/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-bad-commit-1.wvr-bad.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 01:39:13,714 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 01:39:13,715 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 01:39:13,759 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-18 01:39:13,759 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-18 01:39:13,760 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-18 01:39:13,761 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-18 01:39:13,762 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-18 01:39:13,772 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-18 01:39:13,773 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-18 01:39:13,774 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-18 01:39:13,774 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-18 01:39:13,775 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 01:39:13,775 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 01:39:13,776 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 01:39:13,790 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 01:39:13,792 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 01:39:13,793 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 01:39:13,794 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 01:39:13,795 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 01:39:13,796 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 01:39:13,797 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 01:39:13,798 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 01:39:13,798 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 01:39:13,800 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-18 01:39:13,800 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-18 01:39:13,800 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-18 01:39:13,801 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-18 01:39:13,801 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-18 01:39:13,801 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-18 01:39:13,801 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-18 01:39:13,802 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-18 01:39:13,802 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-18 01:39:13,803 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-18 01:39:13,803 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-18 01:39:13,803 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-18 01:39:13,804 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-18 01:39:13,804 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-18 01:39:13,804 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 01:39:13,805 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 01:39:13,805 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 01:39:13,806 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-01-18 01:39:13,823 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 01:39:13,823 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 01:39:13,823 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 01:39:13,824 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 01:39:13,824 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 01:39:13,824 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 01:39:13,825 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 01:39:13,825 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 01:39:13,825 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 01:39:13,825 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 01:39:13,825 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 01:39:13,825 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 01:39:13,825 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 01:39:13,825 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 01:39:13,825 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 01:39:13,825 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 01:39:13,826 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 01:39:13,826 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 01:39:13,826 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 01:39:13,826 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 01:39:13,826 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 01:39:13,826 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 01:39:13,826 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 01:39:13,826 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 01:39:13,826 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 01:39:13,826 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 01:39:13,827 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 01:39:13,827 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 01:39:13,827 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 01:39:13,827 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 01:39:13,827 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 01:39:13,827 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 01:39:13,827 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 01:39:13,827 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 01:39:14,008 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 01:39:14,032 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 01:39:14,034 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 01:39:14,035 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 01:39:14,036 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 01:39:14,037 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-commit-1.wvr-bad.c [2022-01-18 01:39:14,088 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4a86b94f/87e61da4bab346ebacdad7e7fbe20668/FLAGae33e7db0 [2022-01-18 01:39:14,484 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 01:39:14,485 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-commit-1.wvr-bad.c [2022-01-18 01:39:14,494 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4a86b94f/87e61da4bab346ebacdad7e7fbe20668/FLAGae33e7db0 [2022-01-18 01:39:14,886 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4a86b94f/87e61da4bab346ebacdad7e7fbe20668 [2022-01-18 01:39:14,888 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 01:39:14,889 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 01:39:14,891 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 01:39:14,891 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 01:39:14,894 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 01:39:14,895 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 01:39:14" (1/1) ... [2022-01-18 01:39:14,896 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@475aa279 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:39:14, skipping insertion in model container [2022-01-18 01:39:14,896 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 01:39:14" (1/1) ... [2022-01-18 01:39:14,904 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 01:39:14,920 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 01:39:15,111 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-commit-1.wvr-bad.c[5161,5174] [2022-01-18 01:39:15,122 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 01:39:15,134 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 01:39:15,168 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-commit-1.wvr-bad.c[5161,5174] [2022-01-18 01:39:15,170 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 01:39:15,184 INFO L208 MainTranslator]: Completed translation [2022-01-18 01:39:15,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:39:15 WrapperNode [2022-01-18 01:39:15,184 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 01:39:15,185 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 01:39:15,185 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 01:39:15,186 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 01:39:15,190 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:39:15" (1/1) ... [2022-01-18 01:39:15,206 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:39:15" (1/1) ... [2022-01-18 01:39:15,241 INFO L137 Inliner]: procedures = 25, calls = 68, calls flagged for inlining = 20, calls inlined = 24, statements flattened = 336 [2022-01-18 01:39:15,241 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 01:39:15,242 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 01:39:15,242 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 01:39:15,242 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 01:39:15,250 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:39:15" (1/1) ... [2022-01-18 01:39:15,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:39:15" (1/1) ... [2022-01-18 01:39:15,263 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:39:15" (1/1) ... [2022-01-18 01:39:15,264 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:39:15" (1/1) ... [2022-01-18 01:39:15,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:39:15" (1/1) ... [2022-01-18 01:39:15,284 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:39:15" (1/1) ... [2022-01-18 01:39:15,286 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:39:15" (1/1) ... [2022-01-18 01:39:15,290 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 01:39:15,291 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 01:39:15,306 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 01:39:15,306 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 01:39:15,307 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:39:15" (1/1) ... [2022-01-18 01:39:15,313 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 01:39:15,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:39:15,342 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-18 01:39:15,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-18 01:39:15,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 01:39:15,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 01:39:15,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 01:39:15,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-18 01:39:15,379 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-18 01:39:15,380 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-18 01:39:15,380 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-18 01:39:15,380 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-18 01:39:15,380 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-01-18 01:39:15,380 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-01-18 01:39:15,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 01:39:15,380 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-18 01:39:15,380 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-18 01:39:15,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-18 01:39:15,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 01:39:15,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 01:39:15,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 01:39:15,382 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 01:39:15,495 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 01:39:15,497 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 01:39:15,934 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 01:39:16,079 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 01:39:16,079 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-01-18 01:39:16,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 01:39:16 BoogieIcfgContainer [2022-01-18 01:39:16,082 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 01:39:16,083 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 01:39:16,083 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 01:39:16,086 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 01:39:16,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 01:39:14" (1/3) ... [2022-01-18 01:39:16,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6461d82c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 01:39:16, skipping insertion in model container [2022-01-18 01:39:16,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:39:15" (2/3) ... [2022-01-18 01:39:16,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6461d82c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 01:39:16, skipping insertion in model container [2022-01-18 01:39:16,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 01:39:16" (3/3) ... [2022-01-18 01:39:16,088 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-bad-commit-1.wvr-bad.c [2022-01-18 01:39:16,092 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 01:39:16,093 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 01:39:16,093 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 01:39:16,093 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 01:39:16,143 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,143 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,143 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,144 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,144 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,144 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,144 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,144 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,144 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,145 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,145 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,145 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,145 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,145 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,146 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,146 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,146 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,146 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,147 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,147 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,148 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,148 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,148 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,148 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,148 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,148 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,148 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,149 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,149 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,149 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,149 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,149 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,150 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,150 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,150 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,150 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,151 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,151 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,151 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,151 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,151 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,151 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,151 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,152 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,152 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,152 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,153 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,153 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,153 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,153 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,153 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,154 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,154 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,154 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,154 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,154 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,155 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,155 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,156 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,156 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,156 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,156 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,156 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,156 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,157 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,157 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,157 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,157 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,161 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,162 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,162 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,162 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,163 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~nondet15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,164 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~nondet15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,164 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~nondet15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,164 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~nondet15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,165 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,165 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,165 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,165 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,166 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~nondet15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,166 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~nondet15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,166 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~nondet15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,167 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~nondet15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,167 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,167 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,168 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,171 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,176 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,176 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,176 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,176 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,177 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,177 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,177 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,177 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,177 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,178 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,178 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,179 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,187 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,187 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,187 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,188 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~nondet15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,188 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,188 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,188 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,188 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,188 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,189 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,189 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,189 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,190 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,190 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,190 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,190 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,190 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,190 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,190 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,190 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,191 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,191 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,191 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,191 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,191 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,191 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,192 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,192 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,192 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,192 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,192 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:39:16,195 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-01-18 01:39:16,235 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 01:39:16,240 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 [2022-01-18 01:39:16,241 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-18 01:39:16,253 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 256 places, 273 transitions, 570 flow [2022-01-18 01:39:16,552 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 7034 states, 7033 states have (on average 4.403810607137779) internal successors, (30972), 7033 states have internal predecessors, (30972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:16,587 INFO L276 IsEmpty]: Start isEmpty. Operand has 7034 states, 7033 states have (on average 4.403810607137779) internal successors, (30972), 7033 states have internal predecessors, (30972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:16,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-01-18 01:39:16,657 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:39:16,658 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:39:16,659 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:39:16,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:39:16,663 INFO L85 PathProgramCache]: Analyzing trace with hash -334718937, now seen corresponding path program 1 times [2022-01-18 01:39:16,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:39:16,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196786894] [2022-01-18 01:39:16,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:39:16,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:39:16,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:39:16,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:39:16,942 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:39:16,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196786894] [2022-01-18 01:39:16,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196786894] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:39:16,942 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:39:16,943 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 01:39:16,945 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781767503] [2022-01-18 01:39:16,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:39:16,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-18 01:39:16,951 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:39:16,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-18 01:39:16,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 01:39:17,016 INFO L87 Difference]: Start difference. First operand has 7034 states, 7033 states have (on average 4.403810607137779) internal successors, (30972), 7033 states have internal predecessors, (30972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 92.5) internal successors, (185), 2 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:17,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:39:17,201 INFO L93 Difference]: Finished difference Result 7034 states and 29229 transitions. [2022-01-18 01:39:17,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-18 01:39:17,204 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 92.5) internal successors, (185), 2 states have internal predecessors, (185), 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 185 [2022-01-18 01:39:17,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:39:17,305 INFO L225 Difference]: With dead ends: 7034 [2022-01-18 01:39:17,306 INFO L226 Difference]: Without dead ends: 7027 [2022-01-18 01:39:17,307 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 [2022-01-18 01:39:17,311 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 01:39:17,312 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 232 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 01:39:17,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7027 states. [2022-01-18 01:39:17,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7027 to 7027. [2022-01-18 01:39:17,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7027 states, 7026 states have (on average 4.159123256475946) internal successors, (29222), 7026 states have internal predecessors, (29222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:17,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7027 states to 7027 states and 29222 transitions. [2022-01-18 01:39:17,704 INFO L78 Accepts]: Start accepts. Automaton has 7027 states and 29222 transitions. Word has length 185 [2022-01-18 01:39:17,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:39:17,704 INFO L470 AbstractCegarLoop]: Abstraction has 7027 states and 29222 transitions. [2022-01-18 01:39:17,705 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 92.5) internal successors, (185), 2 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:17,705 INFO L276 IsEmpty]: Start isEmpty. Operand 7027 states and 29222 transitions. [2022-01-18 01:39:17,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-01-18 01:39:17,726 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:39:17,727 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:39:17,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 01:39:17,728 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:39:17,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:39:17,730 INFO L85 PathProgramCache]: Analyzing trace with hash 2110720401, now seen corresponding path program 1 times [2022-01-18 01:39:17,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:39:17,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646543958] [2022-01-18 01:39:17,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:39:17,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:39:17,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:39:18,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:39:18,104 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:39:18,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646543958] [2022-01-18 01:39:18,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646543958] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:39:18,105 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:39:18,105 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 01:39:18,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596763510] [2022-01-18 01:39:18,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:39:18,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 01:39:18,107 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:39:18,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 01:39:18,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-18 01:39:18,108 INFO L87 Difference]: Start difference. First operand 7027 states and 29222 transitions. Second operand has 5 states, 5 states have (on average 37.6) internal successors, (188), 5 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:18,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:39:18,438 INFO L93 Difference]: Finished difference Result 13887 states and 58274 transitions. [2022-01-18 01:39:18,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 01:39:18,438 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.6) internal successors, (188), 5 states have internal predecessors, (188), 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 188 [2022-01-18 01:39:18,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:39:18,645 INFO L225 Difference]: With dead ends: 13887 [2022-01-18 01:39:18,645 INFO