./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test10-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test10-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1c32e831c11e67575bf9fc4420a056c0795572e7218bcd99a0067a1a2caea6f7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 17:30:59,621 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 17:30:59,624 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 17:30:59,676 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 17:30:59,677 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 17:30:59,681 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 17:30:59,684 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 17:30:59,688 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 17:30:59,691 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 17:30:59,697 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 17:30:59,698 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 17:30:59,700 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 17:30:59,700 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 17:30:59,703 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 17:30:59,705 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 17:30:59,708 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 17:30:59,710 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 17:30:59,711 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 17:30:59,717 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 17:30:59,727 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 17:30:59,729 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 17:30:59,730 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 17:30:59,734 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 17:30:59,735 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 17:30:59,744 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 17:30:59,745 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 17:30:59,745 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 17:30:59,747 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 17:30:59,748 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 17:30:59,749 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 17:30:59,749 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 17:30:59,751 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 17:30:59,752 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 17:30:59,754 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 17:30:59,755 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 17:30:59,756 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 17:30:59,757 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 17:30:59,757 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 17:30:59,757 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 17:30:59,758 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 17:30:59,759 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 17:30:59,760 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-11-13 17:30:59,804 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 17:30:59,805 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 17:30:59,805 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 17:30:59,806 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 17:30:59,806 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 17:30:59,807 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 17:30:59,807 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 17:30:59,808 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 17:30:59,808 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 17:30:59,808 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 17:30:59,809 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 17:30:59,809 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 17:30:59,810 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 17:30:59,810 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 17:30:59,810 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 17:30:59,810 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 17:30:59,810 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 17:30:59,811 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 17:30:59,811 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-13 17:30:59,811 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 17:30:59,811 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 17:30:59,811 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 17:30:59,811 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 17:30:59,812 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 17:30:59,812 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 17:30:59,812 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 17:30:59,812 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:30:59,813 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 17:30:59,813 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 17:30:59,814 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 17:30:59,814 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 17:30:59,815 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 17:30:59,815 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 17:30:59,815 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 17:30:59,815 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_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1c32e831c11e67575bf9fc4420a056c0795572e7218bcd99a0067a1a2caea6f7 [2021-11-13 17:31:00,083 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 17:31:00,107 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 17:31:00,110 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 17:31:00,111 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 17:31:00,112 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 17:31:00,114 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test10-1.i [2021-11-13 17:31:00,205 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/data/11d13d75b/5862875fbc424e55bad9934db0d57d10/FLAG40971a8f6 [2021-11-13 17:31:00,836 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 17:31:00,836 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test10-1.i [2021-11-13 17:31:00,860 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/data/11d13d75b/5862875fbc424e55bad9934db0d57d10/FLAG40971a8f6 [2021-11-13 17:31:01,021 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/data/11d13d75b/5862875fbc424e55bad9934db0d57d10 [2021-11-13 17:31:01,023 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 17:31:01,025 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 17:31:01,026 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 17:31:01,026 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 17:31:01,030 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 17:31:01,030 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:31:01" (1/1) ... [2021-11-13 17:31:01,032 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@684a0dc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:31:01, skipping insertion in model container [2021-11-13 17:31:01,032 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:31:01" (1/1) ... [2021-11-13 17:31:01,039 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 17:31:01,111 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 17:31:01,692 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test10-1.i[33022,33035] [2021-11-13 17:31:01,957 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:31:01,966 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 17:31:02,002 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test10-1.i[33022,33035] [2021-11-13 17:31:02,128 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:31:02,216 INFO L208 MainTranslator]: Completed translation [2021-11-13 17:31:02,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:31:02 WrapperNode [2021-11-13 17:31:02,217 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 17:31:02,218 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 17:31:02,218 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 17:31:02,218 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 17:31:02,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:31:02" (1/1) ... [2021-11-13 17:31:02,288 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:31:02" (1/1) ... [2021-11-13 17:31:02,398 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 17:31:02,399 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 17:31:02,399 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 17:31:02,399 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 17:31:02,409 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:31:02" (1/1) ... [2021-11-13 17:31:02,409 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:31:02" (1/1) ... [2021-11-13 17:31:02,426 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:31:02" (1/1) ... [2021-11-13 17:31:02,426 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:31:02" (1/1) ... [2021-11-13 17:31:02,495 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:31:02" (1/1) ... [2021-11-13 17:31:02,519 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:31:02" (1/1) ... [2021-11-13 17:31:02,531 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:31:02" (1/1) ... [2021-11-13 17:31:02,557 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 17:31:02,559 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 17:31:02,559 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 17:31:02,560 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 17:31:02,561 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:31:02" (1/1) ... [2021-11-13 17:31:02,570 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:31:02,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:31:02,603 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 