/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 18:03:14,500 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 18:03:14,503 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 18:03:14,552 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 18:03:14,553 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 18:03:14,558 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 18:03:14,562 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 18:03:14,571 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 18:03:14,574 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 18:03:14,580 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 18:03:14,582 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 18:03:14,583 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 18:03:14,585 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 18:03:14,588 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 18:03:14,590 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 18:03:14,596 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 18:03:14,598 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 18:03:14,600 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 18:03:14,604 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 18:03:14,611 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 18:03:14,617 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 18:03:14,621 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 18:03:14,622 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 18:03:14,625 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 18:03:14,636 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 18:03:14,637 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 18:03:14,637 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 18:03:14,641 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 18:03:14,642 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 18:03:14,644 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 18:03:14,645 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 18:03:14,646 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 18:03:14,648 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 18:03:14,650 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 18:03:14,651 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 18:03:14,651 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 18:03:14,652 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 18:03:14,652 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 18:03:14,653 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 18:03:14,654 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 18:03:14,655 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 18:03:14,660 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 18:03:14,718 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 18:03:14,718 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 18:03:14,718 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 18:03:14,719 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 18:03:14,719 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 18:03:14,720 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 18:03:14,721 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 18:03:14,721 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 18:03:14,721 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 18:03:14,721 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 18:03:14,721 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 18:03:14,722 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 18:03:14,722 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 18:03:14,722 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 18:03:14,722 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 18:03:14,722 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 18:03:14,723 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 18:03:14,723 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 18:03:14,723 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 18:03:14,723 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 18:03:14,723 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 18:03:14,724 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 18:03:14,724 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 18:03:14,724 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 18:03:14,724 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 18:03:14,725 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 18:03:14,725 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 18:03:14,725 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 18:03:14,725 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 18:03:14,725 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 18:03:14,726 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 18:03:14,726 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 18:03:14,726 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 18:03:14,726 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 18:03:15,104 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 18:03:15,135 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 18:03:15,140 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 18:03:15,141 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 18:03:15,142 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 18:03:15,144 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-2.i [2022-10-16 18:03:15,227 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d70f1eeb1/a4c37a71f7de4ddbaf014adecb4c2ed9/FLAG2706afa1a [2022-10-16 18:03:16,106 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 18:03:16,106 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-2.i [2022-10-16 18:03:16,148 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d70f1eeb1/a4c37a71f7de4ddbaf014adecb4c2ed9/FLAG2706afa1a [2022-10-16 18:03:16,265 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d70f1eeb1/a4c37a71f7de4ddbaf014adecb4c2ed9 [2022-10-16 18:03:16,268 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 18:03:16,275 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 18:03:16,277 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 18:03:16,277 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 18:03:16,283 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 18:03:16,285 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 06:03:16" (1/1) ... [2022-10-16 18:03:16,287 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ba341aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 06:03:16, skipping insertion in model container [2022-10-16 18:03:16,287 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 06:03:16" (1/1) ... [2022-10-16 18:03:16,296 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 18:03:16,384 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 18:03:16,885 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-2.i[33021,33034] [2022-10-16 18:03:17,092 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-2.i[49681,49694] [2022-10-16 18:03:17,113 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 18:03:17,133 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 18:03:17,172 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-2.i[33021,33034] [2022-10-16 18:03:17,400 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-2.i[49681,49694] [2022-10-16 18:03:17,415 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 18:03:17,468 INFO L208 MainTranslator]: Completed translation [2022-10-16 18:03:17,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 06:03:17 WrapperNode [2022-10-16 18:03:17,468 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 18:03:17,470 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 18:03:17,470 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 18:03:17,470 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 18:03:17,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 06:03:17" (1/1) ... [2022-10-16 18:03:17,534 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 06:03:17" (1/1) ... [2022-10-16 18:03:17,658 INFO L138 Inliner]: procedures = 177, calls = 439, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1567 [2022-10-16 18:03:17,658 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 