L226 Difference]: Without dead ends: 13565 [2022-01-18 01:39:18,649 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-18 01:39:18,653 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 51 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 727 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:39:18,655 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 727 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:39:18,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13565 states. [2022-01-18 01:39:19,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13565 to 11589. [2022-01-18 01:39:19,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11589 states, 11588 states have (on average 4.234294097342078) internal successors, (49067), 11588 states have internal predecessors, (49067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:19,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11589 states to 11589 states and 49067 transitions. [2022-01-18 01:39:19,254 INFO L78 Accepts]: Start accepts. Automaton has 11589 states and 49067 transitions. Word has length 188 [2022-01-18 01:39:19,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:39:19,256 INFO L470 AbstractCegarLoop]: Abstraction has 11589 states and 49067 transitions. [2022-01-18 01:39:19,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.6) internal successors, (188), 5 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:19,256 INFO L276 IsEmpty]: Start isEmpty. Operand 11589 states and 49067 transitions. [2022-01-18 01:39:19,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-01-18 01:39:19,302 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:39:19,302 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:39:19,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 01:39:19,303 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:39:19,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:39:19,303 INFO L85 PathProgramCache]: Analyzing trace with hash 146949394, now seen corresponding path program 1 times [2022-01-18 01:39:19,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:39:19,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024990434] [2022-01-18 01:39:19,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:39:19,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:39:19,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:39:19,548 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:39:19,548 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:39:19,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024990434] [2022-01-18 01:39:19,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024990434] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:39:19,548 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:39:19,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 01:39:19,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283824710] [2022-01-18 01:39:19,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:39:19,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 01:39:19,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:39:19,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 01:39:19,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 01:39:19,549 INFO L87 Difference]: Start difference. First operand 11589 states and 49067 transitions. Second operand has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:19,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:39:19,851 INFO L93 Difference]: Finished difference Result 23014 states and 97293 transitions. [2022-01-18 01:39:19,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 01:39:19,851 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 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 192 [2022-01-18 01:39:19,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:39:19,976 INFO L225 Difference]: With dead ends: 23014 [2022-01-18 01:39:19,976 INFO L226 Difference]: Without dead ends: 22420 [2022-01-18 01:39:19,977 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 01:39:19,981 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 48 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 01:39:19,982 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 400 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 01:39:20,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22420 states. [2022-01-18 01:39:20,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22420 to 17850. [2022-01-18 01:39:20,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17850 states, 17849 states have (on average 4.327413300465012) internal successors, (77240), 17849 states have internal predecessors, (77240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:20,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17850 states to 17850 states and 77240 transitions. [2022-01-18 01:39:20,933 INFO L78 Accepts]: Start accepts. Automaton has 17850 states and 77240 transitions. Word has length 192 [2022-01-18 01:39:20,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:39:20,933 INFO L470 AbstractCegarLoop]: Abstraction has 17850 states and 77240 transitions. [2022-01-18 01:39:20,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:20,934 INFO L276 IsEmpty]: Start isEmpty. Operand 17850 states and 77240 transitions. [2022-01-18 01:39:21,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-01-18 01:39:21,011 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:39:21,011 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:39:21,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 01:39:21,011 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:39:21,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:39:21,012 INFO L85 PathProgramCache]: Analyzing trace with hash 2094017848, now seen corresponding path program 1 times [2022-01-18 01:39:21,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:39:21,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196765840] [2022-01-18 01:39:21,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:39:21,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:39:21,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:39:21,276 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:39:21,276 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:39:21,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196765840] [2022-01-18 01:39:21,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196765840] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:39:21,276 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:39:21,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 01:39:21,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184665799] [2022-01-18 01:39:21,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:39:21,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 01:39:21,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:39:21,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 01:39:21,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 01:39:21,278 INFO L87 Difference]: Start difference. First operand 17850 states and 77240 transitions. Second operand has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:21,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:39:21,747 INFO L93 Difference]: Finished difference Result 34720 states and 150369 transitions. [2022-01-18 01:39:21,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 01:39:21,757 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 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 192 [2022-01-18 01:39:21,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:39:22,041 INFO L225 Difference]: With dead ends: 34720 [2022-01-18 01:39:22,041 INFO L226 Difference]: Without dead ends: 34048 [2022-01-18 01:39:22,041 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 01:39:22,046 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 84 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 01:39:22,048 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 316 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 01:39:22,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34048 states. [2022-01-18 01:39:22,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34048 to 28858. [2022-01-18 01:39:23,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28858 states, 28857 states have (on average 4.421804068336972) internal successors, (127600), 28857 states have internal predecessors, (127600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:23,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28858 states to 28858 states and 127600 transitions. [2022-01-18 01:39:23,469 INFO L78 Accepts]: Start accepts. Automaton has 28858 states and 127600 transitions. Word has length 192 [2022-01-18 01:39:23,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:39:23,470 INFO L470 AbstractCegarLoop]: Abstraction has 28858 states and 127600 transitions. [2022-01-18 01:39:23,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:23,470 INFO L276 IsEmpty]: Start isEmpty. Operand 28858 states and 127600 transitions. [2022-01-18 01:39:23,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-01-18 01:39:23,581 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:39:23,582 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:39:23,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-18 01:39:23,582 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:39:23,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:39:23,583 INFO L85 PathProgramCache]: Analyzing trace with hash 443362995, now seen corresponding path program 1 times [2022-01-18 01:39:23,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:39:23,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128481247] [2022-01-18 01:39:23,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:39:23,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:39:23,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:39:23,645 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:39:23,645 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:39:23,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128481247] [2022-01-18 01:39:23,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128481247] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:39:23,646 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:39:23,646 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 01:39:23,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218738015] [2022-01-18 01:39:23,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:39:23,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 01:39:23,646 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:39:23,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 01:39:23,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 01:39:23,647 INFO L87 Difference]: Start difference. First operand 28858 states and 127600 transitions. Second operand has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:23,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:39:23,966 INFO L93 Difference]: Finished difference Result 36678 states and 158104 transitions. [2022-01-18 01:39:23,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 01:39:23,966 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 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 193 [2022-01-18 01:39:23,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:39:24,153 INFO L225 Difference]: With dead ends: 36678 [2022-01-18 01:39:24,154 INFO L226 Difference]: Without dead ends: 36678 [2022-01-18 01:39:24,154 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 01:39:24,154 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 62 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 01:39:24,155 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 291 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 01:39:24,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36678 states. [2022-01-18 01:39:25,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36678 to 30785. [2022-01-18 01:39:25,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30785 states, 30784 states have (on average 4.354404885654886) internal successors, (134046), 30784 states have internal predecessors, (134046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:25,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30785 states to 30785 states and 134046 transitions. [2022-01-18 01:39:25,694 INFO L78 Accepts]: Start accepts. Automaton has 30785 states and 134046 transitions. Word has length 193 [2022-01-18 01:39:25,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:39:25,695 INFO L470 AbstractCegarLoop]: Abstraction has 30785 states and 134046 transitions. [2022-01-18 01:39:25,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:25,695 INFO L276 IsEmpty]: Start isEmpty. Operand 30785 states and 134046 transitions. [2022-01-18 01:39:25,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-01-18 01:39:25,794 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:39:25,795 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:39:25,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-18 01:39:25,795 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:39:25,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:39:25,796 INFO L85 PathProgramCache]: Analyzing trace with hash -679441705, now seen corresponding path program 1 times [2022-01-18 01:39:25,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:39:25,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062045290] [2022-01-18 01:39:25,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:39:25,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:39:25,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:39:25,884 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:39:25,884 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:39:25,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062045290] [2022-01-18 01:39:25,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062045290] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:39:25,884 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:39:25,885 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 01:39:25,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900173156] [2022-01-18 01:39:25,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:39:25,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 01:39:25,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:39:25,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 01:39:25,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-18 01:39:25,886 INFO L87 Difference]: Start difference. First operand 30785 states and 134046 transitions. Second operand has 6 states, 6 states have (on average 32.666666666666664) internal successors, (196), 6 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:26,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:39:26,517 INFO L93 Difference]: Finished difference Result 42783 states and 178873 transitions. [2022-01-18 01:39:26,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 01:39:26,518 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.666666666666664) internal successors, (196), 6 states have internal predecessors, (196), 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 196 [2022-01-18 01:39:26,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:39:26,687 INFO L225 Difference]: With dead ends: 42783 [2022-01-18 01:39:26,687 INFO L226 Difference]: Without dead ends: 36321 [2022-01-18 01:39:26,687 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:39:26,692 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 197 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 787 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:39:26,693 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [197 Valid, 787 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:39:26,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36321 states. [2022-01-18 01:39:27,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36321 to 35479. [2022-01-18 01:39:27,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35479 states, 35478 states have (on average 4.263233553187891) internal successors, (151251), 35478 states have internal predecessors, (151251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:28,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35479 states to 35479 states and 151251 transitions. [2022-01-18 01:39:28,014 INFO L78 Accepts]: Start accepts. Automaton has 35479 states and 151251 transitions. Word has length 196 [2022-01-18 01:39:28,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:39:28,014 INFO L470 AbstractCegarLoop]: Abstraction has 35479 states and 151251 transitions. [2022-01-18 01:39:28,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.666666666666664) internal successors, (196), 6 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:28,015 INFO L276 IsEmpty]: Start isEmpty. Operand 35479 states and 151251 transitions. [2022-01-18 01:39:28,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-01-18 01:39:28,134 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:39:28,134 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:39:28,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-18 01:39:28,135 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:39:28,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:39:28,135 INFO L85 PathProgramCache]: Analyzing trace with hash 24820010, now seen corresponding path program 1 times [2022-01-18 01:39:28,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:39:28,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918918457] [2022-01-18 01:39:28,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:39:28,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:39:28,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:39:28,467 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 01:39:28,467 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:39:28,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918918457] [2022-01-18 01:39:28,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918918457] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:39:28,468 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:39:28,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 01:39:28,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819888885] [2022-01-18 01:39:28,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:39:28,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 01:39:28,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:39:28,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 01:39:28,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 01:39:28,469 INFO L87 Difference]: Start difference. First operand 35479 states and 151251 transitions. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:28,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:39:28,703 INFO L93 Difference]: Finished difference Result 25320 states and 104975 transitions. [2022-01-18 01:39:28,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 01:39:28,704 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 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 197 [2022-01-18 01:39:28,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:39:28,800 INFO L225 Difference]: With dead ends: 25320 [2022-01-18 01:39:28,800 INFO L226 Difference]: Without dead ends: 24769 [2022-01-18 01:39:28,800 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 01:39:28,800 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 78 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:39:28,801 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 296 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:39:28,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24769 states. [2022-01-18 01:39:29,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24769 to 19684. [2022-01-18 01:39:29,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19684 states, 19683 states have (on average 4.256566580297719) internal successors, (83782), 19683 states have internal predecessors, (83782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:29,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19684 states to 19684 states and 83782 transitions. [2022-01-18 01:39:29,638 INFO L78 Accepts]: Start accepts. Automaton has 19684 states and 83782 transitions. Word has length 197 [2022-01-18 01:39:29,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:39:29,639 INFO L470 AbstractCegarLoop]: Abstraction has 19684 states and 83782 transitions. [2022-01-18 01:39:29,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:29,639 INFO L276 IsEmpty]: Start isEmpty. Operand 19684 states and 83782 transitions. [2022-01-18 01:39:29,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-01-18 01:39:29,688 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:39:29,688 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:39:29,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-18 01:39:29,688 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:39:29,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:39:29,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1695141506, now seen corresponding path program 1 times [2022-01-18 01:39:29,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:39:29,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9708359] [2022-01-18 01:39:29,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:39:29,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:39:29,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:39:30,668 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:39:30,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:39:30,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9708359] [2022-01-18 01:39:30,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9708359] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 01:39:30,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [399055651] [2022-01-18 01:39:30,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:39:30,669 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:39:30,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:39:30,675 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 01:39:30,676 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-18 01:39:30,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:39:30,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 44 conjunts are in the unsatisfiable core [2022-01-18 01:39:30,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 01:39:31,619 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 15 treesize of output 11 [2022-01-18 01:39:32,915 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 6 treesize of output 5 [2022-01-18 01:39:33,062 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 6 treesize of output 5 [2022-01-18 01:39:33,164 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 6 treesize of output 5 [2022-01-18 01:39:33,352 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:39:33,353 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 01:39:35,230 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 01:39:35,230 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 50 [2022-01-18 01:39:35,242 INFO L353 Elim1Store]: treesize reduction 9, result has 43.8 percent of original size [2022-01-18 01:39:35,242 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 398 treesize of output 373 [2022-01-18 01:39:35,250 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-18 01:39:35,251 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 183 treesize of output 135 [2022-01-18 01:39:35,260 INFO L353 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-01-18 01:39:35,260 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 318 treesize of output 222 [2022-01-18 01:39:35,272 INFO L353 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-01-18 01:39:35,272 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 222 treesize of output 198 [2022-01-18 01:39:36,115 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:39:36,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [399055651] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 01:39:36,116 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 01:39:36,116 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 24, 20] total 57 [2022-01-18 01:39:36,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026718613] [2022-01-18 01:39:36,116 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 01:39:36,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2022-01-18 01:39:36,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:39:36,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2022-01-18 01:39:36,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=493, Invalid=2636, Unknown=63, NotChecked=0, Total=3192 [2022-01-18 01:39:36,118 INFO L87 Difference]: Start difference. First operand 19684 states and 83782 transitions. Second operand has 57 states, 57 states have (on average 9.280701754385966) internal successors, (529), 57 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:41,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:39:41,758 INFO L93 Difference]: Finished difference Result 113288 states and 476539 transitions. [2022-01-18 01:39:41,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 01:39:41,758 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 57 states have (on average 9.280701754385966) internal successors, (529), 57 states have internal predecessors, (529), 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 203 [2022-01-18 01:39:41,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:39:42,453 INFO L225 Difference]: With dead ends: 113288 [2022-01-18 01:39:42,453 INFO L226 Difference]: Without dead ends: 111884 [2022-01-18 01:39:42,456 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 473 GetRequests, 372 SyntacticMatches, 2 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2753 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=1972, Invalid=8065, Unknown=63, NotChecked=0, Total=10100 [2022-01-18 01:39:42,456 INFO L933 BasicCegarLoop]: 246 mSDtfsCounter, 5847 mSDsluCounter, 5711 mSDsCounter, 0 mSdLazyCounter, 1466 mSolverCounterSat, 268 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5847 SdHoareTripleChecker+Valid, 5413 SdHoareTripleChecker+Invalid, 2514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 268 IncrementalHoareTripleChecker+Valid, 1466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 780 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 01:39:42,457 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5847 Valid, 5413 Invalid, 2514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [268 Valid, 1466 Invalid, 0 Unknown, 780 Unchecked, 1.0s Time] [2022-01-18 01:39:42,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111884 states. [2022-01-18 01:39:44,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111884 to 29814. [2022-01-18 01:39:44,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29814 states, 29813 states have (on average 4.400496427732868) internal successors, (131192), 29813 states have internal predecessors, (131192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:44,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29814 states to 29814 states and 131192 transitions. [2022-01-18 01:39:44,745 INFO L78 Accepts]: Start accepts. Automaton has 29814 states and 131192 transitions. Word has length 203 [2022-01-18 01:39:44,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:39:44,745 INFO L470 AbstractCegarLoop]: Abstraction has 29814 states and 131192 transitions. [2022-01-18 01:39:44,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 57 states have (on average 9.280701754385966) internal successors, (529), 57 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:44,745 INFO L276 IsEmpty]: Start isEmpty. Operand 29814 states and 131192 transitions. [2022-01-18 01:39:44,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-01-18 01:39:44,826 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:39:44,826 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:39:44,842 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-01-18 01:39:45,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:39:45,027 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:39:45,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:39:45,028 