./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test10-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version ff03de63 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test10-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 85fe539c4a9811cd5d49f239f4680cc0b3752a2958e9f287c34e302b923af4f9 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 21:02:16,747 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 21:02:16,748 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 21:02:16,804 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 21:02:16,805 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 21:02:16,809 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 21:02:16,813 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 21:02:16,815 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 21:02:16,816 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 21:02:16,821 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 21:02:16,821 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 21:02:16,822 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 21:02:16,823 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 21:02:16,824 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 21:02:16,825 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 21:02:16,827 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 21:02:16,829 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 21:02:16,830 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 21:02:16,831 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 21:02:16,833 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 21:02:16,836 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 21:02:16,837 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 21:02:16,838 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 21:02:16,839 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 21:02:16,841 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 21:02:16,842 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 21:02:16,842 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 21:02:16,843 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 21:02:16,844 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 21:02:16,844 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 21:02:16,845 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 21:02:16,845 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 21:02:16,846 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 21:02:16,847 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 21:02:16,848 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 21:02:16,848 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 21:02:16,849 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 21:02:16,849 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 21:02:16,849 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 21:02:16,850 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 21:02:16,850 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 21:02:16,852 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-12-21 21:02:16,880 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 21:02:16,880 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 21:02:16,880 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 21:02:16,881 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 21:02:16,881 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 21:02:16,881 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 21:02:16,882 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 21:02:16,882 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 21:02:16,882 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 21:02:16,882 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 21:02:16,882 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 21:02:16,883 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-21 21:02:16,883 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 21:02:16,883 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 21:02:16,883 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 21:02:16,883 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 21:02:16,883 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 21:02:16,883 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 21:02:16,884 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-12-21 21:02:16,884 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 21:02:16,884 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 21:02:16,884 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 21:02:16,884 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 21:02:16,884 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 21:02:16,885 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 21:02:16,885 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 21:02:16,885 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 21:02:16,885 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 21:02:16,886 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 21:02:16,886 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 21:02:16,886 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 21:02:16,886 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 21:02:16,886 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 21:02:16,886 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 21:02:16,887 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 85fe539c4a9811cd5d49f239f4680cc0b3752a2958e9f287c34e302b923af4f9 [2021-12-21 21:02:17,045 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 21:02:17,058 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 21:02:17,059 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 21:02:17,060 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 21:02:17,061 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 21:02:17,062 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test10-1.i [2021-12-21 21:02:17,102 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15c6949af/b0c25a9edfb24c5eaf9075986e0a327d/FLAG88ec5459b [2021-12-21 21:02:17,563 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 21:02:17,563 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test10-1.i [2021-12-21 21:02:17,588 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15c6949af/b0c25a9edfb24c5eaf9075986e0a327d/FLAG88ec5459b [2021-12-21 21:02:17,606 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15c6949af/b0c25a9edfb24c5eaf9075986e0a327d [2021-12-21 21:02:17,608 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 21:02:17,609 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 21:02:17,610 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 21:02:17,611 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 21:02:17,613 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 21:02:17,613 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 09:02:17" (1/1) ... [2021-12-21 21:02:17,614 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c194163 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:02:17, skipping insertion in model container [2021-12-21 21:02:17,614 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 09:02:17" (1/1) ... [2021-12-21 21:02:17,619 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 21:02:17,660 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 21:02:17,923 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_SFH_test10-1.i[33022,33035] [2021-12-21 21:02:18,110 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 21:02:18,117 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 21:02:18,146 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_SFH_test10-1.i[33022,33035] [2021-12-21 21:02:18,216 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 21:02:18,247 INFO L208 MainTranslator]: Completed translation [2021-12-21 21:02:18,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:02:18 WrapperNode [2021-12-21 21:02:18,248 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 21:02:18,249 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 21:02:18,249 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 21:02:18,249 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 21:02:18,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:02:18" (1/1) ... [2021-12-21 21:02:18,309 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:02:18" (1/1) ... [2021-12-21 21:02:18,381 INFO L137 Inliner]: procedures = 177, calls = 524, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2179 [2021-12-21 21:02:18,382 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 21:02:18,383 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 21:02:18,383 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 21:02:18,383 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 21:02:18,389 