17:31:02,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 17:31:02,652 INFO L130 BoogieDeclarations]: Found specification of procedure test_int_int [2021-11-13 17:31:02,652 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int_int [2021-11-13 17:31:02,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 17:31:02,653 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-13 17:31:02,653 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-13 17:31:02,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 17:31:02,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-13 17:31:02,653 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-13 17:31:02,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 17:31:02,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 17:31:02,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 17:31:02,654 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-13 17:31:02,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 17:31:02,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 17:31:02,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 17:31:02,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 17:31:02,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 17:31:04,868 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 17:31:04,868 INFO L299 CfgBuilder]: Removed 151 assume(true) statements. [2021-11-13 17:31:04,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:31:04 BoogieIcfgContainer [2021-11-13 17:31:04,872 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 17:31:04,875 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 17:31:04,875 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 17:31:04,879 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 17:31:04,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 05:31:01" (1/3) ... [2021-11-13 17:31:04,880 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d0a7e32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:31:04, skipping insertion in model container [2021-11-13 17:31:04,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:31:02" (2/3) ... [2021-11-13 17:31:04,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d0a7e32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:31:04, skipping insertion in model container [2021-11-13 17:31:04,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:31:04" (3/3) ... [2021-11-13 17:31:04,885 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test10-1.i [2021-11-13 17:31:04,891 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 17:31:04,891 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-13 17:31:04,968 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 17:31:04,975 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 [2021-11-13 17:31:04,975 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-13 17:31:05,004 INFO L276 IsEmpty]: Start isEmpty. Operand has 438 states, 414 states have (on average 1.714975845410628) internal successors, (710), 424 states have internal predecessors, (710), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2021-11-13 17:31:05,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-13 17:31:05,009 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:31:05,010 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:31:05,010 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-13 17:31:05,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:31:05,015 INFO L85 PathProgramCache]: Analyzing trace with hash -165268689, now seen corresponding path program 1 times [2021-11-13 17:31:05,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:31:05,022 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535787777] [2021-11-13 17:31:05,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:31:05,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:31:05,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:31:05,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:31:05,197 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:31:05,197 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535787777] [2021-11-13 17:31:05,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535787777] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:31:05,198 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:31:05,198 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 17:31:05,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083239073] [2021-11-13 17:31:05,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:31:05,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 17:31:05,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:31:05,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 17:31:05,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 17:31:05,236 INFO L87 Difference]: Start difference. First operand has 438 states, 414 states have (on average 1.714975845410628) internal successors, (710), 424 states have internal predecessors, (710), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2021-11-13 17:31:05,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:31:05,331 INFO L93 Difference]: Finished difference Result 874 states and 1482 transitions. [2021-11-13 17:31:05,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 17:31:05,333 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 [2021-11-13 17:31:05,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:31:05,356 INFO L225 Difference]: With dead ends: 874 [2021-11-13 17:31:05,356 INFO L226 Difference]: Without dead ends: 434 [2021-11-13 17:31:05,365 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 17:31:05,372 INFO L933 BasicCegarLoop]: 579 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.02ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-13 17:31:05,373 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 8.02ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-13 17:31:05,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2021-11-13 17:31:05,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 434. [2021-11-13 17:31:05,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 411 states have (on average 1.3333333333333333) internal successors, (548), 421 states have internal predecessors, (548), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-13 17:31:05,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 575 transitions. [2021-11-13 17:31:05,458 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 575 transitions. Word has length 7 [2021-11-13 17:31:05,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:31:05,458 INFO L470 AbstractCegarLoop]: Abstraction has 434 states and 575 transitions. [2021-11-13 17:31:05,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2021-11-13 17:31:05,459 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 575 transitions. [2021-11-13 17:31:05,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-13 17:31:05,459 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:31:05,460 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:31:05,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 17:31:05,460 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-13 17:31:05,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:31:05,463 INFO L85 PathProgramCache]: Analyzing trace with hash -165266767, now seen corresponding path program 1 times [2021-11-13 17:31:05,463 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:31:05,463 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539843760] [2021-11-13 17:31:05,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:31:05,464 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:31:05,502 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-13 17:31:05,503 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [635142406] [2021-11-13 17:31:05,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:31:05,503 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:31:05,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:31:05,505 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 17:31:05,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-13 17:31:05,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:31:05,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-13 17:31:05,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:31:05,812 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-13 17:31:05,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-13 17:31:05,886 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-13 17:31:05,891 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-13 17:31:05,974 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2021-11-13 17:31:05,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:31:05,996 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 17:31:05,996 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:31:05,997 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539843760] [2021-11-13 17:31:05,997 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-13 17:31:05,997 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [635142406] [2021-11-13 17:31:05,997 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [635142406] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:31:05,998 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:31:05,998 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 17:31:05,999 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670607476] [2021-11-13 17:31:05,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:31:06,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 17:31:06,003 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:31:06,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 17:31:06,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:31:06,004 INFO L87 Difference]: Start difference. First operand 434 states and 575 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 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) [2021-11-13 17:31:07,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:31:07,519 INFO L93 Difference]: Finished difference Result 524 states and 695 transitions. [2021-11-13 17:31:07,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 17:31:07,520 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 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 [2021-11-13 17:31:07,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:31:07,524 INFO L225 Difference]: With dead ends: 524 [2021-11-13 17:31:07,524 INFO L226 Difference]: Without dead ends: 522 [2021-11-13 17:31:07,525 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-13 17:31:07,526 INFO L933 BasicCegarLoop]: 532 mSDtfsCounter, 197 mSDsluCounter, 1344 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1262.