18:03:17,659 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 18:03:17,660 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 18:03:17,660 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 18:03:17,671 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 06:03:17" (1/1) ... [2022-10-16 18:03:17,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 06:03:17" (1/1) ... [2022-10-16 18:03:17,686 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 06:03:17" (1/1) ... [2022-10-16 18:03:17,687 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 06:03:17" (1/1) ... [2022-10-16 18:03:17,762 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 06:03:17" (1/1) ... [2022-10-16 18:03:17,783 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 06:03:17" (1/1) ... [2022-10-16 18:03:17,791 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 06:03:17" (1/1) ... [2022-10-16 18:03:17,801 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 06:03:17" (1/1) ... [2022-10-16 18:03:17,821 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 18:03:17,822 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 18:03:17,822 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 18:03:17,823 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 18:03:17,824 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 06:03:17" (1/1) ... [2022-10-16 18:03:17,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 18:03:17,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 18:03:17,878 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 18:03:17,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 18:03:17,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 18:03:17,955 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-10-16 18:03:17,955 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-10-16 18:03:17,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 18:03:17,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-16 18:03:17,958 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-16 18:03:17,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 18:03:17,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 18:03:17,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-16 18:03:17,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 18:03:17,959 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-10-16 18:03:17,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-16 18:03:17,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 18:03:17,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 18:03:17,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 18:03:17,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 18:03:18,296 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 18:03:18,299 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 18:03:21,009 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 18:03:21,022 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 18:03:21,022 INFO L300 CfgBuilder]: Removed 92 assume(true) statements. [2022-10-16 18:03:21,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 06:03:21 BoogieIcfgContainer [2022-10-16 18:03:21,026 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 18:03:21,029 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 18:03:21,029 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 18:03:21,033 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 18:03:21,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 06:03:16" (1/3) ... [2022-10-16 18:03:21,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1655001e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 06:03:21, skipping insertion in model container [2022-10-16 18:03:21,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 06:03:17" (2/3) ... [2022-10-16 18:03:21,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1655001e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 06:03:21, skipping insertion in model container [2022-10-16 18:03:21,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 06:03:21" (3/3) ... [2022-10-16 18:03:21,037 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test5-2.i [2022-10-16 18:03:21,062 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 18:03:21,062 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-10-16 18:03:21,137 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 18:03:21,146 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6bbed8fd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 18:03:21,146 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-10-16 18:03:21,154 INFO L276 IsEmpty]: Start isEmpty. Operand has 302 states, 278 states have (on average 1.70863309352518) internal successors, (475), 293 states have internal predecessors, (475), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-10-16 18:03:21,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-16 18:03:21,162 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 18:03:21,163 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-16 18:03:21,163 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 18:03:21,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 18:03:21,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1126982839, now seen corresponding path program 1 times [2022-10-16 18:03:21,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 18:03:21,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626889060] [2022-10-16 18:03:21,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:03:21,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 18:03:21,320 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 18:03:21,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1602223643] [2022-10-16 18:03:21,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:03:21,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 18:03:21,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 18:03:21,326 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 18:03:21,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 18:03:21,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 18:03:21,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 18:03:21,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 18:03:21,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 18:03:21,591 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 18:03:21,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 18:03:21,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626889060] [2022-10-16 18:03:21,593 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 18:03:21,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1602223643] [2022-10-16 18:03:21,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1602223643] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 18:03:21,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 18:03:21,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 18:03:21,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452249675] [2022-10-16 18:03:21,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 18:03:21,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 18:03:21,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 18:03:21,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 18:03:21,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 18:03:21,657 INFO L87 Difference]: Start difference. First operand has 302 states, 278 states have (on average 1.70863309352518) internal successors, (475), 293 states have internal predecessors, (475), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:03:21,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 18:03:21,886 INFO L93 Difference]: Finished difference Result 854 states and 1436 transitions. [2022-10-16 18:03:21,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 18:03:21,892 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-10-16 18:03:21,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 18:03:21,913 INFO L225 Difference]: With dead ends: 854 [2022-10-16 18:03:21,914 INFO L226 Difference]: Without dead ends: 521 [2022-10-16 18:03:21,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 18:03:21,926 INFO L413 NwaCegarLoop]: 453 mSDtfsCounter, 314 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 828 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 18:03:21,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 