48 [2021-10-28 09:10:28,869 INFO L786 BasicCegarLoop]: 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 [2021-10-28 09:10:28,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-10-28 09:10:28,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2021-10-28 09:10:28,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 33 states have (on average 1.5757575757575757) internal successors, (52), 47 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:10:28,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2021-10-28 09:10:28,882 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 7 [2021-10-28 09:10:28,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:10:28,883 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2021-10-28 09:10:28,883 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:10:28,884 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2021-10-28 09:10:28,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-28 09:10:28,885 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:10:28,886 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2021-10-28 09:10:28,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 09:10:28,886 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-10-28 09:10:28,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:10:28,897 INFO L85 PathProgramCache]: Analyzing trace with hash 266307074, now seen corresponding path program 1 times [2021-10-28 09:10:28,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:10:28,898 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492526982] [2021-10-28 09:10:28,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:10:28,899 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:10:28,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:10:29,026 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:10:29,026 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:10:29,026 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492526982] [2021-10-28 09:10:29,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492526982] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:10:29,027 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [885104083] [2021-10-28 09:10:29,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:10:29,028 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:10:29,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:10:29,032 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:10:29,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 09:10:29,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:10:29,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 09:10:29,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:10:29,274 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:10:29,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [885104083] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:10:29,275 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:10:29,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2021-10-28 09:10:29,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98007709] [2021-10-28 09:10:29,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:10:29,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:10:29,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:10:29,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:10:29,284 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:10:29,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:10:29,316 INFO L93 Difference]: Finished difference Result 48 states and 52 transitions. [2021-10-28 09:10:29,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:10:29,317 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-28 09:10:29,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:10:29,319 INFO L225 Difference]: With dead ends: 48 [2021-10-28 09:10:29,319 INFO L226 Difference]: Without dead ends: 47 [2021-10-28 09:10:29,319 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:10:29,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-10-28 09:10:29,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 45. [2021-10-28 09:10:29,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 31 states have (on average 1.5806451612903225) internal successors, (49), 44 states have internal predecessors, (49), 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) [2021-10-28 09:10:29,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2021-10-28 09:10:29,330 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 8 [2021-10-28 09:10:29,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:10:29,330 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2021-10-28 09:10:29,330 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:10:29,330 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2021-10-28 09:10:29,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-28 09:10:29,331 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:10:29,331 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:10:29,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-28 09:10:29,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:10:29,547 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-10-28 09:10:29,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:10:29,547 INFO L85 PathProgramCache]: Analyzing trace with hash -334468778, now seen corresponding path program 1 times [2021-10-28 09:10:29,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:10:29,548 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730926365] [2021-10-28 09:10:29,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:10:29,548 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:10:29,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:10:29,631 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:10:29,631 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:10:29,632 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730926365] [2021-10-28 09:10:29,632 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730926365] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:10:29,632 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [143038680] [2021-10-28 09:10:29,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:10:29,633 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:10:29,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:10:29,634 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:10:29,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-28 09:10:29,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:10:29,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 09:10:29,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:10:29,828 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:10:29,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [143038680] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:10:29,829 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:10:29,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-10-28 09:10:29,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965744564] [2021-10-28 09:10:29,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 09:10:29,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:10:29,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:10:29,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:10:29,831 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) [2021-10-28 09:10:29,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:10:29,858 INFO L93 Difference]: Finished difference Result 89 states and 97 transitions. [2021-10-28 09:10:29,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:10:29,861 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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 [2021-10-28 09:10:29,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:10:29,862 INFO L225 Difference]: With dead ends: 89 [2021-10-28 09:10:29,862 INFO L226 Difference]: Without dead ends: 50 [2021-10-28 09:10:29,863 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:10:29,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-10-28 09:10:29,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 48. [2021-10-28 09:10:29,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 34 states have (on average 1.5294117647058822) internal successors, (52), 47 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:10:29,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2021-10-28 09:10:29,867 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 9 [2021-10-28 09:10:29,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:10:29,868 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2021-10-28 09:10:29,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) [2021-10-28 09:10:29,868 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2021-10-28 09:10:29,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-28 09:10:29,869 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:10:29,869 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2021-10-28 09:10:29,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-28 09:10:30,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:10:30,083 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-10-28 09:10:30,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:10:30,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1759164880, now seen corresponding path