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:02:18" (1/1) ... [2021-12-21 21:02:18,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:02:18" (1/1) ... [2021-12-21 21:02:18,430 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:02:18" (1/1) ... [2021-12-21 21:02:18,430 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:02:18" (1/1) ... [2021-12-21 21:02:18,485 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:02:18" (1/1) ... [2021-12-21 21:02:18,497 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:02:18" (1/1) ... [2021-12-21 21:02:18,512 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:02:18" (1/1) ... [2021-12-21 21:02:18,528 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 21:02:18,533 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 21:02:18,534 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 21:02:18,534 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 21:02:18,535 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:02:18" (1/1) ... [2021-12-21 21:02:18,540 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 21:02:18,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:02:18,560 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) [2021-12-21 21:02:18,578 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 [2021-12-21 21:02:18,590 INFO L130 BoogieDeclarations]: Found specification of procedure test_int_int [2021-12-21 21:02:18,590 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int_int [2021-12-21 21:02:18,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 21:02:18,590 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-21 21:02:18,590 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-21 21:02:18,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 21:02:18,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-21 21:02:18,591 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-21 21:02:18,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-21 21:02:18,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 21:02:18,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-21 21:02:18,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 21:02:18,592 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-21 21:02:18,592 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-21 21:02:18,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 21:02:18,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 21:02:18,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 21:02:18,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 21:02:18,815 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 21:02:18,816 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 21:02:19,903 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 21:02:19,916 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 21:02:19,917 INFO L299 CfgBuilder]: Removed 151 assume(true) statements. [2021-12-21 21:02:19,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 09:02:19 BoogieIcfgContainer [2021-12-21 21:02:19,920 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 21:02:19,922 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 21:02:19,922 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 21:02:19,924 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 21:02:19,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 09:02:17" (1/3) ... [2021-12-21 21:02:19,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@523a7ec3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 09:02:19, skipping insertion in model container [2021-12-21 21:02:19,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:02:18" (2/3) ... [2021-12-21 21:02:19,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@523a7ec3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 09:02:19, skipping insertion in model container [2021-12-21 21:02:19,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 09:02:19" (3/3) ... [2021-12-21 21:02:19,928 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test10-1.i [2021-12-21 21:02:19,932 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 21:02:19,932 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-12-21 21:02:19,963 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 21:02:19,969 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-21 21:02:19,969 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-12-21 21:02:19,987 INFO L276 IsEmpty]: Start isEmpty. Operand has 438 states, 414 states have (on average 1.714975845410628) internal successors, (710), 424 states have internal predecessors, (710), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2021-12-21 21:02:19,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-21 21:02:19,990 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 21:02:19,990 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-21 21:02:19,991 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-21 21:02:19,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 21:02:19,994 INFO L85 PathProgramCache]: Analyzing trace with hash -165268689, now seen corresponding path program 1 times [2021-12-21 21:02:20,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 21:02:20,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089955029] [2021-12-21 21:02:20,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 21:02:20,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 21:02:20,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 21:02:20,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 21:02:20,140 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 21:02:20,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089955029] [2021-12-21 21:02:20,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089955029] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 21:02:20,141 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 21:02:20,141 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-21 21:02:20,142 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361444362] [2021-12-21 21:02:20,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 21:02:20,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-21 21:02:20,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 21:02:20,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-21 21:02:20,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-21 21:02:20,170 INFO L87 Difference]: Start difference. First operand has 438 states, 414 states have (on average 1.714975845410628) internal successors, (710), 424 states have internal predecessors, (710), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 21:02:20,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 21:02:20,223 INFO L93 Difference]: Finished difference Result 874 states and 1482 transitions. [2021-12-21 21:02:20,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-21 21:02:20,225 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-12-21 21:02:20,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 21:02:20,233 INFO L225 Difference]: With dead ends: 874 [2021-12-21 21:02:20,234 INFO L226 Difference]: Without dead ends: 434 [2021-12-21 21:02:20,238 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-21 21:02:20,240 INFO L933 BasicCegarLoop]: 579 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, 579 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 [2021-12-21 21:02:20,241 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 21:02:20,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2021-12-21 21:02:20,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 434. [2021-12-21 21:02:20,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 411 states have (on average 1.3333333333333333) internal successors, (548), 421 states have internal predecessors, (548), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2021-12-21 21:02:20,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 575 transitions. [2021-12-21 21:02:20,289 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 575 transitions. Word has length 7 [2021-12-21 21:02:20,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 21:02:20,289 INFO L470 AbstractCegarLoop]: Abstraction has 434 states and 575 transitions. [2021-12-21 21:02:20,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 21:02:20,289 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 575 transitions. [2021-12-21 21:02:20,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-21 21:02:20,290 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 21:02:20,290 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-21 21:02:20,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 21:02:20,290 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-21 21:02:20,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 21:02:20,291 INFO L85 PathProgramCache]: Analyzing trace with hash -165266767, now seen corresponding path program 1 times [2021-12-21 