828 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 18:03:21,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2022-10-16 18:03:22,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 341. [2022-10-16 18:03:22,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 315 states have (on average 1.3460317460317461) internal successors, (424), 332 states have internal predecessors, (424), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2022-10-16 18:03:22,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 456 transitions. [2022-10-16 18:03:22,022 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 456 transitions. Word has length 6 [2022-10-16 18:03:22,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 18:03:22,023 INFO L495 AbstractCegarLoop]: Abstraction has 341 states and 456 transitions. [2022-10-16 18:03:22,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:03:22,024 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 456 transitions. [2022-10-16 18:03:22,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-16 18:03:22,024 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 18:03:22,024 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-16 18:03:22,063 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-16 18:03:22,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-10-16 18:03:22,240 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 18:03:22,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 18:03:22,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1126331241, now seen corresponding path program 1 times [2022-10-16 18:03:22,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 18:03:22,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401164119] [2022-10-16 18:03:22,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:03:22,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 18:03:22,270 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 18:03:22,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [12420056] [2022-10-16 18:03:22,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:03:22,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 18:03:22,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 18:03:22,272 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 18:03:22,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 18:03:22,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 18:03:22,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 18:03:22,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 18:03:22,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 18:03:22,453 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 18:03:22,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 18:03:22,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401164119] [2022-10-16 18:03:22,454 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 18:03:22,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [12420056] [2022-10-16 18:03:22,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [12420056] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 18:03:22,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 18:03:22,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 18:03:22,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688146452] [2022-10-16 18:03:22,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 18:03:22,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 18:03:22,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 18:03:22,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 18:03:22,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 18:03:22,458 INFO L87 Difference]: Start difference. First operand 341 states and 456 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:03:22,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 18:03:22,542 INFO L93 Difference]: Finished difference Result 522 states and 688 transitions. [2022-10-16 18:03:22,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 18:03:22,543 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-10-16 18:03:22,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 18:03:22,547 INFO L225 Difference]: With dead ends: 522 [2022-10-16 18:03:22,547 INFO L226 Difference]: Without dead ends: 519 [2022-10-16 18:03:22,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 18:03:22,550 INFO L413 NwaCegarLoop]: 415 mSDtfsCounter, 308 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 748 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 18:03:22,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 748 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 18:03:22,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2022-10-16 18:03:22,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 345. [2022-10-16 18:03:22,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 319 states have (on average 1.3385579937304075) internal successors, (427), 336 states have internal predecessors, (427), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2022-10-16 18:03:22,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 459 transitions. [2022-10-16 18:03:22,580 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 459 transitions. Word has length 6 [2022-10-16 18:03:22,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 18:03:22,581 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 459 transitions. [2022-10-16 18:03:22,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:03:22,581 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 459 transitions. [2022-10-16 18:03:22,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-10-16 18:03:22,586 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 18:03:22,586 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 18:03:22,626 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-10-16 18:03:22,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-10-16 18:03:22,801 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 18:03:22,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 18:03:22,803 INFO L85 PathProgramCache]: Analyzing trace with hash 765811442, now seen corresponding path program 1 times [2022-10-16 18:03:22,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 18:03:22,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444106730] [2022-10-16 18:03:22,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:03:22,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 18:03:23,165 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 18:03:23,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [943167462] [2022-10-16 18:03:23,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:03:23,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 18:03:23,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 18:03:23,169 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 18:03:23,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 18:03:24,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 18:03:24,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 2978 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 18:03:24,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 18:03:24,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 18:03:24,515 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 18:03:24,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 18:03:24,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444106730] [2022-10-16 18:03:24,516 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 18:03:24,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [943167462] [2022-10-16 18:03:24,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [943167462] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 18:03:24,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 18:03:24,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 18:03:24,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784682831] [2022-10-16 18:03:24,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 18:03:24,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 18:03:24,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 18:03:24,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 18:03:24,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 18:03:24,520 INFO L87 Difference]: Start difference. First operand 345 states