program 2 times [2021-10-28 09:10:30,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:10:30,084 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713450948] [2021-10-28 09:10:30,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:10:30,084 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:10:30,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:10:30,164 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:10:30,164 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:10:30,164 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713450948] [2021-10-28 09:10:30,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713450948] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:10:30,165 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [195637517] [2021-10-28 09:10:30,165 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 09:10:30,165 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:10:30,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:10:30,166 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:10:30,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-28 09:10:30,268 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-28 09:10:30,268 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:10:30,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 09:10:30,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:10:30,400 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-28 09:10:30,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [195637517] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:10:30,406 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:10:30,407 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-10-28 09:10:30,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663393380] [2021-10-28 09:10:30,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:10:30,407 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:10:30,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:10:30,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:10:30,409 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:10:30,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:10:30,494 INFO L93 Difference]: Finished difference Result 48 states and 52 transitions. [2021-10-28 09:10:30,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:10:30,495 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-28 09:10:30,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:10:30,496 INFO L225 Difference]: With dead ends: 48 [2021-10-28 09:10:30,496 INFO L226 Difference]: Without dead ends: 40 [2021-10-28 09:10:30,497 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:10:30,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-10-28 09:10:30,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2021-10-28 09:10:30,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 34 states have (on average 1.2941176470588236) internal successors, (44), 39 states have internal predecessors, (44), 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) [2021-10-28 09:10:30,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2021-10-28 09:10:30,510 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 12 [2021-10-28 09:10:30,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:10:30,510 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2021-10-28 09:10:30,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:10:30,511 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2021-10-28 09:10:30,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-28 09:10:30,512 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:10:30,512 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:10:30,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-28 09:10:30,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:10:30,727 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-10-28 09:10:30,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:10:30,728 INFO L85 PathProgramCache]: Analyzing trace with hash -172633462, now seen corresponding path program 1 times [2021-10-28 09:10:30,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:10:30,728 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608163277] [2021-10-28 09:10:30,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:10:30,729 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:10:30,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:10:30,797 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-28 09:10:30,797 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:10:30,797 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608163277] [2021-10-28 09:10:30,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608163277] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:10:30,797 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:10:30,797 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:10:30,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106559989] [2021-10-28 09:10:30,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:10:30,798 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:10:30,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:10:30,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:10:30,799 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2021-10-28 09:10:30,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:10:30,816 INFO L93 Difference]: Finished difference Result 64 states and 74 transitions. [2021-10-28 09:10:30,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:10:30,817 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 22 [2021-10-28 09:10:30,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:10:30,817 INFO L225 Difference]: With dead ends: 64 [2021-10-28 09:10:30,818 INFO L226 Difference]: Without dead ends: 43 [2021-10-28 09:10:30,818 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:10:30,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-10-28 09:10:30,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2021-10-28 09:10:30,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 37 states have (on average 1.2702702702702702) internal successors, (47), 42 states have internal predecessors, (47), 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) [2021-10-28 09:10:30,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2021-10-28 09:10:30,822 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 22 [2021-10-28 09:10:30,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:10:30,823 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2021-10-28 09:10:30,823 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2021-10-28 09:10:30,823 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2021-10-28 09:10:30,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-28 09:10:30,824 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:10:30,824 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:10:30,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-28 09:10:30,824 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-10-28 09:10:30,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:10:30,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1845883481, now seen corresponding path program 1 times [2021-10-28 09:10:30,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:10:30,825 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732244428] [2021-10-28 09:10:30,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:10:30,826 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:10:30,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:10:30,901 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-28 09:10:30,901 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:10:30,901 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732244428] [2021-10-28 09:10:30,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732244428] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:10:30,902 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:10:30,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 09:10:30,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133640690] [2021-10-28 09:10:30,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:10:30,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:10:30,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:10:30,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:10:30,903 INFO L87 Difference]: Start difference. First operand 43 states and 47 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:10:30,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:10:30,931 INFO L93 Difference]: Finished difference Result 67 states and 74 transitions. [2021-10-28 09:10:30,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:10:30,931 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-10-28 09:10:30,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:10:30,932 INFO L225 Difference]: With dead ends: 67 [2021-10-28 09:10:30,932 INFO L226 Difference]: Without dead ends: 65 [2021-10-28 09:10:30,933 INFO L786 BasicCegarLoop]: 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 [2021-10-28 09:10:30,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-10-28 09:10:30,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 52. [2021-10-28 09:10:30,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 46 states have (on average 1.3043478260869565) internal