/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_FNV_test10-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 18:01:17,649 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 18:01:17,653 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 18:01:17,709 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 18:01:17,709 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 18:01:17,714 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 18:01:17,718 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 18:01:17,727 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 18:01:17,729 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 18:01:17,735 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 18:01:17,737 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 18:01:17,740 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 18:01:17,741 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 18:01:17,744 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 18:01:17,746 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 18:01:17,752 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 18:01:17,754 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 18:01:17,756 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 18:01:17,762 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 18:01:17,772 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 18:01:17,777 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 18:01:17,779 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 18:01:17,802 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 18:01:17,804 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 18:01:17,815 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 18:01:17,815 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 18:01:17,816 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 18:01:17,817 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 18:01:17,817 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 18:01:17,820 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 18:01:17,820 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 18:01:17,821 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 18:01:17,824 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 18:01:17,824 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 18:01:17,826 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 18:01:17,826 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 18:01:17,827 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 18:01:17,827 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 18:01:17,827 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 18:01:17,828 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 18:01:17,830 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 18:01:17,831 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 18:01:17,888 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 18:01:17,888 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 18:01:17,889 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 18:01:17,889 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 18:01:17,892 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 18:01:17,892 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 18:01:17,895 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 18:01:17,895 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 18:01:17,895 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 18:01:17,896 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 18:01:17,897 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 18:01:17,897 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 18:01:17,897 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 18:01:17,897 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 18:01:17,898 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 18:01:17,898 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 18:01:17,898 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 18:01:17,898 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 18:01:17,898 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 18:01:17,899 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 18:01:17,899 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 18:01:17,899 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 18:01:17,899 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 18:01:17,899 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 18:01:17,900 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 18:01:17,900 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 18:01:17,900 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 18:01:17,900 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 18:01:17,900 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 18:01:17,901 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 18:01:17,901 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 18:01:17,901 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 18:01:17,901 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 18:01:17,902 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 18:01:18,352 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 18:01:18,380 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 18:01:18,384 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 18:01:18,386 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 18:01:18,386 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 18:01:18,388 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-2.i [2022-10-16 18:01:18,465 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07ec5d428/eabe463a04e940da9847a438461444dc/FLAGd8deb7a56 [2022-10-16 18:01:19,370 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 18:01:19,371 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-2.i [2022-10-16 18:01:19,394 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07ec5d428/eabe463a04e940da9847a438461444dc/FLAGd8deb7a56 [2022-10-16 18:01:19,569 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07ec5d428/eabe463a04e940da9847a438461444dc [2022-10-16 18:01:19,573 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 18:01:19,579 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 18:01:19,581 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 18:01:19,581 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 18:01:19,591 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 18:01:19,592 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 06:01:19" (1/1) ... [2022-10-16 18:01:19,593 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20d9f204 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 06:01:19, skipping insertion in model container [2022-10-16 18:01:19,594 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 06:01:19" (1/1) ... [2022-10-16 18:01:19,602 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 18:01:19,669 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 18:01:20,182 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_FNV_test10-2.i[33022,33035] [2022-10-16 18:01:20,566 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 18:01:20,589 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 18:01:20,629 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_FNV_test10-2.i[33022,33035] [2022-10-16 18:01:20,792 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 18:01:20,861 INFO L208 MainTranslator]: Completed translation [2022-10-16 18:01:20,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 06:01:20 WrapperNode [2022-10-16 18:01:20,862 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 18:01:20,863 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 18:01:20,864 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 18:01:20,864 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 18:01:20,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 06:01:20" (1/1) ... [2022-10-16 18:01:20,962 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 06:01:20" (1/1) ... [2022-10-16 18:01:21,106 INFO L138 Inliner]: procedures = 177, calls = 575, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2334 [2022-10-16 18:01:21,106 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 18:01:21,108 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 18:01:21,108 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 18:01:21,108 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 18:01:21,119 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 06:01:20" (1/1) ... [2022-10-16 18:01:21,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 06:01:20" (1/1) ... [2022-10-16 18:01:21,142 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 06:01:20" (1/1) ... [2022-10-16 18:01:21,143 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 06:01:20" (1/1) ... [2022-10-16 18:01:21,263 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 06:01:20" (1/1) ... [2022-10-16 18:01:21,290 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 06:01:20" (1/1) ... [2022-10-16 18:01:21,301 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 06:01:20" (1/1) ... [2022-10-16 18:01:21,313 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 06:01:20" (1/1) ... [2022-10-16 18:01:21,344 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 18:01:21,346 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 18:01:21,346 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 18:01:21,347 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 18:01:21,348 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 06:01:20" (1/1) ... [2022-10-16 18:01:21,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 