21:02:20,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 21:02:20,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563836193] [2021-12-21 21:02:20,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 21:02:20,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 21:02:20,334 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-21 21:02:20,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [226402991] [2021-12-21 21:02:20,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 21:02:20,336 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 21:02:20,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:02:20,337 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) [2021-12-21 21:02:20,354 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-21 21:02:20,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 21:02:20,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-21 21:02:20,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 21:02:20,546 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-21 21:02:20,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 21:02:20,629 INFO L387 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 [2021-12-21 21:02:20,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 21:02:20,636 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 21:02:20,636 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 21:02:20,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563836193] [2021-12-21 21:02:20,640 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-21 21:02:20,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [226402991] [2021-12-21 21:02:20,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [226402991] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 21:02:20,641 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 21:02:20,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 21:02:20,643 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896355674] [2021-12-21 21:02:20,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 21:02:20,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 21:02:20,644 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 21:02:20,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 21:02:20,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 21:02:20,646 INFO L87 Difference]: Start difference. First operand 434 states and 575 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 21:02:21,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 21:02:21,666 INFO L93 Difference]: Finished difference Result 524 states and 695 transitions. [2021-12-21 21:02:21,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 21:02:21,668 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-12-21 21:02:21,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 21:02:21,670 INFO L225 Difference]: With dead ends: 524 [2021-12-21 21:02:21,670 INFO L226 Difference]: Without dead ends: 522 [2021-12-21 21:02:21,671 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-21 21:02:21,672 INFO L933 BasicCegarLoop]: 532 mSDtfsCounter, 198 mSDsluCounter, 1346 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 1878 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-21 21:02:21,672 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [198 Valid, 1878 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-21 21:02:21,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2021-12-21 21:02:21,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 440. [2021-12-21 21:02:21,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 417 states have (on average 1.330935251798561) internal successors, (555), 427 states have internal predecessors, (555), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2021-12-21 21:02:21,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 582 transitions. [2021-12-21 21:02:21,698 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 582 transitions. Word has length 7 [2021-12-21 21:02:21,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 21:02:21,699 INFO L470 AbstractCegarLoop]: Abstraction has 440 states and 582 transitions. [2021-12-21 21:02:21,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 21:02:21,699 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 582 transitions. [2021-12-21 21:02:21,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-12-21 21:02:21,701 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 21:02:21,701 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 21:02:21,719 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-21 21:02:21,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 21:02:21,912 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-21 21:02:21,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 21:02:21,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1977167222, now seen corresponding path program 1 times [2021-12-21 21:02:21,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 21:02:21,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142683663] [2021-12-21 21:02:21,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 21:02:21,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 21:02:21,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 21:02:21,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 21:02:21,984 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 21:02:21,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142683663] [2021-12-21 21:02:21,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142683663] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 21:02:21,985 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 21:02:21,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 21:02:21,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406552485] [2021-12-21 21:02:21,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 21:02:21,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 21:02:21,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 21:02:21,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 21:02:21,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 21:02:21,986 INFO L87 Difference]: Start difference. First operand 440 states and 582 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 21:02:22,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 21:02:22,354 INFO L93 Difference]: Finished difference Result 688 states and 915 transitions. [2021-12-21 21:02:22,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-21 21:02:22,355 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-12-21 21:02:22,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 21:02:22,357 INFO L225 Difference]: With dead ends: 688 [2021-12-21 21:02:22,357 INFO L226 Difference]: Without dead ends: 440 [2021-12-21 21:02:22,357 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 21:02:22,358 INFO L933 BasicCegarLoop]: 571 mSDtfsCounter, 3 mSDsluCounter, 986 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1557 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-21 21:02:22,358 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 1557 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-21 21:02:22,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2021-12-21 21:02:22,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 440. [2021-12-21 21:02:22,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 417 states have (on average 1.328537170263789) internal successors, (554), 427 states have internal predecessors, (554), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2021-12-21 21:02:22,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 581 transitions. [2021-12-21 21:02:22,372 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 581 transitions. Word has length 44 [2021-12-21 21:02:22,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 21:02:22,372 INFO L470 AbstractCegarLoop]: Abstraction has 440 states and 581 transitions. [2021-12-21 21:02:22,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 21:02:22,372 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 581 transitions. [2021-12-21 21:02:22,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-12-21 21:02:22,379 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 21:02:22,379 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 21:02:22,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-21 21:02:22,380 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-21 21:02:22,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 21:02:22,381 INFO L85 PathProgramCache]: Analyzing trace with hash 772269224, now seen corresponding path program 1 times [2021-12-21 21:02:22,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 21:02:22,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177045050] [2021-12-21 21:02:22,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 21:02:22,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 