INFO L85 PathProgramCache]: Analyzing trace with hash 135101103, now seen corresponding path program 1 times [2022-01-18 01:39:45,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:39:45,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056976871] [2022-01-18 01:39:45,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:39:45,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:39:45,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:39:45,117 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 01:39:45,117 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:39:45,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056976871] [2022-01-18 01:39:45,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056976871] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:39:45,118 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:39:45,118 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 01:39:45,118 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743657822] [2022-01-18 01:39:45,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:39:45,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 01:39:45,119 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:39:45,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 01:39:45,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 01:39:45,119 INFO L87 Difference]: Start difference. First operand 29814 states and 131192 transitions. Second operand has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:45,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:39:45,508 INFO L93 Difference]: Finished difference Result 44065 states and 190012 transitions. [2022-01-18 01:39:45,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 01:39:45,509 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 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 204 [2022-01-18 01:39:45,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:39:45,764 INFO L225 Difference]: With dead ends: 44065 [2022-01-18 01:39:45,764 INFO L226 Difference]: Without dead ends: 42145 [2022-01-18 01:39:45,764 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 01:39:45,766 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 51 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 01:39:45,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 354 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 01:39:45,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42145 states. [2022-01-18 01:39:46,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42145 to 37420. [2022-01-18 01:39:47,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37420 states, 37419 states have (on average 4.362596541863759) internal successors, (163244), 37419 states have internal predecessors, (163244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:47,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37420 states to 37420 states and 163244 transitions. [2022-01-18 01:39:47,196 INFO L78 Accepts]: Start accepts. Automaton has 37420 states and 163244 transitions. Word has length 204 [2022-01-18 01:39:47,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:39:47,197 INFO L470 AbstractCegarLoop]: Abstraction has 37420 states and 163244 transitions. [2022-01-18 01:39:47,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:47,197 INFO L276 IsEmpty]: Start isEmpty. Operand 37420 states and 163244 transitions. [2022-01-18 01:39:47,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-01-18 01:39:47,681 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:39:47,690 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:39:47,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-18 01:39:47,691 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:39:47,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:39:47,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1454274442, now seen corresponding path program 1 times [2022-01-18 01:39:47,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:39:47,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612383538] [2022-01-18 01:39:47,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:39:47,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:39:47,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:39:47,788 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 01:39:47,788 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:39:47,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612383538] [2022-01-18 01:39:47,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612383538] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:39:47,788 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:39:47,788 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 01:39:47,788 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088036913] [2022-01-18 01:39:47,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:39:47,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 01:39:47,789 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:39:47,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 01:39:47,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 01:39:47,789 INFO L87 Difference]: Start difference. First operand 37420 states and 163244 transitions. Second operand has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:48,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:39:48,144 INFO L93 Difference]: Finished difference Result 33559 states and 143220 transitions. [2022-01-18 01:39:48,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 01:39:48,144 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 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 204 [2022-01-18 01:39:48,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:39:48,311 INFO L225 Difference]: With dead ends: 33559 [2022-01-18 01:39:48,311 INFO L226 Difference]: Without dead ends: 32493 [2022-01-18 01:39:48,311 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 01:39:48,312 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 57 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 01:39:48,313 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 291 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 01:39:48,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32493 states. [2022-01-18 01:39:49,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32493 to 25012. [2022-01-18 01:39:49,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25012 states, 25011 states have (on average 4.363000279876855) internal successors, (109123), 25011 states have internal predecessors, (109123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:49,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25012 states to 25012 states and 109123 transitions. [2022-01-18 01:39:49,434 INFO L78 Accepts]: Start accepts. Automaton has 25012 states and 109123 transitions. Word has length 204 [2022-01-18 01:39:49,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:39:49,434 INFO L470 AbstractCegarLoop]: Abstraction has 25012 states and 109123 transitions. [2022-01-18 01:39:49,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:49,435 INFO L276 IsEmpty]: Start isEmpty. Operand 25012 states and 109123 transitions. [2022-01-18 01:39:49,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-01-18 01:39:49,504 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:39:49,504 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:39:49,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-18 01:39:49,504 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:39:49,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:39:49,505 INFO L85 PathProgramCache]: Analyzing trace with hash 2132101305, now seen corresponding path program 2 times [2022-01-18 01:39:49,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:39:49,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095872264] [2022-01-18 01:39:49,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:39:49,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:39:49,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:39:49,540 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 01:39:49,540 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:39:49,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095872264] [2022-01-18 01:39:49,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095872264] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:39:49,541 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:39:49,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 01:39:49,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311313053] [2022-01-18 01:39:49,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:39:49,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 01:39:49,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:39:49,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 01:39:49,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 01:39:49,541 INFO L87 Difference]: Start difference. First operand 25012 states and 109123 transitions. Second operand has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:49,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:39:49,783 INFO L93 Difference]: Finished difference Result 30692 states and 131124 transitions. [2022-01-18 01:39:49,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 01:39:49,784 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 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 207 [2022-01-18 01:39:49,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:39:49,939 INFO L225 Difference]: With dead ends: 30692 [2022-01-18 01:39:49,939 INFO L226 Difference]: Without dead ends: 30692 [2022-01-18 01:39:49,939 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 01:39:49,943 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 48 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 01:39:49,944 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 470 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 01:39:49,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30692 states. [2022-01-18 01:39:50,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30692 to 26183. [2022-01-18 01:39:50,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26183 states, 26182 states have (on average 4.3358414177679325) internal successors, (113521), 26182 states have internal predecessors, (113521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:50,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26183 states to 26183 states and 113521 transitions. [2022-01-18 01:39:50,957 INFO L78 Accepts]: Start accepts. Automaton has 26183 states and 113521 transitions. Word has length 207 [2022-01-18 01:39:50,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:39:50,957 INFO L470 AbstractCegarLoop]: Abstraction has 26183 states and 113521 transitions. [2022-01-18 01:39:50,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:50,957 INFO L276 IsEmpty]: Start isEmpty. Operand 26183 states and 113521 transitions. [2022-01-18 01:39:51,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-01-18 01:39:51,023 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:39:51,024 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:39:51,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-18 01:39:51,024 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:39:51,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:39:51,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1485031249, now seen corresponding path program 1 times [2022-01-18 01:39:51,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:39:51,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248449814] [2022-01-18 01:39:51,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:39:51,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:39:51,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:39:51,076 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-18 01:39:51,076 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:39:51,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248449814] [2022-01-18 01:39:51,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248449814] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:39:51,076 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:39:51,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 01:39:51,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900225213] [2022-01-18 01:39:51,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:39:51,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 01:39:51,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:39:51,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 01:39:51,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 01:39:51,078 INFO L87 Difference]: Start difference. First operand 26183 states and 113521 transitions. Second operand has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:51,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:39:51,355 INFO L93 Difference]: Finished difference Result 34566 states and 147995 transitions. [2022-01-18 01:39:51,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 01:39:51,355 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 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 212 [2022-01-18 01:39:51,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:39:51,492 INFO L225 Difference]: With dead ends: 34566 [2022-01-18 01:39:51,492 INFO L226 Difference]: Without dead ends: 34566 [2022-01-18 01:39:51,492 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 01:39:51,492 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 49 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 01:39:51,493 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 461 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 01:39:51,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34566 states. [2022-01-18 01:39:52,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34566 to 29337. [2022-01-18 01:39:52,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29337 states, 29336 states have (on average 4.347286610308154) internal successors, (127532), 29336 states have internal predecessors, (127532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:52,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29337 states to 29337 states and 127532 transitions. [2022-01-18 01:39:52,574 INFO L78 Accepts]: Start accepts. Automaton has 29337 states and 127532 transitions. Word has length 212 [2022-01-18 01:39:52,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:39:52,574 INFO L470 AbstractCegarLoop]: Abstraction has 29337 states and 127532 transitions. [2022-01-18 01:39:52,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:52,574 INFO L276 IsEmpty]: Start isEmpty. Operand 29337 states and 127532 transitions. [2022-01-18 01:39:52,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-01-18 01:39:52,634 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:39:52,634 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:39:52,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-18 01:39:52,634 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:39:52,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:39:52,635 INFO L85 PathProgramCache]: Analyzing trace with hash -430633187, now seen corresponding path program 1 times [2022-01-18 01:39:52,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:39:52,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823622080] [2022-01-18 01:39:52,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:39:52,635 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:39:52,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:39:52,706 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-18 01:39:52,707 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:39:52,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823622080] [2022-01-18 01:39:52,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823622080] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:39:52,707 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:39:52,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 01:39:52,707 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449291247] [2022-01-18 01:39:52,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:39:52,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 01:39:52,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:39:52,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 01:39:52,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-18 01:39:52,708 INFO L87 Difference]: Start difference. First operand 29337 states and 127532 transitions. Second operand has 6 states, 6 states have (on average 35.0) internal successors, (210), 6 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:53,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:39:53,267 INFO L93 Difference]: Finished difference Result 32966 states and 140236 transitions. [2022-01-18 01:39:53,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 01:39:53,268 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 35.0) internal successors, (210), 6 states have internal predecessors, (210), 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 212 [2022-01-18 01:39:53,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:39:53,400 INFO L225 Difference]: With dead ends: 32966 [2022-01-18 01:39:53,400 INFO L226 Difference]: Without dead ends: 29343 [2022-01-18 01:39:53,401 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-01-18 01:39:53,401 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 438 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 746 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:39:53,401 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [438 Valid, 746 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:39:53,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29343 states. [2022-01-18 01:39:54,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29343 to 29338. [2022-01-18 01:39:54,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29338 states, 29337 states have (on average 4.347172512526844) internal successors, (127533), 29337 states have internal predecessors, (127533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:54,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29338 states to 29338 states and 127533 transitions. [2022-01-18 01:39:54,259 INFO L78 Accepts]: Start accepts. Automaton has 29338 states and 127533 transitions. Word has length 212 [2022-01-18 01:39:54,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:39:54,260 INFO L470 AbstractCegarLoop]: Abstraction has 29338 states and 127533 transitions. [2022-01-18 01:39:54,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 35.0) internal successors, (210), 6 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:54,260 INFO L276 IsEmpty]: Start isEmpty. Operand 29338 states and 127533 transitions. [2022-01-18 01:39:54,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-01-18 01:39:54,507 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:39:54,507 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:39:54,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-18 01:39:54,507 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:39:54,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:39:54,508 INFO L85 PathProgramCache]: Analyzing trace with hash 2005935847, now seen corresponding path program 1 times [2022-01-18 01:39:54,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:39:54,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816721598] [2022-01-18 01:39:54,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:39:54,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:39:54,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:39:54,971 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 01:39:54,971 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:39:54,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816721598] [2022-01-18 01:39:54,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816721598] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 01:39:54,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [173925865] [2022-01-18 01:39:54,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:39:54,972 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:39:54,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:39:54,973 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 01:39:54,974 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-18 01:39:55,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:39:55,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 32 conjunts are in the unsatisfiable core [2022-01-18 01:39:55,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 01:39:56,150 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-18 01:39:56,150 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 01:39:56,235 INFO L353 Elim1Store]: treesize reduction 9, result has 43.8 percent of original size [2022-01-18 01:39:56,235 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 11 [2022-01-18 01:39:57,007 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-18 01:39:57,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [173925865] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 01:39:57,007 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 01:39:57,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18, 13] total 40 [2022-01-18 01:39:57,007 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211511190] [2022-01-18 01:39:57,007 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 01:39:57,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-01-18 01:39:57,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:39:57,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-01-18 01:39:57,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=259, Invalid=1301, Unknown=0, NotChecked=0, Total=1560 [2022-01-18 01:39:57,009 INFO L87 Difference]: Start difference. First operand 29338 states and 127533 transitions. Second operand has 40 states, 40 states have (on average 10.175) internal successors, (407), 40 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:40:01,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:40:01,204 INFO L93 Difference]: Finished difference Result 229702 states and 989038 transitions. [2022-01-18 01:40:01,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-01-18 01:40:01,204 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 10.175) internal successors, (407), 40 states have internal predecessors, (407), 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 219 [2022-01-18 01:40:01,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:40:03,369 INFO L225 Difference]: With dead ends: 229702 [2022-01-18 01:40:03,369 INFO L226 Difference]: Without dead ends: 226512 [2022-01-18 01:40:03,370 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 497 GetRequests, 412 SyntacticMatches, 7 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1879 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1118, Invalid=5202, Unknown=0, NotChecked=0, Total=6320 [2022-01-18 01:40:03,371 INFO L933 BasicCegarLoop]: 324 mSDtfsCounter, 3420 mSDsluCounter, 5762 mSDsCounter, 0 mSdLazyCounter, 1912 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3420 SdHoareTripleChecker+Valid, 5746 SdHoareTripleChecker+Invalid, 2029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 1912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 01:40:03,375 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3420 Valid, 5746 Invalid, 2029 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 1912 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 01:40:03,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226512 states. [2022-01-18 01:40:08,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226512 to 80495. [2022-01-18 01:40:08,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80495 states, 80494 states have (on average 4.56929709046637) internal successors, (367801), 80494 states have internal predecessors, (367801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:40:08,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80495 states to 80495 states and 367801 transitions. [2022-01-18 01:40:08,547 INFO L78 Accepts]: Start accepts. Automaton has 80495 states and 367801 transitions. Word has length 219 [2022-01-18 01:40:08,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:40:08,547 INFO L470 AbstractCegarLoop]: Abstraction has 80495 states and 367801 transitions. [2022-01-18 01:40:08,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 10.175) internal successors, (407), 40 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:40:08,547 INFO L276 IsEmpty]: Start isEmpty. Operand 80495 states and 367801 transitions. [2022-01-18 01:40:08,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-01-18 01:40:08,732 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:40:08,733 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:40:08,749 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-18 01:40:08,949 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,SelfDestructingSolverStorable13 [2022-01-18 01:40:08,950 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:40:08,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:40:08,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1969667416, now seen corresponding path program 1 times [2022-01-18 01:40:08,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:40:08,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298115806] [2022-01-18 01:40:08,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:40:08,951 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:40:08,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:40:09,040 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-01-18 01:40:09,040 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:40:09,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298115806] [2022-01-18 01:40:09,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298115806] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 01:40:09,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [459206688] [2022-01-18 01:40:09,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:40:09,041 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:40:09,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:40:09,056 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 01:40:09,094 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-18 01:40:09,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:40:09,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 14 conjunts are in the unsatisfiable core [2022-01-18 01:40:09,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 01:40:09,990 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-18 01:40:09,990 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 01:40:11,713 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-18 01:40:11,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [459206688] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 01:40:11,714 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 01:40:11,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 11, 11] total 21 [2022-01-18 01:40:11,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779039165] [2022-01-18 01:40:11,727 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 01:40:11,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-18 01:40:11,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:40:11,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-18 01:40:11,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2022-01-18 01:40:11,729 INFO L87 Difference]: Start difference. First operand 80495 states and 367801 transitions. Second operand has 21 states, 21 states have (on average 25.333333333333332) internal successors, (532), 21 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:40:15,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:40:15,387 INFO L93 Difference]: Finished difference Result 251581 states and 1137534 transitions. [2022-01-18 01:40:15,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 01:40:15,389 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 25.333333333333332) internal successors, (532), 21 states have internal predecessors, (532), 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 221 [2022-01-18 