successors, (60), 51 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) [2021-10-28 09:10:30,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 60 transitions. [2021-10-28 09:10:30,938 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 60 transitions. Word has length 25 [2021-10-28 09:10:30,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:10:30,939 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 60 transitions. [2021-10-28 09:10:30,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:10:30,939 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 60 transitions. [2021-10-28 09:10:30,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-28 09:10:30,940 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:10:30,940 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:10:30,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-28 09:10:30,940 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-10-28 09:10:30,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:10:30,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1845883426, now seen corresponding path program 1 times [2021-10-28 09:10:30,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:10:30,941 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595162218] [2021-10-28 09:10:30,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:10:30,941 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:10:30,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:10:31,005 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-28 09:10:31,005 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:10:31,005 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595162218] [2021-10-28 09:10:31,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595162218] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:10:31,005 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:10:31,006 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 09:10:31,006 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634246867] [2021-10-28 09:10:31,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:10:31,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:10:31,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:10:31,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:10:31,007 INFO L87 Difference]: Start difference. First operand 52 states and 60 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:10:31,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:10:31,020 INFO L93 Difference]: Finished difference Result 52 states and 60 transitions. [2021-10-28 09:10:31,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:10:31,020 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-10-28 09:10:31,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:10:31,021 INFO L225 Difference]: With dead ends: 52 [2021-10-28 09:10:31,021 INFO L226 Difference]: Without dead ends: 51 [2021-10-28 09:10:31,022 INFO L786 BasicCegarLoop]: 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 [2021-10-28 09:10:31,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-10-28 09:10:31,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2021-10-28 09:10:31,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 46 states have (on average 1.2608695652173914) internal successors, (58), 50 states have internal predecessors, (58), 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) [2021-10-28 09:10:31,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 58 transitions. [2021-10-28 09:10:31,027 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 58 transitions. Word has length 25 [2021-10-28 09:10:31,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:10:31,027 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 58 transitions. [2021-10-28 09:10:31,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:10:31,027 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 58 transitions. [2021-10-28 09:10:31,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-28 09:10:31,028 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:10:31,028 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:10:31,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-28 09:10:31,029 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-10-28 09:10:31,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:10:31,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1387811266, now seen corresponding path program 1 times [2021-10-28 09:10:31,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:10:31,029 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918315134] [2021-10-28 09:10:31,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:10:31,030 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:10:31,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:10:31,133 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-28 09:10:31,134 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:10:31,134 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918315134] [2021-10-28 09:10:31,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918315134] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:10:31,135 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [105488900] [2021-10-28 09:10:31,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:10:31,136 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:10:31,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:10:31,143 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:10:31,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-28 09:10:31,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:10:31,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:10:31,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:10:31,366 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-28 09:10:31,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [105488900] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:10:31,367 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:10:31,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 5] total 7 [2021-10-28 09:10:31,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340855604] [2021-10-28 09:10:31,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 09:10:31,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:10:31,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 09:10:31,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:10:31,370 INFO L87 Difference]: Start difference. First operand 51 states and 58 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 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) [2021-10-28 09:10:31,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:10:31,436 INFO L93 Difference]: Finished difference Result 108 states and 124 transitions. [2021-10-28 09:10:31,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 09:10:31,437 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 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 [2021-10-28 09:10:31,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:10:31,439 INFO L225 Difference]: With dead ends: 108 [2021-10-28 09:10:31,439 INFO L226 Difference]: Without dead ends: 66 [2021-10-28 09:10:31,440 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:10:31,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-10-28 09:10:31,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 49. [2021-10-28 09:10:31,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 45 states have (on average 1.2222222222222223) internal successors, (55), 48 states have internal predecessors, (55), 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) [2021-10-28 09:10:31,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 55 transitions. [2021-10-28 09:10:31,455 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 55 transitions. Word has length 26 [2021-10-28 09:10:31,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:10:31,456 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 55 transitions. [2021-10-28 09:10:31,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 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) [2021-10-28 09:10:31,456 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 55 transitions. [2021-10-28 09:10:31,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-28 09:10:31,458 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:10:31,458 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:10:31,496 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-28 09:10:31,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:10:31,679 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-10-28 09:10:31,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:10:31,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1627182508, now seen corresponding path program 1 times [2021-10-28 09:10:31,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:10:31,680 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417736587] [2021-10-28 09:10:31,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:10:31,681 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:10:31,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:10:31,750 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-28 09:10:31,750 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:10:31,751 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417736587] [2021-10-28 