21:02:22,498 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-21 21:02:22,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [793520818] [2021-12-21 21:02:22,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 21:02:22,507 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 21:02:22,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:02:22,509 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) [2021-12-21 21:02:22,510 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-21 21:02:22,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 21:02:22,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 1548 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-21 21:02:22,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 21:02:23,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 21:02:23,041 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 21:02:23,042 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 21:02:23,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177045050] [2021-12-21 21:02:23,042 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-21 21:02:23,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [793520818] [2021-12-21 21:02:23,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [793520818] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 21:02:23,042 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 21:02:23,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 21:02:23,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366376483] [2021-12-21 21:02:23,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 21:02:23,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 21:02:23,043 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 21:02:23,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 21:02:23,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 21:02:23,043 INFO L87 Difference]: Start difference. First operand 440 states and 581 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 21:02:23,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 21:02:23,091 INFO L93 Difference]: Finished difference Result 893 states and 1185 transitions. [2021-12-21 21:02:23,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 21:02:23,091 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-12-21 21:02:23,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 21:02:23,093 INFO L225 Difference]: With dead ends: 893 [2021-12-21 21:02:23,093 INFO L226 Difference]: Without dead ends: 461 [2021-12-21 21:02:23,094 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 21:02:23,095 INFO L933 BasicCegarLoop]: 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, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 21:02:23,095 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 1095 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 21:02:23,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2021-12-21 21:02:23,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 460. [2021-12-21 21:02:23,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 437 states have (on average 1.3135011441647597) internal successors, (574), 447 states have internal predecessors, (574), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2021-12-21 21:02:23,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 601 transitions. [2021-12-21 21:02:23,104 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 601 transitions. Word has length 58 [2021-12-21 21:02:23,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 21:02:23,105 INFO L470 AbstractCegarLoop]: Abstraction has 460 states and 601 transitions. [2021-12-21 21:02:23,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 21:02:23,105 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 601 transitions. [2021-12-21 21:02:23,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-12-21 21:02:23,106 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 21:02:23,106 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 21:02:23,126 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-21 21:02:23,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2021-12-21 21:02:23,326 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-21 21:02:23,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 21:02:23,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1801628522, now seen corresponding path program 1 times [2021-12-21 21:02:23,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 21:02:23,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458931887] [2021-12-21 21:02:23,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 21:02:23,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 21:02:23,406 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-21 21:02:23,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1188712801] [2021-12-21 21:02:23,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 21:02:23,406 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 21:02:23,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:02:23,409 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) [2021-12-21 21:02:23,410 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-21 21:02:23,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 21:02:23,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 1550 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-21 21:02:23,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 21:02:24,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 21:02:24,002 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 21:02:24,002 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 21:02:24,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458931887] [2021-12-21 21:02:24,002 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-21 21:02:24,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1188712801] [2021-12-21 21:02:24,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1188712801] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 21:02:24,003 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 21:02:24,003 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 21:02:24,003 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975743007] [2021-12-21 21:02:24,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 21:02:24,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 21:02:24,004 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 21:02:24,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 21:02:24,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 21:02:24,004 INFO L87 Difference]: Start difference. First operand 460 states and 601 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 21:02:24,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 21:02:24,059 INFO L93 Difference]: Finished difference Result 986 states and 1296 transitions. [2021-12-21 21:02:24,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-21 21:02:24,059 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-12-21 21:02:24,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 21:02:24,061 INFO L225 Difference]: With dead ends: 986 [2021-12-21 21:02:24,061 INFO L226 Difference]: Without dead ends: 534 [2021-12-21 21:02:24,062 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 21:02:24,063 INFO L933 BasicCegarLoop]: 669 mSDtfsCounter, 514 mSDsluCounter, 819 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 21:02:24,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [523 Valid, 1488 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 21:02:24,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2021-12-21 21:02:24,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 446. [2021-12-21 21:02:24,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 423 states have (on average 1.3073286052009456) internal successors, (553), 433 states have internal predecessors, (553), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2021-12-21 21:02:24,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 580 transitions. [2021-12-21 21:02:24,073 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 580 transitions. Word has length 58 [2021-12-21 21:02:24,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 21:02:24,073 INFO L470 AbstractCegarLoop]: Abstraction has 446 states and 580 transitions. [2021-12-21 21:02:24,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 21:02:24,074 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 580 transitions. [2021-12-21 21:02:24,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-12-21 21:02:24,074 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 21:02:24,074 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 21:02:24,094 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-21 21:02:24,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 21:02:24,294 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-21 