01:40:15,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:40:17,164 INFO L225 Difference]: With dead ends: 251581 [2022-01-18 01:40:17,164 INFO L226 Difference]: Without dead ends: 241317 [2022-01-18 01:40:17,165 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 458 GetRequests, 426 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 01:40:17,165 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 1666 mSDsluCounter, 2497 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1666 SdHoareTripleChecker+Valid, 2633 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 01:40:17,165 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1666 Valid, 2633 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 01:40:17,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241317 states. [2022-01-18 01:40:25,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241317 to 210026. [2022-01-18 01:40:25,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210026 states, 210025 states have (on average 4.619726223068683) internal successors, (970258), 210025 states have internal predecessors, (970258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:40:28,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210026 states to 210026 states and 970258 transitions. [2022-01-18 01:40:28,122 INFO L78 Accepts]: Start accepts. Automaton has 210026 states and 970258 transitions. Word has length 221 [2022-01-18 01:40:28,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:40:28,122 INFO L470 AbstractCegarLoop]: Abstraction has 210026 states and 970258 transitions. [2022-01-18 01:40:28,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 25.333333333333332) internal successors, (532), 21 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:40:28,122 INFO L276 IsEmpty]: Start isEmpty. Operand 210026 states and 970258 transitions. [2022-01-18 01:40:28,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 01:40:28,462 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:40:28,463 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:40:28,490 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-18 01:40:28,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:40:28,664 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:40:28,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:40:28,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1645767732, now seen corresponding path program 2 times [2022-01-18 01:40:28,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:40:28,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738464037] [2022-01-18 01:40:28,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:40:28,664 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:40:28,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:40:28,700 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 01:40:28,700 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:40:28,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738464037] [2022-01-18 01:40:28,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738464037] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 01:40:28,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [614813770] [2022-01-18 01:40:28,700 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 01:40:28,700 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:40:28,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:40:28,701 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 01:40:28,702 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-18 01:40:28,823 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 01:40:28,823 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 01:40:28,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-18 01:40:28,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 01:40:29,080 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-01-18 01:40:29,080 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-18 01:40:29,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [614813770] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:40:29,080 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-18 01:40:29,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-01-18 01:40:29,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117238387] [2022-01-18 01:40:29,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:40:29,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 01:40:29,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:40:29,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 01:40:29,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-18 01:40:29,082 INFO L87 Difference]: Start difference. First operand 210026 states and 970258 transitions. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:40:32,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:40:32,434 INFO L93 Difference]: Finished difference Result 238189 states and 1065423 transitions. [2022-01-18 01:40:32,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 01:40:32,434 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 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 223 [2022-01-18 01:40:32,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:40:34,722 INFO L225 Difference]: With dead ends: 238189 [2022-01-18 01:40:34,723 INFO L226 Difference]: Without dead ends: 238189 [2022-01-18 01:40:34,723 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-18 01:40:34,723 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 55 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 01:40:34,723 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 477 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 01:40:35,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238189 states. [2022-01-18 01:40:41,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238189 to 209694. [2022-01-18 01:40:41,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209694 states, 209693 states have (on average 4.526269355677109) internal successors, (949127), 209693 states have internal predecessors, (949127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:40:43,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209694 states to 209694 states and 949127 transitions. [2022-01-18 01:40:43,501 INFO L78 Accepts]: Start accepts. Automaton has 209694 states and 949127 transitions. Word has length 223 [2022-01-18 01:40:43,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:40:43,501 INFO L470 AbstractCegarLoop]: Abstraction has 209694 states and 949127 transitions. [2022-01-18 01:40:43,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:40:43,501 INFO L276 IsEmpty]: Start isEmpty. Operand 209694 states and 949127 transitions. [2022-01-18 01:40:43,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-01-18 01:40:43,954 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:40:43,954 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:40:43,970 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-18 01:40:44,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-01-18 01:40:44,155 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:40:44,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:40:44,156 INFO L85 PathProgramCache]: Analyzing trace with hash 505595805, now seen corresponding path program 1 times [2022-01-18 01:40:44,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:40:44,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581146702] [2022-01-18 01:40:44,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:40:44,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:40:44,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:40:44,257 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-18 01:40:44,257 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:40:44,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581146702] [2022-01-18 01:40:44,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581146702] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 01:40:44,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1681078687] [2022-01-18 01:40:44,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:40:44,258 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:40:44,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:40:44,259 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 01:40:44,260 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-18 01:40:44,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:40:44,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 9 conjunts are in the unsatisfiable core [2022-01-18 01:40:44,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 01:40:44,800 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 17 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-18 01:40:44,800 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 01:40:45,229 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-18 01:40:45,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1681078687] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 01:40:45,229 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 01:40:45,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2022-01-18 01:40:45,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962129823] [2022-01-18 01:40:45,229 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 01:40:45,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 01:40:45,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:40:45,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 01:40:45,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2022-01-18 01:40:45,230 INFO L87 Difference]: Start difference. First operand 209694 states and 949127 transitions. Second operand has 19 states, 19 states have (on average 16.473684210526315) internal successors, (313), 19 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:40:48,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:40:48,860 INFO L93 Difference]: Finished difference Result 210798 states and 952371 transitions. [2022-01-18 01:40:48,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 01:40:48,860 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 16.473684210526315) internal successors, (313), 19 states have internal predecessors, (313), 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 228 [2022-01-18 01:40:48,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:40:51,407 INFO L225 Difference]: With dead ends: 210798 [2022-01-18 01:40:51,407 INFO L226 Difference]: Without dead ends: 207167 [2022-01-18 01:40:51,408 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 473 GetRequests, 446 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=200, Invalid=612, Unknown=0, NotChecked=0, Total=812 [2022-01-18 01:40:51,408 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 880 mSDsluCounter, 1937 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 880 SdHoareTripleChecker+Valid, 2065 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 01:40:51,408 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [880 Valid, 2065 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 01:40:51,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207167 states. [2022-01-18 01:40:57,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207167 to 207162. [2022-01-18 01:40:57,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207162 states, 207161 states have (on average 4.538194930512983) internal successors, (940137), 207161 states have internal predecessors, (940137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:40:59,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207162 states to 207162 states and 940137 transitions. [2022-01-18 01:40:59,590 INFO L78 Accepts]: Start accepts. Automaton has 207162 states and 940137 transitions. Word has length 228 [2022-01-18 01:40:59,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:40:59,590 INFO L470 AbstractCegarLoop]: Abstraction has 207162 states and 940137 transitions. [2022-01-18 01:40:59,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 16.473684210526315) internal successors, (313), 19 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:40:59,591 INFO L276 IsEmpty]: Start isEmpty. Operand 207162 states and 940137 transitions. [2022-01-18 01:41:00,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-01-18 01:41:00,056 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:41:00,057 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:41:00,073 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-01-18 01:41:00,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-01-18 01:41:00,258 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:41:00,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:41:00,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1631137604, now seen corresponding path program 2 times [2022-01-18 01:41:00,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:41:00,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388027363] [2022-01-18 01:41:00,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:41:00,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:41:00,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:41:00,321 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-01-18 01:41:00,321 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:41:00,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388027363] [2022-01-18 01:41:00,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388027363] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:41:00,322 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:41:00,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 01:41:00,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873245425] [2022-01-18 01:41:00,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:41:00,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 01:41:00,322 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:41:00,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 01:41:00,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 01:41:00,323 INFO L87 Difference]: Start difference. First operand 207162 states and 940137 transitions. Second operand has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:41:03,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:41:03,220 INFO L93 Difference]: Finished difference Result 197654 states and 843805 transitions. [2022-01-18 01:41:03,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 01:41:03,220 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 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 232 [2022-01-18 01:41:03,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:41:04,369 INFO L225 Difference]: With dead ends: 197654 [2022-01-18 01:41:04,369 INFO L226 Difference]: Without dead ends: 194280 [2022-01-18 01:41:04,369 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 01:41:04,370 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 54 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 01:41:04,370 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 457 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 01:41:04,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194280 states. [2022-01-18 01:41:09,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194280 to 150196. [2022-01-18 01:41:09,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150196 states, 150195 states have (on average 4.303079330204068) internal successors, (646301), 150195 states have internal predecessors, (646301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:41:11,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150196 states to 150196 states and 646301 transitions. [2022-01-18 01:41:11,064 INFO L78 Accepts]: Start accepts. Automaton has 150196 states and 646301 transitions. Word has length 232 [2022-01-18 01:41:11,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:41:11,065 INFO L470 AbstractCegarLoop]: Abstraction has 150196 states and 646301 transitions. [2022-01-18 01:41:11,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:41:11,065 INFO L276 IsEmpty]: Start isEmpty. Operand 150196 states and 646301 transitions. [2022-01-18 01:41:11,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-01-18 01:41:11,247 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:41:11,247 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:41:11,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-18 01:41:11,247 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:41:11,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:41:11,248 INFO L85 PathProgramCache]: Analyzing trace with hash -918810044, now seen corresponding path program 2 times [2022-01-18 01:41:11,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:41:11,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658869966] [2022-01-18 01:41:11,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:41:11,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:41:11,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:41:11,337 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-18 01:41:11,338 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:41:11,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658869966] [2022-01-18 01:41:11,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658869966] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 01:41:11,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1559543338] [2022-01-18 01:41:11,338 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 01:41:11,338 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:41:11,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:41:11,339 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 01:41:11,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-01-18 01:41:11,472 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 01:41:11,472 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 01:41:11,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 559 conjuncts, 14 conjunts are in the unsatisfiable core [2022-01-18 01:41:11,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 01:41:12,071 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-01-18 01:41:12,071 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 01:41:12,875 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-01-18 01:41:12,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1559543338] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 01:41:12,876 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 01:41:12,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 11, 11] total 22 [2022-01-18 01:41:12,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529727369] [2022-01-18 01:41:12,876 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 01:41:12,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 01:41:12,877 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:41:12,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 01:41:12,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2022-01-18 01:41:12,878 INFO L87 Difference]: Start difference. First operand 150196 states and 646301 transitions. Second operand has 22 states, 22 states have (on average 18.681818181818183) internal successors, (411), 22 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:41:15,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:41:15,142 INFO L93 Difference]: Finished difference Result 191909 states and 793725 transitions. [2022-01-18 01:41:15,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 01:41:15,143 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 18.681818181818183) internal successors, (411), 22 states have internal predecessors, (411), 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 235 [2022-01-18 01:41:15,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:41:16,662 INFO L225 Difference]: With dead ends: 191909 [2022-01-18 01:41:16,662 INFO L226 Difference]: Without dead ends: 170239 [2022-01-18 01:41:16,665 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 488 GetRequests, 454 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=341, Invalid=919, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 01:41:16,665 INFO L933 BasicCegarLoop]: 256 mSDtfsCounter, 1578 mSDsluCounter, 1921 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1578 SdHoareTripleChecker+Valid, 2044 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 01:41:16,666 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1578 Valid, 2044 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 01:41:16,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170239 states. [2022-01-18 01:41:20,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170239 to 124168. [2022-01-18 01:41:20,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124168 states, 124167 states have (on average 4.262670435784065) internal successors, (529283), 124167 states have internal predecessors, (529283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:41:21,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124168 states to 124168 states and 529283 transitions. [2022-01-18 01:41:21,584 INFO L78 Accepts]: Start accepts. Automaton has 124168 states and 529283 transitions. Word has length 235 [2022-01-18 01:41:21,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:41:21,584 INFO L470 AbstractCegarLoop]: Abstraction has 124168 states and 529283 transitions. [2022-01-18 01:41:21,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 18.681818181818183) internal successors, (411), 22 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:41:21,584 INFO L276 IsEmpty]: Start isEmpty. Operand 124168 states and 529283 transitions. [2022-01-18 01:41:21,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-01-18 01:41:21,629 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:41:21,629 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:41:21,647 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-01-18 01:41:21,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:41:21,848 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:41:21,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:41:21,848 INFO L85 PathProgramCache]: Analyzing trace with hash -315004841, now seen corresponding path program 1 times [2022-01-18 01:41:21,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:41:21,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327929474] [2022-01-18 01:41:21,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:41:21,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:41:21,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:41:22,319 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-18 01:41:22,319 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:41:22,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327929474] [2022-01-18 01:41:22,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327929474] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 01:41:22,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [839823903] [2022-01-18 01:41:22,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:41:22,320 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:41:22,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:41:22,320 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 01:41:22,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-01-18 01:41:22,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:41:22,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 33 conjunts are in the unsatisfiable core [2022-01-18 01:41:22,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 01:41:23,663 INFO L353 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2022-01-18 01:41:23,663 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 20 [2022-01-18 01:41:23,734 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-18 01:41:23,734 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 01:41:23,812 INFO L353 Elim1Store]: treesize reduction 9, result has 43.8 percent of original size [2022-01-18 01:41:23,812 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 11 [2022-01-18 01:41:26,298 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-18 01:41:26,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [839823903] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 01:41:26,298 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 01:41:26,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 17, 17] total 46 [2022-01-18 01:41:26,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111769609] [2022-01-18 01:41:26,299 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 01:41:26,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-01-18 01:41:26,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:41:26,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-01-18 01:41:26,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=257, Invalid=1813, Unknown=0, NotChecked=0, Total=2070 [2022-01-18 01:41:26,300 INFO L87 Difference]: Start difference. First operand 124168 states and 529283 transitions. Second operand has 46 states, 46 states have (on average 12.869565217391305) internal successors, (592), 46 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:41:31,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:41:31,923 INFO L93 Difference]: Finished difference Result 351219 states and 1467567 transitions. [2022-01-18 01:41:31,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-01-18 01:41:31,923 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 12.869565217391305) internal successors, (592), 46 states have internal predecessors, (592), 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 237 [2022-01-18 01:41:31,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:41:34,766 INFO L225 Difference]: With dead ends: 351219 [2022-01-18 01:41:34,766 INFO L226 Difference]: Without dead ends: 337662 [2022-01-18 01:41:34,768 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 546 GetRequests, 445 SyntacticMatches, 5 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2443 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1354, Invalid=8152, Unknown=0, NotChecked=0, Total=9506 [2022-01-18 01:41:34,768 INFO L933 BasicCegarLoop]: 349 mSDtfsCounter, 3377 mSDsluCounter, 7872 mSDsCounter, 0 mSdLazyCounter, 1761 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3377 SdHoareTripleChecker+Valid, 7731 SdHoareTripleChecker+Invalid, 1890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 30 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 01:41:34,769 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3377 Valid, 7731 Invalid, 1890 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1761 Invalid, 0 Unknown, 30 Unchecked, 0.8s Time] [2022-01-18 01:41:35,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337662 states. [2022-01-18 01:41:43,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337662 to 202420. [2022-01-18 01:41:43,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202420 states, 202419 states have (on average 4.321254427697005) internal successors, (874704), 202419 states have internal predecessors, (874704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:41:45,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202420 states to 202420 states and 874704 transitions. [2022-01-18 01:41:45,170 INFO L78 Accepts]: Start accepts. Automaton has 202420 states and 874704 transitions. Word has length 237 [2022-01-18 01:41:45,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:41:45,171 INFO L470 AbstractCegarLoop]: Abstraction has 202420 states and 874704 transitions. [2022-01-18 01:41:45,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 12.869565217391305) internal successors, (592), 46 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:41:45,171 INFO L276 IsEmpty]: Start isEmpty. Operand 202420 states and 874704 transitions. [2022-01-18 01:41:45,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2022-01-18 01:41:45,233 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:41:45,233 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:41:45,251 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-01-18 01:41:45,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:41:45,449 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:41:45,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:41:45,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1118495046, now seen corresponding path program 1 times [2022-01-18 