and 459 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:03:24,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 18:03:24,604 INFO L93 Difference]: Finished difference Result 705 states and 943 transitions. [2022-10-16 18:03:24,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 18:03:24,604 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 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 103 [2022-10-16 18:03:24,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 18:03:24,607 INFO L225 Difference]: With dead ends: 705 [2022-10-16 18:03:24,608 INFO L226 Difference]: Without dead ends: 366 [2022-10-16 18:03:24,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 18:03:24,612 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 9 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 18:03:24,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 645 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 18:03:24,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2022-10-16 18:03:24,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 365. [2022-10-16 18:03:24,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 339 states have (on average 1.3185840707964602) internal successors, (447), 356 states have internal predecessors, (447), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2022-10-16 18:03:24,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 479 transitions. [2022-10-16 18:03:24,632 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 479 transitions. Word has length 103 [2022-10-16 18:03:24,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 18:03:24,633 INFO L495 AbstractCegarLoop]: Abstraction has 365 states and 479 transitions. [2022-10-16 18:03:24,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:03:24,633 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 479 transitions. [2022-10-16 18:03:24,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-10-16 18:03:24,638 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 18:03:24,638 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 18:03:24,675 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-10-16 18:03:24,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 18:03:24,850 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 18:03:24,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 18:03:24,851 INFO L85 PathProgramCache]: Analyzing trace with hash 525571696, now seen corresponding path program 1 times [2022-10-16 18:03:24,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 18:03:24,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563586037] [2022-10-16 18:03:24,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:03:24,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 18:03:25,115 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 18:03:25,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1643963907] [2022-10-16 18:03:25,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:03:25,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 18:03:25,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 18:03:25,122 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 18:03:25,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 18:03:26,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 18:03:26,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 2980 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 18:03:26,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 18:03:26,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 18:03:26,474 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 18:03:26,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 18:03:26,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563586037] [2022-10-16 18:03:26,475 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 18:03:26,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1643963907] [2022-10-16 18:03:26,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1643963907] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 18:03:26,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 18:03:26,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 18:03:26,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282701294] [2022-10-16 18:03:26,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 18:03:26,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 18:03:26,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 18:03:26,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 18:03:26,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 18:03:26,481 INFO L87 Difference]: Start difference. First operand 365 states and 479 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:03:26,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 18:03:26,559 INFO L93 Difference]: Finished difference Result 745 states and 983 transitions. [2022-10-16 18:03:26,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 18:03:26,560 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 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 103 [2022-10-16 18:03:26,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 18:03:26,568 INFO L225 Difference]: With dead ends: 745 [2022-10-16 18:03:26,575 INFO L226 Difference]: Without dead ends: 386 [2022-10-16 18:03:26,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 18:03:26,584 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 9 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 18:03:26,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 645 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 18:03:26,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2022-10-16 18:03:26,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 385. [2022-10-16 18:03:26,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 359 states have (on average 1.3008356545961002) internal successors, (467), 376 states have internal predecessors, (467), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2022-10-16 18:03:26,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 499 transitions. [2022-10-16 18:03:26,616 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 499 transitions. Word has length 103 [2022-10-16 18:03:26,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 18:03:26,617 INFO L495 AbstractCegarLoop]: Abstraction has 385 states and 499 transitions. [2022-10-16 18:03:26,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:03:26,617 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 499 transitions. [2022-10-16 18:03:26,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-10-16 18:03:26,620 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 18:03:26,620 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 18:03:26,656 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-10-16 18:03:26,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 18:03:26,826 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 18:03:26,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 18:03:26,827 INFO L85 PathProgramCache]: Analyzing trace with hash 919938482, now seen corresponding path program 1 times [2022-10-16 18:03:26,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 18:03:26,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347666035] [2022-10-16 18:03:26,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:03:26,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 18:03:27,049 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 18:03:27,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [11551416] [2022-10-16 18:03:27,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:03:27,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 18:03:27,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 18:03:27,051 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 18:03:27,073 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 18:03:28,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 18:03:28,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 2982 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 18:03:28,452 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 18:03:28,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 18:03:28,481 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 18:03:28,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 