09:10:31,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417736587] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:10:31,751 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:10:31,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 09:10:31,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275459980] [2021-10-28 09:10:31,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:10:31,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:10:31,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:10:31,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:10:31,753 INFO L87 Difference]: Start difference. First operand 49 states and 55 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 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) [2021-10-28 09:10:31,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:10:31,766 INFO L93 Difference]: Finished difference Result 54 states and 60 transitions. [2021-10-28 09:10:31,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:10:31,767 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 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 31 [2021-10-28 09:10:31,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:10:31,771 INFO L225 Difference]: With dead ends: 54 [2021-10-28 09:10:31,771 INFO L226 Difference]: Without dead ends: 52 [2021-10-28 09:10:31,771 INFO L786 BasicCegarLoop]: 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 [2021-10-28 09:10:31,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-10-28 09:10:31,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-10-28 09:10:31,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 48 states have (on average 1.2083333333333333) internal successors, (58), 51 states have internal predecessors, (58), 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) [2021-10-28 09:10:31,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 58 transitions. [2021-10-28 09:10:31,779 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 58 transitions. Word has length 31 [2021-10-28 09:10:31,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:10:31,779 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 58 transitions. [2021-10-28 09:10:31,780 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 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) [2021-10-28 09:10:31,780 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 58 transitions. [2021-10-28 09:10:31,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-28 09:10:31,787 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:10:31,787 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:10:31,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-28 09:10:31,788 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-10-28 09:10:31,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:10:31,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1901645191, now seen corresponding path program 1 times [2021-10-28 09:10:31,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:10:31,789 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116248294] [2021-10-28 09:10:31,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:10:31,789 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:10:31,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:10:31,906 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-28 09:10:31,907 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:10:31,907 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116248294] [2021-10-28 09:10:31,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116248294] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:10:31,908 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1199234138] [2021-10-28 09:10:31,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:10:31,908 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:10:31,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:10:31,915 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:10:31,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-28 09:10:32,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:10:32,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 09:10:32,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:10:32,154 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 09:10:32,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1199234138] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:10:32,154 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:10:32,155 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 6] total 8 [2021-10-28 09:10:32,157 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865458025] [2021-10-28 09:10:32,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 09:10:32,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:10:32,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 09:10:32,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:10:32,159 INFO L87 Difference]: Start difference. First operand 52 states and 58 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 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) [2021-10-28 09:10:32,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:10:32,207 INFO L93 Difference]: Finished difference Result 100 states and 114 transitions. [2021-10-28 09:10:32,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 09:10:32,207 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 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) Word has length 34 [2021-10-28 09:10:32,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:10:32,209 INFO L225 Difference]: With dead ends: 100 [2021-10-28 09:10:32,209 INFO L226 Difference]: Without dead ends: 60 [2021-10-28 09:10:32,209 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:10:32,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-10-28 09:10:32,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 57. [2021-10-28 09:10:32,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 53 states have (on average 1.1886792452830188) internal successors, (63), 56 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) [2021-10-28 09:10:32,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 63 transitions. [2021-10-28 09:10:32,222 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 63 transitions. Word has length 34 [2021-10-28 09:10:32,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:10:32,223 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 63 transitions. [2021-10-28 09:10:32,223 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 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) [2021-10-28 09:10:32,223 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 63 transitions. [2021-10-28 09:10:32,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-28 09:10:32,224 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:10:32,224 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:10:32,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-28 09:10:32,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:10:32,441 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-10-28 09:10:32,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:10:32,441 INFO L85 PathProgramCache]: Analyzing trace with hash 71284786, now seen corresponding path program 1 times [2021-10-28 09:10:32,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:10:32,442 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504304739] [2021-10-28 09:10:32,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:10:32,442 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:10:32,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:10:32,526 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-10-28 09:10:32,527 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:10:32,527 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504304739] [2021-10-28 09:10:32,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504304739] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:10:32,527 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1853173736] [2021-10-28 09:10:32,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:10:32,527 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:10:32,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:10:32,528 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:10:32,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-28 09:10:32,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:10:32,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 09:10:32,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:10:32,806 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-28 09:10:32,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1853173736] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:10:32,806 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:10:32,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7] total 9 [2021-10-28 09:10:32,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488394196] [2021-10-28 09:10:32,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 09:10:32,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:10:32,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 09:10:32,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-10-28 09:10:32,808 INFO L87 Difference]: Start difference. First operand 57 states and 63 transitions. Second operand