01:41:45,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:41:45,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254330034] [2022-01-18 01:41:45,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:41:45,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:41:45,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:41:45,521 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-01-18 01:41:45,521 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:41:45,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254330034] [2022-01-18 01:41:45,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254330034] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:41:45,521 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:41:45,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 01:41:45,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555655164] [2022-01-18 01:41:45,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:41:45,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 01:41:45,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:41:45,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 01:41:45,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-18 01:41:45,523 INFO L87 Difference]: Start difference. First operand 202420 states and 874704 transitions. Second operand has 6 states, 6 states have (on average 38.166666666666664) internal successors, (229), 6 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:41:47,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:41:47,687 INFO L93 Difference]: Finished difference Result 220830 states and 937536 transitions. [2022-01-18 01:41:47,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 01:41:47,688 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 38.166666666666664) internal successors, (229), 6 states have internal predecessors, (229), 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 249 [2022-01-18 01:41:47,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:41:49,802 INFO L225 Difference]: With dead ends: 220830 [2022-01-18 01:41:49,803 INFO L226 Difference]: Without dead ends: 211560 [2022-01-18 01:41:49,803 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:41:49,804 INFO L933 BasicCegarLoop]: 218 mSDtfsCounter, 218 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 740 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:41:49,807 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [218 Valid, 740 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:41:50,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211560 states. [2022-01-18 01:41:55,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211560 to 204316. [2022-01-18 01:41:56,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204316 states, 204315 states have (on average 4.310980593691114) internal successors, (880798), 204315 states have internal predecessors, (880798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:41:57,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204316 states to 204316 states and 880798 transitions. [2022-01-18 01:41:57,750 INFO L78 Accepts]: Start accepts. Automaton has 204316 states and 880798 transitions. Word has length 249 [2022-01-18 01:41:57,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:41:57,751 INFO L470 AbstractCegarLoop]: Abstraction has 204316 states and 880798 transitions. [2022-01-18 01:41:57,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 38.166666666666664) internal successors, (229), 6 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:41:57,751 INFO L276 IsEmpty]: Start isEmpty. Operand 204316 states and 880798 transitions. [2022-01-18 01:41:57,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-01-18 01:41:57,808 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:41:57,808 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:41:57,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-18 01:41:57,808 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:41:57,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:41:57,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1301128136, now seen corresponding path program 2 times [2022-01-18 01:41:57,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:41:57,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140636741] [2022-01-18 01:41:57,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:41:57,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:41:57,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:41:57,850 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-01-18 01:41:57,850 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:41:57,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140636741] [2022-01-18 01:41:57,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140636741] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:41:57,850 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:41:57,850 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 01:41:57,850 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752863435] [2022-01-18 01:41:57,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:41:57,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 01:41:57,851 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:41:57,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 01:41:57,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 01:41:57,851 INFO L87 Difference]: Start difference. First operand 204316 states and 880798 transitions. Second operand has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:42:00,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:42:00,629 INFO L93 Difference]: Finished difference Result 208802 states and 864973 transitions. [2022-01-18 01:42:00,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 01:42:00,629 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 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 253 [2022-01-18 01:42:00,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:42:01,798 INFO L225 Difference]: With dead ends: 208802 [2022-01-18 01:42:01,799 INFO L226 Difference]: Without dead ends: 202404 [2022-01-18 01:42:01,799 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 01:42:01,799 INFO L933 BasicCegarLoop]: 261 mSDtfsCounter, 47 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 01:42:01,800 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 476 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 01:42:02,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202404 states. [2022-01-18 01:42:06,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202404 to 173601. [2022-01-18 01:42:06,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173601 states, 173600 states have (on average 4.170944700460829) internal successors, (724076), 173600 states have internal predecessors, (724076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:42:08,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173601 states to 173601 states and 724076 transitions. [2022-01-18 01:42:08,070 INFO L78 Accepts]: Start accepts. Automaton has 173601 states and 724076 transitions. Word has length 253 [2022-01-18 01:42:08,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:42:08,070 INFO L470 AbstractCegarLoop]: Abstraction has 173601 states and 724076 transitions. [2022-01-18 01:42:08,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:42:08,070 INFO L276 IsEmpty]: Start isEmpty. Operand 173601 states and 724076 transitions. [2022-01-18 01:42:08,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2022-01-18 01:42:08,109 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:42:08,110 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:42:08,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-18 01:42:08,110 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:42:08,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:42:08,110 INFO L85 PathProgramCache]: Analyzing trace with hash 755913321, now seen corresponding path program 1 times [2022-01-18 01:42:08,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:42:08,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792295018] [2022-01-18 01:42:08,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:42:08,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:42:08,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:42:08,228 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-01-18 01:42:08,228 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:42:08,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792295018] [2022-01-18 01:42:08,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792295018] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 01:42:08,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [150020896] [2022-01-18 01:42:08,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:42:08,228 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:42:08,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:42:08,229 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 01:42:08,230 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-01-18 01:42:08,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:42:08,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 607 conjuncts, 13 conjunts are in the unsatisfiable core [2022-01-18 01:42:08,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 01:42:08,750 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-01-18 01:42:08,750 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 01:42:09,124 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-01-18 01:42:09,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [150020896] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 01:42:09,124 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 01:42:09,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2022-01-18 01:42:09,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843007750] [2022-01-18 01:42:09,124 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 01:42:09,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 01:42:09,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:42:09,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 01:42:09,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2022-01-18 01:42:09,125 INFO L87 Difference]: Start difference. First operand 173601 states and 724076 transitions. Second operand has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:42:11,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:42:11,611 INFO L93 Difference]: Finished difference Result 185727 states and 764388 transitions. [2022-01-18 01:42:11,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 01:42:11,611 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 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 256 [2022-01-18 01:42:11,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:42:12,504 INFO L225 Difference]: With dead ends: 185727 [2022-01-18 01:42:12,504 INFO L226 Difference]: Without dead ends: 173625 [2022-01-18 01:42:12,504 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 529 GetRequests, 503 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=194, Invalid=562, Unknown=0, NotChecked=0, Total=756 [2022-01-18 01:42:12,505 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 916 mSDsluCounter, 2177 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 916 SdHoareTripleChecker+Valid, 2256 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 01:42:12,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [916 Valid, 2256 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 01:42:12,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173625 states. [2022-01-18 01:42:16,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173625 to 173615. [2022-01-18 01:42:17,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173615 states, 173614 states have (on average 4.170688999735044) internal successors, (724090), 173614 states have internal predecessors, (724090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:42:18,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173615 states to 173615 states and 724090 transitions. [2022-01-18 01:42:18,511 INFO L78 Accepts]: Start accepts. Automaton has 173615 states and 724090 transitions. Word has length 256 [2022-01-18 01:42:18,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:42:18,512 INFO L470 AbstractCegarLoop]: Abstraction has 173615 states and 724090 transitions. [2022-01-18 01:42:18,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:42:18,512 INFO L276 IsEmpty]: Start isEmpty. Operand 173615 states and 724090 transitions. [2022-01-18 01:42:18,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-01-18 01:42:18,552 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:42:18,552 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:42:18,568 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-01-18 01:42:18,757 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,SelfDestructingSolverStorable22 [2022-01-18 01:42:18,757 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:42:18,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:42:18,757 INFO L85 PathProgramCache]: Analyzing trace with hash -169679898, now seen corresponding path program 2 times [2022-01-18 01:42:18,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:42:18,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560564806] [2022-01-18 01:42:18,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:42:18,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:42:18,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:42:19,391 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-01-18 01:42:19,392 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:42:19,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560564806] [2022-01-18 01:42:19,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560564806] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 01:42:19,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1093532009] [2022-01-18 01:42:19,392 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 01:42:19,392 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:42:19,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:42:19,394 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 01:42:19,395 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-01-18 01:42:19,528 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 01:42:19,528 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 01:42:19,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 620 conjuncts, 33 conjunts are in the unsatisfiable core [2022-01-18 01:42:19,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 01:42:20,345 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-01-18 01:42:20,345 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 01:42:20,467 INFO L353 Elim1Store]: treesize reduction 9, result has 43.8 percent of original size [2022-01-18 01:42:20,467 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 11 [2022-01-18 01:42:21,925 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-01-18 01:42:21,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1093532009] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 01:42:21,926 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 01:42:21,926 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 15, 15] total 43 [2022-01-18 01:42:21,926 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907173717] [2022-01-18 01:42:21,926 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 01:42:21,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-01-18 01:42:21,926 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:42:21,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-01-18 01:42:21,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=239, Invalid=1567, Unknown=0, NotChecked=0, Total=1806 [2022-01-18 01:42:21,928 INFO L87 Difference]: Start difference. First operand 173615 states and 724090 transitions. Second operand has 43 states, 43 states have (on average 13.13953488372093) internal successors, (565), 43 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:42:27,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:42:27,059 INFO L93 Difference]: Finished difference Result 349718 states and 1443370 transitions. [2022-01-18 01:42:27,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 01:42:27,060 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 13.13953488372093) internal successors, (565), 43 states have internal predecessors, (565), 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 263 [2022-01-18 01:42:27,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:42:29,685 INFO L225 Difference]: With dead ends: 349718 [2022-01-18 01:42:29,686 INFO L226 Difference]: Without dead ends: 336376 [2022-01-18 01:42:29,687 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 583 GetRequests, 505 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1548 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1223, Invalid=5097, Unknown=0, NotChecked=0, Total=6320 [2022-01-18 01:42:29,687 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 3042 mSDsluCounter, 5332 mSDsCounter, 0 mSdLazyCounter, 1668 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3042 SdHoareTripleChecker+Valid, 5327 SdHoareTripleChecker+Invalid, 1747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 01:42:29,687 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3042 Valid, 5327 Invalid, 1747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 1668 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 01:42:30,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336376 states. [2022-01-18 01:42:36,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336376 to 178711. [2022-01-18 01:42:36,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178711 states, 178710 states have (on average 4.152946113815679) internal successors, (742173), 178710 states have internal predecessors, (742173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:42:37,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178711 states to 178711 states and 742173 transitions. [2022-01-18 01:42:37,700 INFO L78 Accepts]: Start accepts. Automaton has 178711 states and 742173 transitions. Word has length 263 [2022-01-18 01:42:37,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:42:37,700 INFO L470 AbstractCegarLoop]: Abstraction has 178711 states and 742173 transitions. [2022-01-18 01:42:37,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 13.13953488372093) internal successors, (565), 43 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:42:37,700 INFO L276 IsEmpty]: Start isEmpty. Operand 178711 states and 742173 transitions. [2022-01-18 01:42:38,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2022-01-18 01:42:38,449 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:42:38,449 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:42:38,466 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-01-18 01:42:38,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-01-18 01:42:38,666 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:42:38,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:42:38,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1203948011, now seen corresponding path program 3 times [2022-01-18 01:42:38,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:42:38,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001582875] [2022-01-18 01:42:38,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:42:38,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:42:38,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:42:39,288 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 1 proven. 74 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-18 01:42:39,288 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:42:39,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001582875] [2022-01-18 01:42:39,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001582875] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 01:42:39,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1491882888] [2022-01-18 01:42:39,289 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-18 01:42:39,289 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:42:39,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:42:39,290 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 01:42:39,290 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-01-18 01:42:39,492 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-01-18 01:42:39,493 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 01:42:39,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 629 conjuncts, 44 conjunts are in the unsatisfiable core [2022-01-18 01:42:39,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 01:42:40,333 INFO L353 Elim1Store]: treesize reduction 14, result has 17.6 percent of original size [2022-01-18 01:42:40,333 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 20 [2022-01-18 01:42:40,374 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 39 proven. 33 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-01-18 01:42:40,374 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 01:42:40,466 INFO L353 Elim1Store]: treesize reduction 9, result has 43.8 percent of original size [2022-01-18 01:42:40,467 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 11 [2022-01-18 01:42:41,194 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-01-18 01:42:41,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1491882888] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 01:42:41,194 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 01:42:41,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 18, 18] total 53 [2022-01-18 01:42:41,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275759587] [2022-01-18 01:42:41,194 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 01:42:41,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-01-18 01:42:41,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:42:41,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-01-18 01:42:41,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=298, Invalid=2458, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 01:42:41,196 INFO L87 Difference]: Start difference. First operand 178711 states and 742173 transitions. Second operand has 53 states, 53 states have (on average 10.924528301886792) internal successors, (579), 53 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:42:51,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:42:51,239 INFO L93 Difference]: Finished difference Result 561794 states and 2256588 transitions. [2022-01-18 01:42:51,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-01-18 01:42:51,239 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 10.924528301886792) internal successors, (579), 53 states have internal predecessors, (579), 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 278 [2022-01-18 01:42:51,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:42:56,409 INFO L225 Difference]: With dead ends: 561794 [2022-01-18 01:42:56,409 INFO L226 Difference]: Without dead ends: 499030 [2022-01-18 01:42:56,412 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 645 GetRequests, 533 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3092 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1939, Invalid=10943, Unknown=0, NotChecked=0, Total=12882 [2022-01-18 01:42:56,413 INFO L933 BasicCegarLoop]: 458 mSDtfsCounter, 3688 mSDsluCounter, 12105 mSDsCounter, 0 mSdLazyCounter, 2796 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3688 SdHoareTripleChecker+Valid, 11728 SdHoareTripleChecker+Invalid, 3232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 2796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 311 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-18 01:42:56,414 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3688 Valid, 11728 Invalid, 3232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 2796 Invalid, 0 Unknown, 311 Unchecked, 1.3s Time] [2022-01-18 01:42:57,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499030 states. [2022-01-18 01:43:09,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499030 to 328549. [2022-01-18 01:43:10,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328549 states, 328548 states have (on average 4.12028075045351) internal successors, (1353710), 328548 states have internal predecessors, (1353710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:43:12,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328549 states to 328549 states and 1353710 transitions. [2022-01-18 01:43:12,770 INFO L78 Accepts]: Start accepts. Automaton has 328549 states and 1353710 transitions. Word has length 278 [2022-01-18 01:43:12,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:43:12,770 INFO L470 AbstractCegarLoop]: Abstraction has 328549 states and 1353710 transitions. [2022-01-18 01:43:12,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 10.924528301886792) internal successors, (579), 53 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:43:12,770 INFO L276 IsEmpty]: Start isEmpty. Operand 328549 states and 1353710 transitions. [2022-01-18 01:43:12,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2022-01-18 01:43:12,950 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:43:12,950 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:43:12,966 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-01-18 01:43:13,150 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,SelfDestructingSolverStorable24 [2022-01-18 01:43:13,153 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:43:13,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:43:13,153 INFO L85 PathProgramCache]: Analyzing trace with hash -781162244, now seen corresponding path program 4 times [2022-01-18 01:43:13,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:43:13,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712365227] [2022-01-18 01:43:13,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:43:13,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:43:13,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:43:14,537 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-18 01:43:14,538 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:43:14,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712365227] [2022-01-18 01:43:14,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712365227] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 01:43:14,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [447241071] [2022-01-18 01:43:14,538 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-18 01:43:14,538 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:43:14,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:43:14,539 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 01:43:14,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-01-18 01:43:14,719 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-18 01:43:14,719 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 01:43:14,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 675 conjuncts, 40 conjunts are in the unsatisfiable core [2022-01-18 01:43:14,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 01:43:15,714 INFO L353 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2022-01-18 01:43:15,715 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 20 [2022-01-18 01:43:15,759 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-01-18 01:43:15,759 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 01:43:15,854 INFO L353 Elim1Store]: treesize reduction 9, result has 43.8 percent of original size [2022-01-18 01:43:15,855 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 11 [2022-01-18 01:43:16,700 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-01-18 01:43:16,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [447241071] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 01:43:16,701 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 01:43:16,701 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 15, 8] total 41 [2022-01-18 01:43:16,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523928270] [2022-01-18 01:43:16,701 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 01:43:16,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-01-18 01:43:16,702 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:43:16,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-01-18 01:43:16,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=1506, Unknown=0, NotChecked=0, Total=1640 [2022-01-18 01:43:16,702 INFO L87 Difference]: Start difference. First operand 328549 states and 1353710 transitions. Second operand has 41 states, 41 states have (on average 12.414634146341463) internal successors, (509), 41 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:43:27,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:43:27,455 INFO L93 Difference]: Finished difference Result 614931 states and 2482625 transitions. [2022-01-18 01:43:27,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-01-18 01:43:27,455 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 12.414634146341463) internal successors, (509), 41 states have internal predecessors, (509), 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 285 [2022-01-18 01:43:27,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:43:31,765 INFO L225 Difference]: With dead ends: 614931 [2022-01-18 01:43:31,765 INFO L226 Difference]: Without dead ends: 600177 [2022-01-18 01:43:31,766 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 680 GetRequests, 556 SyntacticMatches, 2 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 4332 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=1460, Invalid=13792, Unknown=0, NotChecked=0, Total=15252 [2022-01-18 01:43:31,766 INFO L933 BasicCegarLoop]: 376 mSDtfsCounter, 2829 mSDsluCounter, 10255 mSDsCounter, 0 mSdLazyCounter, 3188 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2829 SdHoareTripleChecker+Valid, 9829 SdHoareTripleChecker+Invalid, 3519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 3188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 197 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-18 01:43:31,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2829 Valid, 9829 Invalid, 3519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 3188 Invalid, 0 Unknown, 197 Unchecked, 1.4s Time] [2022-01-18 01:43:33,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600177 states. [2022-01-18 01:43:45,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600177 to 328104. [2022-01-18 01:43:46,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328104 states, 328103 states have (on average 4.139995672090777) internal successors, (1358345), 328103 states have internal predecessors, (1358345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:43:49,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328104 states to 328104 states and 1358345 transitions. [2022-01-18 01:43:49,329 INFO L78 Accepts]: Start accepts. Automaton has 328104 states and 1358345 transitions. Word has length 285 [2022-01-18 01:43:49,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:43:49,330 INFO L470 AbstractCegarLoop]: Abstraction has 328104 states and 1358345 transitions. [2022-01-18 01:43:49,330 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 12.414634146341463) internal successors, (509), 41 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:43:49,330 INFO L276 IsEmpty]: Start isEmpty. Operand 328104 states and 1358345 transitions. [2022-01-18 01:43:49,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-01-18 01:43:49,476 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:43:49,476 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:43:49,494 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-01-18 01:43:49,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-01-18 01:43:49,679 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:43:49,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:43:49,679 INFO L85 PathProgramCache]: Analyzing trace with hash -280151965, now seen corresponding path program 5 times [2022-01-18 01:43:49,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:43:49,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585264971] [2022-01-18 01:43:49,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:43:49,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:43:49,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:43:49,763 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 4 proven. 