18:03:28,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347666035] [2022-10-16 18:03:28,482 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 18:03:28,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [11551416] [2022-10-16 18:03:28,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [11551416] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 18:03:28,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 18:03:28,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 18:03:28,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261699382] [2022-10-16 18:03:28,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 18:03:28,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 18:03:28,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 18:03:28,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 18:03:28,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 18:03:28,485 INFO L87 Difference]: Start difference. First operand 385 states and 499 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:03:28,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 18:03:28,583 INFO L93 Difference]: Finished difference Result 755 states and 983 transitions. [2022-10-16 18:03:28,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 18:03:28,584 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 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 103 [2022-10-16 18:03:28,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 18:03:28,587 INFO L225 Difference]: With dead ends: 755 [2022-10-16 18:03:28,587 INFO L226 Difference]: Without dead ends: 376 [2022-10-16 18:03:28,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 18:03:28,590 INFO L413 NwaCegarLoop]: 331 mSDtfsCounter, 309 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 677 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 18:03:28,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [320 Valid, 677 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 18:03:28,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2022-10-16 18:03:28,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 371. [2022-10-16 18:03:28,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 345 states have (on average 1.2927536231884058) internal successors, (446), 362 states have internal predecessors, (446), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2022-10-16 18:03:28,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 478 transitions. [2022-10-16 18:03:28,611 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 478 transitions. Word has length 103 [2022-10-16 18:03:28,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 18:03:28,612 INFO L495 AbstractCegarLoop]: Abstraction has 371 states and 478 transitions. [2022-10-16 18:03:28,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:03:28,613 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 478 transitions. [2022-10-16 18:03:28,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-10-16 18:03:28,615 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 18:03:28,615 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 18:03:28,663 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-10-16 18:03:28,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 18:03:28,831 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 18:03:28,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 18:03:28,832 INFO L85 PathProgramCache]: Analyzing trace with hash 6087360, now seen corresponding path program 1 times [2022-10-16 18:03:28,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 18:03:28,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281386068] [2022-10-16 18:03:28,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:03:28,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 18:03:29,134 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 18:03:29,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [484541164] [2022-10-16 18:03:29,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:03:29,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 18:03:29,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 18:03:29,136 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 18:03:29,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 18:03:30,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 18:03:30,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 2968 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 18:03:30,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 18:03:30,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 18:03:30,566 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 18:03:30,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 18:03:30,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281386068] [2022-10-16 18:03:30,567 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 18:03:30,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [484541164] [2022-10-16 18:03:30,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [484541164] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 18:03:30,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 18:03:30,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 18:03:30,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042952738] [2022-10-16 18:03:30,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 18:03:30,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 18:03:30,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 18:03:30,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 18:03:30,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 18:03:30,570 INFO L87 Difference]: Start difference. First operand 371 states and 478 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:03:30,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 18:03:30,667 INFO L93 Difference]: Finished difference Result 816 states and 1050 transitions. [2022-10-16 18:03:30,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 18:03:30,668 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 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 103 [2022-10-16 18:03:30,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 18:03:30,672 INFO L225 Difference]: With dead ends: 816 [2022-10-16 18:03:30,672 INFO L226 Difference]: Without dead ends: 451 [2022-10-16 18:03:30,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 18:03:30,674 INFO L413 NwaCegarLoop]: 427 mSDtfsCounter, 302 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 972 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 18:03:30,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 972 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 18:03:30,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2022-10-16 18:03:30,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 357. [2022-10-16 18:03:30,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 331 states have (on average 1.283987915407855) internal successors, (425), 348 states have internal predecessors, (425), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2022-10-16 18:03:30,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 457 transitions. [2022-10-16 18:03:30,694 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 457 transitions. Word has length 103 [2022-10-16 18:03:30,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 18:03:30,695 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 457 transitions. [2022-10-16 18:03:30,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:03:30,695 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 457 transitions. [2022-10-16 18:03:30,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-10-16 18:03:30,697 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 18:03:30,697 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 18:03:30,740 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-10-16 18:03:30,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 18:03:30,912 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 18:03:30,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 18:03:30,913 INFO L85 PathProgramCache]: Analyzing trace with hash 2030023538, now seen corresponding path program 1 times [2022-10-16 18:03:30,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 18:03:30,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496942435] [2022-10-16 