has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 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) [2021-10-28 09:10:32,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:10:32,868 INFO L93 Difference]: Finished difference Result 114 states and 128 transitions. [2021-10-28 09:10:32,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 09:10:32,868 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 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 38 [2021-10-28 09:10:32,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:10:32,869 INFO L225 Difference]: With dead ends: 114 [2021-10-28 09:10:32,869 INFO L226 Difference]: Without dead ends: 72 [2021-10-28 09:10:32,870 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-10-28 09:10:32,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-10-28 09:10:32,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 66. [2021-10-28 09:10:32,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 62 states have (on average 1.1612903225806452) internal successors, (72), 65 states have internal predecessors, (72), 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) [2021-10-28 09:10:32,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 72 transitions. [2021-10-28 09:10:32,876 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 72 transitions. Word has length 38 [2021-10-28 09:10:32,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:10:32,876 INFO L470 AbstractCegarLoop]: Abstraction has 66 states and 72 transitions. [2021-10-28 09:10:32,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 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) [2021-10-28 09:10:32,877 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 72 transitions. [2021-10-28 09:10:32,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-10-28 09:10:32,879 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:10:32,879 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:10:32,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-28 09:10:33,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-10-28 09:10:33,097 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-10-28 09:10:33,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:10:33,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1472783081, now seen corresponding path program 1 times [2021-10-28 09:10:33,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:10:33,098 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545721601] [2021-10-28 09:10:33,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:10:33,098 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:10:33,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:10:33,174 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-10-28 09:10:33,175 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:10:33,175 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545721601] [2021-10-28 09:10:33,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545721601] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:10:33,175 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [778676281] [2021-10-28 09:10:33,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:10:33,176 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:10:33,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:10:33,192 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:10:33,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-28 09:10:33,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:10:33,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 09:10:33,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:10:33,521 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-28 09:10:33,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [778676281] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:10:33,522 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:10:33,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 8] total 10 [2021-10-28 09:10:33,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268244664] [2021-10-28 09:10:33,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 09:10:33,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:10:33,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 09:10:33,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-10-28 09:10:33,524 INFO L87 Difference]: Start difference. First operand 66 states and 72 transitions. Second operand has 10 states, 10 states have (on average 6.7) internal successors, (67), 10 states have internal predecessors, (67), 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) [2021-10-28 09:10:33,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:10:33,591 INFO L93 Difference]: Finished difference Result 118 states and 131 transitions. [2021-10-28 09:10:33,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 09:10:33,591 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 10 states have internal predecessors, (67), 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 41 [2021-10-28 09:10:33,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:10:33,592 INFO L225 Difference]: With dead ends: 118 [2021-10-28 09:10:33,592 INFO L226 Difference]: Without dead ends: 70 [2021-10-28 09:10:33,593 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-10-28 09:10:33,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-10-28 09:10:33,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 68. [2021-10-28 09:10:33,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 65 states have (on average 1.1384615384615384) internal successors, (74), 67 states have internal predecessors, (74), 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) [2021-10-28 09:10:33,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 74 transitions. [2021-10-28 09:10:33,597 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 74 transitions. Word has length 41 [2021-10-28 09:10:33,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:10:33,598 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 74 transitions. [2021-10-28 09:10:33,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 10 states have internal predecessors, (67), 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) [2021-10-28 09:10:33,598 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 74 transitions. [2021-10-28 09:10:33,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-10-28 09:10:33,598 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:10:33,599 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:10:33,632 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-28 09:10:33,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:10:33,823 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-10-28 09:10:33,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:10:33,824 INFO L85 PathProgramCache]: Analyzing trace with hash 312315462, now seen corresponding path program 2 times [2021-10-28 09:10:33,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:10:33,824 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902645148] [2021-10-28 09:10:33,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:10:33,824 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:10:33,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:10:33,911 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-10-28 09:10:33,911 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:10:33,911 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902645148] [2021-10-28 09:10:33,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902645148] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:10:33,911 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2057835846] [2021-10-28 09:10:33,912 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 09:10:33,912 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:10:33,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:10:33,913 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:10:33,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-28 09:10:34,067 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-28 09:10:34,067 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:10:34,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 09:10:34,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:10:34,213 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-10-28 09:10:34,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2057835846] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:10:34,214 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:10:34,214 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-10-28 09:10:34,214 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618223658] [2021-10-28 09:10:34,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:10:34,215 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:10:34,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:10:34,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:10:34,216 INFO L87 Difference]: Start difference. First operand 68 states and 74 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 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) [2021-10-28 09:10:34,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:10:34,261 INFO L93 Difference]: Finished difference Result 68 states and 74 transitions. [2021-10-28 09:10:34,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:10:34,262 