19 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2022-01-18 01:43:49,764 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:43:49,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585264971] [2022-01-18 01:43:49,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585264971] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 01:43:49,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [265544893] [2022-01-18 01:43:49,764 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-01-18 01:43:49,764 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:43:49,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:43:49,780 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 01:43:49,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-01-18 01:43:50,091 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2022-01-18 01:43:50,092 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 01:43:50,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 676 conjuncts, 9 conjunts are in the unsatisfiable core [2022-01-18 01:43:50,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 01:43:50,444 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-01-18 01:43:50,444 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 01:43:51,111 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 4 proven. 19 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2022-01-18 01:43:51,111 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [265544893] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 01:43:51,111 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 01:43:51,111 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 5] total 8 [2022-01-18 01:43:51,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969889992] [2022-01-18 01:43:51,112 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 01:43:51,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 01:43:51,112 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:43:51,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 01:43:51,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-18 01:43:51,113 INFO L87 Difference]: Start difference. First operand 328104 states and 1358345 transitions. Second operand has 8 states, 8 states have (on average 49.375) internal successors, (395), 8 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:43:51,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:43:51,320 INFO L93 Difference]: Finished difference Result 41321 states and 142732 transitions. [2022-01-18 01:43:51,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 01:43:51,320 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 49.375) internal successors, (395), 8 states have internal predecessors, (395), 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 286 [2022-01-18 01:43:51,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:43:51,394 INFO L225 Difference]: With dead ends: 41321 [2022-01-18 01:43:51,394 INFO L226 Difference]: Without dead ends: 24807 [2022-01-18 01:43:51,395 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 576 GetRequests, 569 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-01-18 01:43:51,395 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 602 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 602 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 01:43:51,395 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [602 Valid, 482 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 01:43:51,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24807 states. [2022-01-18 01:43:51,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24807 to 14385. [2022-01-18 01:43:51,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14385 states, 14384 states have (on average 3.3701334816462736) internal successors, (48476), 14384 states have internal predecessors, (48476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:43:52,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14385 states to 14385 states and 48476 transitions. [2022-01-18 01:43:52,010 INFO L78 Accepts]: Start accepts. Automaton has 14385 states and 48476 transitions. Word has length 286 [2022-01-18 01:43:52,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:43:52,010 INFO L470 AbstractCegarLoop]: Abstraction has 14385 states and 48476 transitions. [2022-01-18 01:43:52,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 49.375) internal successors, (395), 8 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:43:52,010 INFO L276 IsEmpty]: Start isEmpty. Operand 14385 states and 48476 transitions. [2022-01-18 01:43:52,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2022-01-18 01:43:52,033 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:43:52,033 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:43:52,052 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-01-18 01:43:52,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-01-18 01:43:52,235 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:43:52,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:43:52,236 INFO L85 PathProgramCache]: Analyzing trace with hash -138324772, now seen corresponding path program 6 times [2022-01-18 01:43:52,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:43:52,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314621921] [2022-01-18 01:43:52,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:43:52,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:43:52,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:43:52,703 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 3 proven. 75 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2022-01-18 01:43:52,704 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:43:52,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314621921] [2022-01-18 01:43:52,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314621921] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 01:43:52,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1641649464] [2022-01-18 01:43:52,704 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-01-18 01:43:52,704 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:43:52,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:43:52,705 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 01:43:52,705 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-01-18 01:43:52,853 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2022-01-18 01:43:52,853 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 01:43:52,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 18 conjunts are in the unsatisfiable core [2022-01-18 01:43:52,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 01:43:53,465 INFO L353 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2022-01-18 01:43:53,465 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 20 [2022-01-18 01:43:53,500 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-01-18 01:43:53,500 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 01:43:53,590 INFO L353 Elim1Store]: treesize reduction 9, result has 43.8 percent of original size [2022-01-18 01:43:53,590 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 11 [2022-01-18 01:43:54,081 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-01-18 01:43:54,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1641649464] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 01:43:54,081 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 01:43:54,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 8, 8] total 28 [2022-01-18 01:43:54,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769055925] [2022-01-18 01:43:54,081 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 01:43:54,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 01:43:54,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:43:54,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 01:43:54,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2022-01-18 01:43:54,082 INFO L87 Difference]: Start difference. First operand 14385 states and 48476 transitions. Second operand has 28 states, 28 states have (on average 14.178571428571429) internal successors, (397), 28 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:43:56,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:43:56,047 INFO L93 Difference]: Finished difference Result 39238 states and 130680 transitions. [2022-01-18 01:43:56,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 01:43:56,047 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 14.178571428571429) internal successors, (397), 28 states have internal predecessors, (397), 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 294 [2022-01-18 01:43:56,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:43:56,097 INFO L225 Difference]: With dead ends: 39238 [2022-01-18 01:43:56,097 INFO L226 Difference]: Without dead ends: 18722 [2022-01-18 01:43:56,098 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 646 GetRequests, 582 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 819 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=573, Invalid=3459, Unknown=0, NotChecked=0, Total=4032 [2022-01-18 01:43:56,098 INFO L933 BasicCegarLoop]: 363 mSDtfsCounter, 1599 mSDsluCounter, 6490 mSDsCounter, 0 mSdLazyCounter, 1380 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1599 SdHoareTripleChecker+Valid, 6354 SdHoareTripleChecker+Invalid, 1401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 01:43:56,098 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1599 Valid, 6354 Invalid, 1401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1380 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 01:43:56,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18722 states. [2022-01-18 01:43:56,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18722 to 14669. [2022-01-18 01:43:56,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14669 states, 14668 states have (on average 3.3468093809653667) internal successors, (49091), 14668 states have internal predecessors, (49091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:43:56,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14669 states to 14669 states and 49091 transitions. [2022-01-18 01:43:56,400 INFO L78 Accepts]: Start accepts. Automaton has 14669 states and 49091 transitions. Word has length 294 [2022-01-18 01:43:56,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:43:56,400 INFO L470 AbstractCegarLoop]: Abstraction has 14669 states and 49091 transitions. [2022-01-18 01:43:56,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 14.178571428571429) internal successors, (397), 28 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:43:56,400 INFO L276 IsEmpty]: Start isEmpty. Operand 14669 states and 49091 transitions. [2022-01-18 01:43:56,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2022-01-18 01:43:56,427 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:43:56,427 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 6, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:43:56,453 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-01-18 01:43:56,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-01-18 01:43:56,628 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:43:56,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:43:56,629 INFO L85 PathProgramCache]: Analyzing trace with hash 133511001, now seen corresponding path program 7 times [2022-01-18 01:43:56,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:43:56,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772340838] [2022-01-18 01:43:56,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:43:56,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:43:56,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:43:56,772 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 119 proven. 61 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-01-18 01:43:56,772 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:43:56,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772340838] [2022-01-18 01:43:56,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772340838] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 01:43:56,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [734313764] [2022-01-18 01:43:56,772 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-01-18 01:43:56,773 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:43:56,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:43:56,773 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 01:43:56,775 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-01-18 01:43:56,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:43:56,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 783 conjuncts, 15 conjunts are in the unsatisfiable core [2022-01-18 01:43:56,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 01:43:57,781 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 156 proven. 24 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-01-18 01:43:57,781 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 01:43:58,537 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 69 proven. 111 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-01-18 01:43:58,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [734313764] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 01:43:58,537 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 01:43:58,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 37 [2022-01-18 01:43:58,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839488668] [2022-01-18 01:43:58,537 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 01:43:58,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-01-18 01:43:58,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:43:58,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-01-18 01:43:58,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=235, Invalid=1097, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 01:43:58,539 INFO L87 Difference]: Start difference. First operand 14669 states and 49091 transitions. Second operand has 37 states, 37 states have (on average 12.64864864864865) internal successors, (468), 37 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:43:59,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:43:59,190 INFO L93 Difference]: Finished difference Result 26005 states and 86603 transitions. [2022-01-18 01:43:59,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 01:43:59,191 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 12.64864864864865) internal successors, (468), 37 states have internal predecessors, (468), 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 324 [2022-01-18 01:43:59,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:43:59,358 INFO L225 Difference]: With dead ends: 26005 [2022-01-18 01:43:59,359 INFO L226 Difference]: Without dead ends: 14681 [2022-01-18 01:43:59,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 683 GetRequests, 626 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1061 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=654, Invalid=2768, Unknown=0, NotChecked=0, Total=3422 [2022-01-18 01:43:59,359 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 1321 mSDsluCounter, 3123 mSDsCounter, 0 mSdLazyCounter, 715 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1321 SdHoareTripleChecker+Valid, 3222 SdHoareTripleChecker+Invalid, 795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 01:43:59,359 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1321 Valid, 3222 Invalid, 795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 715 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 01:43:59,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14681 states. [2022-01-18 01:43:59,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14681 to 14676. [2022-01-18 01:43:59,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14676 states, 14675 states have (on average 3.345689948892675) internal successors, (49098), 14675 states have internal predecessors, (49098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:43:59,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14676 states to 14676 states and 49098 transitions. [2022-01-18 01:43:59,590 INFO L78 Accepts]: Start accepts. Automaton has 14676 states and 49098 transitions. Word has length 324 [2022-01-18 01:43:59,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:43:59,590 INFO L470 AbstractCegarLoop]: Abstraction has 14676 states and 49098 transitions. [2022-01-18 01:43:59,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 12.64864864864865) internal successors, (468), 37 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:43:59,590 INFO L276 IsEmpty]: Start isEmpty. Operand 14676 states and 49098 transitions. [2022-01-18 01:43:59,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2022-01-18 01:43:59,616 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:43:59,616 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:43:59,639 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-01-18 01:43:59,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:43:59,817 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:43:59,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:43:59,817 INFO L85 PathProgramCache]: Analyzing trace with hash -593924608, now seen corresponding path program 8 times [2022-01-18 01:43:59,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:43:59,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780612125] [2022-01-18 01:43:59,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:43:59,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:43:59,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:44:00,439 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 3 proven. 141 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-01-18 01:44:00,439 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:44:00,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780612125] [2022-01-18 01:44:00,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780612125] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 01:44:00,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [740605813] [2022-01-18 01:44:00,439 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 01:44:00,440 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:44:00,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:44:00,440 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 01:44:00,441 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-01-18 01:44:00,635 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 01:44:00,635 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 01:44:00,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 796 conjuncts, 41 conjunts are in the unsatisfiable core [2022-01-18 01:44:00,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 01:44:02,498 INFO L353 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2022-01-18 01:44:02,499 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 20 [2022-01-18 01:44:02,543 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 0 proven. 141 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2022-01-18 01:44:02,543 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 01:44:02,697 INFO L353 Elim1Store]: treesize reduction 9, result has 43.8 percent of original size [2022-01-18 01:44:02,697 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 11 [2022-01-18 01:44:06,626 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 0 proven. 141 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2022-01-18 01:44:06,627 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [740605813] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 01:44:06,627 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 01:44:06,627 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 19, 19] total 54 [2022-01-18 01:44:06,627 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959244571] [2022-01-18 01:44:06,627 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 01:44:06,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-01-18 01:44:06,628 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:44:06,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-01-18 01:44:06,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=2511, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 01:44:06,629 INFO L87 Difference]: Start difference. First operand 14676 states and 49098 transitions. Second operand has 54 states, 54 states have (on average 12.314814814814815) internal successors, (665), 54 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:44:09,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:44:09,347 INFO L93 Difference]: Finished difference Result 32572 states and 108747 transitions. [2022-01-18 01:44:09,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-01-18 01:44:09,347 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 54 states have (on average 12.314814814814815) internal successors, (665), 54 states have internal predecessors, (665), 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 331 [2022-01-18 01:44:09,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:44:09,442 INFO L225 Difference]: With dead ends: 32572 [2022-01-18 01:44:09,443 INFO L226 Difference]: Without dead ends: 30858 [2022-01-18 01:44:09,444 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 736 GetRequests, 635 SyntacticMatches, 4 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2261 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1601, Invalid=8101, Unknown=0, NotChecked=0, Total=9702 [2022-01-18 01:44:09,445 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 2703 mSDsluCounter, 6551 mSDsCounter, 0 mSdLazyCounter, 1425 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2703 SdHoareTripleChecker+Valid, 6428 SdHoareTripleChecker+Invalid, 1600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 1425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 98 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 01:44:09,445 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2703 Valid, 6428 Invalid, 1600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 1425 Invalid, 0 Unknown, 98 Unchecked, 0.7s Time] [2022-01-18 01:44:09,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30858 states. [2022-01-18 01:44:10,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30858 to 28117. [2022-01-18 01:44:10,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28117 states, 28116 states have (on average 3.3559183383127045) internal successors, (94355), 28116 states have internal predecessors, (94355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:44:10,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28117 states to 28117 states and 94355 transitions. [2022-01-18 01:44:10,124 INFO L78 Accepts]: Start accepts. Automaton has 28117 states and 94355 transitions. Word has length 331 [2022-01-18 01:44:10,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:44:10,124 INFO L470 AbstractCegarLoop]: Abstraction has 28117 states and 94355 transitions. [2022-01-18 01:44:10,124 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 12.314814814814815) internal successors, (665), 54 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:44:10,124 INFO L276 IsEmpty]: Start isEmpty. Operand 28117 states and 94355 transitions. [2022-01-18 01:44:10,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2022-01-18 01:44:10,183 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:44:10,185 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:44:10,210 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2022-01-18 01:44:10,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:44:10,391 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:44:10,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:44:10,391 INFO L85 PathProgramCache]: Analyzing trace with hash 536409960, now seen corresponding path program 9 times [2022-01-18 01:44:10,391 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:44:10,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196868688] [2022-01-18 01:44:10,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:44:10,392 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:44:10,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:44:11,073 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 3 proven. 