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 1876 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.45ms SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1425.69ms IncrementalHoareTripleChecker+Time [2021-11-13 17:31:07,527 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [197 Valid, 1876 Invalid, 453 Unknown, 0 Unchecked, 14.45ms Time], IncrementalHoareTripleChecker [22 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 1425.69ms Time] [2021-11-13 17:31:07,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2021-11-13 17:31:07,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 440. [2021-11-13 17:31:07,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 417 states have (on average 1.330935251798561) internal successors, (555), 427 states have internal predecessors, (555), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-13 17:31:07,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 582 transitions. [2021-11-13 17:31:07,567 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 582 transitions. Word has length 7 [2021-11-13 17:31:07,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:31:07,567 INFO L470 AbstractCegarLoop]: Abstraction has 440 states and 582 transitions. [2021-11-13 17:31:07,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 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) [2021-11-13 17:31:07,567 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 582 transitions. [2021-11-13 17:31:07,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-13 17:31:07,570 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:31:07,570 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:31:07,598 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-13 17:31:07,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-11-13 17:31:07,775 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-13 17:31:07,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:31:07,776 INFO L85 PathProgramCache]: Analyzing trace with hash -1977167222, now seen corresponding path program 1 times [2021-11-13 17:31:07,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:31:07,776 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927915741] [2021-11-13 17:31:07,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:31:07,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:31:07,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:31:07,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:31:07,883 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:31:07,885 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927915741] [2021-11-13 17:31:07,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927915741] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:31:07,886 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:31:07,886 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 17:31:07,886 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192947473] [2021-11-13 17:31:07,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:31:07,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 17:31:07,887 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:31:07,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 17:31:07,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 17:31:07,888 INFO L87 Difference]: Start difference. First operand 440 states and 582 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:31:08,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:31:08,458 INFO L93 Difference]: Finished difference Result 688 states and 915 transitions. [2021-11-13 17:31:08,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 17:31:08,463 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-11-13 17:31:08,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:31:08,466 INFO L225 Difference]: With dead ends: 688 [2021-11-13 17:31:08,466 INFO L226 Difference]: Without dead ends: 440 [2021-11-13 17:31:08,467 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:31:08,468 INFO L933 BasicCegarLoop]: 571 mSDtfsCounter, 3 mSDsluCounter, 986 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 446.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1557 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.33ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 527.68ms IncrementalHoareTripleChecker+Time [2021-11-13 17:31:08,469 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 1557 Invalid, 169 Unknown, 0 Unchecked, 7.33ms Time], IncrementalHoareTripleChecker [2 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 527.68ms Time] [2021-11-13 17:31:08,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2021-11-13 17:31:08,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 440. [2021-11-13 17:31:08,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 417 states have (on average 1.328537170263789) internal successors, (554), 427 states have internal predecessors, (554), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-13 17:31:08,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 581 transitions. [2021-11-13 17:31:08,497 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 581 transitions. Word has length 44 [2021-11-13 17:31:08,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:31:08,497 INFO L470 AbstractCegarLoop]: Abstraction has 440 states and 581 transitions. [2021-11-13 17:31:08,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:31:08,498 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 581 transitions. [2021-11-13 17:31:08,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-13 17:31:08,508 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:31:08,508 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:31:08,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-13 17:31:08,509 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-13 17:31:08,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:31:08,510 INFO L85 PathProgramCache]: Analyzing trace with hash 772269224, now seen corresponding path program 1 times [2021-11-13 17:31:08,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:31:08,511 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038879468] [2021-11-13 17:31:08,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:31:08,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:31:08,571 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-13 17:31:08,575 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1825390924] [2021-11-13 17:31:08,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:31:08,575 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:31:08,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:31:08,576 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 17:31:08,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-13 17:31:08,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:31:08,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 17:31:08,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:31:08,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:31:08,889 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 17:31:08,890 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:31:08,890 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038879468] [2021-11-13 17:31:08,890 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-13 17:31:08,890 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1825390924] [2021-11-13 17:31:08,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1825390924] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:31:08,890 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:31:08,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 17:31:08,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565970905] [2021-11-13 17:31:08,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:31:08,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 17:31:08,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:31:08,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 17:31:08,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:31:08,892 INFO L87 Difference]: Start difference. First operand 440 states and 581 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 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) [2021-11-13 17:31:08,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:31:08,979 INFO L93 Difference]: Finished difference Result 893 states and 1185 transitions. [2021-11-13 17:31:08,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 17:31:08,979 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 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) Word has length 58 [2021-11-13 17:31:08,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:31:08,983 INFO L225 Difference]: With dead ends: 893 [2021-11-13 17:31:08,983 INFO L226 Difference]: Without dead ends: 461 [2021-11-13 17:31:08,984 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:31:08,985 INFO L933 BasicCegarLoop]: 555 mSDtfsCounter, 9 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.27ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1095 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.48ms SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 64.47ms IncrementalHoareTripleChecker+Time [2021-11-13 17:31:08,986 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 1095 Invalid, 72 Unknown, 0 Unchecked, 3.48ms Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 64.47ms Time] [2021-11-13 17:31:08,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2021-11-13 17:31:09,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 460. [2021-11-13 17:31:09,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 437 states have (on average 1.3135011441647597) internal successors, (574), 447 states have internal predecessors, (574), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-13 17:31:09,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 601 transitions. [2021-11-13 17:31:09,017 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 601 transitions. Word has length 58 [2021-11-13 17:31:09,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:31:09,018 INFO L470 AbstractCegarLoop]: Abstraction has 460 states and 601 transitions. [2021-11-13 17:31:09,018 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 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) [2021-11-13 17:31:09,018 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 601 transitions. [2021-11-13 17:31:09,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-13 17:31:09,019 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:31:09,020 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:31:09,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-13 17:31:09,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:31:09,255 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-13 17:31:09,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:31:09,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1801628522, now seen corresponding path program 1 times [2021-11-13 17:31:09,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:31:09,256 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805157440] [2021-11-13 17:31:09,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:31:09,256 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:31:09,276 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-13 17:31:09,276 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2016441087] [2021-11-13 17:31:09,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:31:09,277 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:31:09,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:31:09,278 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 17:31:09,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-13 17:31:09,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:31:09,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 17:31:09,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:31:09,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:31:09,658 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 17:31:09,658 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:31:09,658 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805157440] [2021-11-13 17:31:09,659 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-13 17:31:09,659 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2016441087] [2021-11-13 17:31:09,659 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2016441087] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:31:09,659 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:31:09,659 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 17:31:09,660 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568189159] [2021-11-13 17:31:09,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:31:09,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 17:31:09,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:31:09,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 17:31:09,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 17:31:09,662 INFO L87 Difference]: Start difference. First operand 460 states and 601 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 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) [2021-11-13 17:31:09,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:31:09,765 INFO L93 Difference]: Finished difference Result 986 states and 1296 transitions. [2021-11-13 17:31:09,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 17:31:09,766 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 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) Word has length 58 [2021-11-13 17:31:09,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:31:09,770 INFO L225 Difference]: With dead ends: 986 [2021-11-13 17:31:09,770 INFO L226 Difference]: Without dead ends: 534 [2021-11-13 17:31:09,772 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:31:09,773 INFO L933 BasicCegarLoop]: 669 mSDtfsCounter, 514 mSDsluCounter, 819 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 1488 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.65ms SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 59.72ms IncrementalHoareTripleChecker+Time [2021-11-13 17:31:09,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [523 Valid, 1488 Invalid, 66 Unknown, 0 Unchecked, 8.65ms Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 59.72ms Time] [2021-11-13 17:31:09,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2021-11-13 17:31:09,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 446. [2021-11-13 17:31:09,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 423 states have (on average 1.3073286052009456) internal successors, (553), 433 states have internal predecessors, (553), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-13 17:31:09,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 580 transitions. [2021-11-13 17:31:09,802 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 580 transitions. Word has length 58 [2021-11-13 17:31:09,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:31:09,803 INFO L470 AbstractCegarLoop]: Abstraction has 446 states and 580 transitions. [2021-11-13 17:31:09,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 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) [2021-11-13 17:31:09,803 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 580 transitions. [2021-11-13 17:31:09,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-13 17:31:09,806 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:31:09,806 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:31:09,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-13 17:31:10,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:31:10,019 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-13 17:31:10,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:31:10,020 INFO L85 PathProgramCache]: Analyzing trace with hash -469402596, now seen corresponding path program 1 times [2021-11-13 17:31:10,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:31:10,020 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733543709] [2021-11-13 17:31:10,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:31:10,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:31:10,043 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-13 17:31:10,044 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1703790624] [2021-11-13 17:31:10,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:31:10,044 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:31:10,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:31:10,045 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 17:31:10,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-13 17:31:10,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:31:10,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 17:31:10,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:31:10,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:31:10,562 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 17:31:10,563 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:31:10,563 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733543709] [2021-11-13 17:31:10,563 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-13 17:31:10,563 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1703790624] [2021-11-13 17:31:10,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1703790624] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:31:10,564 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:31:10,564 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 17:31:10,564 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907091175] [2021-11-13 17:31:10,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:31:10,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 17:31:10,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:31:10,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 17:31:10,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:31:10,566 INFO L87 Difference]: Start difference. First operand 446 states and 580 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 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) [2021-11-13 17:31:10,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:31:10,649 INFO L93 Difference]: Finished difference Result 1112 states and 1448 transitions. [2021-11-13 17:31:10,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 17:31:10,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 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) Word has length 58 [2021-11-13 17:31:10,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:31:10,656 INFO L225 Difference]: With dead ends: 1112 [2021-11-13 17:31:10,657 INFO L226 Difference]: Without dead ends: 674 [2021-11-13 17:31:10,658 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:31:10,661 INFO L933 BasicCegarLoop]: 571 mSDtfsCounter, 250 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.55ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 1114 