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 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 [2021-10-28 09:10:34,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:10:34,262 INFO L225 Difference]: With dead ends: 68 [2021-10-28 09:10:34,263 INFO L226 Difference]: Without dead ends: 53 [2021-10-28 09:10:34,263 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:10:34,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-10-28 09:10:34,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-10-28 09:10:34,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 51 states have (on average 1.0980392156862746) internal successors, (56), 52 states have internal predecessors, (56), 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) [2021-10-28 09:10:34,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 56 transitions. [2021-10-28 09:10:34,266 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 56 transitions. Word has length 46 [2021-10-28 09:10:34,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:10:34,267 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 56 transitions. [2021-10-28 09:10:34,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 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) [2021-10-28 09:10:34,267 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 56 transitions. [2021-10-28 09:10:34,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-10-28 09:10:34,268 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:10:34,268 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:10:34,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-28 09:10:34,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-10-28 09:10:34,484 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-10-28 09:10:34,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:10:34,484 INFO L85 PathProgramCache]: Analyzing trace with hash -889966142, now seen corresponding path program 2 times [2021-10-28 09:10:34,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:10:34,484 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083452841] [2021-10-28 09:10:34,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:10:34,484 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:10:34,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:10:34,585 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2021-10-28 09:10:34,586 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:10:34,586 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083452841] [2021-10-28 09:10:34,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083452841] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:10:34,586 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1537081718] [2021-10-28 09:10:34,586 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 09:10:34,586 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:10:34,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:10:34,587 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:10:34,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-28 09:10:34,764 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-28 09:10:34,764 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:10:34,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 09:10:34,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:10:34,894 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2021-10-28 09:10:34,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1537081718] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:10:34,895 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:10:34,895 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2021-10-28 09:10:34,895 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17004438] [2021-10-28 09:10:34,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 09:10:34,896 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:10:34,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:10:34,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:10:34,896 INFO L87 Difference]: Start difference. First operand 53 states and 56 transitions. Second operand has 6 states, 5 states have (on average 10.0) internal successors, (50), 6 states have internal predecessors, (50), 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) [2021-10-28 09:10:34,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:10:34,966 INFO L93 Difference]: Finished difference Result 64 states and 70 transitions. [2021-10-28 09:10:34,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:10:34,966 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.0) internal successors, (50), 6 states have internal predecessors, (50), 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 50 [2021-10-28 09:10:34,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:10:34,967 INFO L225 Difference]: With dead ends: 64 [2021-10-28 09:10:34,967 INFO L226 Difference]: Without dead ends: 63 [2021-10-28 09:10:34,968 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-10-28 09:10:34,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-10-28 09:10:34,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 52. [2021-10-28 09:10:34,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.0784313725490196) internal successors, (55), 51 states have internal predecessors, (55), 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) [2021-10-28 09:10:34,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 55 transitions. [2021-10-28 09:10:34,971 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 55 transitions. Word has length 50 [2021-10-28 09:10:34,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:10:34,971 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 55 transitions. [2021-10-28 09:10:34,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.0) internal successors, (50), 6 states have internal predecessors, (50), 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) [2021-10-28 09:10:34,972 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 55 transitions. [2021-10-28 09:10:34,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-28 09:10:34,972 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:10:34,972 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:10:35,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-28 09:10:35,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-10-28 09:10:35,187 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-10-28 09:10:35,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:10:35,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1819146527, now seen corresponding path program 1 times [2021-10-28 09:10:35,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:10:35,188 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641326284] [2021-10-28 09:10:35,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:10:35,188 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:10:35,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:10:35,279 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2021-10-28 09:10:35,279 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:10:35,279 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641326284] [2021-10-28 09:10:35,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641326284] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:10:35,279 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1533185175] [2021-10-28 09:10:35,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:10:35,280 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:10:35,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:10:35,295 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:10:35,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-28 09:10:35,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:10:35,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 09:10:35,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:10:35,694 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-28 09:10:35,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1533185175] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:10:35,695 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:10:35,695 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 9] total 11 [2021-10-28 09:10:35,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107889045] [2021-10-28 09:10:35,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 09:10:35,696 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:10:35,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 09:10:35,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-10-28 09:10:35,697 INFO L87 Difference]: Start difference. First operand 52 states and 55 transitions. Second operand has 11 states, 11 states have (on average 6.181818181818182) internal successors, (68), 11 states have internal predecessors, (68), 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) [2021-10-28 09:10:35,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:10:35,786 INFO L93 Difference]: Finished difference Result 87 states and 94 transitions. [2021-10-28 09:10:35,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 09:10:35,787 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.181818181818182) internal successors, (68), 11 states have internal predecessors, (68), 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 