18:03:30,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:03:30,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 18:03:31,110 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 18:03:31,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [238298219] [2022-10-16 18:03:31,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:03:31,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 18:03:31,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 18:03:31,113 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 18:03:31,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 18:03:32,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 18:03:32,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 2954 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 18:03:32,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 18:03:32,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 18:03:32,844 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 18:03:32,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 18:03:32,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496942435] [2022-10-16 18:03:32,844 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 18:03:32,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [238298219] [2022-10-16 18:03:32,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [238298219] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 18:03:32,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 18:03:32,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 18:03:32,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533542904] [2022-10-16 18:03:32,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 18:03:32,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 18:03:32,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 18:03:32,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 18:03:32,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 18:03:32,847 INFO L87 Difference]: Start difference. First operand 357 states and 457 transitions. Second operand has 4 states, 3 states have (on average 34.333333333333336) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:03:32,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 18:03:32,942 INFO L93 Difference]: Finished difference Result 543 states and 681 transitions. [2022-10-16 18:03:32,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 18:03:32,943 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 34.333333333333336) internal successors, (103), 4 states have internal predecessors, (103), 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 103 [2022-10-16 18:03:32,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 18:03:32,947 INFO L225 Difference]: With dead ends: 543 [2022-10-16 18:03:32,947 INFO L226 Difference]: Without dead ends: 542 [2022-10-16 18:03:32,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 18:03:32,949 INFO L413 NwaCegarLoop]: 366 mSDtfsCounter, 199 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 18:03:32,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 1048 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 18:03:32,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2022-10-16 18:03:32,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 538. [2022-10-16 18:03:32,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 506 states have (on average 1.2529644268774704) internal successors, (634), 523 states have internal predecessors, (634), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 14 states have call predecessors, (22), 22 states have call successors, (22) [2022-10-16 18:03:32,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 678 transitions. [2022-10-16 18:03:32,979 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 678 transitions. Word has length 103 [2022-10-16 18:03:32,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 18:03:32,981 INFO L495 AbstractCegarLoop]: Abstraction has 538 states and 678 transitions. [2022-10-16 18:03:32,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 34.333333333333336) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:03:32,982 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 678 transitions. [2022-10-16 18:03:32,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-10-16 18:03:32,983 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 18:03:32,987 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 18:03:33,030 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 18:03:33,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 18:03:33,205 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 18:03:33,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 18:03:33,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1493778997, now seen corresponding path program 1 times [2022-10-16 18:03:33,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 18:03:33,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412251626] [2022-10-16 18:03:33,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:03:33,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 18:03:33,425 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 18:03:33,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [92051494] [2022-10-16 18:03:33,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:03:33,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 18:03:33,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 18:03:33,428 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 18:03:33,448 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 18:03:35,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 18:03:35,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 2955 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 18:03:35,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 18:03:35,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 18:03:35,366 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 18:03:35,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 18:03:35,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412251626] [2022-10-16 18:03:35,366 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 18:03:35,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [92051494] [2022-10-16 18:03:35,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [92051494] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 18:03:35,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 18:03:35,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 18:03:35,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050361394] [2022-10-16 18:03:35,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 18:03:35,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 18:03:35,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 18:03:35,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 18:03:35,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 18:03:35,370 INFO L87 Difference]: Start difference. First operand 538 states and 678 transitions. Second operand has 4 states, 3 states have (on average 34.666666666666664) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:03:35,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 18:03:35,442 INFO L93 Difference]: Finished difference Result 538 states and 678 transitions. [2022-10-16 18:03:35,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 18:03:35,443 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 34.666666666666664) internal successors, (104), 4 states have internal predecessors, (104), 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 104 [2022-10-16 18:03:35,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 18:03:35,448 INFO L225 Difference]: With dead ends: 538 [2022-10-16 18:03:35,449 INFO L226 Difference]: Without dead ends: 536 [2022-10-16 18:03:35,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 18:03:35,453 INFO L413 NwaCegarLoop]: 317 mSDtfsCounter, 202 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 652 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 18:03:35,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 652 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 18:03:35,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2022-10-16 18:03:35,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 535. [2022-10-16 18:03:35,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 505 states