21:02:24,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 21:02:24,295 INFO L85 PathProgramCache]: Analyzing trace with hash -469402596, now seen corresponding path program 1 times [2021-12-21 21:02:24,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 21:02:24,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551772189] [2021-12-21 21:02:24,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 21:02:24,295 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 21:02:24,394 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-21 21:02:24,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2130126472] [2021-12-21 21:02:24,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 21:02:24,395 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 21:02:24,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:02:24,396 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) [2021-12-21 21:02:24,397 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-21 21:02:24,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 21:02:24,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 1536 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-21 21:02:24,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 21:02:25,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 21:02:25,122 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 21:02:25,122 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 21:02:25,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551772189] [2021-12-21 21:02:25,122 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-21 21:02:25,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2130126472] [2021-12-21 21:02:25,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2130126472] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 21:02:25,122 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 21:02:25,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 21:02:25,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099490152] [2021-12-21 21:02:25,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 21:02:25,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 21:02:25,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 21:02:25,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 21:02:25,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 21:02:25,124 INFO L87 Difference]: Start difference. First operand 446 states and 580 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 21:02:25,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 21:02:25,181 INFO L93 Difference]: Finished difference Result 1112 states and 1448 transitions. [2021-12-21 21:02:25,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 21:02:25,182 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-12-21 21:02:25,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 21:02:25,185 INFO L225 Difference]: With dead ends: 1112 [2021-12-21 21:02:25,186 INFO L226 Difference]: Without dead ends: 674 [2021-12-21 21:02:25,187 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 21:02:25,189 INFO L933 BasicCegarLoop]: 571 mSDtfsCounter, 250 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 1114 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 21:02:25,189 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [257 Valid, 1114 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 21:02:25,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2021-12-21 21:02:25,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 670. [2021-12-21 21:02:25,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 642 states have (on average 1.2975077881619939) internal successors, (833), 652 states have internal predecessors, (833), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2021-12-21 21:02:25,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 870 transitions. [2021-12-21 21:02:25,228 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 870 transitions. Word has length 58 [2021-12-21 21:02:25,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 21:02:25,228 INFO L470 AbstractCegarLoop]: Abstraction has 670 states and 870 transitions. [2021-12-21 21:02:25,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 21:02:25,229 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 870 transitions. [2021-12-21 21:02:25,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-12-21 21:02:25,231 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 21:02:25,231 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 21:02:25,262 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-21 21:02:25,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 21:02:25,439 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-21 21:02:25,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 21:02:25,440 INFO L85 PathProgramCache]: Analyzing trace with hash -168092098, now seen corresponding path program 1 times [2021-12-21 21:02:25,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 21:02:25,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444004916] [2021-12-21 21:02:25,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 21:02:25,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 21:02:25,471 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-21 21:02:25,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [375853096] [2021-12-21 21:02:25,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 21:02:25,472 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 21:02:25,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:02:25,473 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) [2021-12-21 21:02:25,474 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-21 21:02:25,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 21:02:25,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 673 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-21 21:02:25,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 21:02:25,910 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-21 21:02:25,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 21:02:25,945 INFO L387 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 [2021-12-21 21:02:25,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 21:02:25,973 INFO L387 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 [2021-12-21 21:02:26,058 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-21 21:02:26,058 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 21:02:26,059 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 21:02:26,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444004916] [2021-12-21 21:02:26,059 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-21 21:02:26,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [375853096] [2021-12-21 21:02:26,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [375853096] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 21:02:26,059 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 21:02:26,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 21:02:26,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157807707] [2021-12-21 21:02:26,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 21:02:26,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 21:02:26,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 21:02:26,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 21:02:26,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 21:02:26,061 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) [2021-12-21 21:02:26,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 21:02:26,738 INFO L93 Difference]: Finished difference Result 1248 states and 1620 transitions. [2021-12-21 21:02:26,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 21:02:26,739 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 [2021-12-21 21:02:26,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 21:02:26,741 INFO L225 Difference]: With dead ends: 1248 [2021-12-21 21:02:26,741 INFO L226 Difference]: Without dead ends: 670 [2021-12-21 21:02:26,741 INFO L932 BasicCegarLoop]: 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 [2021-12-21 21:02:26,742 INFO L933 BasicCegarLoop]: 544 mSDtfsCounter, 97 mSDsluCounter, 1361 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 1905 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-21 21:02:26,742 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 1905 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-21 21:02:26,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2021-12-21 21:02:26,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 670. [2021-12-21 21:02:26,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 642 states have (on average 1.2959501557632398) internal successors, (832), 652 states have internal predecessors, (832), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2021-12-21 