51 [2021-10-28 09:10:35,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:10:35,787 INFO L225 Difference]: With dead ends: 87 [2021-10-28 09:10:35,787 INFO L226 Difference]: Without dead ends: 0 [2021-10-28 09:10:35,788 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-10-28 09:10:35,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-28 09:10:35,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-28 09:10:35,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:10:35,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 09:10:35,789 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51 [2021-10-28 09:10:35,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:10:35,789 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:10:35,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.181818181818182) internal successors, (68), 11 states have internal predecessors, (68), 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) [2021-10-28 09:10:35,789 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-28 09:10:35,789 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-28 09:10:35,791 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:10:35,792 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:10:35,792 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:10:35,792 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:10:35,792 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:10:35,792 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:10:35,793 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:10:35,793 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:10:35,793 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:10:35,793 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:10:35,793 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:10:35,793 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:10:35,793 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:10:35,794 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:10:35,794 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:10:35,794 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:10:35,830 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-28 09:10:35,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-10-28 09:10:35,996 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-28 09:10:35,998 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:10:36,010 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:10:36,018 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:10:36,021 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:10:36,025 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:10:36,039 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:10:36,044 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:10:36,044 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:10:36,316 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1886) no Hoare annotation was computed. [2021-10-28 09:10:36,316 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1898) no Hoare annotation was computed. [2021-10-28 09:10:36,316 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1887) no Hoare annotation was computed. [2021-10-28 09:10:36,316 INFO L857 garLoopResultBuilder]: For program point L1894-2(lines 1894 1895) no Hoare annotation was computed. [2021-10-28 09:10:36,317 INFO L857 garLoopResultBuilder]: For program point L1894-3(line 1894) no Hoare annotation was computed. [2021-10-28 09:10:36,317 INFO L853 garLoopResultBuilder]: At program point L1894-4(lines 1894 1895) the Hoare annotation is: (let ((.cse3 (< ULTIMATE.start_main_~i~4 2147483646)) (.cse6 (<= 1 ULTIMATE.start_main_~i~4)) (.cse7 (<= 1 ULTIMATE.start_main_~j~0)) (.cse0 (<= 1 ULTIMATE.start_main_~i~3)) (.cse1 (<= ULTIMATE.start_main_~argc~0 10000)) (.cse2 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse4 (= ULTIMATE.start_main_~j~0 0)) (.cse5 (<= 1 ULTIMATE.start_main_~argc~0)) (.cse8 (= ULTIMATE.start_main_~i~4 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse0 .cse1 .cse2 .cse7 .cse3 .cse5 .cse6) (and .cse0 .cse1 .cse2 .cse7 .cse5 .cse8) (and .cse0 .cse1 .cse2 .cse4 .cse5 .cse8))) [2021-10-28 09:10:36,317 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1879) no Hoare annotation was computed. [2021-10-28 09:10:36,317 INFO L857 garLoopResultBuilder]: For program point L1886(line 1886) no Hoare annotation was computed. [2021-10-28 09:10:36,317 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-28 09:10:36,317 INFO L857 garLoopResultBuilder]: For program point L1886-1(line 1886) no Hoare annotation was computed. [2021-10-28 09:10:36,317 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-28 09:10:36,317 INFO L857 garLoopResultBuilder]: For program point L1886-2(line 1886) no Hoare annotation was computed. [2021-10-28 09:10:36,318 INFO L860 garLoopResultBuilder]: At program point L1903(lines 1875 1904) the Hoare annotation is: true [2021-10-28 09:10:36,318 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1887) no Hoare annotation was computed. [2021-10-28 09:10:36,318 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1879) no Hoare annotation was computed. [2021-10-28 09:10:36,318 INFO L857 garLoopResultBuilder]: For program point L1887(line 1887) no Hoare annotation was computed. [2021-10-28 09:10:36,318 INFO L857 garLoopResultBuilder]: For program point L1887-1(line 1887) no Hoare annotation was computed. [2021-10-28 09:10:36,318 INFO L857 garLoopResultBuilder]: For program point L1887-2(line 1887) no Hoare annotation was computed. [2021-10-28 09:10:36,318 INFO L857 garLoopResultBuilder]: For program point L1887-3(line 1887) no Hoare annotation was computed. [2021-10-28 09:10:36,318 INFO L857 garLoopResultBuilder]: For program point L1879-2(lines 1879 1880) no Hoare annotation was computed. [2021-10-28 09:10:36,318 INFO L857 garLoopResultBuilder]: For program point L1879-3(line 1879) no Hoare annotation was computed. [2021-10-28 09:10:36,319 INFO L853 garLoopResultBuilder]: At program point L1879-4(lines 1879 1880) the Hoare annotation is: (<= 0 ULTIMATE.start_main_~i~3) [2021-10-28 09:10:36,319 INFO L857 garLoopResultBuilder]: For program point L1879-5(lines 1879 1880) no Hoare annotation was computed. [2021-10-28 09:10:36,319 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1887) no Hoare annotation was computed. [2021-10-28 09:10:36,319 INFO L853 garLoopResultBuilder]: At program point L1789(lines 1780 1790) the Hoare annotation is: (and (<= 1 ULTIMATE.start_main_~i~3) (<= ULTIMATE.start_main_~argc~0 10000) (= ULTIMATE.start_assume_abort_if_not_~cond 1) (<= 1 ULTIMATE.start_main_~argc~0)) [2021-10-28 09:10:36,319 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1894) no Hoare annotation was computed. [2021-10-28 09:10:36,319 INFO L857 garLoopResultBuilder]: For program point L1889-2(lines 1889 1896) no Hoare annotation was computed. [2021-10-28 09:10:36,319 INFO L857 garLoopResultBuilder]: For program point L1889-3(line 1889) no Hoare annotation was computed. [2021-10-28 09:10:36,319 INFO L853 garLoopResultBuilder]: At program point L1889-4(lines 1889 1896) the Hoare annotation is: (let ((.cse0 (<= 1 ULTIMATE.start_main_~i~3)) (.cse1 (<= ULTIMATE.start_main_~argc~0 10000)) (.cse2 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse3 (<= 1 ULTIMATE.start_main_~argc~0))) (or (and .cse0 .cse1 .cse2 (<= 1 ULTIMATE.start_main_~j~0) .cse3 (<= 1 ULTIMATE.start_main_~i~4)) (and .cse0 .cse1 .cse2 .cse3 (= ULTIMATE.start_main_~i~4 0)))) [2021-10-28 09:10:36,319 INFO L857 garLoopResultBuilder]: For program point L1889-5(lines 1889 1896) no Hoare annotation was computed. [2021-10-28 09:10:36,320 INFO L857 garLoopResultBuilder]: For program point L1782(lines 1782 1783) no Hoare annotation was computed. [2021-10-28 09:10:36,320 INFO L857 garLoopResultBuilder]: For program point L1782-1(lines 1782 1783) no Hoare annotation was computed. [2021-10-28 09:10:36,320 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1894) no Hoare annotation was computed. [2021-10-28 09:10:36,320 INFO L857 garLoopResultBuilder]: For program point L1898-2(lines 1898 1899) no Hoare annotation was computed. [2021-10-28 09:10:36,320 INFO L857 garLoopResultBuilder]: For program point L1898-3(line 1898) no Hoare annotation was computed. [2021-10-28 09:10:36,320 INFO L853 garLoopResultBuilder]: At program point L1898-4(lines 1898 1899) the Hoare annotation is: (let ((.cse0 (<= 1 ULTIMATE.start_main_~i~3)) (.cse1 (<= ULTIMATE.start_main_~argc~0 10000)) (.cse2 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse3 (<= 1 ULTIMATE.start_main_~argc~0))) (or (and .cse0 .cse1 .cse2 (<= 1 ULTIMATE.start_main_~i~5) .cse3) (and .cse0 .cse1 .cse2 (= ULTIMATE.start_main_~i~5 0) .cse3))) [2021-10-28 09:10:36,320 INFO L857 garLoopResultBuilder]: For program point L1898-5(lines 1898 1899) no Hoare annotation was computed. [2021-10-28 09:10:36,320 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-28 09:10:36,320 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1886) no Hoare annotation was computed. [2021-10-28 09:10:36,321 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1889) no Hoare annotation was computed. [2021-10-28 09:10:36,321 INFO L853 garLoopResultBuilder]: At program point L1775(lines 1771 1776) the Hoare annotation is: (and (<= 1 