141 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-01-18 01:44:11,073 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:44:11,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196868688] [2022-01-18 01:44:11,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196868688] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 01:44:11,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [679781406] [2022-01-18 01:44:11,073 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-18 01:44:11,073 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:44:11,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:44:11,074 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 01:44:11,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-01-18 01:44:11,433 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-01-18 01:44:11,433 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 01:44:11,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 720 conjuncts, 42 conjunts are in the unsatisfiable core [2022-01-18 01:44:11,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 01:44:12,819 INFO L353 Elim1Store]: treesize reduction 48, result has 5.9 percent of original size [2022-01-18 01:44:12,820 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 71 treesize of output 23 [2022-01-18 01:44:12,857 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 104 proven. 28 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2022-01-18 01:44:12,857 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 01:44:13,607 INFO L353 Elim1Store]: treesize reduction 34, result has 30.6 percent of original size [2022-01-18 01:44:13,608 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 22 [2022-01-18 01:44:14,299 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 5 proven. 127 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2022-01-18 01:44:14,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [679781406] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 01:44:14,300 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 01:44:14,300 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 17, 17] total 50 [2022-01-18 01:44:14,300 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310057802] [2022-01-18 01:44:14,300 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 01:44:14,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-01-18 01:44:14,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:44:14,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-01-18 01:44:14,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=295, Invalid=2155, Unknown=0, NotChecked=0, Total=2450 [2022-01-18 01:44:14,301 INFO L87 Difference]: Start difference. First operand 28117 states and 94355 transitions. Second operand has 50 states, 50 states have (on average 11.3) internal successors, (565), 50 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:44:16,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:44:16,176 INFO L93 Difference]: Finished difference Result 35544 states and 115342 transitions. [2022-01-18 01:44:16,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-01-18 01:44:16,176 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 11.3) internal successors, (565), 50 states have internal predecessors, (565), 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 331 [2022-01-18 01:44:16,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:44:16,279 INFO L225 Difference]: With dead ends: 35544 [2022-01-18 01:44:16,280 INFO L226 Difference]: Without dead ends: 35530 [2022-01-18 01:44:16,280 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 732 GetRequests, 645 SyntacticMatches, 1 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1768 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1215, Invalid=6441, Unknown=0, NotChecked=0, Total=7656 [2022-01-18 01:44:16,281 INFO L933 BasicCegarLoop]: 282 mSDtfsCounter, 3009 mSDsluCounter, 5533 mSDsCounter, 0 mSdLazyCounter, 870 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3009 SdHoareTripleChecker+Valid, 5598 SdHoareTripleChecker+Invalid, 1110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 870 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 177 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 01:44:16,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3009 Valid, 5598 Invalid, 1110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 870 Invalid, 0 Unknown, 177 Unchecked, 0.4s Time] [2022-01-18 01:44:16,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35530 states. [2022-01-18 01:44:16,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35530 to 31505. [2022-01-18 01:44:16,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31505 states, 31504 states have (on average 3.3053580497714576) internal successors, (104132), 31504 states have internal predecessors, (104132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:44:16,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31505 states to 31505 states and 104132 transitions. [2022-01-18 01:44:16,956 INFO L78 Accepts]: Start accepts. Automaton has 31505 states and 104132 transitions. Word has length 331 [2022-01-18 01:44:16,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:44:16,956 INFO L470 AbstractCegarLoop]: Abstraction has 31505 states and 104132 transitions. [2022-01-18 01:44:16,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 11.3) internal successors, (565), 50 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:44:16,956 INFO L276 IsEmpty]: Start isEmpty. Operand 31505 states and 104132 transitions. [2022-01-18 01:44:17,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2022-01-18 01:44:17,026 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:44:17,026 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:44:17,047 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-01-18 01:44:17,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:44:17,238 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:44:17,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:44:17,238 INFO L85 PathProgramCache]: Analyzing trace with hash 765261942, now seen corresponding path program 10 times [2022-01-18 01:44:17,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:44:17,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405471076] [2022-01-18 01:44:17,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:44:17,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:44:17,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:44:18,028 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 3 proven. 138 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2022-01-18 01:44:18,029 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:44:18,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405471076] [2022-01-18 01:44:18,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405471076] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 01:44:18,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1092379519] [2022-01-18 01:44:18,029 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-18 01:44:18,029 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:44:18,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:44:18,030 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 01:44:18,031 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-01-18 01:44:18,257 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-18 01:44:18,258 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 01:44:18,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 796 conjuncts, 40 conjunts are in the unsatisfiable core [2022-01-18 01:44:18,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 01:44:19,862 INFO L353 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2022-01-18 01:44:19,862 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 20 [2022-01-18 01:44:19,902 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 3 proven. 138 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2022-01-18 01:44:19,902 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 01:44:20,073 INFO L353 Elim1Store]: treesize reduction 9, result has 43.8 percent of original size [2022-01-18 01:44:20,073 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 11 [2022-01-18 01:44:23,395 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 0 proven. 141 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2022-01-18 01:44:23,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1092379519] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 01:44:23,396 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 01:44:23,396 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 19, 19] total 53 [2022-01-18 01:44:23,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267744452] [2022-01-18 01:44:23,396 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 01:44:23,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-01-18 01:44:23,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:44:23,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-01-18 01:44:23,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=357, Invalid=2399, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 01:44:23,397 INFO L87 Difference]: Start difference. First operand 31505 states and 104132 transitions. Second operand has 53 states, 53 states have (on average 12.50943396226415) internal successors, (663), 53 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:44:26,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:44:26,501 INFO L93 Difference]: Finished difference Result 44148 states and 143085 transitions. [2022-01-18 01:44:26,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-01-18 01:44:26,501 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 12.50943396226415) internal successors, (663), 53 states have internal predecessors, (663), 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 331 [2022-01-18 01:44:26,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:44:26,556 INFO L225 Difference]: With dead ends: 44148 [2022-01-18 01:44:26,556 INFO L226 Difference]: Without dead ends: 21470 [2022-01-18 01:44:26,558 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 743 GetRequests, 635 SyntacticMatches, 5 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2909 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1743, Invalid=9177, Unknown=0, NotChecked=0, Total=10920 [2022-01-18 01:44:26,558 INFO L933 BasicCegarLoop]: 298 mSDtfsCounter, 3643 mSDsluCounter, 6699 mSDsCounter, 0 mSdLazyCounter, 1455 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3643 SdHoareTripleChecker+Valid, 6538 SdHoareTripleChecker+Invalid, 1642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 95 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 01:44:26,559 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3643 Valid, 6538 Invalid, 1642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 1455 Invalid, 0 Unknown, 95 Unchecked, 0.7s Time] [2022-01-18 01:44:26,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21470 states. [2022-01-18 01:44:26,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21470 to 17285. [2022-01-18 01:44:26,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17285 states, 17284 states have (on average 3.246702152279565) internal successors, (56116), 17284 states have internal predecessors, (56116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:44:26,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17285 states to 17285 states and 56116 transitions. [2022-01-18 01:44:26,962 INFO L78 Accepts]: Start accepts. Automaton has 17285 states and 56116 transitions. Word has length 331 [2022-01-18 01:44:26,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:44:26,962 INFO L470 AbstractCegarLoop]: Abstraction has 17285 states and 56116 transitions. [2022-01-18 01:44:26,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 12.50943396226415) internal successors, (663), 53 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:44:26,962 INFO L276 IsEmpty]: Start isEmpty. Operand 17285 states and 56116 transitions. [2022-01-18 01:44:27,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2022-01-18 01:44:27,000 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:44:27,001 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 9, 7, 7, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:44:27,026 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-01-18 01:44:27,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:44:27,201 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:44:27,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:44:27,202 INFO L85 PathProgramCache]: Analyzing trace with hash -980382932, now seen corresponding path program 11 times [2022-01-18 01:44:27,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:44:27,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768459494] [2022-01-18 01:44:27,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:44:27,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:44:27,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:44:27,402 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 127 proven. 272 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-01-18 01:44:27,402 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:44:27,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768459494] [2022-01-18 01:44:27,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768459494] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 01:44:27,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [465235244] [2022-01-18 01:44:27,402 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-01-18 01:44:27,402 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:44:27,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:44:27,403 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 01:44:27,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-01-18 01:44:28,067 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2022-01-18 01:44:28,067 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 01:44:28,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 947 conjuncts, 18 conjunts are in the unsatisfiable core [2022-01-18 01:44:28,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 01:44:29,083 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 353 proven. 46 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-01-18 01:44:29,084 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 01:44:30,069 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 78 proven. 321 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-01-18 01:44:30,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [465235244] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 01:44:30,069 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 01:44:30,069 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 46 [2022-01-18 01:44:30,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247058813] [2022-01-18 01:44:30,070 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 01:44:30,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-01-18 01:44:30,070 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:44:30,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-01-18 01:44:30,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=347, Invalid=1723, Unknown=0, NotChecked=0, Total=2070 [2022-01-18 01:44:30,071 INFO L87 Difference]: Start difference. First operand 17285 states and 56116 transitions. Second operand has 46 states, 46 states have (on average 12.282608695652174) internal successors, (565), 46 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:44:30,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:44:30,972 INFO L93 Difference]: Finished difference Result 31125 states and 100908 transitions. [2022-01-18 01:44:30,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 01:44:30,975 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 12.282608695652174) internal successors, (565), 46 states have internal predecessors, (565), 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 382 [2022-01-18 01:44:30,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:44:31,021 INFO L225 Difference]: With dead ends: 31125 [2022-01-18 01:44:31,021 INFO L226 Difference]: Without dead ends: 17297 [2022-01-18 01:44:31,022 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 806 GetRequests, 736 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1699 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=934, Invalid=4178, Unknown=0, NotChecked=0, Total=5112 [2022-01-18 01:44:31,022 INFO L933 BasicCegarLoop]: 275 mSDtfsCounter, 1676 mSDsluCounter, 4248 mSDsCounter, 0 mSdLazyCounter, 908 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1676 SdHoareTripleChecker+Valid, 4301 SdHoareTripleChecker+Invalid, 1016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 01:44:31,022 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1676 Valid, 4301 Invalid, 1016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 908 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 01:44:31,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17297 states. [2022-01-18 01:44:31,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17297 to 17292. [2022-01-18 01:44:31,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17292 states, 17291 states have (on average 3.2457926088716675) internal successors, (56123), 17291 states have internal predecessors, (56123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:44:31,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17292 states to 17292 states and 56123 transitions. [2022-01-18 01:44:31,429 INFO L78 Accepts]: Start accepts. Automaton has 17292 states and 56123 transitions. Word has length 382 [2022-01-18 01:44:31,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:44:31,429 INFO L470 AbstractCegarLoop]: Abstraction has 17292 states and 56123 transitions. [2022-01-18 01:44:31,429 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 12.282608695652174) internal successors, (565), 46 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:44:31,429 INFO L276 IsEmpty]: Start isEmpty. Operand 17292 states and 56123 transitions. [2022-01-18 01:44:31,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2022-01-18 01:44:31,460 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:44:31,460 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 9, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:44:31,486 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-01-18 01:44:31,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:44:31,662 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:44:31,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:44:31,663 INFO L85 PathProgramCache]: Analyzing trace with hash 83743507, now seen corresponding path program 12 times [2022-01-18 01:44:31,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:44:31,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920827375] [2022-01-18 01:44:31,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:44:31,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:44:31,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:44:31,921 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 213 proven. 249 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2022-01-18 01:44:31,921 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:44:31,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920827375] [2022-01-18 01:44:31,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920827375] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 01:44:31,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [807324528] [2022-01-18 01:44:31,921 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-01-18 01:44:31,921 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:44:31,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:44:31,923 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 01:44:31,962 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-01-18 01:44:32,446 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2022-01-18 01:44:32,446 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 01:44:32,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 849 conjuncts, 22 conjunts are in the unsatisfiable core [2022-01-18 01:44:32,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 01:44:33,566 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 323 proven. 24 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2022-01-18 01:44:33,566 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 01:44:34,465 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 27 proven. 320 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2022-01-18 01:44:34,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [807324528] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 01:44:34,465 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 01:44:34,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 14, 14] total 44 [2022-01-18 01:44:34,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517649904] [2022-01-18 01:44:34,465 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 01:44:34,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-01-18 01:44:34,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:44:34,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-01-18 01:44:34,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=205, Invalid=1687, Unknown=0, NotChecked=0, Total=1892 [2022-01-18 01:44:34,467 INFO L87 Difference]: Start difference. First operand 17292 states and 56123 transitions. Second operand has 44 states, 44 states have (on average 15.977272727272727) internal successors, (703), 44 states have internal predecessors, (703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:44:36,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:44:36,850 INFO L93 Difference]: Finished difference Result 40737 states and 131743 transitions. [2022-01-18 01:44:36,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2022-01-18 01:44:36,850 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 15.977272727272727) internal successors, (703), 44 states have internal predecessors, (703), 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 389 [2022-01-18 01:44:36,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:44:36,882 INFO L225 Difference]: With dead ends: 40737 [2022-01-18 01:44:36,882 INFO L226 Difference]: Without dead ends: 12216 [2022-01-18 01:44:36,883 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 881 GetRequests, 756 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5076 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1986, Invalid=14016, Unknown=0, NotChecked=0, Total=16002 [2022-01-18 01:44:36,883 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 2771 mSDsluCounter, 6146 mSDsCounter, 0 mSdLazyCounter, 1337 mSolverCounterSat, 194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2771 SdHoareTripleChecker+Valid, 6195 SdHoareTripleChecker+Invalid, 1531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 194 IncrementalHoareTripleChecker+Valid, 1337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 01:44:36,884 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2771 Valid, 6195 Invalid, 1531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [194 Valid, 1337 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 01:44:36,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12216 states. [2022-01-18 01:44:37,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12216 to 12206. [2022-01-18 01:44:37,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12206 states, 12205 states have (on average 3.3381401065137237) internal successors, (40742), 12205 states have internal predecessors, (40742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:44:37,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12206 states to 12206 states and 40742 transitions. [2022-01-18 01:44:37,104 INFO L78 Accepts]: Start accepts. Automaton has 12206 states and 40742 transitions. Word has length 389 [2022-01-18 01:44:37,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:44:37,104 INFO L470 AbstractCegarLoop]: Abstraction has 12206 states and 40742 transitions. [2022-01-18 01:44:37,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 15.977272727272727) internal successors, (703), 44 states have internal predecessors, (703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:44:37,104 INFO L276 IsEmpty]: Start isEmpty. Operand 12206 states and 40742 transitions. [2022-01-18 01:44:37,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2022-01-18 01:44:37,125 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:44:37,125 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:44:37,133 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-01-18 01:44:37,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:44:37,326 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:44:37,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:44:37,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1626563064, now seen corresponding path program 13 times [2022-01-18 01:44:37,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:44:37,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592684246] [2022-01-18 01:44:37,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:44:37,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:44:37,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:44:38,215 INFO L134 CoverageAnalysis]: Checked inductivity of 577 backedges. 16 proven. 440 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-01-18 01:44:38,215 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:44:38,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592684246] [2022-01-18 01:44:38,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592684246] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 01:44:38,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [308163982] [2022-01-18 01:44:38,216 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-01-18 01:44:38,216 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:44:38,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:44:38,217 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 01:44:38,218 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-01-18 01:44:38,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:44:38,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 972 conjuncts, 45 conjunts are in the unsatisfiable core [2022-01-18 01:44:38,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 01:44:40,618 INFO L353 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2022-01-18 01:44:40,618 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 20 [2022-01-18 01:44:40,664 INFO L134 CoverageAnalysis]: Checked inductivity of 577 backedges. 12 proven. 360 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2022-01-18 01:44:40,665 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 01:44:40,851 INFO L353 Elim1Store]: treesize reduction 9, result has 43.8 percent of original size [2022-01-18 01:44:40,852 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 11 [2022-01-18 01:44:45,132 INFO L134 CoverageAnalysis]: Checked inductivity of 577 backedges. 12 proven. 