have (on average 1.2495049504950495) internal successors, (631), 520 states have internal predecessors, (631), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 14 states have call predecessors, (22), 22 states have call successors, (22) [2022-10-16 18:03:35,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 675 transitions. [2022-10-16 18:03:35,484 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 675 transitions. Word has length 104 [2022-10-16 18:03:35,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 18:03:35,485 INFO L495 AbstractCegarLoop]: Abstraction has 535 states and 675 transitions. [2022-10-16 18:03:35,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 34.666666666666664) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:03:35,486 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 675 transitions. [2022-10-16 18:03:35,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-10-16 18:03:35,491 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 18:03:35,494 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 18:03:35,543 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 18:03:35,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-10-16 18:03:35,711 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 18:03:35,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 18:03:35,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1366065166, now seen corresponding path program 1 times [2022-10-16 18:03:35,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 18:03:35,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346996167] [2022-10-16 18:03:35,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:03:35,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 18:03:35,936 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 18:03:35,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [151360818] [2022-10-16 18:03:35,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:03:35,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 18:03:35,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 18:03:35,938 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 18:03:35,955 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 18:03:37,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 18:03:37,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 2984 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 18:03:37,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 18:03:38,125 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 18:03:38,126 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 18:03:38,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 18:03:38,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346996167] [2022-10-16 18:03:38,127 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 18:03:38,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [151360818] [2022-10-16 18:03:38,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [151360818] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 18:03:38,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 18:03:38,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 18:03:38,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717391801] [2022-10-16 18:03:38,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 18:03:38,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 18:03:38,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 18:03:38,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 18:03:38,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 18:03:38,130 INFO L87 Difference]: Start difference. First operand 535 states and 675 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:03:38,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 18:03:38,228 INFO L93 Difference]: Finished difference Result 1001 states and 1288 transitions. [2022-10-16 18:03:38,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 18:03:38,228 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 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 108 [2022-10-16 18:03:38,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 18:03:38,233 INFO L225 Difference]: With dead ends: 1001 [2022-10-16 18:03:38,233 INFO L226 Difference]: Without dead ends: 613 [2022-10-16 18:03:38,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 18:03:38,236 INFO L413 NwaCegarLoop]: 391 mSDtfsCounter, 138 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 18:03:38,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 703 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 18:03:38,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2022-10-16 18:03:38,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 609. [2022-10-16 18:03:38,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 609 states, 569 states have (on average 1.2688927943760984) internal successors, (722), 594 states have internal predecessors, (722), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 16 states have call predecessors, (32), 32 states have call successors, (32) [2022-10-16 18:03:38,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 786 transitions. [2022-10-16 18:03:38,373 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 786 transitions. Word has length 108 [2022-10-16 18:03:38,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 18:03:38,373 INFO L495 AbstractCegarLoop]: Abstraction has 609 states and 786 transitions. [2022-10-16 18:03:38,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:03:38,374 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 786 transitions. [2022-10-16 18:03:38,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-10-16 18:03:38,375 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 18:03:38,376 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 18:03:38,429 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-10-16 18:03:38,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 18:03:38,590 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 18:03:38,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 18:03:38,591 INFO L85 PathProgramCache]: Analyzing trace with hash -434111421, now seen corresponding path program 1 times [2022-10-16 18:03:38,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 18:03:38,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868297960] [2022-10-16 18:03:38,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:03:38,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 18:03:38,731 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 18:03:38,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1825206077] [2022-10-16 18:03:38,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:03:38,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 18:03:38,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 18:03:38,733 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 18:03:38,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-16 18:03:40,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 18:03:40,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 2121 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 18:03:40,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 18:03:40,515 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 18:03:40,516 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 18:03:40,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 18:03:40,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868297960] [2022-10-16 18:03:40,516 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 18:03:40,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1825206077] [2022-10-16 18:03:40,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1825206077] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 18:03:40,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 18:03:40,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 18:03:40,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978573310] [2022-10-16 18:03:40,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 18:03:40,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 18:03:40,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 18:03:40,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 18:03:40,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 18:03:40,521 INFO L87 Difference]: Start difference. First