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.31ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53.57ms IncrementalHoareTripleChecker+Time [2021-11-13 17:31:10,661 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [257 Valid, 1114 Invalid, 19 Unknown, 0 Unchecked, 3.31ms Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 53.57ms Time] [2021-11-13 17:31:10,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2021-11-13 17:31:10,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 670. [2021-11-13 17:31:10,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 642 states have (on average 1.2975077881619939) internal successors, (833), 652 states have internal predecessors, (833), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2021-11-13 17:31:10,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 870 transitions. [2021-11-13 17:31:10,700 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 870 transitions. Word has length 58 [2021-11-13 17:31:10,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:31:10,700 INFO L470 AbstractCegarLoop]: Abstraction has 670 states and 870 transitions. [2021-11-13 17:31:10,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 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) [2021-11-13 17:31:10,701 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 870 transitions. [2021-11-13 17:31:10,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-13 17:31:10,703 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:31:10,703 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:31:10,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-13 17:31:10,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:31:10,919 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-13 17:31:10,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:31:10,920 INFO L85 PathProgramCache]: Analyzing trace with hash -168092098, now seen corresponding path program 1 times [2021-11-13 17:31:10,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:31:10,920 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468971687] [2021-11-13 17:31:10,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:31:10,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:31:10,940 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-13 17:31:10,940 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2028650924] [2021-11-13 17:31:10,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:31:10,940 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:31:10,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:31:10,941 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 17:31:10,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-13 17:31:11,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:31:11,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 17:31:11,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:31:11,207 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-13 17:31:11,211 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-13 17:31:11,242 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-13 17:31:11,243 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-13 17:31:11,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2021-11-13 17:31:11,333 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-13 17:31:11,333 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 41 [2021-11-13 17:31:11,475 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-13 17:31:11,476 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 17:31:11,476 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:31:11,476 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468971687] [2021-11-13 17:31:11,476 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-13 17:31:11,477 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2028650924] [2021-11-13 17:31:11,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2028650924] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:31:11,477 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:31:11,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 17:31:11,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752561576] [2021-11-13 17:31:11,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:31:11,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 17:31:11,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:31:11,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 17:31:11,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-13 17:31:11,480 INFO L87 Difference]: Start difference. First operand 670 states and 870 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-13 17:31:12,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:31:12,811 INFO L93 Difference]: Finished difference Result 1248 states and 1620 transitions. [2021-11-13 17:31:12,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 17:31:12,812 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 73 [2021-11-13 17:31:12,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:31:12,817 INFO L225 Difference]: With dead ends: 1248 [2021-11-13 17:31:12,817 INFO L226 Difference]: Without dead ends: 670 [2021-11-13 17:31:12,819 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:31:12,820 INFO L933 BasicCegarLoop]: 544 mSDtfsCounter, 97 mSDsluCounter, 1763 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1022.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 2307 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.92ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1226.29ms IncrementalHoareTripleChecker+Time [2021-11-13 17:31:12,820 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 2307 Invalid, 552 Unknown, 0 Unchecked, 11.92ms Time], IncrementalHoareTripleChecker [15 Valid, 537 Invalid, 0 Unknown, 0 Unchecked, 1226.29ms Time] [2021-11-13 17:31:12,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2021-11-13 17:31:12,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 670. [2021-11-13 17:31:12,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 642 states have (on average 1.2959501557632398) internal successors, (832), 652 states have internal predecessors, (832), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2021-11-13 17:31:12,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 869 transitions. [2021-11-13 17:31:12,848 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 869 transitions. Word has length 73 [2021-11-13 17:31:12,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:31:12,848 INFO L470 AbstractCegarLoop]: Abstraction has 670 states and 869 transitions. [2021-11-13 17:31:12,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-13 17:31:12,849 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 869 transitions. [2021-11-13 17:31:12,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-13 17:31:12,850 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:31:12,851 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:31:12,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-13 17:31:13,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-13 17:31:13,079 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-13 17:31:13,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:31:13,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1391864653, now seen corresponding path program 1 times [2021-11-13 17:31:13,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:31:13,080 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55512974] [2021-11-13 17:31:13,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:31:13,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:31:13,113 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-13 17:31:13,118 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [676679207] [2021-11-13 17:31:13,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:31:13,119 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:31:13,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:31:13,120 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 17:31:13,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-13 17:31:13,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:31:13,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 17:31:13,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:31:13,616 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-13 17:31:13,616 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 17:31:13,617 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:31:13,617 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55512974] [2021-11-13 17:31:13,617 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-13 17:31:13,617 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [676679207] [2021-11-13 17:31:13,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [676679207] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:31:13,618 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:31:13,618 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 17:31:13,618 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224850590] [2021-11-13 17:31:13,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:31:13,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 17:31:13,619 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:31:13,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 17:31:13,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:31:13,620 INFO L87 Difference]: Start difference. First operand 670 states and 869 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-13 17:31:13,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:31:13,715 INFO L93 Difference]: Finished difference Result 1362 states and 1777 transitions. [2021-11-13 17:31:13,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 17:31:13,715 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 120 [2021-11-13 17:31:13,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:31:13,721 INFO L225 Difference]: With dead ends: 1362 [2021-11-13 17:31:13,721 INFO L226 Difference]: Without dead ends: 712 [2021-11-13 17:31:13,723 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:31:13,724 INFO L933 BasicCegarLoop]: 548 mSDtfsCounter, 9 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.90ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1081 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.36ms SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 64.11ms IncrementalHoareTripleChecker+Time [2021-11-13 17:31:13,724 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 1081 Invalid, 72 Unknown, 0 Unchecked, 3.36ms Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 64.11ms Time] [2021-11-13 17:31:13,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2021-11-13 17:31:13,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 710. [2021-11-13 17:31:13,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 710 states, 682 states have (on average 1.278592375366569) internal successors, (872), 692 states have internal predecessors, (872), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2021-11-13 17:31:13,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 909 transitions. [2021-11-13 17:31:13,757 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 909 transitions. Word has length 120 [2021-11-13 17:31:13,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:31:13,757 INFO L470 AbstractCegarLoop]: Abstraction has 710 states and 909 transitions. [2021-11-13 17:31:13,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-13 17:31:13,758 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 909 transitions. [2021-11-13 17:31:13,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-13 17:31:13,760 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:31:13,760 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:31:13,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-13 17:31:13,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:31:13,987 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-13 17:31:13,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:31:13,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1452942673, now seen corresponding path program 1 times [2021-11-13 17:31:13,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:31:13,988 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147101939] [2021-11-13 17:31:13,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:31:13,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:31:14,014 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-13 17:31:14,014 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [764841410] [2021-11-13 17:31:14,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:31:14,015 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:31:14,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:31:14,016 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 17:31:14,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-13 17:31:14,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:31:14,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 17:31:14,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:31:14,519 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-13 17:31:14,520 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 17:31:14,525 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:31:14,525 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147101939] [2021-11-13 17:31:14,525 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-13 17:31:14,526 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [764841410] [2021-11-13 17:31:14,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [764841410] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:31:14,526 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:31:14,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 17:31:14,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608316925] [2021-11-13 17:31:14,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:31:14,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 17:31:14,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:31:14,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 17:31:14,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 17:31:14,531 INFO L87 Difference]: Start difference. First operand 710 states and 909 transitions. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-13 17:31:14,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:31:14,626 INFO L93 Difference]: Finished difference Result 1356 states and 1742 transitions. [2021-11-13 17:31:14,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 17:31:14,627 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 120 [2021-11-13 17:31:14,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:31:14,632 INFO L225 Difference]: With dead ends: 1356 [2021-11-13 17:31:14,632 INFO L226 Difference]: Without dead ends: 684 [2021-11-13 17:31:14,634 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:31:14,634 INFO L933 BasicCegarLoop]: 551 mSDtfsCounter, 507 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 1141 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.34ms SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 57.20ms IncrementalHoareTripleChecker+Time [2021-11-13 17:31:14,635 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [516 Valid, 1141 Invalid, 66 Unknown, 0 Unchecked, 4.34ms Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 57.20ms Time] [2021-11-13 17:31:14,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2021-11-13 17:31:14,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 682. [2021-11-13 17:31:14,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682 states, 654 states have (on average 1.269113149847095) internal successors, (830), 664 states have internal predecessors, (830), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2021-11-13 17:31:14,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 867 transitions. [2021-11-13 17:31:14,688 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 867 transitions. Word has length 120 [2021-11-13 17:31:14,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:31:14,688 INFO L470 AbstractCegarLoop]: Abstraction has 682 states and 867 transitions. [2021-11-13 17:31:14,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-13 17:31:14,689 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 867 transitions. [2021-11-13 17:31:14,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-13 17:31:14,690 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:31:14,690 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:31:14,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-13 17:31:14,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:31:14,906 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-13 17:31:14,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:31:14,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1962601091, now seen corresponding path program 1 times [2021-11-13 17:31:14,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:31:14,907 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629807994] [2021-11-13 17:31:14,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:31:14,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:31:14,926 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-13 17:31:14,927 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1137811146] [2021-11-13 17:31:14,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:31:14,927 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:31:14,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:31:14,928 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 17:31:14,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-13 17:31:15,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:31:15,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 17:31:15,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:31:15,532 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-13 17:31:15,532 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 17:31:15,533 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:31:15,533 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629807994] [2021-11-13 17:31:15,533 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-13 17:31:15,533 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1137811146] [2021-11-13 17:31:15,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1137811146] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:31:15,534 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:31:15,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 17:31:15,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537084892] [2021-11-13 17:31:15,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:31:15,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 17:31:15,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:31:15,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 17:31:15,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:31:15,536 INFO L87 Difference]: Start difference. First operand 682 states and 867 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-13 17:31:15,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:31:15,651 INFO L93 Difference]: Finished difference Result 1543 states and 1986 transitions. [2021-11-13 17:31:15,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 17:31:15,652 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 120 [2021-11-13 17:31:15,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:31:15,659 INFO L225 Difference]: With dead ends: 1543 [2021-11-13 17:31:15,659 INFO L226 Difference]: Without dead ends: 921 [2021-11-13 17:31:15,663 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:31:15,664 INFO L933 BasicCegarLoop]: 562 mSDtfsCounter, 220 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 58.