18:01:21,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 18:01:21,391 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 18:01:21,406 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 18:01:21,464 INFO L130 BoogieDeclarations]: Found specification of procedure test_int_int [2022-10-16 18:01:21,464 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int_int [2022-10-16 18:01:21,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 18:01:21,464 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-10-16 18:01:21,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-10-16 18:01:21,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 18:01:21,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-16 18:01:21,465 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-16 18:01:21,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 18:01:21,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 18:01:21,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-16 18:01:21,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 18:01:21,467 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-10-16 18:01:21,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-16 18:01:21,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 18:01:21,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 18:01:21,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 18:01:21,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 18:01:21,897 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 18:01:21,901 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 18:01:25,432 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 18:01:25,446 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 18:01:25,446 INFO L300 CfgBuilder]: Removed 160 assume(true) statements. [2022-10-16 18:01:25,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 06:01:25 BoogieIcfgContainer [2022-10-16 18:01:25,450 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 18:01:25,453 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 18:01:25,453 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 18:01:25,457 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 18:01:25,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 06:01:19" (1/3) ... [2022-10-16 18:01:25,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41b0dd7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 06:01:25, skipping insertion in model container [2022-10-16 18:01:25,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 06:01:20" (2/3) ... [2022-10-16 18:01:25,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41b0dd7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 06:01:25, skipping insertion in model container [2022-10-16 18:01:25,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 06:01:25" (3/3) ... [2022-10-16 18:01:25,461 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test10-2.i [2022-10-16 18:01:25,487 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 18:01:25,487 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-10-16 18:01:25,568 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 18:01:25,578 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;@1ffd8446, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 18:01:25,578 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-10-16 18:01:25,586 INFO L276 IsEmpty]: Start isEmpty. Operand has 467 states, 443 states have (on average 1.7133182844243793) internal successors, (759), 453 states have internal predecessors, (759), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2022-10-16 18:01:25,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 18:01:25,596 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 18:01:25,597 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-16 18:01:25,598 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 18:01:25,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 18:01:25,605 INFO L85 PathProgramCache]: Analyzing trace with hash -165268689, now seen corresponding path program 1 times [2022-10-16 18:01:25,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 18:01:25,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829808581] [2022-10-16 18:01:25,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:01:25,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 18:01:25,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 18:01:25,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 18:01:25,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829808581] [2022-10-16 18:01:25,887 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-10-16 18:01:25,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1682540291] [2022-10-16 18:01:25,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:01:25,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 18:01:25,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 18:01:25,895 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 18:01:25,914 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 18:01:26,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 18:01:26,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 1 conjunts are in the unsatisfiable core [2022-10-16 18:01:26,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 18:01:26,189 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 18:01:26,189 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 18:01:26,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1682540291] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 18:01:26,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 18:01:26,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 18:01:26,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254848801] [2022-10-16 18:01:26,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 18:01:26,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-16 18:01:26,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 18:01:26,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-16 18:01:26,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 18:01:26,242 INFO L87 Difference]: Start difference. First operand has 467 states, 443 states have (on average 1.7133182844243793) internal successors, (759), 453 states have internal predecessors, (759), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:01:26,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 18:01:26,345 INFO L93 Difference]: Finished difference Result 932 states and 1580 transitions. [2022-10-16 18:01:26,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-16 18:01:26,349 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-10-16 18:01:26,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 18:01:26,368 INFO L225 Difference]: With dead ends: 932 [2022-10-16 18:01:26,369 INFO L226 Difference]: Without dead ends: 434 [2022-10-16 18:01:26,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 18:01:26,381 INFO L413 NwaCegarLoop]: 619 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 18:01:26,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 619 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 18:01:26,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2022-10-16 18:01:26,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 434. [2022-10-16 18:01:26,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 411 states have (on average 1.3333333333333333) internal successors, (548), 421 states have internal predecessors, (548), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2022-10-16 18:01:26,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 575 transitions. [2022-10-16 18:01:26,470 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 575 transitions. Word has length 7 [2022-10-16 18:01:26,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 18:01:26,471 INFO L495 AbstractCegarLoop]: Abstraction has 434 states and 575 transitions. [2022-10-16 18:01:26,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:01:26,471 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 575 transitions. [2022-10-16 18:01:26,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 18:01:26,472 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 18:01:26,472 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-16 18:01:26,499 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 18:01:26,680 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 18:01:26,682 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 18:01:26,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 18:01:26,683 INFO L85 PathProgramCache]: Analyzing trace with hash -165266767, now seen corresponding path program 1 times [2022-10-16 18:01:26,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 18:01:26,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86730333] [2022-10-16 18:01:26,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:01:26,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 18:01:26,748 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 18:01:26,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [16472676] [2022-10-16 18:01:26,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:01:26,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 18:01:26,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 18:01:26,759 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 18:01:26,775 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 18:01:26,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 18:01:26,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 10 conjunts are in the unsatisfiable core [2022-10-16 18:01:26,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 