21:02:26,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 869 transitions. [2021-12-21 21:02:26,755 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 869 transitions. Word has length 73 [2021-12-21 21:02:26,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 21:02:26,755 INFO L470 AbstractCegarLoop]: Abstraction has 670 states and 869 transitions. [2021-12-21 21:02:26,756 INFO L471 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) [2021-12-21 21:02:26,756 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 869 transitions. [2021-12-21 21:02:26,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-12-21 21:02:26,756 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 21:02:26,757 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 21:02:26,795 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-21 21:02:26,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 21:02:26,976 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-21 21:02:26,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 21:02:26,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1391864653, now seen corresponding path program 1 times [2021-12-21 21:02:26,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 21:02:26,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325506043] [2021-12-21 21:02:26,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 21:02:26,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 21:02:27,059 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-21 21:02:27,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1740613742] [2021-12-21 21:02:27,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 21:02:27,060 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 21:02:27,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:02:27,061 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) [2021-12-21 21:02:27,062 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-21 21:02:27,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 21:02:27,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 2110 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-21 21:02:27,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 21:02:27,917 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-21 21:02:27,918 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 21:02:27,918 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 21:02:27,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325506043] [2021-12-21 21:02:27,918 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-21 21:02:27,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1740613742] [2021-12-21 21:02:27,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1740613742] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 21:02:27,919 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 21:02:27,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 21:02:27,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843188858] [2021-12-21 21:02:27,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 21:02:27,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 21:02:27,920 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 21:02:27,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 21:02:27,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 21:02:27,920 INFO L87 Difference]: Start difference. First operand 670 states and 869 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-21 21:02:27,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 21:02:27,982 INFO L93 Difference]: Finished difference Result 1362 states and 1777 transitions. [2021-12-21 21:02:27,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 21:02:27,983 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 120 [2021-12-21 21:02:27,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 21:02:27,985 INFO L225 Difference]: With dead ends: 1362 [2021-12-21 21:02:27,985 INFO L226 Difference]: Without dead ends: 712 [2021-12-21 21:02:27,986 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 21:02:27,987 INFO L933 BasicCegarLoop]: 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, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 21:02:27,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 1081 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 21:02:27,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2021-12-21 21:02:27,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 710. [2021-12-21 21:02:27,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 710 states, 682 states have (on average 1.278592375366569) internal successors, (872), 692 states have internal predecessors, (872), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2021-12-21 21:02:28,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 909 transitions. [2021-12-21 21:02:28,001 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 909 transitions. Word has length 120 [2021-12-21 21:02:28,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 21:02:28,002 INFO L470 AbstractCegarLoop]: Abstraction has 710 states and 909 transitions. [2021-12-21 21:02:28,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-21 21:02:28,002 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 909 transitions. [2021-12-21 21:02:28,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-12-21 21:02:28,003 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 21:02:28,003 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 21:02:28,033 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-21 21:02:28,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 21:02:28,220 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-21 21:02:28,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 21:02:28,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1452942673, now seen corresponding path program 1 times [2021-12-21 21:02:28,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 21:02:28,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133618783] [2021-12-21 21:02:28,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 21:02:28,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 21:02:28,301 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-21 21:02:28,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1503543582] [2021-12-21 21:02:28,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 21:02:28,302 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 21:02:28,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:02:28,303 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) [2021-12-21 21:02:28,304 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-21 21:02:29,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 21:02:29,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 2114 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-21 21:02:29,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 21:02:29,254 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-21 21:02:29,255 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 21:02:29,255 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 21:02:29,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133618783] [2021-12-21 21:02:29,255 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-21 21:02:29,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1503543582] [2021-12-21 21:02:29,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1503543582] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 21:02:29,255 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 21:02:29,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 21:02:29,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747050200] [2021-12-21 21:02:29,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 21:02:29,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 21:02:29,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 21:02:29,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 21:02:29,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 21:02:29,256 INFO L87 Difference]: Start difference. First operand 710 states and 909 transitions. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-21 21:02:29,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 21:02:29,310 INFO L93 Difference]: Finished difference Result 1356 states and 1742 transitions. [2021-12-21 21:02:29,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-21 21:02:29,311 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 120 [2021-12-21 21:02:29,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 21:02:29,313 INFO L225 Difference]: With dead ends: 1356 [2021-12-21 21:02:29,313 INFO L226 Difference]: Without dead ends: 684 [2021-12-21 21:02:29,314 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 21:02:29,315 INFO L933 BasicCegarLoop]: 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, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 21:02:29,315 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [516 Valid, 1141 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 21:02:29,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2021-12-21 21:02:29,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 682. [2021-12-21 21:02:29,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682 states, 654 states have (on average 1.269113149847095) internal successors, (830), 664 states have internal predecessors, (830), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2021-12-21 21:02:29,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 867 transitions. [2021-12-21 21:02:29,330 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 867 transitions. Word has length 120 [2021-12-21 21:02:29,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 21:02:29,330 INFO L470 AbstractCegarLoop]: Abstraction has 682 states and 867 transitions. [2021-12-21 21:02:29,330 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-21 21:02:29,330 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 867 transitions. [2021-12-21 21:02:29,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-12-21 21:02:29,331 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 21:02:29,331 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 21:02:29,374 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-12-21 21:02:29,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 21:02:29,552 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-21 21:02:29,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 21:02:29,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1962601091, now seen corresponding path program 1 times [2021-12-21 21:02:29,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 21:02:29,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16709837] [2021-12-21 21:02:29,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 21:02:29,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 21:02:29,627 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-21 21:02:29,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [899390832] [2021-12-21 21:02:29,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 21:02:29,628 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 21:02:29,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:02:29,629 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) [2021-12-21 21:02:29,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-21 21:02:30,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 21:02:30,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 2100 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-21 21:02:30,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 21:02:30,733 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-21 21:02:30,733 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 21:02:30,733 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 21:02:30,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16709837] [2021-12-21 21:02:30,734 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-21 21:02:30,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [899390832] [2021-12-21 21:02:30,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [899390832] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 21:02:30,734 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 21:02:30,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 21:02:30,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707883655] [2021-12-21 21:02:30,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 21:02:30,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 21:02:30,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 21:02:30,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 21:02:30,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 21:02:30,737 INFO L87 Difference]: Start difference. First operand 682 states and 867 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-21 21:02:30,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 21:02:30,788 INFO L93 Difference]: Finished difference Result 1543 states and 1986 transitions. [2021-12-21 21:02:30,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 21:02:30,789 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 120 [2021-12-21 21:02:30,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 21:02:30,792 INFO L225 Difference]: With dead ends: 1543 [2021-12-21 21:02:30,792 INFO L226 Difference]: Without dead ends: 921 [2021-12-21 21:02:30,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 21:02:30,794 INFO L933 BasicCegarLoop]: 562 mSDtfsCounter, 220 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 1098 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 21:02:30,794 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [225 Valid, 1098 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 21:02:30,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2021-12-21 21:02:30,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 819. [2021-12-21 21:02:30,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 819 states, 788 states have (on average 1.2766497461928934) internal successors, (1006), 798 states have internal predecessors, (1006), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (21), 18 states have call predecessors, (21), 21 states have call successors, (21) [2021-12-21 21:02:30,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 819 states to 819 states and 1049 transitions. [2021-12-21 21:02:30,814 INFO L78 Accepts]: Start accepts. Automaton has 819 states and 1049 transitions. Word has length 120 [2021-12-21 21:02:30,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 21:02:30,814 INFO L470 AbstractCegarLoop]: Abstraction has 819 states and 1049 transitions. [2021-12-21 21:02:30,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-21 21:02:30,814 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states and 1049 transitions. [2021-12-21 21:02:30,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-12-21 21:02:30,817 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 21:02:30,817 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 21:02:30,842 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-12-21 21:02:31,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-12-21 21:02:31,028 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-21 21:02:31,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 21:02:31,028 INFO L85 PathProgramCache]: Analyzing trace with hash 2019311684, now seen corresponding path program 1 times [2021-12-21 21:02:31,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 21:02:31,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100858562] [2021-12-21 21:02:31,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 21:02:31,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 21:02:31,093 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-21 21:02:31,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [195853488] [2021-12-21 21:02:31,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 21:02:31,094 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 21:02:31,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:02:31,095 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) [2021-12-21 21:02:31,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-21 21:02:32,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 21:02:32,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 1237 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-21 21:02:32,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 21:02:32,234 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-21 21:02:32,234 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 21:02:32,234 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 21:02:32,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100858562] [2021-12-21 21:02:32,234 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-21 21:02:32,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [195853488] [2021-12-21 21:02:32,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [195853488] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 21:02:32,234 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 21:02:32,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 21:02:32,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662868454] [2021-12-21 21:02:32,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 21:02:32,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 21:02:32,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 21:02:32,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 21:02:32,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 21:02:32,237 INFO L87 Difference]: Start difference. First operand 819 states and 1049 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-12-21 21:02:32,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 