operand 609 states and 786 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 18:03:40,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 18:03:40,617 INFO L93 Difference]: Finished difference Result 1158 states and 1504 transitions. [2022-10-16 18:03:40,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 18:03:40,620 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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 123 [2022-10-16 18:03:40,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 18:03:40,627 INFO L225 Difference]: With dead ends: 1158 [2022-10-16 18:03:40,627 INFO L226 Difference]: Without dead ends: 607 [2022-10-16 18:03:40,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 18:03:40,629 INFO L413 NwaCegarLoop]: 333 mSDtfsCounter, 15 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 18:03:40,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 651 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 18:03:40,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2022-10-16 18:03:40,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 607. [2022-10-16 18:03:40,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 567 states have (on average 1.2680776014109347) internal successors, (719), 592 states have internal predecessors, (719), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 16 states have call predecessors, (32), 32 states have call successors, (32) [2022-10-16 18:03:40,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 783 transitions. [2022-10-16 18:03:40,664 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 783 transitions. Word has length 123 [2022-10-16 18:03:40,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 18:03:40,664 INFO L495 AbstractCegarLoop]: Abstraction has 607 states and 783 transitions. [2022-10-16 18:03:40,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 18:03:40,665 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 783 transitions. [2022-10-16 18:03:40,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-10-16 18:03:40,667 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 18:03:40,667 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1] [2022-10-16 18:03:40,722 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-16 18:03:40,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-10-16 18:03:40,872 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 18:03:40,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 18:03:40,873 INFO L85 PathProgramCache]: Analyzing trace with hash -138017342, now seen corresponding path program 1 times [2022-10-16 18:03:40,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 18:03:40,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046087902] [2022-10-16 18:03:40,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:03:40,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 18:03:40,986 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 18:03:40,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [811603992] [2022-10-16 18:03:40,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:03:40,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 18:03:40,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 18:03:40,988 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 18:03:40,989 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-16 18:03:43,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 18:03:43,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 1258 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 18:03:43,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 18:03:43,486 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 18:03:43,486 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 18:03:43,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 18:03:43,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046087902] [2022-10-16 18:03:43,487 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 18:03:43,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [811603992] [2022-10-16 18:03:43,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [811603992] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 18:03:43,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 18:03:43,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 18:03:43,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021267708] [2022-10-16 18:03:43,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 18:03:43,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 18:03:43,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 18:03:43,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 18:03:43,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 18:03:43,489 INFO L87 Difference]: Start difference. First operand 607 states and 783 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 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) [2022-10-16 18:03:43,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 18:03:43,568 INFO L93 Difference]: Finished difference Result 1165 states and 1523 transitions. [2022-10-16 18:03:43,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 18:03:43,569 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 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 138 [2022-10-16 18:03:43,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 18:03:43,573 INFO L225 Difference]: With dead ends: 1165 [2022-10-16 18:03:43,573 INFO L226 Difference]: Without dead ends: 610 [2022-10-16 18:03:43,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 18:03:43,576 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 2 mSDsluCounter, 653 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 983 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 18:03:43,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 983 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 18:03:43,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2022-10-16 18:03:43,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 610. [2022-10-16 18:03:43,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 610 states, 569 states have (on average 1.2688927943760984) internal successors, (722), 595 states have internal predecessors, (722), 32 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (36), 16 states have call predecessors, (36), 32 states have call successors, (36) [2022-10-16 18:03:43,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 790 transitions. [2022-10-16 18:03:43,661 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 790 transitions. Word has length 138 [2022-10-16 18:03:43,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 18:03:43,662 INFO L495 AbstractCegarLoop]: Abstraction has 610 states and 790 transitions. [2022-10-16 18:03:43,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 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) [2022-10-16 18:03:43,662 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 790 transitions. [2022-10-16 18:03:43,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-10-16 18:03:43,664 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 18:03:43,665 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1] [2022-10-16 18:03:43,719 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-16 18:03:43,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-10-16 18:03:43,876 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 18:03:43,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 18:03:43,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1571468350, now seen corresponding path program 1 times [2022-10-16 18:03:43,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 18:03:43,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308721395] [2022-10-16 18:03:43,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:03:43,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 18:03:43,989 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 18:03:43,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [796176890] [2022-10-16 18:03:43,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:03:43,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 18:03:43,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 18:03:43,991 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 18:03:44,010 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process