18:01:27,022 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 18:01:27,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 18:01:27,101 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-16 18:01:27,110 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 18:01:27,110 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 18:01:27,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 18:01:27,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86730333] [2022-10-16 18:01:27,111 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 18:01:27,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [16472676] [2022-10-16 18:01:27,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [16472676] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 18:01:27,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 18:01:27,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 18:01:27,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758772116] [2022-10-16 18:01:27,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 18:01:27,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 18:01:27,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 18:01:27,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 18:01:27,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 18:01:27,115 INFO L87 Difference]: Start difference. First operand 434 states and 575 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:01:28,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 18:01:28,492 INFO L93 Difference]: Finished difference Result 524 states and 695 transitions. [2022-10-16 18:01:28,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 18:01:28,493 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-10-16 18:01:28,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 18:01:28,497 INFO L225 Difference]: With dead ends: 524 [2022-10-16 18:01:28,498 INFO L226 Difference]: Without dead ends: 522 [2022-10-16 18:01:28,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-16 18:01:28,500 INFO L413 NwaCegarLoop]: 532 mSDtfsCounter, 198 mSDsluCounter, 1330 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 1862 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-10-16 18:01:28,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 1862 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-10-16 18:01:28,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2022-10-16 18:01:28,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 440. [2022-10-16 18:01:28,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 417 states have (on average 1.330935251798561) internal successors, (555), 427 states have internal predecessors, (555), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2022-10-16 18:01:28,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 582 transitions. [2022-10-16 18:01:28,533 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 582 transitions. Word has length 7 [2022-10-16 18:01:28,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 18:01:28,533 INFO L495 AbstractCegarLoop]: Abstraction has 440 states and 582 transitions. [2022-10-16 18:01:28,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:01:28,534 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 582 transitions. [2022-10-16 18:01:28,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-10-16 18:01:28,536 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 18:01:28,537 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] [2022-10-16 18:01:28,567 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 18:01:28,751 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 18:01:28,752 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 18:01:28,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 18:01:28,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1977047097, now seen corresponding path program 1 times [2022-10-16 18:01:28,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 18:01:28,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519408880] [2022-10-16 18:01:28,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:01:28,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 18:01:28,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 18:01:29,362 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 18:01:29,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 18:01:29,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519408880] [2022-10-16 18:01:29,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519408880] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 18:01:29,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 18:01:29,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 18:01:29,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738133972] [2022-10-16 18:01:29,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 18:01:29,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 18:01:29,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 18:01:29,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 18:01:29,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 18:01:29,370 INFO L87 Difference]: Start difference. First operand 440 states and 582 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:01:29,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 18:01:29,908 INFO L93 Difference]: Finished difference Result 688 states and 915 transitions. [2022-10-16 18:01:29,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 18:01:29,909 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-10-16 18:01:29,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 18:01:29,912 INFO L225 Difference]: With dead ends: 688 [2022-10-16 18:01:29,913 INFO L226 Difference]: Without dead ends: 440 [2022-10-16 18:01:29,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 18:01:29,915 INFO L413 NwaCegarLoop]: 571 mSDtfsCounter, 3 mSDsluCounter, 978 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1549 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 18:01:29,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1549 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 18:01:29,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2022-10-16 18:01:29,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 440. [2022-10-16 18:01:29,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 417 states have (on average 1.328537170263789) internal successors, (554), 427 states have internal predecessors, (554), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2022-10-16 18:01:29,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 581 transitions. [2022-10-16 18:01:29,961 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 581 transitions. Word has length 44 [2022-10-16 18:01:29,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 18:01:29,962 INFO L495 AbstractCegarLoop]: Abstraction has 440 states and 581 transitions. [2022-10-16 18:01:29,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:01:29,962 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 581 transitions. [2022-10-16 18:01:29,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-10-16 18:01:29,965 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 18:01:29,965 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] [2022-10-16 18:01:29,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 18:01:29,966 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 18:01:29,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 18:01:29,966 INFO L85 PathProgramCache]: Analyzing trace with hash 772269224, now seen corresponding path program 1 times [2022-10-16 18:01:29,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 18:01:29,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578372097] [2022-10-16 18:01:29,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:01:29,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 18:01:30,089 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 18:01:30,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [797448244] [2022-10-16 18:01:30,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:01:30,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 18:01:30,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 18:01:30,091 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 18:01:30,118 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 18:01:30,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 18:01:30,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 1554 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 18:01:30,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 18:01:30,725 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 18:01:30,725 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 18:01:30,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 18:01:30,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578372097] [2022-10-16 18:01:30,726 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 18:01:30,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [797448244] [2022-10-16 18:01:30,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [797448244] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 18:01:30,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 18:01:30,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 18:01:30,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908887991] [2022-10-16 18:01:30,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 18:01:30,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 18:01:30,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 18:01:30,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 