21:02:32,278 INFO L93 Difference]: Finished difference Result 1587 states and 2050 transitions. [2021-12-21 21:02:32,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-21 21:02:32,279 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 135 [2021-12-21 21:02:32,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 21:02:32,282 INFO L225 Difference]: With dead ends: 1587 [2021-12-21 21:02:32,282 INFO L226 Difference]: Without dead ends: 822 [2021-12-21 21:02:32,284 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 21:02:32,284 INFO L933 BasicCegarLoop]: 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 [2021-12-21 21:02:32,284 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 1664 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 21:02:32,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2021-12-21 21:02:32,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 822. [2021-12-21 21:02:32,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 822 states, 790 states have (on average 1.2772151898734176) internal successors, (1009), 801 states have internal predecessors, (1009), 22 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (24), 18 states have call predecessors, (24), 21 states have call successors, (24) [2021-12-21 21:02:32,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 822 states to 822 states and 1055 transitions. [2021-12-21 21:02:32,303 INFO L78 Accepts]: Start accepts. Automaton has 822 states and 1055 transitions. Word has length 135 [2021-12-21 21:02:32,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 21:02:32,303 INFO L470 AbstractCegarLoop]: Abstraction has 822 states and 1055 transitions. [2021-12-21 21:02:32,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-12-21 21:02:32,304 INFO L276 IsEmpty]: Start isEmpty. Operand 822 states and 1055 transitions. [2021-12-21 21:02:32,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-12-21 21:02:32,304 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 21:02:32,305 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 21:02:32,335 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-12-21 21:02:32,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 21:02:32,519 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-21 21:02:32,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 21:02:32,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1160372552, now seen corresponding path program 1 times [2021-12-21 21:02:32,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 21:02:32,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123825948] [2021-12-21 21:02:32,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 21:02:32,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 21:02:32,564 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-21 21:02:32,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [264965563] [2021-12-21 21:02:32,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 21:02:32,565 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 21:02:32,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:02:32,566 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) [2021-12-21 21:02:32,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-21 21:02:33,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 21:02:33,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 1297 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-21 21:02:33,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 21:02:33,881 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 32 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-21 21:02:33,881 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-21 21:02:34,123 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 6 proven. 13 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-12-21 21:02:34,123 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 21:02:34,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123825948] [2021-12-21 21:02:34,123 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-21 21:02:34,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [264965563] [2021-12-21 21:02:34,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [264965563] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-21 21:02:34,123 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-21 21:02:34,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-12-21 21:02:34,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761353980] [2021-12-21 21:02:34,123 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-21 21:02:34,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-21 21:02:34,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 21:02:34,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-21 21:02:34,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-21 21:02:34,125 INFO L87 Difference]: Start difference. First operand 822 states and 1055 transitions. Second operand has 8 states, 8 states have (on average 16.5) internal successors, (132), 8 states have internal predecessors, (132), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-21 21:02:34,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 21:02:34,232 INFO L93 Difference]: Finished difference Result 1601 states and 2080 transitions. [2021-12-21 21:02:34,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-21 21:02:34,233 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.5) internal successors, (132), 8 states have internal predecessors, (132), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 139 [2021-12-21 21:02:34,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 21:02:34,236 INFO L225 Difference]: With dead ends: 1601 [2021-12-21 21:02:34,236 INFO L226 Difference]: Without dead ends: 833 [2021-12-21 21:02:34,238 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2021-12-21 21:02:34,239 INFO L933 BasicCegarLoop]: 556 mSDtfsCounter, 29 mSDsluCounter, 1105 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 1661 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 21:02:34,239 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 1661 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 21:02:34,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 833 states. [2021-12-21 21:02:34,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 833 to 831. [2021-12-21 21:02:34,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 831 states, 798 states have (on average 1.281954887218045) internal successors, (1023), 809 states have internal predecessors, (1023), 22 states have call successors, (22), 4 states have call predecessors, (22), 5 states have return successors, (27), 18 states have call predecessors, (27), 21 states have call successors, (27) [2021-12-21 21:02:34,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 1072 transitions. [2021-12-21 21:02:34,259 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 1072 transitions. Word has length 139 [2021-12-21 21:02:34,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 21:02:34,260 INFO L470 AbstractCegarLoop]: Abstraction has 831 states and 1072 transitions. [2021-12-21 21:02:34,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.5) internal successors, (132), 8 states have internal predecessors, (132), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-21 21:02:34,260 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 1072 transitions. [2021-12-21 21:02:34,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-12-21 21:02:34,270 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 21:02:34,270 INFO L514 BasicCegarLoop]: trace histogram [12, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 21:02:34,301 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-12-21 21:02:34,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-12-21 21:02:34,487 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-21 21:02:34,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 21:02:34,488 INFO L85 PathProgramCache]: Analyzing trace with hash 840532164, now seen corresponding path program 2 times [2021-12-21 21:02:34,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 21:02:34,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201991208] [2021-12-21 21:02:34,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 21:02:34,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 21:02:34,542 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-21 21:02:34,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1007097041] [2021-12-21 21:02:34,543 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-21 21:02:34,543 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 21:02:34,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:02:34,548 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) [2021-12-21 21:02:34,549 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process