360 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2022-01-18 01:44:45,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [308163982] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 01:44:45,133 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 01:44:45,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 23, 23] total 73 [2022-01-18 01:44:45,133 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006643974] [2022-01-18 01:44:45,133 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 01:44:45,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2022-01-18 01:44:45,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:44:45,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2022-01-18 01:44:45,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=581, Invalid=4675, Unknown=0, NotChecked=0, Total=5256 [2022-01-18 01:44:45,135 INFO L87 Difference]: Start difference. First operand 12206 states and 40742 transitions. Second operand has 73 states, 73 states have (on average 11.027397260273972) internal successors, (805), 73 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:44:51,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:44:51,820 INFO L93 Difference]: Finished difference Result 29219 states and 96000 transitions. [2022-01-18 01:44:51,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2022-01-18 01:44:51,821 INFO L78 Accepts]: Start accepts. Automaton has has 73 states, 73 states have (on average 11.027397260273972) internal successors, (805), 73 states have internal predecessors, (805), 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 399 [2022-01-18 01:44:51,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:44:51,901 INFO L225 Difference]: With dead ends: 29219 [2022-01-18 01:44:51,901 INFO L226 Difference]: Without dead ends: 27269 [2022-01-18 01:44:51,903 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 949 GetRequests, 762 SyntacticMatches, 5 SemanticMatches, 182 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10852 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=4335, Invalid=29337, Unknown=0, NotChecked=0, Total=33672 [2022-01-18 01:44:51,903 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 4629 mSDsluCounter, 12286 mSDsCounter, 0 mSdLazyCounter, 3588 mSolverCounterSat, 235 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4629 SdHoareTripleChecker+Valid, 11522 SdHoareTripleChecker+Invalid, 3855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 235 IncrementalHoareTripleChecker+Valid, 3588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 32 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-01-18 01:44:51,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4629 Valid, 11522 Invalid, 3855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [235 Valid, 3588 Invalid, 0 Unknown, 32 Unchecked, 1.5s Time] [2022-01-18 01:44:51,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27269 states. [2022-01-18 01:44:52,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27269 to 23176. [2022-01-18 01:44:52,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23176 states, 23175 states have (on average 3.3529665587918016) internal successors, (77705), 23175 states have internal predecessors, (77705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:44:52,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23176 states to 23176 states and 77705 transitions. [2022-01-18 01:44:52,344 INFO L78 Accepts]: Start accepts. Automaton has 23176 states and 77705 transitions. Word has length 399 [2022-01-18 01:44:52,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:44:52,345 INFO L470 AbstractCegarLoop]: Abstraction has 23176 states and 77705 transitions. [2022-01-18 01:44:52,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 73 states have (on average 11.027397260273972) internal successors, (805), 73 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:44:52,345 INFO L276 IsEmpty]: Start isEmpty. Operand 23176 states and 77705 transitions. [2022-01-18 01:44:52,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2022-01-18 01:44:52,392 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:44:52,393 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:44:52,412 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-01-18 01:44:52,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2022-01-18 01:44:52,595 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:44:52,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:44:52,595 INFO L85 PathProgramCache]: Analyzing trace with hash -496228496, now seen corresponding path program 14 times [2022-01-18 01:44:52,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:44:52,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338563685] [2022-01-18 01:44:52,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:44:52,596 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:44:52,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:44:53,511 INFO L134 CoverageAnalysis]: Checked inductivity of 577 backedges. 16 proven. 440 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-01-18 01:44:53,511 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:44:53,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338563685] [2022-01-18 01:44:53,511 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338563685] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 01:44:53,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [932243551] [2022-01-18 01:44:53,512 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 01:44:53,512 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:44:53,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:44:53,514 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 01:44:53,515 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-01-18 01:44:53,738 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 01:44:53,738 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 01:44:53,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 972 conjuncts, 44 conjunts are in the unsatisfiable core [2022-01-18 01:44:53,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 01:44:55,812 INFO L353 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2022-01-18 01:44:55,813 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 20 [2022-01-18 01:44:55,852 INFO L134 CoverageAnalysis]: Checked inductivity of 577 backedges. 9 proven. 363 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2022-01-18 01:44:55,852 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 01:44:55,991 INFO L353 Elim1Store]: treesize reduction 9, result has 43.8 percent of original size [2022-01-18 01:44:55,992 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 11 [2022-01-18 01:45:01,016 INFO L134 CoverageAnalysis]: Checked inductivity of 577 backedges. 98 proven. 274 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2022-01-18 01:45:01,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [932243551] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 01:45:01,016 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 01:45:01,016 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 23, 23] total 73 [2022-01-18 01:45:01,016 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367516484] [2022-01-18 01:45:01,016 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 01:45:01,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2022-01-18 01:45:01,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:45:01,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2022-01-18 01:45:01,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=427, Invalid=4829, Unknown=0, NotChecked=0, Total=5256 [2022-01-18 01:45:01,018 INFO L87 Difference]: Start difference. First operand 23176 states and 77705 transitions. Second operand has 73 states, 73 states have (on average 11.027397260273972) internal successors, (805), 73 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:45:06,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:45:06,563 INFO L93 Difference]: Finished difference Result 24462 states and 81670 transitions. [2022-01-18 01:45:06,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-01-18 01:45:06,564 INFO L78 Accepts]: Start accepts. Automaton has has 73 states, 73 states have (on average 11.027397260273972) internal successors, (805), 73 states have internal predecessors, (805), 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 399 [2022-01-18 01:45:06,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:45:06,593 INFO L225 Difference]: With dead ends: 24462 [2022-01-18 01:45:06,594 INFO L226 Difference]: Without dead ends: 12394 [2022-01-18 01:45:06,597 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 934 GetRequests, 759 SyntacticMatches, 7 SemanticMatches, 168 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8797 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=3358, Invalid=25372, Unknown=0, NotChecked=0, Total=28730 [2022-01-18 01:45:06,597 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 4468 mSDsluCounter, 11084 mSDsCounter, 0 mSdLazyCounter, 3349 mSolverCounterSat, 240 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4468 SdHoareTripleChecker+Valid, 10749 SdHoareTripleChecker+Invalid, 3658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 240 IncrementalHoareTripleChecker+Valid, 3349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 69 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-18 01:45:06,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4468 Valid, 10749 Invalid, 3658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [240 Valid, 3349 Invalid, 0 Unknown, 69 Unchecked, 1.3s Time] [2022-01-18 01:45:06,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12394 states. [2022-01-18 01:45:06,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12394 to 12213. [2022-01-18 01:45:06,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12213 states, 12212 states have (on average 3.3367998689813296) internal successors, (40749), 12212 states have internal predecessors, (40749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:45:06,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12213 states to 12213 states and 40749 transitions. [2022-01-18 01:45:06,783 INFO L78 Accepts]: Start accepts. Automaton has 12213 states and 40749 transitions. Word has length 399 [2022-01-18 01:45:06,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:45:06,783 INFO L470 AbstractCegarLoop]: Abstraction has 12213 states and 40749 transitions. [2022-01-18 01:45:06,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 73 states have (on average 11.027397260273972) internal successors, (805), 73 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:45:06,783 INFO L276 IsEmpty]: Start isEmpty. Operand 12213 states and 40749 transitions. [2022-01-18 01:45:06,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2022-01-18 01:45:06,802 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:45:06,802 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:45:06,823 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-01-18 01:45:07,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2022-01-18 01:45:07,003 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:45:07,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:45:07,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1834694123, now seen corresponding path program 15 times [2022-01-18 01:45:07,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:45:07,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322417377] [2022-01-18 01:45:07,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:45:07,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:45:07,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:45:08,443 INFO L134 CoverageAnalysis]: Checked inductivity of 606 backedges. 3 proven. 499 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2022-01-18 01:45:08,444 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:45:08,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322417377] [2022-01-18 01:45:08,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322417377] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 01:45:08,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1972122832] [2022-01-18 01:45:08,444 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-18 01:45:08,444 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:45:08,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:45:08,445 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 01:45:08,446 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-01-18 01:45:09,037 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2022-01-18 01:45:09,037 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 01:45:09,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 835 conjuncts, 87 conjunts are in the unsatisfiable core [2022-01-18 01:45:09,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 01:45:12,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 01:45:12,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 01:45:12,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 01:45:12,208 INFO L353 Elim1Store]: treesize reduction 40, result has 7.0 percent of original size [2022-01-18 01:45:12,208 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 83 treesize of output 26 [2022-01-18 01:45:12,266 INFO L134 CoverageAnalysis]: Checked inductivity of 606 backedges. 295 proven. 110 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2022-01-18 01:45:12,267 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 01:45:14,263 INFO L353 Elim1Store]: treesize reduction 77, result has 25.2 percent of original size [2022-01-18 01:45:14,263 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 64 treesize of output 37 [2022-01-18 01:45:15,292 INFO L134 CoverageAnalysis]: Checked inductivity of 606 backedges. 16 proven. 376 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2022-01-18 01:45:15,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1972122832] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 01:45:15,292 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 01:45:15,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 31, 23] total 86 [2022-01-18 01:45:15,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166144136] [2022-01-18 01:45:15,292 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 01:45:15,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 86 states [2022-01-18 01:45:15,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:45:15,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2022-01-18 01:45:15,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=702, Invalid=6608, Unknown=0, NotChecked=0, Total=7310 [2022-01-18 01:45:15,295 INFO L87 Difference]: Start difference. First operand 12213 states and 40749 transitions. Second operand has 86 states, 86 states have (on average 9.709302325581396) internal successors, (835), 86 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:45:25,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:45:25,847 INFO L93 Difference]: Finished difference Result 70790 states and 239055 transitions. [2022-01-18 01:45:25,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 139 states. [2022-01-18 01:45:25,848 INFO L78 Accepts]: Start accepts. Automaton has has 86 states, 86 states have (on average 9.709302325581396) internal successors, (835), 86 states have internal predecessors, (835), 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 406 [2022-01-18 01:45:25,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:45:25,914 INFO L225 Difference]: With dead ends: 70790 [2022-01-18 01:45:25,915 INFO L226 Difference]: Without dead ends: 24221 [2022-01-18 01:45:25,921 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 988 GetRequests, 770 SyntacticMatches, 0 SemanticMatches, 218 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15074 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=5548, Invalid=42632, Unknown=0, NotChecked=0, Total=48180 [2022-01-18 01:45:25,922 INFO L933 BasicCegarLoop]: 410 mSDtfsCounter, 7962 mSDsluCounter, 12401 mSDsCounter, 0 mSdLazyCounter, 4768 mSolverCounterSat, 364 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7962 SdHoareTripleChecker+Valid, 12155 SdHoareTripleChecker+Invalid, 5295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 364 IncrementalHoareTripleChecker+Valid, 4768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 163 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:45:25,922 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7962 Valid, 12155 Invalid, 5295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [364 Valid, 4768 Invalid, 0 Unknown, 163 Unchecked, 2.1s Time] [2022-01-18 01:45:25,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24221 states. [2022-01-18 01:45:26,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24221 to 12220. [2022-01-18 01:45:26,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12220 states, 12219 states have (on average 3.3354611670349454) internal successors, (40756), 12219 states have internal predecessors, (40756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:45:26,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12220 states to 12220 states and 40756 transitions. [2022-01-18 01:45:26,278 INFO L78 Accepts]: Start accepts. Automaton has 12220 states and 40756 transitions. Word has length 406 [2022-01-18 01:45:26,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:45:26,278 INFO L470 AbstractCegarLoop]: Abstraction has 12220 states and 40756 transitions. [2022-01-18 01:45:26,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 86 states, 86 states have (on average 9.709302325581396) internal successors, (835), 86 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:45:26,279 INFO L276 IsEmpty]: Start isEmpty. Operand 12220 states and 40756 transitions. [2022-01-18 01:45:26,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2022-01-18 01:45:26,300 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:45:26,300 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:45:26,306 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-01-18 01:45:26,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2022-01-18 01:45:26,502 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:45:26,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:45:26,503 INFO L85 PathProgramCache]: Analyzing trace with hash 2037352616, now seen corresponding path program 16 times [2022-01-18 01:45:26,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:45:26,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96086664] [2022-01-18 01:45:26,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:45:26,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:45:26,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:45:29,954 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 77 proven. 471 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-01-18 01:45:29,954 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:45:29,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96086664] [2022-01-18 01:45:29,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96086664] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 01:45:29,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [288469329] [2022-01-18 01:45:29,955 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-18 01:45:29,955 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:45:29,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:45:29,956 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 01:45:29,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-01-18 01:45:30,378 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-18 01:45:30,378 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 01:45:30,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 998 conjuncts, 36 conjunts are in the unsatisfiable core [2022-01-18 01:45:30,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 01:45:31,493 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 0 proven. 141 refuted. 0 times theorem prover too weak. 501 trivial. 0 not checked. [2022-01-18 01:45:31,493 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 01:45:31,582 INFO L353 Elim1Store]: treesize reduction 9, result has 43.8 percent of original size [2022-01-18 01:45:31,582 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 11 [2022-01-18 01:45:32,410 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 562 trivial. 0 not checked. [2022-01-18 01:45:32,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [288469329] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 01:45:32,410 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 01:45:32,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 13, 8] total 53 [2022-01-18 01:45:32,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156941514] [2022-01-18 01:45:32,410 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 01:45:32,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-01-18 01:45:32,411 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:45:32,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-01-18 01:45:32,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=2572, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 01:45:32,412 INFO L87 Difference]: Start difference. First operand 12220 states and 40756 transitions. Second operand has 53 states, 53 states have (on average 10.49056603773585) internal successors, (556), 53 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:45:44,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:45:44,384 INFO L93 Difference]: Finished difference Result 72227 states and 243434 transitions. [2022-01-18 01:45:44,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2022-01-18 01:45:44,385 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 10.49056603773585) internal successors, (556), 53 states have internal predecessors, (556), 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 413 [2022-01-18 01:45:44,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:45:44,385 INFO L225 Difference]: With dead ends: 72227 [2022-01-18 01:45:44,385 INFO L226 Difference]: Without dead ends: 0 [2022-01-18 01:45:44,386 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1000 GetRequests, 813 SyntacticMatches, 7 SemanticMatches, 180 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10394 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=2864, Invalid=30078, Unknown=0, NotChecked=0, Total=32942 [2022-01-18 01:45:44,387 INFO L933 BasicCegarLoop]: 361 mSDtfsCounter, 4801 mSDsluCounter, 11310 mSDsCounter, 0 mSdLazyCounter, 4320 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4801 SdHoareTripleChecker+Valid, 10743 SdHoareTripleChecker+Invalid, 4541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 4320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-01-18 01:45:44,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4801 Valid, 10743 Invalid, 4541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 4320 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-01-18 01:45:44,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-18 01:45:44,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-18 01:45:44,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:45:44,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-18 01:45:44,387 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 413 [2022-01-18 01:45:44,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:45:44,387 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-18 01:45:44,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 10.49056603773585) internal successors, (556), 53 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:45:44,387 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-18 01:45:44,387 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-18 01:45:44,390 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-01-18 01:45:44,393 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-01-18 01:45:44,393 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-01-18 01:45:44,393 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-01-18 01:45:44,410 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-01-18 01:45:44,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:45:44,604 INFO L732 BasicCegarLoop]: Path program histogram: [16, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:45:44,605 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 01:45:44,605 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 01:45:44,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 01:45:44 BasicIcfg [2022-01-18 01:45:44,607 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 01:45:44,608 INFO L158 Benchmark]: Toolchain (without parser) took 389718.26ms. Allocated memory was 379.6MB in the beginning and 16.0GB in the end (delta: 15.6GB). Free memory was 324.4MB in the beginning and 8.5GB in the end (delta: -8.2GB). Peak memory consumption was 7.4GB. Max. memory is 16.0GB. [2022-01-18 01:45:44,608 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 379.6MB. Free memory is still 340.8MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 01:45:44,608 INFO L158 Benchmark]: CACSL2BoogieTranslator took 293.34ms. Allocated memory was 379.6MB in the beginning and 490.7MB in the end (delta: 111.1MB). Free memory was 324.3MB in the beginning and 460.1MB in the end (delta: -135.9MB). Peak memory consumption was 10.6MB. Max. memory is 16.0GB. [2022-01-18 01:45:44,608 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.11ms. Allocated memory is still 490.7MB. Free memory was 460.1MB in the beginning and 457.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2022-01-18 01:45:44,608 INFO L158 Benchmark]: Boogie Preprocessor took 48.23ms. Allocated memory is still 490.7MB. Free memory was 457.0MB in the beginning and 454.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 01:45:44,609 INFO L158 Benchmark]: RCFGBuilder took 791.19ms. Allocated memory is still 490.7MB. Free memory was 454.9MB in the beginning and 414.0MB in the end (delta: 40.9MB). Peak memory consumption was 39.8MB. Max. memory is 16.0GB. [2022-01-18 01:45:44,609 INFO L158 Benchmark]: TraceAbstraction took 388524.29ms. Allocated memory was 490.7MB in the beginning and 16.0GB in the end (delta: 15.5GB). Free memory was 414.0MB in the beginning and 8.5GB in the end (delta: -8.1GB). Peak memory consumption was 7.4GB. Max. memory is 16.0GB. [2022-01-18 01:45:44,609 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 379.6MB. Free memory is still 340.8MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 293.34ms. Allocated memory was 379.6MB in the beginning and 490.7MB in the end (delta: 111.1MB). Free memory was 324.3MB in the beginning and 460.1MB in the end (delta: -135.9MB). Peak memory consumption was 10.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 56.11ms. Allocated memory is still 490.7MB. Free memory was 460.1MB in the beginning and 457.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 48.23ms. Allocated memory is still 490.7MB. Free memory was 457.0MB in the beginning and 454.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 791.19ms. Allocated memory is still 490.7MB. Free memory was 454.9MB in the beginning and 414.0MB in the end (delta: 40.9MB). Peak memory consumption was 39.8MB. Max. memory is 16.0GB. * TraceAbstraction took 388524.29ms. Allocated memory was 490.7MB in the beginning and 16.0GB in the end (delta: 15.5GB). Free memory was 414.0MB in the beginning and 8.5GB in the end (delta: -8.1GB). Peak memory consumption was 7.4GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 162]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 284 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 388.4s, OverallIterations: 38, TraceHistogramMax: 12, PathProgramHistogramMax: 16, EmptinessCheckTime: 5.0s, AutomataDifference: 151.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 67964 SdHoareTripleChecker+Valid, 19.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 67964 mSDsluCounter, 146580 SdHoareTripleChecker+Invalid, 16.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 1952 IncrementalHoareTripleChecker+Unchecked, 145731 mSDsCounter, 2702 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 39445 IncrementalHoareTripleChecker+Invalid, 44099 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2702 mSolverCounterUnsat, 10529 mSDtfsCounter, 39445 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15341 GetRequests, 13194 SyntacticMatches, 47 SemanticMatches, 2100 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 77693 ImplicationChecksByTransitivity, 63.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=328549occurred in iteration=25, InterpolantAutomatonStates: 1330, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 136.6s AutomataMinimizationTime, 38 MinimizatonAttempts, 1236777 StatesRemovedByMinimization, 36 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.9s SsaConstructionTime, 5.4s SatisfiabilityAnalysisTime, 81.2s InterpolantComputationTime, 16982 NumberOfCodeBlocks, 16792 NumberOfCodeBlocksAsserted, 108 NumberOfCheckSat, 23609 ConstructedInterpolants, 313 QuantifiedInterpolants, 219236 SizeOfPredicates, 468 NumberOfNonLiveVariables, 16116 ConjunctsInSsa, 695 ConjunctsInUnsatCore, 83 InterpolantComputations, 16 PerfectInterpolantSequences, 8201/15415 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-01-18 01:45:44,624 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...