18:01:30,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 18:01:30,729 INFO L87 Difference]: Start difference. First operand 440 states and 581 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:01:30,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 18:01:30,806 INFO L93 Difference]: Finished difference Result 893 states and 1185 transitions. [2022-10-16 18:01:30,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 18:01:30,807 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-10-16 18:01:30,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 18:01:30,810 INFO L225 Difference]: With dead ends: 893 [2022-10-16 18:01:30,811 INFO L226 Difference]: Without dead ends: 461 [2022-10-16 18:01:30,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 18:01:30,813 INFO L413 NwaCegarLoop]: 555 mSDtfsCounter, 9 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1095 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 18:01:30,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1095 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 18:01:30,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2022-10-16 18:01:30,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 460. [2022-10-16 18:01:30,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 437 states have (on average 1.3135011441647597) internal successors, (574), 447 states have internal predecessors, (574), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2022-10-16 18:01:30,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 601 transitions. [2022-10-16 18:01:30,830 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 601 transitions. Word has length 58 [2022-10-16 18:01:30,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 18:01:30,831 INFO L495 AbstractCegarLoop]: Abstraction has 460 states and 601 transitions. [2022-10-16 18:01:30,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:01:30,831 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 601 transitions. [2022-10-16 18:01:30,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-10-16 18:01:30,833 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 18:01:30,833 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] [2022-10-16 18:01:30,874 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 18:01:31,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 18:01:31,048 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 18:01:31,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 18:01:31,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1801628522, now seen corresponding path program 1 times [2022-10-16 18:01:31,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 18:01:31,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183550259] [2022-10-16 18:01:31,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:01:31,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 18:01:31,195 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 18:01:31,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [27055580] [2022-10-16 18:01:31,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:01:31,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 18:01:31,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 18:01:31,201 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 18:01:31,229 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 18:01:31,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 18:01:31,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 1556 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 18:01:31,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 18:01:31,953 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 18:01:31,953 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 18:01:31,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 18:01:31,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183550259] [2022-10-16 18:01:31,954 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 18:01:31,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [27055580] [2022-10-16 18:01:31,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [27055580] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 18:01:31,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 18:01:31,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 18:01:31,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435710523] [2022-10-16 18:01:31,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 18:01:31,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 18:01:31,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 18:01:31,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 18:01:31,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 18:01:31,961 INFO L87 Difference]: Start difference. First operand 460 states and 601 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:01:32,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 18:01:32,080 INFO L93 Difference]: Finished difference Result 986 states and 1296 transitions. [2022-10-16 18:01:32,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 18:01:32,081 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-10-16 18:01:32,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 18:01:32,085 INFO L225 Difference]: With dead ends: 986 [2022-10-16 18:01:32,086 INFO L226 Difference]: Without dead ends: 534 [2022-10-16 18:01:32,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 18:01:32,093 INFO L413 NwaCegarLoop]: 669 mSDtfsCounter, 514 mSDsluCounter, 819 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 1488 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 18:01:32,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [523 Valid, 1488 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 18:01:32,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2022-10-16 18:01:32,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 446. [2022-10-16 18:01:32,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 423 states have (on average 1.3073286052009456) internal successors, (553), 433 states have internal predecessors, (553), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2022-10-16 18:01:32,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 580 transitions. [2022-10-16 18:01:32,118 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 580 transitions. Word has length 58 [2022-10-16 18:01:32,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 18:01:32,119 INFO L495 AbstractCegarLoop]: Abstraction has 446 states and 580 transitions. [2022-10-16 18:01:32,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:01:32,119 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 580 transitions. [2022-10-16 18:01:32,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-10-16 18:01:32,124 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 18:01:32,124 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] [2022-10-16 18:01:32,154 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 18:01:32,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 18:01:32,339 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 18:01:32,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 18:01:32,340 INFO L85 PathProgramCache]: Analyzing trace with hash -469402596, now seen corresponding path program 1 times [2022-10-16 18:01:32,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 18:01:32,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051686937] [2022-10-16 18:01:32,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:01:32,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 18:01:32,456 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 18:01:32,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1788255171] [2022-10-16 18:01:32,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:01:32,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 18:01:32,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 18:01:32,458 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 18:01:32,461 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 18:01:33,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 18:01:33,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 1542 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 18:01:33,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 18:01:33,296 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 18:01:33,296 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 18:01:33,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 18:01:33,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051686937] [2022-10-16 18:01:33,297 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 18:01:33,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1788255171] [2022-10-16 18:01:33,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1788255171] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 18:01:33,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 18:01:33,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 18:01:33,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180268645] [2022-10-16 18:01:33,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 18:01:33,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 18:01:33,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 18:01:33,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 18:01:33,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 18:01:33,300 INFO L87 Difference]: Start difference. First operand 446 states and 580 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:01:33,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 18:01:33,406 INFO L93 Difference]: Finished difference Result 1112 