ULTIMATE.start_main_~i~3) (<= ULTIMATE.start_main_~argc~0 10000) (= ULTIMATE.start_assume_abort_if_not_~cond 1) (<= 1 ULTIMATE.start_main_~argc~0)) [2021-10-28 09:10:36,321 INFO L857 garLoopResultBuilder]: For program point L8(lines 8 10) no Hoare annotation was computed. [2021-10-28 09:10:36,321 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-28 09:10:36,321 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1886) no Hoare annotation was computed. [2021-10-28 09:10:36,321 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1889) no Hoare annotation was computed. [2021-10-28 09:10:36,321 INFO L857 garLoopResultBuilder]: For program point L9(line 9) no Hoare annotation was computed. [2021-10-28 09:10:36,321 INFO L853 garLoopResultBuilder]: At program point L1793(lines 1791 1794) the Hoare annotation is: (and (<= 1 ULTIMATE.start_main_~i~3) (<= ULTIMATE.start_main_~argc~0 10000) (= ULTIMATE.start_assume_abort_if_not_~cond 1) (<= 1 ULTIMATE.start_main_~argc~0)) [2021-10-28 09:10:36,322 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1886) no Hoare annotation was computed. [2021-10-28 09:10:36,322 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1898) no Hoare annotation was computed. [2021-10-28 09:10:36,322 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1887) no Hoare annotation was computed. [2021-10-28 09:10:36,329 INFO L731 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:10:36,330 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 09:10:36,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:10:36 BoogieIcfgContainer [2021-10-28 09:10:36,371 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 09:10:36,372 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:10:36,372 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:10:36,372 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:10:36,373 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:10:28" (3/4) ... [2021-10-28 09:10:36,375 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 09:10:36,389 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-10-28 09:10:36,392 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-10-28 09:10:36,393 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-28 09:10:36,393 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 09:10:36,456 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 09:10:36,457 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:10:36,458 INFO L168 Benchmark]: Toolchain (without parser) took 10448.97 ms. Allocated memory was 113.2 MB in the beginning and 213.9 MB in the end (delta: 100.7 MB). Free memory was 70.0 MB in the beginning and 177.4 MB in the end (delta: -107.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:10:36,459 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 113.2 MB. Free memory is still 90.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:10:36,460 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1281.13 ms. Allocated memory was 113.2 MB in the beginning and 155.2 MB in the end (delta: 41.9 MB). Free memory was 69.8 MB in the beginning and 110.2 MB in the end (delta: -40.4 MB). Peak memory consumption was 24.0 MB. Max. memory is 16.1 GB. [2021-10-28 09:10:36,461 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.96 ms. Allocated memory is still 155.2 MB. Free memory was 110.2 MB in the beginning and 106.5 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 09:10:36,461 INFO L168 Benchmark]: Boogie Preprocessor took 46.10 ms. Allocated memory is still 155.2 MB. Free memory was 106.5 MB in the beginning and 103.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:10:36,461 INFO L168 Benchmark]: RCFGBuilder took 591.51 ms. Allocated memory is still 155.2 MB. Free memory was 103.9 MB in the beginning and 84.0 MB in the end (delta: 19.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-10-28 09:10:36,462 INFO L168 Benchmark]: TraceAbstraction took 8347.30 ms. Allocated memory was 155.2 MB in the beginning and 213.9 MB in the end (delta: 58.7 MB). Free memory was 83.4 MB in the beginning and 181.6 MB in the end (delta: -98.1 MB). Peak memory consumption was 86.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:10:36,462 INFO L168 Benchmark]: Witness Printer took 84.81 ms. Allocated memory is still 213.9 MB. Free memory was 181.6 MB in the beginning and 177.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 09:10:36,464 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 113.2 MB. Free memory is still 90.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1281.13 ms. Allocated memory was 113.2 MB in the beginning and 155.2 MB in the end (delta: 41.9 MB). Free memory was 69.8 MB in the beginning and 110.2 MB in the end (delta: -40.4 MB). Peak memory consumption was 24.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 76.96 ms. Allocated memory is still 155.2 MB. Free memory was 110.2 MB in the beginning and 106.5 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 46.10 ms. Allocated memory is still 155.2 MB. Free memory was 106.5 MB in the beginning and 103.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 591.51 ms. Allocated memory is still 155.2 MB. Free memory was 103.9 MB in the beginning and 84.0 MB in the end (delta: 19.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 8347.30 ms. Allocated memory was 155.2 MB in the beginning and 213.9 MB in the end (delta: 58.7 MB). Free memory was 83.4 MB in the beginning and 181.6 MB in the end (delta: -98.1 MB). Peak memory consumption was 86.5 MB. Max. memory is 16.1 GB. * Witness Printer took 84.81 ms. Allocated memory is still 213.9 MB. Free memory was 181.6 MB in the beginning and 177.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1879]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1879]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1886]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1886]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1886]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1886]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1887]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1887]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1887]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1887]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1894]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1894]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1889]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1889]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1898]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1898]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 50 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 8.2s, OverallIterations: 16, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 546 SDtfs, 272 SDslu, 977 SDs, 0 SdLazy, 444 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 357 GetRequests, 293 SyntacticMatches, 1 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68occurred in iteration=13, InterpolantAutomatonStates: 85, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 16 MinimizatonAttempts, 56 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 30 NumberOfFragments, 195 HoareAnnotationTreeSize, 8 FomulaSimplifications, 480 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 129 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 744 NumberOfCodeBlocks, 680 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 718 ConstructedInterpolants, 0 QuantifiedInterpolants, 1215 SizeOfPredicates, 4 NumberOfNonLiveVariables, 1630 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 26 InterpolantComputations, 8 PerfectInterpolantSequences, 467/672 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold - InvariantResult [Line: 1771]: Loop Invariant Derived loop invariant: ((1 <= i && argc <= 10000) && cond == 1) && 1 <= argc - InvariantResult [Line: 1791]: Loop Invariant Derived loop invariant: ((1 <= i && argc <= 10000) && cond == 1) && 1 <= argc - InvariantResult [Line: 1879]: Loop Invariant Derived loop invariant: 0 <= i - InvariantResult [Line: 1889]: Loop Invariant Derived loop invariant: (((((1 <= i && argc <= 10000) && cond == 1) && 1 <= j) && 1 <= argc) && 1 <= i) || ((((1 <= i && argc <= 10000) && cond == 1) && 1 <= argc) && i == 0) - InvariantResult [Line: 1780]: Loop Invariant Derived loop invariant: ((1 <= i && argc <= 10000) && cond == 1) && 1 <= argc - InvariantResult [Line: 1894]: Loop Invariant Derived loop invariant: ((((((((1 <= i && argc <= 10000) && cond == 1) && i < 2147483646) && j == 0) && 1 <= argc) && 1 <= i) || ((((((1 <= i && argc <= 10000) && cond == 1) && 1 <= j) && i < 2147483646) && 1 <= argc) && 1 <= i)) || (((((1 <= i && argc <= 10000) && cond == 1) && 1 <= j) && 1 <= argc) && i == 0)) || (((((1 <= i && argc <= 10000) && cond == 1) && j == 0) && 1 <= argc) && i == 0) - InvariantResult [Line: 1875]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1898]: Loop Invariant Derived loop invariant: ((((1 <= i && argc <= 10000) && cond == 1) && 1 <= i) && 1 <= argc) || ((((1 <= i && argc <= 10000) && cond == 1) && i == 0) && 1 <= argc) RESULT: Ultimate proved your program to be correct! [2021-10-28 09:10:36,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292ac6f5-957d-4dcc-ba7e-913acacd35bf/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...