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 1098 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.59ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 69.86ms IncrementalHoareTripleChecker+Time [2021-11-13 17:31:15,665 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [225 Valid, 1098 Invalid, 19 Unknown, 0 Unchecked, 4.59ms Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 69.86ms Time] [2021-11-13 17:31:15,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2021-11-13 17:31:15,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 819. [2021-11-13 17:31:15,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 819 states, 788 states have (on average 1.2766497461928934) internal successors, (1006), 798 states have internal predecessors, (1006), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (21), 18 states have call predecessors, (21), 21 states have call successors, (21) [2021-11-13 17:31:15,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 819 states to 819 states and 1049 transitions. [2021-11-13 17:31:15,703 INFO L78 Accepts]: Start accepts. Automaton has 819 states and 1049 transitions. Word has length 120 [2021-11-13 17:31:15,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:31:15,703 INFO L470 AbstractCegarLoop]: Abstraction has 819 states and 1049 transitions. [2021-11-13 17:31:15,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-13 17:31:15,704 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states and 1049 transitions. [2021-11-13 17:31:15,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-11-13 17:31:15,708 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:31:15,708 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:31:15,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-13 17:31:15,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-13 17:31:15,923 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-13 17:31:15,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:31:15,923 INFO L85 PathProgramCache]: Analyzing trace with hash 2019311684, now seen corresponding path program 1 times [2021-11-13 17:31:15,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:31:15,923 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188550009] [2021-11-13 17:31:15,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:31:15,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:31:15,942 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-13 17:31:15,942 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1169455297] [2021-11-13 17:31:15,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:31:15,943 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:31:15,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:31:15,944 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 17:31:15,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-13 17:31:16,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:31:16,354 INFO L263 TraceCheckSpWp]: Trace formula consists of 514 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-13 17:31:16,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:31:16,635 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-13 17:31:16,636 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 17:31:16,636 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:31:16,636 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188550009] [2021-11-13 17:31:16,636 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-13 17:31:16,637 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1169455297] [2021-11-13 17:31:16,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1169455297] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:31:16,637 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:31:16,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 17:31:16,638 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964905570] [2021-11-13 17:31:16,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:31:16,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 17:31:16,639 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:31:16,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 17:31:16,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 17:31:16,640 INFO L87 Difference]: Start difference. First operand 819 states and 1049 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-13 17:31:16,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:31:16,718 INFO L93 Difference]: Finished difference Result 1587 states and 2050 transitions. [2021-11-13 17:31:16,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 17:31:16,719 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 135 [2021-11-13 17:31:16,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:31:16,725 INFO L225 Difference]: With dead ends: 1587 [2021-11-13 17:31:16,726 INFO L226 Difference]: Without dead ends: 822 [2021-11-13 17:31:16,728 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:31:16,728 INFO L933 BasicCegarLoop]: 557 mSDtfsCounter, 2 mSDsluCounter, 1107 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.86ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1664 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.49ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.70ms IncrementalHoareTripleChecker+Time [2021-11-13 17:31:16,730 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 1664 Invalid, 21 Unknown, 0 Unchecked, 5.49ms Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 28.70ms Time] [2021-11-13 17:31:16,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2021-11-13 17:31:16,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 822. [2021-11-13 17:31:16,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 822 states, 790 states have (on average 1.2772151898734176) internal successors, (1009), 801 states have internal predecessors, (1009), 22 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (24), 18 states have call predecessors, (24), 21 states have call successors, (24) [2021-11-13 17:31:16,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 822 states to 822 states and 1055 transitions. [2021-11-13 17:31:16,771 INFO L78 Accepts]: Start accepts. Automaton has 822 states and 1055 transitions. Word has length 135 [2021-11-13 17:31:16,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:31:16,772 INFO L470 AbstractCegarLoop]: Abstraction has 822 states and 1055 transitions. [2021-11-13 17:31:16,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-13 17:31:16,773 INFO L276 IsEmpty]: Start isEmpty. Operand 822 states and 1055 transitions. [2021-11-13 17:31:16,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-11-13 17:31:16,774 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:31:16,775 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:31:16,815 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-13 17:31:17,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:31:17,003 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-13 17:31:17,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:31:17,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1160372552, now seen corresponding path program 1 times [2021-11-13 17:31:17,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:31:17,004 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636426787] [2021-11-13 17:31:17,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:31:17,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:31:17,029 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-13 17:31:17,030 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2112274722] [2021-11-13 17:31:17,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:31:17,030 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:31:17,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:31:17,031 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 17:31:17,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-13 17:31:17,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:31:17,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-13 17:31:17,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:31:17,719 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 32 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-13 17:31:17,719 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:31:18,072 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 6 proven. 13 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 17:31:18,073 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:31:18,073 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636426787] [2021-11-13 17:31:18,073 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-13 17:31:18,073 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2112274722] [2021-11-13 17:31:18,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2112274722] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 17:31:18,074 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-13 17:31:18,074 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-11-13 17:31:18,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567432115] [2021-11-13 17:31:18,074 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-13 17:31:18,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 17:31:18,075 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:31:18,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 17:31:18,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-13 17:31:18,077 INFO L87 Difference]: Start difference. First operand 822 states and 1055 transitions. Second operand has 8 states, 8 states have (on average 16.5) internal successors, (132), 8 states have internal predecessors, (132), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-13 17:31:18,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:31:18,301 INFO L93 Difference]: Finished difference Result 1601 states and 2080 transitions. [2021-11-13 17:31:18,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-13 17:31:18,302 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.5) internal successors, (132), 8 states have internal predecessors, (132), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 139 [2021-11-13 17:31:18,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:31:18,308 INFO L225 Difference]: With dead ends: 1601 [2021-11-13 17:31:18,309 INFO L226 Difference]: Without dead ends: 833 [2021-11-13 17:31:18,311 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2021-11-13 17:31:18,312 INFO L933 BasicCegarLoop]: 556 mSDtfsCounter, 15 mSDsluCounter, 2755 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 76.