states and 1448 transitions. [2022-10-16 18:01:33,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 18:01:33,407 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-10-16 18:01:33,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 18:01:33,412 INFO L225 Difference]: With dead ends: 1112 [2022-10-16 18:01:33,412 INFO L226 Difference]: Without dead ends: 674 [2022-10-16 18:01:33,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 18:01:33,414 INFO L413 NwaCegarLoop]: 647 mSDtfsCounter, 250 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 1188 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 18:01:33,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 1188 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 18:01:33,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2022-10-16 18:01:33,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 670. [2022-10-16 18:01:33,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 642 states have (on average 1.2975077881619939) internal successors, (833), 652 states have internal predecessors, (833), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2022-10-16 18:01:33,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 870 transitions. [2022-10-16 18:01:33,445 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 870 transitions. Word has length 58 [2022-10-16 18:01:33,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 18:01:33,446 INFO L495 AbstractCegarLoop]: Abstraction has 670 states and 870 transitions. [2022-10-16 18:01:33,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:01:33,446 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 870 transitions. [2022-10-16 18:01:33,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-10-16 18:01:33,447 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 18:01:33,448 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] [2022-10-16 18:01:33,493 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 18:01:33,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 18:01:33,663 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 18:01:33,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 18:01:33,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1478153086, now seen corresponding path program 1 times [2022-10-16 18:01:33,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 18:01:33,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067959434] [2022-10-16 18:01:33,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:01:33,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 18:01:33,724 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 18:01:33,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [652330322] [2022-10-16 18:01:33,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:01:33,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 18:01:33,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 18:01:33,726 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 18:01:33,743 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 18:01:34,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 18:01:34,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 679 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-16 18:01:34,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 18:01:34,304 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 18:01:34,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 18:01:34,346 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-16 18:01:34,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 18:01:34,373 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-16 18:01:34,389 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 18:01:34,389 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 18:01:34,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 18:01:34,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067959434] [2022-10-16 18:01:34,390 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 18:01:34,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [652330322] [2022-10-16 18:01:34,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [652330322] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 18:01:34,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 18:01:34,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 18:01:34,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56620244] [2022-10-16 18:01:34,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 18:01:34,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 18:01:34,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 18:01:34,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 18:01:34,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 18:01:34,393 INFO L87 Difference]: Start difference. First operand 670 states and 870 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 18:01:35,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 18:01:35,615 INFO L93 Difference]: Finished difference Result 1248 states and 1620 transitions. [2022-10-16 18:01:35,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 18:01:35,616 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 73 [2022-10-16 18:01:35,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 18:01:35,620 INFO L225 Difference]: With dead ends: 1248 [2022-10-16 18:01:35,621 INFO L226 Difference]: Without dead ends: 670 [2022-10-16 18:01:35,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-16 18:01:35,623 INFO L413 NwaCegarLoop]: 544 mSDtfsCounter, 97 mSDsluCounter, 1345 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 1889 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-10-16 18:01:35,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 1889 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-10-16 18:01:35,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2022-10-16 18:01:35,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 670. [2022-10-16 18:01:35,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 642 states have (on average 1.2959501557632398) internal successors, (832), 652 states have internal predecessors, (832), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2022-10-16 18:01:35,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 869 transitions. [2022-10-16 18:01:35,653 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 869 transitions. Word has length 73 [2022-10-16 18:01:35,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 18:01:35,654 INFO L495 AbstractCegarLoop]: Abstraction has 670 states and 869 transitions. [2022-10-16 18:01:35,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 18:01:35,654 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 869 transitions. [2022-10-16 18:01:35,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-10-16 18:01:35,656 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 18:01:35,656 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 18:01:35,704 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 18:01:35,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 18:01:35,871 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 18:01:35,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 18:01:35,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1256857459, now seen corresponding path program 1 times [2022-10-16 18:01:35,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 18:01:35,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888372870] [2022-10-16 18:01:35,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:01:35,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 18:01:36,011 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 18:01:36,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1248759966] [2022-10-16 18:01:36,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:01:36,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 18:01:36,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 18:01:36,013 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 18:01:36,017 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 18:01:37,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 18:01:37,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 2122 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 18:01:37,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 18:01:37,072 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 18:01:37,072 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 18:01:37,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 18:01:37,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888372870] [2022-10-16 18:01:37,073 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 18:01:37,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1248759966] [2022-10-16 18:01:37,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1248759966] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 18:01:37,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 18:01:37,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 18:01:37,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039681047] [2022-10-16 18:01:37,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 18:01:37,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 18:01:37,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 18:01:37,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 18:01:37,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 18:01:37,076 INFO L87 Difference]: Start difference. First operand 670 states and 869 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 18:01:37,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 18:01:37,177 INFO L93 Difference]: Finished difference Result 1362 states and 1777 transitions. [2022-10-16 18:01:37,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 18:01:37,178 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 120 [2022-10-16 18:01:37,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 18:01:37,184 INFO L225 Difference]: With dead ends: 1362 [2022-10-16 18:01:37,184 INFO L226 Difference]: Without dead ends: 712 [2022-10-16 18:01:37,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 18:01:37,187 INFO L413 NwaCegarLoop]: 548 mSDtfsCounter, 9 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1081 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 18:01:37,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1081 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 18:01:37,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2022-10-16 18:01:37,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 710. [2022-10-16 18:01:37,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 710 states, 682 states have (on average 1.278592375366569) internal successors, (872), 692 states have internal predecessors, (872), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2022-10-16 18:01:37,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 909 transitions. [2022-10-16 18:01:37,225 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 909 transitions. Word has length 120 [2022-10-16 18:01:37,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 18:01:37,225 INFO L495 AbstractCegarLoop]: Abstraction has 710 states and 909 transitions. [2022-10-16 18:01:37,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 18:01:37,226 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 909 transitions. [2022-10-16 18:01:37,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-10-16 18:01:37,234 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 18:01:37,234 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 18:01:37,276 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 18:01:37,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 18:01:37,449 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 18:01:37,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 18:01:37,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1195779439, now seen corresponding path program 1 times [2022-10-16 18:01:37,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 18:01:37,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943545721] [2022-10-16 18:01:37,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:01:37,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 18:01:37,603 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 18:01:37,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [444267597] [2022-10-16 18:01:37,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:01:37,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 18:01:37,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 18:01:37,605 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 18:01:37,612 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 18:01:38,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 18:01:38,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 2126 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 18:01:38,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 18:01:38,636 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 18:01:38,636 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 18:01:38,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 18:01:38,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943545721] [2022-10-16 18:01:38,637 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 18:01:38,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [444267597] [2022-10-16 18:01:38,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [444267597] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 18:01:38,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 18:01:38,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 18:01:38,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661597043] [2022-10-16 18:01:38,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 18:01:38,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 18:01:38,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 18:01:38,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 18:01:38,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 18:01:38,640 INFO L87 Difference]: Start difference. First operand 710 states and 909 transitions. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 18:01:38,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 18:01:38,741 INFO L93 Difference]: Finished difference Result 1356 states and 1742 transitions. [2022-10-16 18:01:38,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 18:01:38,742 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 120 [2022-10-16 18:01:38,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 18:01:38,746 INFO L225 Difference]: With dead ends: 1356 [2022-10-16 18:01:38,746 INFO L226 Difference]: Without dead ends: 684 [2022-10-16 18:01:38,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 18:01:38,748 INFO L413 NwaCegarLoop]: 551 mSDtfsCounter, 507 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 1141 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 18:01:38,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 1141 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 18:01:38,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2022-10-16 18:01:38,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 682. [2022-10-16 18:01:38,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682 states, 654 states have (on average 1.269113149847095) internal successors, (830), 664 states have internal predecessors, (830), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2022-10-16 18:01:38,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 867 transitions. [2022-10-16 18:01:38,777 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 867 transitions. Word has length 120 [2022-10-16 18:01:38,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 18:01:38,777 INFO L495 AbstractCegarLoop]: Abstraction has 682 states and 867 transitions. [2022-10-16 18:01:38,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 18:01:38,778 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 867 transitions. [2022-10-16 18:01:38,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-10-16 18:01:38,780 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 18:01:38,780 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 18:01:38,823 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 18:01:38,993 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,SelfDestructingSolverStorable8 [2022-10-16 18:01:38,994 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 18:01:38,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 18:01:38,995 INFO L85 PathProgramCache]: Analyzing trace with hash -686121021, now seen corresponding path program 1 times [2022-10-16 18:01:38,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 18:01:38,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999726236] [2022-10-16 18:01:38,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:01:38,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 18:01:39,179 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 18:01:39,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [375157442] [2022-10-16 18:01:39,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:01:39,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 18:01:39,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 18:01:39,181 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 18:01:39,202 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 18:01:40,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 18:01:40,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 2112 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 18:01:40,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 18:01:40,372 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 18:01:40,372 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 18:01:40,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 18:01:40,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999726236] [2022-10-16 18:01:40,372 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 18:01:40,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [375157442] [2022-10-16 18:01:40,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [375157442] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 18:01:40,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 18:01:40,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 18:01:40,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116103469] [2022-10-16 18:01:40,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 18:01:40,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 18:01:40,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 18:01:40,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 18:01:40,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 18:01:40,375 INFO L87 Difference]: Start difference. First operand 682 states and 867 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 18:01:40,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 18:01:40,485 INFO L93 Difference]: Finished difference Result 1543 states and 1986 transitions. [2022-10-16 18:01:40,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 18:01:40,486 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 120 [2022-10-16 18:01:40,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 