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 3311 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.20ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 89.99ms IncrementalHoareTripleChecker+Time [2021-11-13 17:31:18,312 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 3311 Invalid, 84 Unknown, 0 Unchecked, 7.20ms Time], IncrementalHoareTripleChecker [14 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 89.99ms Time] [2021-11-13 17:31:18,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 833 states. [2021-11-13 17:31:18,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 833 to 831. [2021-11-13 17:31:18,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 831 states, 798 states have (on average 1.281954887218045) internal successors, (1023), 809 states have internal predecessors, (1023), 22 states have call successors, (22), 4 states have call predecessors, (22), 5 states have return successors, (27), 18 states have call predecessors, (27), 21 states have call successors, (27) [2021-11-13 17:31:18,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 1072 transitions. [2021-11-13 17:31:18,356 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 1072 transitions. Word has length 139 [2021-11-13 17:31:18,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:31:18,358 INFO L470 AbstractCegarLoop]: Abstraction has 831 states and 1072 transitions. [2021-11-13 17:31:18,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.5) internal successors, (132), 8 states have internal predecessors, (132), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-13 17:31:18,358 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 1072 transitions. [2021-11-13 17:31:18,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-11-13 17:31:18,362 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:31:18,362 INFO L514 BasicCegarLoop]: trace histogram [12, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:31:18,405 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-13 17:31:18,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-11-13 17:31:18,583 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-13 17:31:18,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:31:18,583 INFO L85 PathProgramCache]: Analyzing trace with hash 840532164, now seen corresponding path program 2 times [2021-11-13 17:31:18,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:31:18,584 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312382330] [2021-11-13 17:31:18,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:31:18,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:31:18,619 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-13 17:31:18,620 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [437477523] [2021-11-13 17:31:18,620 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 17:31:18,621 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:31:18,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:31:18,622 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 17:31:18,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-13 17:34:38,670 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-13 17:34:38,671 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 17:34:38,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 586 conjuncts, 37 conjunts are in the unsatisfiable core [2021-11-13 17:34:38,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:34:39,057 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 48 proven. 3 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2021-11-13 17:34:39,058 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:34:39,579 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 61 proven. 10 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2021-11-13 17:34:39,579 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:34:39,579 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312382330] [2021-11-13 17:34:39,580 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-13 17:34:39,580 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [437477523] [2021-11-13 17:34:39,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [437477523] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 17:34:39,580 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-13 17:34:39,580 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 13 [2021-11-13 17:34:39,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468884467] [2021-11-13 17:34:39,581 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-13 17:34:39,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-13 17:34:39,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:34:39,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-13 17:34:39,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-11-13 17:34:39,583 INFO L87 Difference]: Start difference. First operand 831 states and 1072 transitions. Second operand has 13 states, 13 states have (on average 14.692307692307692) internal successors, (191), 13 states have internal predecessors, (191), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-13 17:34:40,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:34:40,336 INFO L93 Difference]: Finished difference Result 1655 states and 2154 transitions. [2021-11-13 17:34:40,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-13 17:34:40,337 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 14.692307692307692) internal successors, (191), 13 states have internal predecessors, (191), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 147 [2021-11-13 17:34:40,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:34:40,348 INFO L225 Difference]: With dead ends: 1655 [2021-11-13 17:34:40,348 INFO L226 Difference]: Without dead ends: 836 [2021-11-13 17:34:40,350 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=181, Invalid=325, Unknown=0, NotChecked=0, Total=506 [2021-11-13 17:34:40,352 INFO L933 BasicCegarLoop]: 551 mSDtfsCounter, 546 mSDsluCounter, 4407 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 228.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 563 SdHoareTripleChecker+Valid, 4958 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.59ms SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 276.14ms IncrementalHoareTripleChecker+Time [2021-11-13 17:34:40,352 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [563 Valid, 4958 Invalid, 281 Unknown, 0 Unchecked, 16.59ms Time], IncrementalHoareTripleChecker [29 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 276.14ms Time] [2021-11-13 17:34:40,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2021-11-13 17:34:40,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 830. [2021-11-13 17:34:40,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 830 states, 797 states have (on average 1.286072772898369) internal successors, (1025), 808 states have internal predecessors, (1025), 22 states have call successors, (22), 4 states have call predecessors, (22), 5 states have return successors, (27), 18 states have call predecessors, (27), 21 states have call successors, (27) [2021-11-13 17:34:40,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 1074 transitions. [2021-11-13 17:34:40,421 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 1074 transitions. Word has length 147 [2021-11-13 17:34:40,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:34:40,421 INFO L470 AbstractCegarLoop]: Abstraction has 830 states and 1074 transitions. [2021-11-13 17:34:40,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 14.692307692307692) internal successors, (191), 13 states have internal predecessors, (191), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-13 17:34:40,421 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 1074 transitions. [2021-11-13 17:34:40,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-11-13 17:34:40,425 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:34:40,425 INFO L514 BasicCegarLoop]: trace histogram [22, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:34:40,543 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-13 17:34:40,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:34:40,639 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-13 17:34:40,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:34:40,640 INFO L85 PathProgramCache]: Analyzing trace with hash 476678124, now seen corresponding path program 3 times [2021-11-13 17:34:40,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:34:40,640 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216537062] [2021-11-13 17:34:40,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:34:40,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:34:40,675 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-13 17:34:40,677 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1925634751] [2021-11-13 17:34:40,677 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-13 17:34:40,678 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:34:40,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:34:40,679 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 17:34:40,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4322a7d6-3f4d-4807-a115-498e75110fcd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process