18:01:40,492 INFO L225 Difference]: With dead ends: 1543 [2022-10-16 18:01:40,492 INFO L226 Difference]: Without dead ends: 921 [2022-10-16 18:01:40,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 18:01:40,495 INFO L413 NwaCegarLoop]: 562 mSDtfsCounter, 220 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 1095 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 18:01:40,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 1095 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 18:01:40,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2022-10-16 18:01:40,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 819. [2022-10-16 18:01:40,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 819 states, 788 states have (on average 1.2766497461928934) internal successors, (1006), 798 states have internal predecessors, (1006), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (21), 18 states have call predecessors, (21), 21 states have call successors, (21) [2022-10-16 18:01:40,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 819 states to 819 states and 1049 transitions. [2022-10-16 18:01:40,532 INFO L78 Accepts]: Start accepts. Automaton has 819 states and 1049 transitions. Word has length 120 [2022-10-16 18:01:40,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 18:01:40,533 INFO L495 AbstractCegarLoop]: Abstraction has 819 states and 1049 transitions. [2022-10-16 18:01:40,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 18:01:40,533 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states and 1049 transitions. [2022-10-16 18:01:40,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-10-16 18:01:40,535 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 18:01:40,535 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 18:01:40,564 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 18:01:40,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-10-16 18:01:40,742 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 18:01:40,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 18:01:40,743 INFO L85 PathProgramCache]: Analyzing trace with hash 482212548, now seen corresponding path program 1 times [2022-10-16 18:01:40,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 18:01:40,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303783976] [2022-10-16 18:01:40,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:01:40,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 18:01:40,822 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 18:01:40,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [759283576] [2022-10-16 18:01:40,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:01:40,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 18:01:40,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 18:01:40,824 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 18:01:40,856 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 18:01:57,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 18:01:57,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 1249 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 18:01:58,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 18:01:58,023 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 18:01:58,024 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 18:01:58,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 18:01:58,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303783976] [2022-10-16 18:01:58,024 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 18:01:58,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [759283576] [2022-10-16 18:01:58,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [759283576] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 18:01:58,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 18:01:58,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 18:01:58,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829879126] [2022-10-16 18:01:58,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 18:01:58,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 18:01:58,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 18:01:58,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 18:01:58,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 18:01:58,027 INFO L87 Difference]: Start difference. First operand 819 states and 1049 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), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-16 18:01:58,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 18:01:58,129 INFO L93 Difference]: Finished difference Result 1587 states and 2050 transitions. [2022-10-16 18:01:58,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 18:01:58,130 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), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 135 [2022-10-16 18:01:58,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 18:01:58,136 INFO L225 Difference]: With dead ends: 1587 [2022-10-16 18:01:58,137 INFO L226 Difference]: Without dead ends: 822 [2022-10-16 18:01:58,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 18:01:58,141 INFO L413 NwaCegarLoop]: 557 mSDtfsCounter, 2 mSDsluCounter, 1107 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1664 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 18:01:58,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1664 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 18:01:58,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2022-10-16 18:01:58,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 822. [2022-10-16 18:01:58,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 822 states, 790 states have (on average 1.2772151898734176) internal successors, (1009), 801 states have internal predecessors, (1009), 22 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (24), 18 states have call predecessors, (24), 21 states have call successors, (24) [2022-10-16 18:01:58,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 822 states to 822 states and 1055 transitions. [2022-10-16 18:01:58,182 INFO L78 Accepts]: Start accepts. Automaton has 822 states and 1055 transitions. Word has length 135 [2022-10-16 18:01:58,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 18:01:58,182 INFO L495 AbstractCegarLoop]: Abstraction has 822 states and 1055 transitions. [2022-10-16 18:01:58,182 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), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-16 18:01:58,182 INFO L276 IsEmpty]: Start isEmpty. Operand 822 states and 1055 transitions. [2022-10-16 18:01:58,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-10-16 18:01:58,184 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 18:01:58,184 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 18:01:58,235 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 18:01:58,399 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,SelfDestructingSolverStorable10 [2022-10-16 18:01:58,400 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 18:01:58,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 18:01:58,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1457592520, now seen corresponding path program 1 times [2022-10-16 18:01:58,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 18:01:58,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848769788] [2022-10-16 18:01:58,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:01:58,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 18:01:58,476 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 18:01:58,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1039894545] [2022-10-16 18:01:58,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:01:58,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 18:01:58,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 18:01:58,478 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 18:01:58,490 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 18:03:16,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 18:03:16,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 1309 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 18:03:16,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 18:03:16,479 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 14 proven. 12 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-10-16 18:03:16,480 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 18:03:16,590 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-10-16 18:03:16,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 18:03:16,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848769788] [2022-10-16 18:03:16,590 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 18:03:16,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1039894545] [2022-10-16 18:03:16,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1039894545] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 18:03:16,591 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 18:03:16,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-10-16 18:03:16,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008803926] [2022-10-16 18:03:16,591 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 18:03:16,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 18:03:16,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 18:03:16,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 18:03:16,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 18:03:16,593 INFO L87 Difference]: Start difference. First operand 822 states and 1055 transitions. Second operand has 8 states, 8 states have (on average 16.0) internal successors, (128), 8 states have internal predecessors, (128), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-10-16 18:03:16,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 18:03:16,786 INFO L93 Difference]: Finished difference Result 1601 states and 2080 transitions. [2022-10-16 18:03:16,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 18:03:16,787 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.0) internal successors, (128), 8 states have internal predecessors, (128), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 139 [2022-10-16 18:03:16,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 18:03:16,792 INFO L225 Difference]: With dead ends: 1601 [2022-10-16 18:03:16,793 INFO L226 Difference]: Without dead ends: 833 [2022-10-16 18:03:16,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2022-10-16 18:03:16,796 INFO L413 NwaCegarLoop]: 556 mSDtfsCounter, 19 mSDsluCounter, 1656 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 2212 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 18:03:16,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 2212 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 18:03:16,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 833 states. [2022-10-16 18:03:16,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 833 to 831. [2022-10-16 18:03:16,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 831 states, 798 states have (on average 1.281954887218045) internal successors, (1023), 809 states have internal predecessors, (1023), 22 states have call successors, (22), 4 states have call predecessors, (22), 5 states have return successors, (27), 18 states have call predecessors, (27), 21 states have call successors, (27) [2022-10-16 18:03:16,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 1072 transitions. [2022-10-16 18:03:16,839 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 1072 transitions. Word has length 139 [2022-10-16 18:03:16,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 18:03:16,840 INFO L495 AbstractCegarLoop]: Abstraction has 831 states and 1072 transitions. [2022-10-16 18:03:16,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.0) internal successors, (128), 8 states have internal predecessors, (128), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-10-16 18:03:16,840 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 1072 transitions. [2022-10-16 18:03:16,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-10-16 18:03:16,842 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 18:03:16,842 INFO L195 NwaCegarLoop]: trace histogram [12, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 18:03:16,933 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-10-16 18:03:17,055 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,SelfDestructingSolverStorable11 [2022-10-16 18:03:17,056 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 18:03:17,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 18:03:17,057 INFO L85 PathProgramCache]: Analyzing trace with hash 509224900, now seen corresponding path program 2 times [2022-10-16 18:03:17,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 18:03:17,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606075773] [2022-10-16 18:03:17,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:03:17,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 18:03:17,201 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 18:03:17,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1092409163] [2022-10-16 18:03:17,202 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 18:03:17,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 18:03:17,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 18:03:17,204 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 18:03:17,228 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-16 18:05:36,420 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 18:05:36,420 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 18:05:36,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 1429 conjuncts, 27 conjunts are in the unsatisfiable core [2022-10-16 18:05:36,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 18:05:36,612 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 48 proven. 3 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-10-16 18:05:36,612 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 18:05:36,835 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-10-16 18:05:36,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 18:05:36,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606075773] [2022-10-16 18:05:36,835 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 18:05:36,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1092409163] [2022-10-16 18:05:36,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1092409163] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 18:05:36,836 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 18:05:36,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 11 [2022-10-16 18:05:36,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428389962] [2022-10-16 18:05:36,837 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 18:05:36,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-16 18:05:36,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 18:05:36,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-16 18:05:36,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-10-16 18:05:36,838 INFO L87 Difference]: Start difference. First operand 831 states and 1072 transitions. Second operand has 11 states, 11 states have (on average 12.272727272727273) internal successors, (135), 11 states have internal predecessors, (135), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 18:05:37,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 18:05:37,358 INFO L93 Difference]: Finished difference Result 1654 states and 2149 transitions. [2022-10-16 18:05:37,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 18:05:37,358 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.272727272727273) internal successors, (135), 11 states have internal predecessors, (135), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 147 [2022-10-16 18:05:37,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 18:05:37,364 INFO L225 Difference]: With dead ends: 1654 [2022-10-16 18:05:37,364 INFO L226 Difference]: Without dead ends: 831 [2022-10-16 18:05:37,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=104, Invalid=202, Unknown=0, NotChecked=0, Total=306 [2022-10-16 18:05:37,367 INFO L413 NwaCegarLoop]: 550 mSDtfsCounter, 528 mSDsluCounter, 2223 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 539 SdHoareTripleChecker+Valid, 2773 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 18:05:37,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [539 Valid, 2773 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 18:05:37,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 831 states. [2022-10-16 18:05:37,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 831 to 829. [2022-10-16 18:05:37,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 829 states, 796 states have (on average 1.2801507537688441) internal successors, (1019), 807 states have internal predecessors, (1019), 22 states have call successors, (22), 4 states have call predecessors, (22), 5 states have return successors, (24), 18 states have call predecessors, (24), 21 states have call successors, (24) [2022-10-16 18:05:37,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1065 transitions. [2022-10-16 18:05:37,415 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1065 transitions. Word has length 147 [2022-10-16 18:05:37,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 18:05:37,416 INFO L495 AbstractCegarLoop]: Abstraction has 829 states and 1065 transitions. [2022-10-16 18:05:37,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.272727272727273) internal successors, (135), 11 states have internal predecessors, (135), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 18:05:37,416 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1065 transitions. [2022-10-16 18:05:37,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-10-16 18:05:37,418 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 18:05:37,419 INFO L195 NwaCegarLoop]: trace histogram [20, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 18:05:37,542 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-10-16 18:05:37,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-10-16 18:05:37,632 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 18:05:37,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 18:05:37,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1429459004, now seen corresponding path program 3 times [2022-10-16 18:05:37,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 18:05:37,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102099085] [2022-10-16 18:05:37,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:05:37,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 18:05:37,744 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 18:05:37,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1432586985] [2022-10-16 18:05:37,745 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 18:05:37,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 18:05:37,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 18:05:37,747 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 18:05:37,772 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process